CN108138009A - Tackness vapor barrier performance laminate and display device - Google Patents
Tackness vapor barrier performance laminate and display device Download PDFInfo
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- CN108138009A CN108138009A CN201680042765.9A CN201680042765A CN108138009A CN 108138009 A CN108138009 A CN 108138009A CN 201680042765 A CN201680042765 A CN 201680042765A CN 108138009 A CN108138009 A CN 108138009A
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- Prior art keywords
- ingredient
- aforementioned
- tackness
- barrier performance
- vapor barrier
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J201/00—Adhesives based on unspecified macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J153/00—Adhesives based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
- C09J153/02—Vinyl aromatic monomers and conjugated dienes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/312—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier parameters being the characterizing feature
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Laminated Bodies (AREA)
- Electroluminescent Light Sources (AREA)
- Adhesive Tapes (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The present invention provides a kind of tackness vapor barrier performance laminate and display device, tackness vapor barrier performance laminate includes base material and the tackness vapor barrier performance laminate for the adhesive layer being set in aforementioned substrates, and aforementioned adhesive layer is obtained by the adhesive composition comprising (A) ingredient, (B) ingredient and (C) ingredient.
Description
Technical field
The present invention relates to a kind of tackness vapor barrier performance laminate and display devices.
Background technology
In recent years, it in the display device of organic el device etc., the manufacture using the solar cell of organic film, is pasting
When closing member of formation, adhesive composition can be used.
However, since the organic film water-resistance for forming such device is weak, in order to maintain the function of the organic layer, need to take anti-
The only measure (patent document 1) of vapor transmission.So, it is desirable that have using vapor as the adhesive agent of the gas barrier performance of representative
Exploitation.
[prior art document]
[patent document]
Patent document 1：Japanese Unexamined Patent Publication 2004-9395 bulletins
Invention content
[the invention subject to be solved]
On the other hand, vapor penetrates in order to prevent, and by member of formation each other with acrylic adhesive then when,
Because the vapor barrier performance of acrylic adhesive is low, therefore it is difficult to prevent from penetrating into vapor from the end face of adhesive layer.
[means to solve the problem]
The inventors of the present invention, it is wholwe-hearted examine display device when manufacture used in adhesive composition composition when,
It was found that there is high water vapor barrier performance by the adhesive layer that the adhesive composition comprising specific material is formed, and with good
Durability (particularly durability) under high temperature and/or the inferior harsh environment of high humidity environment, adaptation, weatherability, softness
Property, segment difference tracing ability, the transparency, wet-heat resisting albefaction, leakproof photosensitiveness and pliability.
The present invention provides one kind with high water vapor barrier performance and with good durability, adaptation, weatherability, softness
Property, segment difference tracing ability, the transparency, wet-heat resisting albefaction, leakproof photosensitiveness and pliability tackness vapor barrier performance laminate
And display device.
1. the tackness vapor barrier performance laminate about an aspect of the invention, it is characterised in that including base material and setting
In the adhesive layer in aforementioned substrates；
Aforementioned adhesive layer is obtained by the adhesive composition comprising (A) ingredient, (B) ingredient and (C) ingredient；
The hydrogenated block copolymer of aforementioned (A) ingredient has the hard chain of the component of polymer from aromatic vinyl monomer
The soft chain segment of section and component of polymer from conjugate diene monomer；
Aforementioned (B) ingredient is the hydrogenated petroleum resin that bromine valency is below 10g/100g and softening point is 100 DEG C or more；
Aforementioned (C) ingredient is with the property to mix with aforementioned soft chain segment, is liquid at room temperature (23 DEG C) and quantity is put down
Average molecular weight is less than 50,000 resin；
The film thickness of aforementioned adhesive layer be 5 μm or more 300 μm hereinafter, and the film thickness of the adhesive layer when being 50 μm this is glutinous
The vapor transmission rate of oxidant layer, does not reach 30g/m in 0208,40 DEG C × 90%RH of JIS Z2·day。
2. the tackness vapor barrier performance laminate described in above-mentioned 1, which is characterized in that vapor transmission rate is in JIS Z
0208th, 40 DEG C × 90%RH does not reach 25g/m2·day。
3. the tackness vapor barrier performance laminate described in above-mentioned 1 or 2, which is characterized in that hydrogenated in forming aforementioned (A)
The hydrogenation ratio for the double bond that the component of polymer of the conjugate diene monomer of block copolymer is included is more than 90%.
4. the tackness vapor barrier performance laminate described in any one of above-mentioned 1 to 3, which is characterized in that aforementioned (B) into
It can be aromatic copolyester collaboration hydrogenated petroleum resin to divide.
5. the tackness vapor barrier performance laminate described in any one of above-mentioned 1 to 4, which is characterized in that aforementioned to stick together
Agent constituent may include：Relative to aforementioned below mass part for more than 10 mass parts 500 of aforementioned (A) ingredient of 100 mass parts
(B) ingredient and relative to 100 mass parts aforementioned (A) ingredient for more than 20 mass parts 500 aforementioned (C) below mass part into
Point.
6. the tackness vapor barrier performance laminate described in any one of above-mentioned 1 to 5, which is characterized in that aforementioned substrates
Vapor transmission rate, in 0208,40 DEG C × 90%RH of JIS Z do not reach 30g/m2·day。
7. the display device of another aspect about the present invention, including the tackness described in any one of above-mentioned 1 to 6
Vapor barrier performance laminate.
[The effect of invention]
Above-mentioned tackness vapor barrier performance laminate, because with by including aforementioned (A) ingredient, aforementioned (B) ingredient and preceding
The adhesive layer obtained by the adhesive composition of (C) ingredient is stated, therefore with high water vapor barrier performance, and with good durability
(durability particularly under high temperature and/or the inferior harsh environment of high humidity environment), adaptation, weatherability, flexibility, segment difference are followed
Property, the transparency, wet-heat resisting albefaction, leakproof photosensitiveness and pliability.
Moreover, including the above-mentioned display device of above-mentioned tackness vapor barrier performance laminate, there is high water vapor
Barrier performance, and durability (durability particularly under high temperature and/or the inferior harsh environment of high humidity environment), closely sealed can needed
Property, weatherability, flexibility, segment difference tracing ability, the transparency, wet-heat resisting albefaction, leakproof photosensitiveness or pliability environment under use.
Description of the drawings
Fig. 1 shows the diagrammatic cross-sections of the tackness vapor barrier performance laminate of an embodiment aspect of the invention.
Fig. 2 represents the diagrammatic cross-section of the tackness vapor barrier performance laminate of an embodiment aspect of the invention.
Fig. 3 represents the diagrammatic cross-section of the tackness vapor barrier performance laminate of an embodiment aspect of the invention.
Specific embodiment
Hereinafter, with reference to drawing and the present invention will be described in detail.Also, in the present invention, if without separately illustrating, " part " refers to " matter
Measure part ", " % " refers to " quality % ".
1. tackness vapor barrier performance laminate
The tackness vapor barrier performance laminate of an embodiment aspect of the invention (also has only be recorded as " laminate " below
Situation), the tackness vapor barrier performance laminate including base material and the adhesive layer being set in aforementioned substrates.It is aforementioned to stick together
Oxidant layer is obtained by the adhesive composition comprising (A) ingredient, (B) ingredient and (C) ingredient.
1.1. the concrete example of laminate
Fig. 1, Fig. 2 and Fig. 3 represent an example of the tackness vapor barrier performance laminate about this embodiment aspect respectively
Diagrammatic cross-section.
Tackness vapor barrier performance laminate 10 shown in FIG. 1 including base material 1 and is set on base material 1 (base material 1
Surface) adhesive layer 2.The material of base material 1, can be for inorganic material such as glass or with polyethylene, polypropylene, poly- terephthaldehyde
The plastics such as sour second diester, polymethyl methacrylate, polyester, makrolon are the organic material of representative.Furthermore it in Fig. 1, represents
Base material 1 is the situation of individual layer.
Alternatively, base material 1 can be inorganic material (such as at least one kind of oxide, nitridation in Si, Al, In, Sn, Zn and Ti
The layer of object or oxynitride).
Tackness vapor barrier performance laminate 20 shown in Fig. 2, including base material 11 and is set on the surface of base material 11
Adhesive layer 2.In the example that Fig. 2, display base material 11 are made of plural layer.Also that is, as shown in Fig. 2, base material 11 includes the 1st layer
21 and be set to the 1st layer 21 surface other layers (the 2nd layer 22), also can on the 2nd layer 22 set adhesive layer 2.
1st layer 21 of material can be the inorganic material, above-mentioned exemplified as organic materials such as the plastics of base material 1 of glass etc..
There is no particular restriction for 2nd layer 22 of material, can be inorganic system's barrier such as the ceramics such as metal or silica, silicon oxynitride, silicon nitride
Property material, also can be above-mentioned exemplified as organic materials such as the plastics of base material 1.
More specifically, the 1st layer 21 or the 2nd layers 22 can be inorganic material (such as in Si, Al, In, Sn, Zn and Ti
The layer (such as being deposited in evaporation film on organic film etc.) of at least one kind of oxide, nitride or oxynitride.
Furthermore in Fig. 2, display adhesive layer 2 is set to the example on the 2nd layer 22 of base material 11, only in the 1st layer of base material 11
It, can be in the opposite side setting adhesive layer 2 or also can be between the 1st layer 21 and the 2nd layers 22 of the side of the 2nd layer 22 of setting in 21
Adhesive layer 2 is set.
Fig. 3 represents that the laminate 30 of display device includes the example of organic el element 3.Also that is, lamination shown in Fig. 3
Body 30 including base material 1, the organic el element being set on base material 13 and is set on base material 1 and covering organic el element 3
Adhesive layer 2.
Shown laminate 30 according to fig. 3, adhesive layer 2 are set in a manner of covering organic el element 3, are thereby sealed
Organic el element 3, therefore infiltration of the vapor to organic el element 3 can be blocked.
According to the laminate 10,20,30 of Fig. 1, Fig. 2 and Fig. 3, end face (Fig. 1, Fig. 2, Fig. 3 from adhesive layer 2 can be blocked
Paper transverse direction) vapor infiltration.Moreover, in laminate 10,20,30, such as the manufacturing step of aforementioned laminate
Midway it is general, be in the state that other layers are not provided on the surface of adhesive layer 2, can also block from adhesive layer 2
The vertical direction (the paper longitudinal direction of Fig. 1, Fig. 2, Fig. 3) in surface vapor infiltration.
The adhesive layer 2 of Fig. 1, Fig. 2 and Fig. 3 can be directly coated at base material 1 or base by by aftermentioned adhesive composition
The surface of material 11 and formed, the table of base material 1 or base material 11 can be also needed on by the adhesive layer 2 that will be formed in fissility film
Face forms adhesive layer 2 in the surface of base material 1 or base material 11.The vapor transmission rate of base material 1 or base material 11, in JIS Z
0208th, 40 DEG C × 90%RH (teacup method, カ ッ プ methods) (version in 1976) does not reach 30g/m2Day, not reach 10g/m2Day is
Preferably, not up to 1g/m2Day is (is usually more preferably 1 × 10-6g/m2More than day).Such as the vapor transmission of base material 1,11
When rate is lower than the vapor transmission rate of adhesive layer 2 (when more specifically, there is vapor barrier performance for base material 1,11), because
The adhesive layer of the present invention can inhibit infiltration from the water of end face, therefore the vapor transmission rate of laminate 10,20,30, in essence
On can be base material 1,11 vapor transmission rate.
The vapor transmission rate of adhesive layer 2 when the film thickness of adhesive layer 2 is 50 μm, in 0208,40 DEG C of JIS Z ×
90%RH does not reach 30g/m2Day, not reach 25g/m2Day is preferable, not up to 22g/m2Day for more preferably (be usually 1 ×
10-4g/m2More than day).In the present invention, so-called " the vapor transmission rate of every 50 μm of adhesive layer " refers to film thickness and is adjusted to 50 μ
Measured value (the g/m of the vapor transmission rate of the 0208,40 DEG C × 90%RH of JIS Z of the adhesive agent individual layer of m2·day)。
The film thickness of base material 1,11, usually 1 μm or more 500 μm hereinafter, preferably less than 5 μm or more 200 μm.
Moreover, (for example, this embodiment aspect when the tackness vapor barrier performance laminate of this embodiment aspect has the transparency
Tackness vapor barrier performance laminate full light transmittance, in JIS K7361 methods (version in 1997) be more than 85%
When), the full light transmittance of base material 1,11, using in JIS K7361 methods as more than 85% (being usually less than 100%) be it is preferable,
More than 87% is more preferably.
1.2. vapor barrier performance
The tackness vapor barrier performance laminate of this embodiment aspect has vapor barrier performance.More specifically, this reality
The vapor transmission rate of the tackness vapor barrier performance laminate of aspect is applied, is not reached in 0208,40 DEG C × 90%RH of JIS Z
30g/m2Day, not reach 10g/m2Day is preferable, not up to 1g/m2Day is more preferably.
In the present invention, so-called " vapor barrier performance " refers to the performance of the infiltration for blocking vapor, and specifically vapor is worn
Saturating rate does not reach 30g/m in 0208,40 DEG C × 90%RH of JIS Z2·day。
According to the tackness vapor barrier performance laminate of this embodiment aspect, the hydrophobicity of aforementioned adhesive layer is good, because can
The infiltration of the vapor from the end face of the adhesive layer is prevented, therefore vapor barrier performance is good.Therefore, can be suitble to be used in needs water
The purposes of steam barrier performance.
1.3. durability, leakproof photosensitiveness and tackness
The tackness vapor barrier performance laminate of this embodiment aspect, have good durability (particularly high temperature and/or
Durability under the inferior harsh environment of high humidity environment), leakproof photosensitiveness and tackness.The tackness vapor barrier of this embodiment aspect
Durability, leakproof photosensitiveness and the tackness of property laminate, mainly originate to form adhesive agent group used in adhesive layer
(B) ingredient included into object.
Furthermore as performance leakproof photosensitiveness mechanism, as described below.Also that is, when the adhesion of adhesive layer is polarizer,
Particularly when using constitutive requirements of the unhydrided aromatic series tackifier with positive birefringence as adhesive agent, stick together
Oxidant layer is deformed with the contraction of polarizer, and distortion optically occurs.Wherein, using the hydrogenation without positive birefringence
During constitutive requirements of (B) ingredient of Petropols as adhesive agent, even temporarily using unhydrided aromatic series tackifier, light
Distortion on is repressed as a result, performance leakproof photosensitiveness.
It is 1.4. flexible
Moreover, the tackness vapor barrier performance laminate of this embodiment aspect has good pliability.This embodiment aspect
Tackness vapor barrier performance laminate pliability, be mainly due to form adhesive agent used in adhesive layer
(C) ingredient that constituent is included.
The tackness vapor barrier performance laminate of this embodiment aspect has good pliability, thereby, this embodiment aspect
Tackness vapor barrier performance laminate can be suitble to be used in the purposes of needs flexibility, such as the image of bending shows and sets
Standby, foldable display device.
The good pliability of the tackness vapor barrier performance laminate of this embodiment aspect, can be by being contained in the lamination
The storage modulus of elasticity of the adhesive layer of body and provide, more specifically, can by make 25 DEG C of storage modulus of elasticity for 0.5 ×
105More than Pa 2.0 × 106Below Pa and provide.In the present invention, the storage modulus of elasticity of adhesive layer can be by commercially available rheology
Instrument measures.
1.5. wet-heat resisting albefaction
The adhesive layer of this embodiment aspect can block oozing from the vapor of the end face of the adhesive layer due to hydrophobicity height
Thoroughly, therefore the infiltration of the vapor from transverse direction (i.e. perpendicularly to the direction of the end face of adhesive layer) can be prevented.Moreover, this implementation
The adhesive layer of aspect is not easy to moisture absorption because of hydrophobicity height under high temperature/high humidity, can inhibit the albefaction of adhesive layer.
1.6. other characteristics
The tackness vapor barrier performance laminate of this embodiment aspect, by including by comprising (A) ingredient, (B) ingredient and
(C) the transparent high adhesive layer that the adhesive composition of ingredient is formed, can have the good transparency.It is more specific and
Speech, the tackness vapor barrier performance laminate of this embodiment aspect, full light transmittance, using in JIS K7361 methods as 85%
It is preferable above, more than 87% is more preferably.
1.7. adhesive composition
The adhesive layer of the tackness vapor barrier performance laminate of this embodiment aspect is contained in, it can be by will be aftermentioned glutinous
Agent constituent to be directly coated at the surface of base material 1 or base material 11 and formed, it also can be glutinous in fissility film by will be formed in
The surface that oxidant layer 2 is needed on base material 1 or base material 11, adhesive layer 2 is formed in the surface of base material 1 or base material 11.In base material or
The surface of stripping film after being coated with the adhesive composition, by drying, can obtain adhesive layer.The adhesive agent group of this embodiment aspect
Into object, (A) ingredient, (B) ingredient and (C) ingredient are included.
1.7.1. (A) ingredient
(A) hydrogenation (hydrogenated) block copolymer of ingredient has the polymerization from aromatic vinyl monomer
The thermoplastic elastomer (TPE) of the soft chain segment of the hard segment of object ingredient and component of polymer from conjugate diene monomer.
Wherein, more specifically, aromatic vinyl monomer is using styrene, α-methylstyrene as preferably (styrene is
More preferably), conjugation (conjugate) diene monomers are preferable using butadiene, isoprene.
The adhesive layer formed using the adhesive composition of this embodiment aspect comprising (A) ingredient, with including propylene
The adhesive layer that the adhesive composition of sour based polymer is formed is compared, the feature for having so-called vapor barrier performance good.
(A) ingredient can be ABA type hydrogenated block copolymer (three block object), AB type hydrogenated block copolymer (diblocks
Object) or such mixture.In the present invention, " A " of ABA type hydrogenated block copolymer and AB type hydrogenated block copolymers represents hard
Segment, " B " represent soft chain segment.As the concrete example of (A) ingredient, it can be mentioned, for example：Styrene-(ethylene-propylene)-styrene type
Block copolymer (SEPS) (the part hydride of styrene-isoprene-phenylethene type block copolymer (SIS)), styrene-
(butadiene-butylene)-styrene type block copolymer (SBBS) (s-B-S type block copolymer (SBS)
Part hydride), styrene-(Ethylene/Butylene)-styrene type block copolymer (SEBS) (styrene-butadiene-benzene second
The hydride of ene-type block copolymer (SBS)), styrene-(ethylene-propylene) type block copolymer (SEP) (styrene-isoamyl
The part hydride of diene type block copolymer (SI)), styrene-(Ethylene/Butylene) type block copolymer (SEB) (styrene-
The hydride of butadiene-type block copolymer (SB)) etc..Wherein, from the intermiscibility of (B) ingredient it is good from the viewpoint of, (A) into
Divide to be selected from styrene-(ethylene-propylene)-styrene type block copolymer (SEPS), styrene-(Ethylene/Butylene)-styrene
Type block copolymer (SEBS), styrene-(ethylene-propylene) type block copolymer (SEP), styrene-(Ethylene/Butylene) type are embedding
In section copolymer (SEB) and styrene-(isoprene-butadiene) type block copolymer (SEEPS) one kind or two or more is
Preferably.It is aforementioned also to may be used alone or in combination two or more use.
Moreover, (A) ingredient system is preferable using the mixture of three block object and diblock object, in the situation, mixed relative to this
Object is closed, the content of three block object is preferable (below 90 mass % of more than 30 mass % with below 95 mass % of more than 20 mass %
For more preferably), relative to the mixture, the content of diblock object is preferable (10 mass % with below 80 mass % of more than 5 mass %
More than below 70 mass % for more preferably).
In the present invention, so-called " having intermiscibility (compatible) " or " mixing (compatibilizing) " refers to not
The mixture of same two kinds of ingredients mixing gained, can not visually confirm muddy or phase separation.
For example, whether (B) ingredient mixes with (C) ingredient, it is that (B) ingredient is used to be assessed with (C) ingredient.
More specifically, when can not be to be visually observed in (B) ingredient and (C) ingredient are mixed institute using solvent depending on required
When the mixture obtained generates muddy or the phase containing (B) ingredient and the phase containing (C) ingredient phase separation, (B) ingredient and (C)
Ingredient is mixes；On the other hand, when being visually observed above-mentioned muddiness or phase separation, (B) ingredient is not phase with (C) ingredient
It is molten.
As (A) ingredient, commercially available hydrogenated block copolymer can be used, such as：The SEPTON1001 of SEP types and 1020,
The SEPTON8004 of the SEPTON2002 of SEPS types, 2004,2005,2006,2007,2063 and 2104, SEBS type, 8006,
8007th, 8076 and 8104 (above-mentioned SEPTON series is all Kuraray corporations)；TUFTEC H1221 of SEBS types,
H1662, H1052, H1053, H1041, H1051, H1517, H1043, H1272 and N504, TUFTEC P1500 of SBBS types,
P2000 and JT83X (above-mentioned TUFTEC series is all Asahi Kasei Corporation's system) etc..
From the viewpoint of the adhesive composition heat resistance for assigning this embodiment aspect, the hard segment of (A) ingredient (such as benzene
Ethylene) containing ratio with below 70 mass % of more than 5 mass % be it is preferable, below 60 mass % of more than 10 mass % for more preferably,
Below 40 mass % of more than 10 mass % again more preferably.When (A) ingredient hard segment containing ratio not up to 5 mass % when, heat resistance
Difference, on the other hand, when more than 70 mass %, adhesive layer can become too hard, and have the feelings being deteriorated with the adaptation of adhesion
Condition.
Moreover, from the intermiscibility of (C) ingredient it is good from the viewpoint of, form (A) ingredient conjugate diene monomer polymerization
The hydrogenation ratio (hydrogenating rate) (being also referred to simply as below " hydrogenation ratio ") of double bond contained by object ingredient be with more than 90% it is preferable,
More than 95% for more preferably (although also, hydrogenation ratio is preferably 100%, only residual traces (such as less than more than 0.001% 0.1%)
Double bond it is also harmless).
Also that is, in the present invention, the hydrogenation ratio of the double bond contained by the component of polymer of so-called conjugate diene monomer refers to altogether
In double bond contained by the component of polymer of conjugated diene monomer, the ratio of saturation by hydrogenation.
Wherein, whether (C) ingredient mixes with forming the soft chain segment of (A) ingredient, is using the soft chain segment for being equivalent to (A) ingredient
Ingredient and (C) ingredient, also that is, being assessed using by the polymer synthesized by conjugate diene monomer with (C) ingredient.
More specifically, when can not be to be visually observed in will be only as the polymer synthesized by conjugate diene monomer and (C)
Ingredient, which regards, generates muddy or phase containing the polymer with containing (C) ingredient in the required mixture using solvent mixing gained
Mutually generation phase separation when, (C) ingredient system is with forming the soft chain segment of (A) ingredient to mix, another aspect, when to be visually observed
During above-mentioned muddy or phase separation, (C) ingredient is immiscible with the soft chain segment for forming (A) ingredient.Furthermore about aftermentioned (C) into
Point mix with the soft chain segment of composition (A) ingredient, can also same way assessed.
For the point that the flexibility of adhesive layer appropriateness can be assigned, (A) of the adhesive composition of this embodiment aspect into
Point weight average molecular weight with less than more than 10,000 30 ten thousand (be more preferably more than 50,000 30 ten thousand hereinafter, being more preferably more than 50,000 25 ten thousand again
It is below) preferable.Moreover, when (A) ingredient is the mixture of above-mentioned three block object and diblock object, the weight average of (A) ingredient
Molecular weight refers to the weight average molecular weight of the mixture.
1.7.2. (B) ingredient
(B) ingredient is the hydrogen that bromine valency is below 10g/100g and softening point (softening point) is 100 DEG C or more
Fossil oleoresin.(B) ingredient is preferable not have positive birefringence.The adhesive composition of this embodiment aspect, be by
(B) ingredient comprising hydrogenated petroleum resin assigns adhesive layer vapor barrier performance that the adhesive composition formed and suitable
The hardness of degree, and durability, weatherability, heat resistance, leakproof photosensitiveness and the adhesion of the adhesive layer can be improved.(B) ingredient
Bromine valency is to represent the index of hydrogenation ratio, and the bromine valency of usual (B) ingredient is smaller, represents that the hydrogenation ratio of (B) ingredient is higher, by raising
(B) hydrogenation ratio of ingredient can improve the intermiscibility of weatherability and (A) ingredient and (C) ingredient.More specifically, (B) ingredient
Bromine valency is that below 8g/100g is preferable.Furthermore the bromine valency of (B) ingredient, such as can be measured according to JIS K 26 05, (B) ingredient
Softening point, such as can be measured according to JIS K 22 07.
(B) ingredient can have the property to mix with the soft chain segment and (C) ingredient for forming (A) ingredient.Thereby, institute can be improved
The transparency of the adhesive layer obtained.
(B) ingredient may be, for example, aromatic copolyester collaboration hydrogenated petroleum resin.Aromatic copolyester collaboration non-hydrogenated petroleum tree
Fat can be the hydride for the Petropols that such as aromatic copolyester closes object.As (B) ingredient, from good intermiscibility and stick together
Property from the viewpoint of, it is preferable with 10, less than 000 that weight average molecular weight, which is, with more than 500 5, less than 000 for more preferably.
As may more specifically used as the hydrogenated petroleum resin of (B) ingredient, such as, it can be mentioned, for example：It is commercially available
Bicyclopentadiene/aromatic copolyester collaboration hydrogenated petroleum resin Aimabu P-140 (the emerging production stocks of 140 DEG C of softening point, light extraction
Part corporation), Aimabu P-125 (125 DEG C of softening point, light extraction Xing Chan joint-stock companies), Aimabu P-100 (softening points 100
DEG C, light extraction Xing Chan joint-stock companies), Aimabu S-110 (110 DEG C of softening point, light extraction Xing Chan joint-stock companies), Aimabu S-
100 (100 DEG C of softening point, light extraction Xing Chan joint-stock companies), alicyclic saturated hydrocarbon resin Arkon M135 (135 DEG C of softening point,
Arakawa Chemical Industries joint-stock company), Arkon M115 (115 DEG C of softening point, Arakawa Chemical Industries joint-stock company), Arkon
M100 (100 DEG C of softening point, Arakawa Chemical Industries joint-stock company), Arkon P140 (140 DEG C of softening point, Arakawa Chemical Industries
Joint-stock company), Arkon P115 (115 DEG C of softening point, Arakawa Chemical Industries joint-stock company), Arkon P100 (softening points
100 DEG C, Arakawa Chemical Industries joint-stock company).It is aforementioned to can be used alone or combine two or more use as (B) ingredient.
From the viewpoint of the durability and adhesion for the adhesive composition that can improve this embodiment aspect, (B) ingredient
Softening point can be 100 DEG C or more, with 110 DEG C or more for preferably, more than 120 DEG C for more preferably.
Moreover, from the adjustable intermiscibility with (A) ingredient, from the viewpoint of inhibiting time dependent performance change, relative to (A)
100 mass parts of ingredient, the content of (B) ingredient with more than 10 mass parts 500 it is below mass part be it is preferable, more than 20 mass parts be compared with
Good (being, for example, more than 50 mass parts, also can be more than 50 mass parts), it is on the other hand, below mass part for more preferably with 300.
1.7.3. (C) ingredient
(C) ingredient is with being liquid and number under the room temperature (23 DEG C) of property that mixes of soft chain segment with forming (A) ingredient
Measure the resin that average molecular weight is less than 50,000.Furthermore in so-called " liquid " of the invention, also including sticky viscoelasticity
(viscoelastic) liquid of liquid and other low-viscosities.
The adhesive composition of this embodiment aspect by comprising (C) ingredient, assigns what is formed by the adhesive composition
The flexibility of adhesive layer appropriateness can be particularly improved for there is the segment difference tracing ability of the adhesion of concave-convex, segment difference (also to have and only claim
For " segment difference tracing ability ").Moreover, because (C) ingredient mixes with the soft chain segment and (B) ingredient for forming (A) ingredient, therefore institute can be improved
The transparency of the adhesive layer obtained.
(C) ingredient may be, for example, comprising polybutene based compound, polyisobutene based compound, polyisoprene system chemical combination
The softening agent of the aliphatic hydrocarbons such as object.As the usable softening agent as (C) ingredient, commercially available softening agent also can be used, such as：
As polybutene based compound, polyisoprene based compound, Nisseki Polybutene LV-7, LV-50, LV- can be used
100th, HV-15, HV-35, HV-50, HV-100, HV-300, HV-1900 and SV-7000 (are all JX Kuang stones energy company
System), Tetrax 3T, 4T, 5T and 6T, Himol 4H, 5H, 5.5H and 6H (being all JX Kuang stones energy company system)；As poly-
Kurapuren LIR-290 (Kuraray corporations) etc. can be used in isoprene compound.As (C) ingredient, it is aforementioned can
It is used alone or combines two or more use.
From the adhesive composition for using this embodiment aspect, the viewpoint that can obtain segment difference tracing ability more preferably adhesive layer is come
It sees, it with 10, less than 000 is preferable that the number average molecular weight of (C) ingredient, which is,.Moreover, the number average molecular weight of (C) ingredient is led to
It is often more than 150.
Moreover, from the adjustable intermiscibility with (A) ingredient, from the viewpoint of inhibiting time dependent performance change, relative to (A)
100 mass parts of ingredient, the content of (C) ingredient be with more than 20 mass parts 500 it is below mass part be it is preferable, more than 50 mass parts be
Preferably；On the other hand, it is below mass part for more preferably with 300.Furthermore relative to 100 mass parts of (A) ingredient, (B) ingredient with
(C) total content of ingredient be with more than 50 mass parts 1,000 it is below mass part be preferable, more than 80 mass parts 700 mass parts
Below for more preferably, more than 100 mass parts 600 is below mass part and more preferably.Furthermore in the adhesive composition of this embodiment aspect,
Relative to the adhesive composition generally speaking, (A) ingredient, (B) ingredient and (C) ingredient total content be with 60 mass % with
Upper below 100 mass % is preferable.
1.7.4. other compositions
The adhesive composition of this embodiment aspect, also may include (A) ingredient, (B) ingredient and (C) ingredient and (A) into
Divide, the other compositions other than (B) ingredient and (C) ingredient.As other compositions, such as it also may include antioxidant, silane coupling
1 kind in the solvent mistures such as the additives such as agent, book clay mineral, rosin series solvent misture, terpenic series solvent misture and solvent
Or two or more.As antioxidant, it can be mentioned, for example：BHT (molecular weight 220), ADK STAB AO-330 (molecular weight 775)
The phenolic antioxidants such as (ADEKA systems), IRGANOX1076 (molecular weight 531) (BASF AG's system).It, can as silane coupling agent
It enumerates for example：Vinyltrimethoxysilane, vinyltriethoxysilane and methacryloxypropyl trimethoxy silicon
The silicon compound containing polymerism unsaturated group such as alkane；3- glycidoxypropyltrime,hoxysilanes, 3- glycidoxies third
Ylmethyl dimethoxysilane and 2- (3,4- expoxycyclohexyls) ethyl trimethoxy silane etc. have the silicon of epoxy group construction
Compound；3- aminocarbonyl propyl trimethoxy silanes, N- (2- amidos ethyl) 3- aminocarbonyl propyl trimethoxy silanes and N- (2- amidos
Ethyl) silicon compound containing amido such as -3- aminocarbonyl propyl methyl dimethoxysilanes；And 3- r-chloropropyl trimethoxyl silicon
Alkane；Oligomer type silane coupling agent etc..As book clay mineral, it can be mentioned, for example：Montmorillonite (smectite) (such as
The lipophilies montmorillonite such as Lucentite SAN316, SAN, STN, SPN (Co-op Chemical corporations)).These can be independent
Use or combine two or more use.
1.8. purposes
The tackness vapor barrier performance laminate of this embodiment aspect, can be suitble to be used in the use for requiring vapor barrier performance
On the way.For example, the tackness vapor barrier performance laminate of this embodiment aspect, it can be used and show and set in images such as organic el devices
Solar cell standby, that there is organic film and the purposes that needs water proofing property etc..
1.9. acid value
Furthermore from the viewpoint of the corrosion that can prevent adhesion, (A) of the adhesive composition of this embodiment aspect into
Point, (B) ingredient and (C) ingredient, acid value system respectively is preferable with less than 1, furthermore, the adhesive composition of this embodiment aspect
Acid value system is preferable with less than 1.
1.10. function and effect
The tackness vapor barrier performance laminate of this embodiment aspect, by including by comprising (A) ingredient, (B) ingredient and
(C) adhesive layer obtained by the adhesive composition of ingredient, and with good vapor barrier performance.
Moreover, the tackness vapor barrier performance laminate of this embodiment aspect, because in when that obtains aforementioned adhesive layer institute
(B) ingredient in the aforementioned adhesive composition used, and with good durability (particularly high temperature and/or high humidity environment
Durability under inferior harsh environment), leakproof photosensitiveness and tackness, and because before used when obtaining aforementioned adhesive layer
(C) ingredient in adhesive composition is stated, and with good flexibility and pliability.Moreover, because of flexibility and pliability,
And be that segment difference tracing ability is good, therefore when member of formation is bonded each other, even if there is bumps, segment difference in fitting part, also may be used
The bumps, segment difference are filled to tight, and can be positively bonded this composition component each other.Moreover, because of good flexibility,
It can be suitble to the fitting for the member of formation being used in display device that is foldable or can batching.
Furthermore the tackness vapor barrier performance laminate of this embodiment aspect has the good transparency and damp and hot albefaction
Property.
In addition, used aforementioned adhesive composition when aforementioned adhesive layer is obtained, can by make (B) ingredient with
(C) ingredient mixes, and improves the transparency of the adhesive layer of gained.Furthermore aforementioned adhesive composition is by comprising softening point
100 DEG C or more (B) ingredient, can improving durability, (heat resistance, more specifically high temperature and/or high humidity environment are inferior harsh
Durability under environment), and by comprising (C) ingredient, flexibility and segment difference tracing ability can be improved.
More specifically, it can obtain simultaneously because of the heat resistance and adhesion of the ingredient high by softening point of (B) ingredient
Raising and by bromine valency be below 10g/100g leakproof photosensitiveness raising and because (C) ingredient by flexibility
And the raising of segment difference tracing ability, and be to mix with (C) ingredient by (B) ingredient, it can't generate muddiness in adhesive layer.
Furthermore the display device of the tackness vapor barrier performance laminate comprising this embodiment aspect is (such as organic
EL devices) and solar cell, adhesion is attached to the adhesion of appropriateness, there is good durability.
2. adhesive layer (pressure-sensitive adhesive sheet)
The adhesive layer (pressure-sensitive adhesive sheet) of the embodiment aspect of the present invention, by including (A) ingredient, (B) ingredient and (C) ingredient
The adhesive composition of above-mentioned embodiment aspect and obtain.
In the adhesive layer of this embodiment aspect, if during the generally 100 mass % of the adhesive layer, (A) ingredient, (B) into
Divide and total content of (C) ingredient is preferably more than 60 mass % below 100 mass %.
The adhesive layer of this embodiment aspect, film thickness are less than 5 μm or more 300 μm (preferably less than 5 μm or more 200 μm),
And the film thickness of the adhesive layer be 50 μm when, vapor transmission rate does not reach in 0208,40 DEG C × 90%RH of JIS Z (teacup method)
30g/m2Day (does not reach 25g/m preferably2Day does not reach 22g/m more preferably2·day)。
The adhesive layer of this embodiment aspect can be that the adhesive composition of above-mentioned embodiment aspect directly is coated on base material
1 or the surface of base material 11, also but the adhesive layer 2 that will be formed in fissility film is needed on the surface of base material 11, thereby in
The surface of base material 11 forms adhesive layer.More specifically, by gravure coater, wire rod (Meyer bar) coating machine, gas
The adhesive composition of this embodiment aspect is coated on base material or fissility film by knife coating machine, roll-coater etc., and by normal
Temperature or heating dry the adhesive composition being coated with, and can make the adhesive layer of this embodiment aspect.
3. display device
The display device of another aspect of the present invention includes the use of the adhesive composition of above-mentioned embodiment aspect
The adhesive layer formed.As the display device of this embodiment aspect, it can be mentioned, for example organic el device (such as Fig. 3 institutes
The laminate 30 shown), liquid crystal display.
4. embodiment
Hereinafter, it is to illustrate the present invention according to following embodiments, but the present invention is not limited to embodiments.
4.1. the modulation of adhesive composition
In having cooling tube, nitrogen ingress pipe, thermometer, instilling in the reaction vessel of funnel and agitating device, it is put into table 1
Described in (A) ingredient or compare ingredient, (B) ingredient, (C) ingredient or compare 150 parts by weight of ingredient and toluene, stirred at 40 DEG C
It mixes 5 hours, modulates the adhesive composition of embodiment 1 to 10 and comparative example 1 to 6 respectively.
4.2. the making of assessment pressure-sensitive adhesive sheet (adhesive layer)
After deaeration processing, in release-treated polyethylene terephthalate film, reality is respectively coated using scraper
The adhesive composition of example 1 to 10 and comparative example 1 to 6 is applied, it is 3 minutes dry at 90 DEG C, form the film of 50 μm of dry film thickness.
In the opposite face in the attaching face of the aforementioned polyethylene terephthalate film of film, then it is bonded release-treated poly- terephthaldehyde
Sour second diester film obtains clipping the adhesive layer of 50 μm of thickness with 2 release-treated polyethylene terephthalate films
Assessment pressure-sensitive adhesive sheet.
4.3. the appraisal procedure of adhesive layer
4.3.1. vapor transmission rate
The assessment of vapor transmission rate is carried out according to JIS Z0208.Also that is, assessment by mono- section of gained of above-mentioned 4.2.
It is removed with the release-treated polyethylene terephthalate film on the two sides of pressure-sensitive adhesive sheet, and after being bonded nonwoven fabric, by nonwoven fabric
The assessment clipped is covered in pressure-sensitive adhesive sheet on the moisture vapor transmission cup (internal diameter 60mm) for the calcium chloride for being put into about 10g, and seals surrounding.So
Afterwards, it in the environment of moisture vapor transmission cup being rested on 40 DEG C × 90%RH, is measured.
4.3.2. full light transmittance
The assessment of full light transmittance is to gather the unilateral of the assessment pressure-sensitive adhesive sheet of above-mentioned mono- section of gained of 4.2. to benzene two
Formic acid second diester film is removed, and fits in the glass plate of thickness 1mm, then remove the polyethylene terephthalate film of opposite side, root
According to JIS K7361 methods, carried out under 23 DEG C × 50%RH environment.
4.3.3. weatherability (xanthochromia)
By the assessment pressure-sensitive adhesive sheet of mono- section of gained of above-mentioned 4.2., using xenon lamp atmospheric exposure test instrument, with 60W/m2Irradiation
Intensity illumination 600 hours, the color of the adhesive layer of 50 μm front and rear of thickness of comparative measurements test under 23 DEG C × 50%RH environment
Phase.When Δ b* is less than 2.0, it is determined as that weatherability is good, when Δ b* is more than 2.0, is determined as that weatherability is poor.
4.3.4. wet-heat resisting albefaction
The unilateral polyethylene terephthalate film of the assessment pressure-sensitive adhesive sheet of above-mentioned mono- section of gained of 4.2. is removed, fitting
The polyethylene terephthalate film that 100 μm of thickness is made the testing piece of 50mm square.Another release-treated is gathered to benzene
Dioctyl phthalate second diester film is removed, and testing piece fitted in glass, carry out autoclave (autoclave) handle (50 DEG C,
5atm, 20 minutes) after, haze meter (color technical research institute corporation in model " HM-150 ", village) is used to measure laminate
Mist degree (haze initial).Then, sample is put into the drying machine 24 hours of 85 DEG C × 85%RH, under 23 DEG C × 50%RH environment
It takes out, after placing 1 hour, measures the mist degree (mist degree after damp and hot) of laminate again.If mist degree-haze initial is Δ mist after damp and hot
Degree when Δ mist degree is less than 1.0, is determined as that wet-heat resisting albefaction is good, when Δ mist degree is more than 1.0, is determined as that wet-heat resisting is white
The property changed is poor.
4.3.5. segment difference tracing ability
To the poly- to benzene two of 100 μm of film thickness be transferred to pressure-sensitive adhesive sheet with the assessment obtained by the method for above-mentioned mono- section of record of 4.2.
Formic acid second diester film, cuts into 50mm × 50mm, obtains assessment testing piece.Then, 25 μ of film thickness that 15mm × 15mm will be cut into
The polyethylene terephthalate film of m is positioned on glass plate, in the polyethylene terephthalate film (15mm on glass plate
× 15mm) all surfaces covering adhesive layer mode, attach testing piece (50mm × 50mm), carry out autoclave processing
It after (50 DEG C, 5atm, 20 minutes), is placed 1 hour under room temperature, by the appearance of visual observation segment difference part.
Based on the above, with following assessment benchmarking exercise by the segment difference of the adhesive layer obtained by adhesive composition
Tracing ability.
(assessment)
○：With visual, gap, bubble can not be confirmed in the segment difference part of attaching
×：With visual, gap, bubble have been confirmed in the segment difference part of attaching
4.3.6. durability
The unilateral polyethylene terephthalate film of the assessment pressure-sensitive adhesive sheet of above-mentioned mono- section of gained of 4.2. is removed, fitting
The polyethylene terephthalate film that 100 μm of thickness is made the testing piece of 50mm square.Another release-treated is gathered to benzene
Dioctyl phthalate second diester film is removed, and testing piece fitted in glass, carries out autoclave processing (50 DEG C, 5atm, 20 minutes)
Afterwards, sample is put into the drying machine 24 hours of 85 DEG C × 85%RH, after being taken out under 23 DEG C × 50%RH environment, assesses adhesive agent
Whether layer has foaming, floats/remove from glass.
(assessment)
○：With visual, foaming can not be confirmed, floats/removes
×：With visual, foaming is confirmed, has floated/removes
4.4. the appraisal procedure of laminate
4.4.1. vapor transmission rate
The assessment of vapor transmission rate is to gather the unilateral of the assessment pressure-sensitive adhesive sheet of above-mentioned mono- section of gained of 4.2. to benzene two
Formic acid second diester film is removed, and fits in base material (the high barrier performance film using the PET resin of 50 μm of thickness as matrix：Vapor transmission
Rate：1g/m is not reached2Day), according to JIS Z0208 (version in 1976), carried out in the environment of 40 DEG C × 90%RH.
4.4.2. adhesion
The unilateral polyethylene terephthalate film of the assessment pressure-sensitive adhesive sheet of above-mentioned mono- section of gained of 4.2. is removed, fitting
In using the PET resin of 50 μm of thickness as the base material (above-mentioned high barrier performance film) of matrix, width 25mm is cut into, is made testing piece.
Above-mentioned testing piece and the polyethylene terephthalate film in the face of base material opposite side are removed, using the roller of 2kg,
The adhesive agent coated face of exposing is crimped on glass.It attaches after twenty minutes, pressure-sensitive adhesive sheet (23 DEG C, peel angle is removed from glass plate
180 °, peeling rate 300m/ minutes), measure the adhesion (starting) under 23 DEG C × 50%RH environment.
4.4.3. full light transmittance
The unilateral polyethylene terephthalate film of the assessment pressure-sensitive adhesive sheet of above-mentioned mono- section of gained of 4.2. is removed, fitting
It is the base material (above-mentioned high barrier performance film) of matrix, then remove opposite side poly terephthalic acid second two in 50 μm of PET resin of thickness
Ester film, is made testing piece.The assessment of full light transmittance, is according to JIS K7361 methods (version in 1997), in 23 DEG C × 50%RH
It is carried out under environment.
4.4.4. appearance of film
Visually to observe the appearance of the adhesive layer in laminate (film).
[table 1]
Furthermore the meaning of the abbreviation in table 1 is as follows.
SEPS hydrorubbers based polymer -1：Mixture (the styrene containing ratio of SEPS50 mass % and SEP50 mass %
15%th, weight average molecular weight 130,000, more than 90% hydrogenation ratio)
SEPS hydrorubbers based polymer -2：Mixture (the styrene containing ratio of SEPS30 mass % and SEB70 mass %
30%th, weight average molecular weight 100,000, more than 90% hydrogenation ratio)
SEEPS hydrorubbers based polymer -1：Styrene, isoprene, butadiene copolymer (styrene containing ratio
13%th, weight average molecular weight 13 is ten thousand)
SIS based polymers：Styrene-isoprene-phenylethene type block copolymer (non-hydride)
Aimabu P-140：Aromatic copolyester collaboration hydrogenated petroleum resin (the light extraction Xing Chan joint-stock companies of 140 DEG C of softening point
System, weight average molecular weight：900th, bromine valency：2g/100g)
Aimabu S-110：Aromatic copolyester collaboration hydrogenated petroleum resin (the light extraction Xing Chan joint-stock companies of 110 DEG C of softening point
System, weight average molecular weight：760th, bromine valency：6g/100g)
LV-100：Polybutene (number average molecular weight=500) (JX Kuang Shi energy joint-stock company)
HV-300：Polybutene (number average molecular weight=1,400) (JX Kuang Shi energy joint-stock company)
TETRAX3T：Polyisobutene (number average molecular weight：49,000) (JX Kuang Shi energy joint-stock company)
OPPANOL50SF：Polyisobutylene resin (BASF AG's system, number average molecular weight：68,000th, weight average point
Son amount：340,000)
FMR-0150：The aromatic system that 145 DEG C of softening point assigns glutinous resin (non-hydride) (Mitsui Chemicals, Inc.'s system, weight
Average molecular weight：2,040)
ADK STAB AO-330：Phenolic antioxidant (ADEKA joint-stock companies)
Base material：100 μm of film thickness, full light transmittance 90.0%, vapor transmission rate 4.8 × 10-4g/m2Day's is transparent
Barrier performance film
4.5. assessment result
From table 1 as a result, it can be seen that the laminate of the embodiment 1 to 10 of this case because aforementioned adhesive layer be by comprising
(A) hydrogenated block copolymer, (B) ingredient and (C) ingredient adhesive composition and obtain, therefore adhesive layer with good water steam
Gas barrier performance, and durability, weatherability, the transparency, adhesion, segment difference tracing ability and wet-heat resisting albefaction are good.Moreover, this case
The laminate of embodiment 1 to 10, leakproof photosensitiveness, flexibility and good flexibility.
Moreover, the laminate of the embodiment 10 of this case, is by containing the unhydrided aromatic series with positive birefringence
Glutinous resin is assigned to obtain as the adhesive composition of (C) ingredient.The laminate of the embodiment 10 of this case, because not had by containing
The adhesive composition of (B) ingredient of positive birefringence and obtain, even if therefore the adhesive composition contain for unhydrided virtue
(C) ingredient of glutinous resin is assigned by fragrant race, can still inhibit distortion optically as the laminate obtained by adhesive composition, as a result have
Leakproof photosensitiveness.
In contrast, it as shown in table 1, it can be seen that the constituent of this case comparative example 1 does not include (C) ingredient, therefore uses and is somebody's turn to do
Adhesive layer segment difference tracing ability obtained by constituent is poor.
Moreover, it can be seen that the constituent system of comparative example 2 does not include (B) ingredient, therefore as the adhesive agent obtained by the constituent
Layer, durability and sticks together force difference.Moreover, it can be seen that as the adhesive layer obtained by the constituent of comparative example 3, vapor barrier performance
Difference.Moreover, it can be seen that the constituent of comparative example 4, the aromatic system solvent misture (non-hydrogen of the intermiscibility difference with (A) ingredient is included
Compound) replace (B) ingredient, therefore poor as the adhesive layer transparency obtained by the constituent.Moreover, it can be seen that comparative example 5
Constituent replaces (C) ingredient, therefore as glutinous obtained by the constituent comprising number average molecular weight is more than 50,000 resin
It oxidant layer segment difference tracing ability and sticks together force difference.Moreover, it can be seen that the constituent of comparative example 6 includes unhydrided block polymer
(SIS polymer) replaces (A) ingredient, therefore poor as the adhesive layer weatherability obtained by the constituent.
Above-mentioned tackness vapor barrier performance laminate can need vapor barrier performance, durability (particularly high temperature
And/or the durability under the inferior harsh environment of high humidity environment), adaptation, weatherability, flexibility, segment difference tracing ability, the transparency,
It is used under the environment of wet-heat resisting albefaction and pliability.
Claims (7)
1. a kind of tackness vapor barrier performance laminate, which is characterized in that including：It base material and is set to glutinous in aforementioned substrates
Oxidant layer；
Wherein, aforementioned adhesive layer is obtained by the adhesive composition comprising (A) ingredient, (B) ingredient and (C) ingredient；
Belong to the hydrogenated block copolymer of aforementioned (A) ingredient, there is the hard of the component of polymer from aromatic vinyl monomer
The soft chain segment of segment and component of polymer from conjugate diene monomer；
Aforementioned (B) ingredient is the hydrogenated petroleum resin that bromine valency is below 10g/100g and softening point is 100 DEG C or more；
Aforementioned (C) ingredient be with mix with aforementioned soft chain segment property, room temperature (23 DEG C) when be liquid and quantity mean molecule
Measure the resin for less than 50,000；
The film thickness of aforementioned adhesive layer is 5 μm or more 300 μm hereinafter, and the adhesive agent of the film thickness of adhesive layer when being 50 μm
The vapor transmission rate of layer does not reach 30g/m in 0208,40 DEG C × 90%RH of JIS Z2·day。
2. tackness vapor barrier performance laminate according to claim 1, which is characterized in that vapor transmission rate in
0208,40 DEG C × 90%RH of JIS Z do not reach 25g/m2·day。
3. tackness vapor barrier performance laminate according to claim 1 or 2, which is characterized in that form aforementioned (A)
The hydrogenation ratio for the double bond that the component of polymer of the conjugate diene monomer of hydrogenated block copolymer is included is more than 90%.
4. tackness vapor barrier performance laminate according to any one of claim 1 to 3, which is characterized in that aforementioned
(B) ingredient is aromatic copolyester collaboration hydrogenated petroleum resin.
5. tackness vapor barrier performance laminate according to any one of claim 1 to 4, which is characterized in that aforementioned
Adhesive composition is included relative to aforementioned below mass part for more than 10 mass parts 500 of aforementioned (A) ingredient of 100 mass parts
(B) ingredient and aforementioned (A) ingredient relative to 100 mass parts are more than 20 mass parts 500 aforementioned (C) below mass part
Ingredient.
6. tackness vapor barrier performance laminate according to any one of claim 1 to 5, which is characterized in that aforementioned
The vapor transmission rate of base material does not reach 30g/m in 0208,40 DEG C × 90%RH of JIS Z2·day。
7. a kind of display device, which is characterized in that including tackness vapor according to any one of claims 1 to 6
Barrier performance laminate.
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| JP2015-168039 | 2015-08-27 | ||
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| PCT/JP2016/074085 WO2017033824A1 (en) | 2015-08-27 | 2016-08-18 | Adhesive water vapor barrier laminate and image display device |
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| US10640277B2 (en) | 2017-06-01 | 2020-05-05 | Chef Pack, Llc | Packaging for a food item |
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| WO2014069398A1 (en) * | 2012-10-29 | 2014-05-08 | リンテック株式会社 | Adhesive agent composition and adhesive sheet |
| CN104428320A (en) * | 2012-06-08 | 2015-03-18 | 株式会社可乐丽 | Hydrogenated block copolymer and method for producing same |
| CN104797669A (en) * | 2012-11-30 | 2015-07-22 | 琳得科株式会社 | Adhesive agent composition, adhesive sheet, and electronic device |
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| CN103703093B (en) * | 2011-06-28 | 2016-06-15 | 琳得科株式会社 | A kind of tackiness composition and tackiness sheet |
| CN105051141B (en) * | 2013-02-28 | 2018-01-30 | 综研化学株式会社 | Optics adhesive composite, optics adhesive sheet, image display device and input/output unit |
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| WO2014069398A1 (en) * | 2012-10-29 | 2014-05-08 | リンテック株式会社 | Adhesive agent composition and adhesive sheet |
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| JPWO2017033824A1 (en) | 2018-06-14 |
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