WO2000070388A1 - Materiau pour lentilles oculaires et leur procede de fabrication - Google Patents
Materiau pour lentilles oculaires et leur procede de fabrication Download PDFInfo
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- WO2000070388A1 WO2000070388A1 PCT/JP2000/002939 JP0002939W WO0070388A1 WO 2000070388 A1 WO2000070388 A1 WO 2000070388A1 JP 0002939 W JP0002939 W JP 0002939W WO 0070388 A1 WO0070388 A1 WO 0070388A1
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- siloxane
- ophthalmic lens
- lens material
- polymer
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/04—Contact lenses for the eyes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/14—Macromolecular materials
- A61L27/18—Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F218/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid
- C08F218/02—Esters of monocarboxylic acids
- C08F218/04—Vinyl esters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/12—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
- C08F290/06—Polymers provided for in subclass C08G
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
- C08F290/06—Polymers provided for in subclass C08G
- C08F290/068—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/12—Hydrolysis
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/08—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds
- C08L51/085—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds on to polysiloxanes
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
- G02B1/041—Lenses
- G02B1/043—Contact lenses
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F218/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid
- C08F218/02—Esters of monocarboxylic acids
- C08F218/04—Vinyl esters
- C08F218/08—Vinyl acetate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F230/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal
- C08F230/04—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal containing a metal
- C08F230/08—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal containing a metal containing silicon
Definitions
- the present invention relates to an ophthalmic lens material and its manufacturing method. More specifically, not only are they resistant to lipid fouling, water wettability and oxygen permeability, but also to their flexibility, especially shape recovery, at the same time. Particularly, the present invention relates to an ophthalmic lens material which can be suitably used for a soft contact lens and a soft intraocular lens, and to a method for producing the same. Background art
- Japanese Patent Application Laid-Open No. 63-1663811 discloses a copolymer obtained by polymerizing siloxanyl (meth) acrylate and vinyl ester.
- Such contact lenses have been disclosed, and Japanese Patent Application Laid-Open No. 63-3101919 discloses siloxane oxide (meta) crelate, vinyl Is it a copolymer obtained by polymerizing ruster and vinyl (meta) acrylate and / or aryl (meta) acrylate?
- a further contact lens has been disclosed.
- these contact lenses have any Although it has high oxygen permeability and excellent stain resistance, it is hard to say that its polymerization component is too flexible.
- No. 4771 discloses that on average there is at least one polymerizable group (methyl) acrylate polymer, vinyl monomer, fatty acid vinyl ester and crosslinkable polymer.
- a hydrated contact lens made from the polymer of a monomer was disclosed.
- No. 5,080,633 discloses a polysiloxane prepomer, a bulk polyxanil xanylalkyl (meta) acrylate monomer and A silicone-containing hydrogel material formed from the polymerized product of a hydrophilic monomer has been disclosed.
- International Publication No. WO97 / 09169 discloses polymerizable silicon-containing compounds and polymerizable fluorine-containing compounds, An ophthalmic lens material has been disclosed in which an alkyl (meth) acrylate and a polymer obtained by solution polymerization of a crosslinkable compound are hydrated with a water-soluble organic solvent. It is.
- any contact lens and material may have only one or more of these properties, and may be an ophthalmic lens material. In particular, it does not have flexibility, which is one of the important properties required for a soft ophthalmic lens material, and particularly has shape recovery properties.
- the present invention has been made in view of the above prior art, It has a high oxygen permeability, and at the same time it has excellent wettability and resistance to lipid contamination, it has excellent flexibility and, in particular, excellent shape recovery.
- the purpose is to provide a lens material and an easy manufacturing method thereof. Disclosure of the invention
- the present invention is a.
- Siloxan macromonomer having two or more active unsaturated groups and having a number average molecular weight of 200 to 100,000
- An ophthalmic lens material comprising a siloxane-containing polymer obtained by polymerizing a polymerization component containing as an essential component,
- An ophthalmic lens material comprising a polymer obtained by subjecting a siloxane-containing polymer obtained by polymerizing a polymer component containing as an essential component to a saponification treatment, every day
- Siloxan macromonomer having two or more active unsaturated groups and having a number average molecular weight of 200 to 100,000
- a siloxane-containing polymer is prepared by polymerizing a polymerization component containing as an essential component, and then the siloxane-containing polymer is subjected to a saponification treatment.
- Method for producing the ophthalmic lens material BEST MODE FOR IMPLEMENTING THE INVENTION OF THE INVENTION
- the ophthalmic lens material of the present invention (hereinafter referred to as the ophthalmic lens material I) has two or more active unsaturated groups.
- Siloxane having a number average molecular weight of 200 to 100 000 (A) and a lower fatty acid vinyl ester (B) are essential components.
- a siloxane-containing polymer obtained by polymerizing the contained polymerization component.
- the u-siloxan macromonomer (A) mainly gives the ophthalmic lens material I the flexibility and mechanical strength represented by shape recovery properties. It is an ingredient.
- the active unsaturated group of the siloxane chromone monomer (A) is an active unsaturated group that can be subjected to radical polymerization, and For example, (meta) acryloyl group, vinyl group, aryl group, (meta) acryloyl soleoxy group, vinyl group rubber group, etc. .
- Acrylo is considered to provide good flexibility to the ophthalmic lens material I and to be excellent in copolymerizability with other polysynthetic components.
- Iloxy and vinyl groups are preferred, and acryloyloxy groups are particularly preferred.
- the number-average molecular weight of xanthone macromonomer (A) does not increase the hardness too much and gives the ophthalmic lens material I excellent flexibility. More than 2000, preferably more than 250, more preferably more than 300 o. In order to ensure that the ophthalmic lens material I itself becomes soft but does not have poor shape recovery properties, a siloxane mask must be used.
- the number average molecular weight of the Romanomer (A) is 100 000 or less, preferably 500 000 or less, and more preferably 100 000 or less. .
- the siloxane polymer monomer (A) may be, for example, U.S. Pat. No. 4,189,54. It is also possible to use a macromonomer in which an active unsaturated group has been added to the dialkylsiloxane described in the specification of Japanese Patent No. 6-316.
- Siloxane macromonomer usually has poor water wettability, and often has relatively poor mechanical strength by itself. Therefore, the siloxane moxa monomer (A) used in the present invention has a macro mouth monomer structure for the purpose of improving water wettability.
- the siloxane polymer (A) When the siloxane polymer (A) has the urethane group, it imparts suitable mechanical strength and excellent water wettability to the ophthalmic lens material I. You can do it.
- the ⁇ group In order to provide sufficient mechanical strength and water wettability, the ⁇ group must be an average of two or more siloxane groups in (A). Preferably, the average is 4 or more.
- the urethane group is used as a siloxane polymer monomer (A). Average 20 or less, preferably flat / JP00 / 02939
- the siloxane polymer (A) in order to obtain an ophthalmic lens material I having improved flexibility and, in particular, improved shape recovery, should be used.
- hydrophilicity is provided at both ends of the siloxane structure described in U.S. Pat. Nos. 4,495,364 and 5,807,944. It is also possible to use a macromonomer in which a sex site has been introduced.
- siloxane macromonomer (A) is preferably represented by the general formula (1-1):
- ⁇ 1 and ⁇ 2 are each independently an active unsaturated group carbon
- U 2 is a diurethan group that forms a ⁇ -ray bond with both adjacent A 1 and S 2 or S [ and S 2 ;
- U 3 is a diurethan group that forms a urethane bond with both adjacent S 2 and A 2 ,
- S 1 and S 2 are each independently the formula:
- R 1 and R 2 are each independently an alkylene group having 1 to 20 carbon atoms
- R 3 , R 4 R 5 , R 6 , R 7 and R 8 are each Even if it is independently substituted with a fluorine atom 00/02939 Good linear, branched or cyclic alkyl groups of 1 to 20 carbon atoms or formula: A 3 — U 4 — R i — O — R 2 — (formula A 3 is an active unsaturated group, an active unsaturated group having an alkylene group having 1 to 20 carbon atoms, or an alkylene glycol having 1 to 20 carbon atoms.
- U 4 is shows a U letter-down group which forms a neighboring Ri Oh cormorant a 3 Contact and R 1 and c 0.5 down bond
- R 2 is the X is 1 to: an integer of L500
- y is 0 or an integer of 1 to 149
- x + y is 1 to: 1500 Represents an integer)
- n 0 or an integer from 1 to 10]
- B 1 is an active unsaturated group having a urethane bond
- S 3 is a compound represented by the formula:
- R 1 and R 2 are each independently an alkylene group having 1 to 20 carbon atoms
- R 3 , R 4 , R 5 , R 6 , R 7 and R 8 are each A linear, branched or cyclic alkyl group having 1 to 20 carbon atoms, which may be independently substituted with a fluorine atom, or a formula: A 3 — U 4 — R 1 — 0 — R 2 —
- a 3 is an active unsaturated group, an active unsaturated group having an alkylene group having 1 to 20 carbon atoms, or an active unsaturated group having 1 to 20 carbon atoms.
- An active unsaturated group having 20 alkylene glycol groups, U 4 is adjacent CT / JP00 / 02939
- a macromonomer represented by is preferably used.
- the active unsaturated groups represented by A 1 and A 2 as described above, for example, ) Acryloyl group, vinyl group, aryl group, (meta) acryloyloxy group, vinylcarbamate group, etc. are available. Among these, the ophthalmic lens material I can be imparted with even more excellent flexibility, and is excellent in copolymerizability with other polymerization components. Liloyloxy and bier groups are preferred, and acrylyloxy groups are particularly preferred.
- the alkylene group or the alkylene glycol group may be the alkylene group or the alkylene glycol group. It is preferred that the carbon number be 1 to 20, especially 1 to 10.
- R 1 your And R 2 is preferably an alkylene group having 1 to 5 carbon atoms
- R 3 to R 8 are preferably an alkyl group having 1 to 5 carbon atoms.
- a 3 represents an active unsaturated group similar to the above examples.
- the active unsaturated group has an alkylene group or an alkylene glycol group.
- the alkylene group or the alkylene glycol group preferably has 1 to 20 carbon atoms, more preferably 1 to 10 carbon atoms.
- X is an integer from 1 to 500
- y is an integer from 0 or 1 to 499
- + is an integer from 1 to 500.
- n is preferably 0 or an integer of 1 to 5.
- Chromosomes are preferred, especially for formulas: Ho Crlg and Ho
- a represents an integer of 2,050), and is preferably a macromonomer represented by:
- the lower fatty acid vinyl ester (B) mainly gives shape recovery properties to the ophthalmic lens material I, and further becomes hydrophilic by the genification treatment when obtaining the ophthalmic lens material II described later. It is a component that imparts properties.
- a typical example of the lower fatty acid vinyl ester (B) is, for example, a compound represented by the general formula (II):
- R represents an alkyl group having 115 carbon atoms which may be substituted with a hydrogen atom or a halogen atom).
- Specific examples of such compounds include, for example, vinyl formate, vinyl acetate, vinyl propionate, vinyl butyrate, vinyl pivalate, vinyl versatate, rawau.
- Vinyl linoleate, vinyl stearate, monochloro vinyl acetate, monofluoro vinyl acetate, tricyclone Vinyl acetate, trifluoroacetate, etc. can be used, and these can be used alone or in combination of two or more. .
- vinyl acetate acetate is considered to have a great effect on shape recovery and imparting hydrophilicity.
- Vinyl vinyl propionate and vinyl valinate are preferred, and vinyl acetate is particularly preferred.
- the siloxane-containing polymer that constitutes the ophthalmic lens material I of the present invention is composed of the above-mentioned siloxane-macromonomer (A) and lower fatty acids. It is obtained by polymerizing a polymer component containing vinyl ester (B) as an essential component, but such a polymer component is hardly affected by this force. For example, a silicon-containing monomer (C) may be contained.
- the silicon-containing monomer (C) mainly imparts oxygen permeability to the ophthalmic lens material I, and further imparts flexibility and, in particular, shape recovery. It is preferably used because it is a component.
- gamma-containing monomer (C) include, for example, pentamethyldisiloxysanilmethyl (meta) acrylate, Trimethylsiloxymethylsilyl propyl (meta) atalylate, methylvis (trimethylsiloxy) syril Ripple (meta) create, tris (trimethyl lip), spill propyle (meta) create, mono [ Chill vis (trimethylsiloxy) siloxane] bis (trimethylsiloxy) silyl propyl (meta) acrylate, Tris [methyl bis (trimethylsiloxy) siloxy] silyl propyl (meta) accredit, trimethylsilyl Main Ji Le (meth) ⁇ click Re les over preparative, preparative Li main Ji Le Cyril profile (meta) Accelerate, methylvis (trimethylsilicone mouth) Silyl pill Sanitary methyl (meta) create, tetramethyl trisopro cyclite tanixi
- (Meta) Clear rate for example, tris (trimethylsilicone) Kisiriristyen, methyliris (trimethylirseki) Cylsilylene, dimethylsilylstyrene, trimethylsilylstyrene, tris (trimethylsiloxy) Loxysanil methylsilyl styrene, [methyl bis (trimethylsilicone mouth opening) siloxanil] dimethylsilyl styrene , Pentamethyl siloxane, styrene, heptamethyl trisiloxane, nonyl styrene, nonamethyl styrene Sanil Styrene, Pentadecamethyl Hep Evening Siroxanil Styrene, Hen Eicosamethylene Deca Siroxanil Len, heptacosamethyltridecylaniline styrene, hetriacontamethylenepencil, dekasiloxisanil
- silicon-containing monomers (C) the effect of simultaneously imparting high oxygen permeability and flexibility to the ophthalmic lens material I, and particularly to shape recovery, is more significant. From the point of view of large size, silicon-containing (meta) acrylates are preferred, and tris (trimethylsilicone mouth) silypropyl acrylates are preferred. Rate is particularly preferred.
- the polymerization components include siloxane moxa chromomer (A), lower fatty acid vinyl ester (B), and silicon.
- a fluorine-containing monomer (D) may be contained.
- the fluorine-containing monomer (D) is a component that mainly imparts oxygen permeability and flexibility to the ophthalmic lens material I, and at the same time, improves the resistance to lipid contamination. It is.
- fluorine-containing monomers (D) include, for example, 2,2,2—trifluoroethylylate (meta) acrylate, 2,2,3 , 3 — Tetrafluoropropyl (meta) clear, 2, 2, 3, 3 — 3 Tetrafluorate t — Pentyl (meta) clear 2,2,3,4,4,4-hexafluorobutyl (meta) acrylate, 2,2,3,4,4,4—hexafluorot Hexylile (methyl) acrylate, 2,3,4,5,5,5—hexafluoro-2,4-bis (trifluoromethyl) pentyl (metal ) Acrylate, 2,2,3,3,4,4,1-hexafluorobutyl (meta) acrylate, 2,2,2,2 ', 2', 2 ' — Hexafluoro Propyl (meta) acrylate, 2,2,3,3,3,4,4,4 — heptafluorobutyl (meta)
- H 2 C C-C-1 0-CH 3 ⁇ 4 -CH-CH -Rj
- oxygen permeability, flexibility, and lipid contamination resistance especially the effect of imparting flexibility to the ophthalmic lens material I is said to be great. For that reason, fluoroalkyl creates are preferred.
- R'i represents a perfluoroalkyl group having 3 to 15 carbon atoms, preferably 3 to 8 carbon atoms, and more preferably 4 to 6 carbon atoms). Fluoroalkyl acrylate having a hydroxyl group to be used is preferred.
- Siloxane chromonemer (A) and lower fat The amount of acid vinyl ester (B) and, if necessary, the silicon-containing monomer (C) used is sufficient for the ophthalmic lens material I. In order to provide mechanical strength and oxygen permeability, it is necessary to use a siloxane polymer.
- (A) and the ratio of the total amount of the monomer containing monomer (C) and the lower fatty acid vinyl ester (B) (total amount of (A) and (C) / (B) (Weight ratio)) (that is, when the silicon-containing monomer (C) is not used, (A) Z (B)) is preferably 30/70 or more, preferably In order to ensure that it is greater than or equal to 50 Z 50 and that the ophthalmic lens material I be provided with sufficient shape recovery and hydrophilicity, The ratio is preferably 90/10 or less, preferably 80 Z20 or less.
- the ratio of the siloxane macromonomer (A) to the silicon-containing monomer (C) (A) / (C) (weight ratio) is required to ensure that the ophthalmic lens material I has sufficient mechanical strength without deteriorating its shape recoverability.
- the HUBd ratio should be less than 90/10, preferably less than 80 Z20.
- W1 d d Siloxane macromonomer (A) and vinyl ester of lower fatty acid (B), and a gallium-containing monomer that can be used as needed C) and the amount of the fluorine-containing monomer (D) are determined by adding the siloxane polymer mouth monomer (A to the lower fatty acid vinyl ester (B) to the ophthalmic lens material I). ) And silicon-containing monomer-the effect of (C) should be fully exhibited To achieve this, the siloxane macromonomer (A), the lower fatty acid vinyl ester (B), and the silicon-containing monomer (C) ) And the ratio of the fluorine-containing monomer (D) ((A),
- the total amount Z (D) (weight ratio)) should be at least 20/80, preferably at least 40/60.
- the proportion is preferably less than 900, It is preferably less than 85/15.
- the above-mentioned polymer component may further contain, if necessary, a crosslinkable compound (E) having two or more polymerizable groups.
- the self-crosslinking compound (E) mainly gives the ophthalmic lens material I optical properties such as transparency and the like, and the ophthalmic lens material I is a lens material. It is a component that further enhances its mechanical strength so as to be able to withstand its use.
- crosslinkable compound (E) include, for example, ethylene glycol (meta) acrylate, ethylene glycol, and the like. Lug (meta) crates, triangular recollects (meeting) crates, propylene regals
- cross-linkable compounds (III) ophthalmic lens materials
- Diethylene glycol (meta) acrylate, diphenyl acid diaryl, and diethylene glycol Preference is given, especially to ethylene glycol (meta) creates and polyethylene glycol jars. No.
- the content of the crosslinkable compound (II) in the polymerization component should be not less than 0.01% by weight in order to sufficiently impart the optical properties and mechanical strength to the ophthalmic lens material I. Preferably 0. 0 5 % By weight or more, and ophthalmic lens material.
- the weight be less than 15% by weight, preferably less than 15% by weight.
- the polymerization component may contain an ultraviolet absorber for the purpose of improving the ultraviolet absorption of the ophthalmic lens material I.
- ultraviolet absorber for example, 2— (2′-hydroxy-5′-methylphenyl) benzotriazole,
- Z 1 is a halogen atom such as a hydrogen atom, a chlorine atom, a bromine atom, or an iodine atom, an alkyl group having 16 carbon atoms, or an alkoxy group having 1 to 6 carbon atoms.
- the groups Z 2 and Z 3 each independently represent a hydrogen atom or an alkyl group having 6 to 6 carbon atoms.
- Non-type UV absorber Salicylic acid derivative-type UV absorber
- Hydroxia Examples include a set phenone derivative ultraviolet absorber.
- benzotriazole-based UV absorbers are preferred from the viewpoint of UV-absorbing ability, and particularly, 2_ (5-Cross 1-2H— Benzotriazole 1-2-yl) 16_ (1, 1-dimethyl) 1-41-methylphenol represented by the above general formula (III), such as phenol Preferred compounds are preferred.
- the ultraviolet absorber may have a polymerizable group, may or may not have a polymerizable group, and is not particularly limited.
- the content of the ultraviolet absorber in the polymerization component is preferably 0.01% by weight or more, more preferably 0.1% by weight, in order to impart sufficient ultraviolet absorptivity to the ophthalmic lens material I. 0 5% by weight or more, and in order to prevent the relative decrease in other functions and the induction of polymerization inhibition by adding more than necessary, five times %, Preferably not more than 3% by weight.
- a siloxane-containing polymer may be prepared by polymerizing the above-mentioned polymerization component.
- the type and amount of the siloxane-containing polymer are appropriately adjusted, and the polymerization component is usually first added to a heat-polymerization method or a photopolymerization method described later.
- a radical polymerization initiator, a photosensitizer, and the like are added according to a radical polymerization method in which radicals are generated in an active unsaturated group and used for a polymerization reaction.
- radical polymerization initiators include, for example, azobisisomethylonitrile, azobisdimethylsilyl nitrile, and benzoyl benzonitrile.
- Hot weights such as filter oxide, t-butyl hydroperoxide, cumene oxide, etc.
- photosensitizers include, for example, 1,2_benzoanthraquinone, ⁇ -butylamine, and di- ⁇ -butylamine. , Trifluoromethyl, triethylamine, etc .; tri_ ⁇ -butylphosphine, arylthiourea, s-benzylisothiuro Nimu-rho—Tru-en sulphate, jet amino ethyl methacrylate, etc.
- the radical polymerization initiator, the photosensitizer and the like may be used by appropriately selecting one or more of them from among these forces. These are used in an amount of about 0.02 to 2 parts, preferably about 0.01 to 1 part by weight, based on 100 parts by weight (hereinafter referred to as "parts") of the total amount of the polymer components. We hope that it is about L part.
- the radical polymerization method only the polymerization component and the radical polymerization initiator or the photosensitizer may be subjected to the polymerization, but for example, the compatibility between the polymerization components may be used.
- a diluent may be used to further improve the water quality.
- diluents include, for example, methanol, ethanol, pranol, butyl phenol, phenol phenol, and hexanol. Alcohols such as knol; ketones such as aceton, methylethyl ketone; ethers such as getyl ether, tetrahydrofuran, etc. These can be used alone or as a mixture of two or more.
- alcohols having 1 to 6 carbon atoms are preferred, especially ⁇ -propanol, because of the point of view that the solubility of the polymerization component is excellent.
- Knoll, ⁇ — butanol and ⁇ — pentanol are preferred.
- the mixing ratio between the polymerization component and the diluent is determined by the weight ratio of the polymerization component and the diluent (polymerization component ⁇ diluent) in order to sufficiently dissolve the polymerization component in the diluent. Should be less than 90 Z 10, preferably less than 80 20. Further, in order to prevent the obtained polymer from becoming cloudy, deteriorating the optical properties, or having insufficient mechanical strength, the weight ratio is preferably 30 to 70 or more. Preferably, it is greater than 50 ⁇ 50.
- the ophthalmic lens material I of the present invention can be manufactured by any known manufacturing method. Although it is possible to manufacture the ophthalmic lens material I, it is possible to make the most of the performance of the obtained ophthalmic lens material I.
- the polymerization component and, if necessary, the diluent were adapted to the shape of the front surface of the lens, such as contact lenses and intraocular lenses. After injection into a mold consisting of a mold and a mold corresponding to the shape of the rear surface of the lens, the mold is tightly closed and then subjected to a polymerization reaction to contain siloxane. It is preferred to prepare the polymer and make the lens.
- a ⁇ shape compatible with a wanpis intraocular lens in which the lens and the support are integrated is used. It is also possible to use a mold corresponding to the shape of each of the lens and the support.
- a mixture of a polymerization component and a diluent as needed is injected into a mold, and then a polymerization reaction is carried out to produce a siloxane-containing polymer.
- the method of the polymerization reaction is not particularly limited, and a usual method can be employed.
- thermopolymerization method a method of the polymerization reaction
- a mixture of the polymerization component containing the above-mentioned radical polymerization initiator and, if necessary, a diluent is first mixed with, for example, 3 parts. It is heated to about 0 to 60 ° C for several hours to several 10 hours to polymerize it, and then heated up to about 120 to 140 for several hours to 10 hours.
- a method for completing the polymerization is to irradiate the mixture with a light beam having a wavelength corresponding to the absorption band of the activation of a radical polymerization initiator such as an ultraviolet ray.
- a polymerization method photopolymerization method
- a method of performing polymerization by combining a thermal polymerization method and a photopolymerization method a method of performing polymerization by combining a thermal polymerization method and a photopolymerization method.
- heating may be performed in a thermostat or a thermostat chamber, or electromagnetic waves such as microwaves may be generated. Irradiation may be used, and the heating may be performed stepwise.
- the photosensitizer is further added! You can do it.
- the eye lens material I may be subjected to mechanical processing such as cutting and polishing as required.
- the ophthalmic lens material I has characteristics that can be used suitably as an ophthalmic lens material, but a material that is more readily wetted by water is used.
- the siloxane-containing polymer is subjected to a genation treatment.
- the ophthalmic lens material of the present invention (hereinafter referred to as ophthalmic lens material II) has (A) 2 or more active unsaturated groups and a number average molecular weight of 2
- the polymer is obtained by polymerizing a siloxane polymer of 000 to 100 000 and a polymer component containing (B) vinyl ester of lower fatty acid as an essential component.
- the obtained siloxane-containing polymer is a polymer obtained by subjecting a saponified polymer to a saponification treatment. In the production method of the present invention, the genogenation treatment is performed. It is characterized by
- the saponification treatment according to the present invention refers to a low-grade which can be decomposed by saponification in a polymer in accordance with a conventionally known saponification method for polyvinyl ester.
- the units derived from the fatty acid vinyl ester (B) may be treated with an aluminum compound as described below, or may be treated with an acid such as sulfuric acid to obtain the following compounds. At that time, it is a vinyl alcohol.
- the saponification speed is slow, it is difficult to obtain a uniform product, and a side reaction may occur. Due to its drawbacks, genification by Al-Ri processing is desirable.
- the saponification treatment can provide the ophthalmic lens material II with hydrophilicity (surface water wettability) without substantially increasing the water content. it can .
- alkaline compounds used in the alkaline treatment include ammonia, alkaline metal hydroxides, alkaline earth metal hydroxides, and the like. Is received. Specific examples of such alkaline compounds include ammonium hydroxide, sodium hydroxide, potassium hydroxide, and calcium hydroxide. It is terrible. Since these alkaline compounds are mainly solids, they are dissolved, for example, in water, alcohols, ethers, etc., and are converted into an alkaline solution for saponification. It is good to use.
- ⁇ '-records include, but are not limited to, methanol, phenol, propanol, butyl and so on.
- gri ethers include, for example, methyl ether and tetrahydrofuran.
- alcoholic solutions of alcoholic compounds used for the genification treatment alcohols are preferred, and the genation treatment is preferred.
- a sodium hydroxide aqueous solution of sodium hydroxide having a concentration of 0.01 to 1 moles.
- the aqueous solution of methanol is a mixture of methanol and water (metanol water (body It is preferable that the product ratio is 30 Z70 to 90 Z10.
- the saponification treatment is carried out by the all-in-one treatment, it is possible to dye the ophthalmic lens material.
- siloxane-containing polymer after preparing a siloxane-containing polymer as described above, if the dye is used, methanol, ethanol, 21-propa
- the siloxane-containing polymer is diffused (dissolved) in an organic solvent such as ethanol, soaked in the siloxane-containing polymer to swell, and unreacted in the siloxane-containing polymer.
- the dye When the residual monomer is eluted, the dye is diffused into the polymer at the same time. Then, the dye can be fixed to the siloxane-containing polymer when the saponification treatment is carried out in the aluminum treatment.
- the dyes are not particularly limited, and include, for example, C.I. (C.I .: Color Index, hereinafter the same). Check 5, She's active blue 21, She's active orange 78, She's active Aero 1-5, She's Alive Active Blue 4, Shea's Alive Active Braid 11, Sea'Alia Active Reactive dyes are preferred, such as yellow 86, shii-yi active 1-163, shiiyuriburetobudo 180, etc. Is often illustrated.
- the amount of the dye to be used is not particularly limited as long as it is an amount that allows the obtained ophthalmic lens material II to be sufficiently dyed. No.
- the siloxane-containing polymer is subjected to a saponification treatment by being immersed in the above-mentioned alkaline solution or a solution of an acid compound.
- the temperature of the saponification treatment is not particularly limited, and generally ranges from 0 to loo, preferably lo ⁇ 7 o: It is desirable to set to about.
- the saponification time varies depending on the type of the alkaline compound or acidic compound, the concentration of the alkaline compound or acidic compound, the temperature of the saponification treatment, etc. Although it is not possible to determine, it is preferred that the hydrophilicity of the ophthalmic lens material II be improved for more than 0.1 hour in order to effectively improve its hydrophilicity. It is also desirable that the time is 0.5 hours or more, and that the transparency is reduced due to cloudiness or the mechanical strength is reduced, so that it is used as an ophthalmic lens. In order to avoid inadequate materials and to reduce the time required to work too quickly, work within 30 hours, preferably 15 hours You want:
- the polymer thus saponified may be boiled for several hours, for example, in a physiological saline solution (0.9% aqueous sodium chloride solution).
- the prepared siloxane-containing polymer may be irradiated with light, and then subjected to the saponification treatment as described above. It is possible.
- the siloxane-containing polymer is irradiated with light beforehand and then subjected to a saponification treatment by an alkaline treatment, the ophthalmic lens obtained is obtained.
- the surface water wettability of the closed material 11 is further improved.
- the light irradiation is preferably performed before the siloxane-containing polymer is subjected to the saponification treatment, but the light-irradiated silica is preferably used.
- the state of the polymer containing the polymer may be a dry state or a swelling state due to the extraction solution in the extraction step performed to remove residual monomer. It is not limited.
- the light to be irradiated is preferably ultraviolet light having a wavelength of less than or equal to 380 nm, and more preferably from the viewpoint of improving the water wettability efficiently. Or an ultraviolet ray having a wavelength of less than 300 nm, in particular, an ultraviolet ray having a wavelength around 185 nm and an ultraviolet ray having a wavelength around 250 nm at the same time. Irradiation is more preferable.
- the time of the light irradiation is to improve the water wettability efficiently without impairing the productivity in producing a desired ophthalmic lens from the ophthalmic lens material II. It should be between 0.1 and 600 minutes, preferably between 1 and 60 minutes.
- the dye is diffused (dissolved) in an organic solvent, and the siloxane-containing polymer is immersed in the organic solvent to swell the unreacted residue in the siloxane-containing polymer.
- the ophthalmic lens material I of the present invention is particularly suitable as a soft ophthalmic lens material. This is because the ophthalmic lens material I has the advantages of a conventional soft ophthalmic lens material such as high oxygen permeability, excellent resistance to lipid contamination and good water wettability. This is because of its excellent flexibility, especially the shape recovery.
- a material excellent in shape recovery is suitable as a lens material for a soft eye is that if it is used as a contact lens, the shape recovery is poor. Materials can hinder visual acuity immediately after wearing and, in addition, can cause patients to have difficulty wearing the lens while wearing it. It is pleasant and may also cause eye damage.
- the ophthalmic lens material I of the present invention has a high degree of oxygen permeability, excellent resistance to lipid contamination and good water wettability, as well as flexibility and softness. However, it is particularly suitable as an ophthalmic lens material because of its excellent shape recovery properties.
- the development of lens materials for soft eyes having high oxygen permeability is active, but these materials are made of silicon to provide high oxygen permeability. Use of ingredients is mandatory.
- the silicon-containing component imparts high oxygen permeability to the material, it has a high affinity for the lipid component, so it is used as an ophthalmic lens.
- it is extremely susceptible to contamination by lipids and has poor hydrophilicity. Such properties are also unsuitable as ophthalmic lens materials.
- the ophthalmic lens material 11 of the present invention has high oxygen permeability, and at the same time when it comes to the flexibility represented by shape recovery properties, it will undergo a genation treatment. It has excellent properties of hydrophilicity (surface water wettability) and lipid contamination resistance, and has the best characteristics as an ophthalmic lens material. It is a thing.
- this mold is transferred to a constant temperature, and the mold is irradiated with ultraviolet light having a wavelength of 360 nm at about lm WZ cm 2 for 1 hour using a mercury lamp to perform photopolymerization.
- ultraviolet light having a wavelength of 360 nm at about lm WZ cm 2 for 1 hour using a mercury lamp to perform photopolymerization.
- a siloxane-containing polymer having a contact lens shape was obtained.
- the saponification treatment of the siloxane-containing polymers shown in Tables 1 and 2 was performed using 0.25 mol / liter of sodium hydroxide in 60% methanol. It was immersed in an aqueous solution (25 ° C) for 6 hours.
- the obtained silicone-containing polymer was subjected to the saponification treatment as it was to obtain a contact lens-shaped weight. After irradiating the siloxane-containing polymer with ultraviolet light having a wavelength of 185 nm and ultraviolet light having a wavelength of 254 nm for 10 minutes, the saponification treatment is performed. And a polymer in the form of a transparent lens. The polymer subjected to this ultraviolet irradiation was used only for the measurement of the dynamic contact angle described later.
- the Dk values specified by ISO (Internatationa1OrganisattioniforStadnaradizatioon, International Organization for Standardization) were measured.
- the periphery of the polymer was fixed, and its center was fixed to a device that applied a load using a spherical jig with a tip diameter of about 3 mm.
- the shape recovery ratio when the value of the shape recovery ratio is large, the shape recovery is inferior, and especially when the value is 18% or more, an ophthalmic lens, especially Inappropriate as a takt lens or a soft intraocular lens. This can lead to poor wearing sensation and unstable visual acuity if worn on the eyes immediately after handling with a soft contact lens.
- a soft intraocular lens In the case of a soft intraocular lens, the bending operation at the time of surgery may be disturbed, and a bending mark may be left after insertion. It is.
- Shape recovery rate (%) ⁇ (TT 2 ) / /, ⁇ XI 0 0
- Example 6 and 10 and Comparative Examples 1 and 4 the obtained polymer was cut to a width of 5 mm, a length of about 12 mm, and a thickness of about 0.6 mm.
- a strip-shaped sample (made with a punching blade, with a constant width. The thickness was measured for each sample. The sample was obtained by replacing the swelling solution with distilled water from physiological saline.
- a dynamic contact angle measuring device (DCA_322, CAH
- the dynamic contact angle was measured using a company N, with a force var glass, and a test solution: distilled water for injection.
- the measurement method is as follows.
- the surface tension T of the test solution was measured using a force glass as a sample.
- the dynamic contact angle of the sample was measured by the measurement principle of the Wilhelmy method.
- Type of test solution distilled water for injection
- the value of the second cycle was Angle (°).
- the dynamic contact angle is an index of the water wettability of the polymer.
- the polymer having a dynamic contact angle of 120 ° or more has poor water wettability and is unsuitable as an ophthalmic lens material.
- oleic acid 0.3 g of oleic acid, 0.3 g of linoleic acid, 4.0 g of trininoic acid, 4.0 g of cetyl alcohol, 1.0 g of palmitin 0.3 g of acid, 4.0 g of spamacetic acid, 0.4 g of cholesterol, 0.4 g of cholesterol palmitate and 0.4 g of egg yolk
- the polymer was placed in a glass bottle containing 2 ml of an artificial eye oil solution (pH 7 buffer solution) consisting of 14.0 g of cin and shaken at 37 for 5 hours. .
- lipid adsorbed amount of the polymer (mg no. cm 2 ) was quantified.
- the polymer If the amount of lipid attached exceeds 0.3 mg Zcm 2 , the polymer is liable to adhere to lipid stains, has poor lipid stain resistance, and has poor contact resistance. Inappropriate as an ophthalmic lens such as a lens or an intraocular lens.
- a ' is an integer of 10 to 20, a ⁇ is an integer of 20 to 40) (number average molecular weight: 7500, average c) Number of lanthanides: 4)
- S i M a 3 Formula:
- a group represented by CH 2 C—COOCH 2 CH 2 ⁇ , a ′ ′′ is an integer of 5 to 25, and b is an integer of 1 to 5) (Average molecular weight: 900, average urethane group: 8)
- NVP N _ vinyl pyrrolidone
- the number average molecular weights of the above-mentioned Si Mal, Si Ma 2 and Si Ma 3 are determined by the size exclusion chromatographic polystyrene. It is a converted value.
- Each of the obtained polymers was dyed in a uniform transparent blue color, and had the same high molecular weight as the polymer obtained in Example 2 or the polymer obtained in Example 10. It had oxygen permeability and excellent lipid resistance, surface water wettability, and shape recovery. Industrial applicability
- the ophthalmic lens material of the present invention not only excels in lipid stain resistance, water wettability and oxygen permeability, but also flexibility and, in particular, shape recovery. It can be suitably used for various ophthalmic lenses such as soft contact lenses and soft intraocular lenses, in particular. According to the production method of the present invention, such an ophthalmic lens material can be easily obtained.
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- Oral & Maxillofacial Surgery (AREA)
- Ophthalmology & Optometry (AREA)
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Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/926,459 US6727336B1 (en) | 1999-05-12 | 2000-05-09 | Ocular lens materials and process for producing the same |
KR1020017013439A KR20020040661A (ko) | 1999-05-12 | 2000-05-09 | 안용(眼用)렌즈 재료 및 그 제조방법 |
AT00922989T ATE246222T1 (de) | 1999-05-12 | 2000-05-09 | Material für okularlinse und verfahren zu deren herstellung |
JP2000618770A JP3939927B2 (ja) | 1999-05-12 | 2000-05-09 | 眼用レンズ材料およびその製法 |
DE60004200T DE60004200T2 (de) | 1999-05-12 | 2000-05-09 | Material für okularlinse und verfahren zu deren herstellung |
CA002372930A CA2372930A1 (en) | 1999-05-12 | 2000-05-09 | Ocular lens materials and process for producing the same |
EP00922989A EP1176454B1 (en) | 1999-05-12 | 2000-05-09 | Ocular lens materials and process for producing the same |
AU43188/00A AU4318800A (en) | 1999-05-12 | 2000-05-09 | Ocular lens materials and process for producing the same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13167899 | 1999-05-12 | ||
JP11/131678 | 1999-05-12 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/926,459 A-371-Of-International US6727336B1 (en) | 1999-05-12 | 2000-05-09 | Ocular lens materials and process for producing the same |
US10/644,776 Continuation US20040054106A1 (en) | 1999-05-12 | 2003-08-21 | Ocular lens material and process for producing the same |
Publications (1)
Publication Number | Publication Date |
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WO2000070388A1 true WO2000070388A1 (fr) | 2000-11-23 |
Family
ID=15063674
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2000/002939 WO2000070388A1 (fr) | 1999-05-12 | 2000-05-09 | Materiau pour lentilles oculaires et leur procede de fabrication |
Country Status (9)
Country | Link |
---|---|
US (2) | US6727336B1 (ja) |
EP (1) | EP1176454B1 (ja) |
JP (1) | JP3939927B2 (ja) |
KR (1) | KR20020040661A (ja) |
AT (1) | ATE246222T1 (ja) |
AU (1) | AU4318800A (ja) |
CA (1) | CA2372930A1 (ja) |
DE (1) | DE60004200T2 (ja) |
WO (1) | WO2000070388A1 (ja) |
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Also Published As
Publication number | Publication date |
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EP1176454B1 (en) | 2003-07-30 |
CA2372930A1 (en) | 2000-11-23 |
DE60004200T2 (de) | 2004-02-26 |
AU4318800A (en) | 2000-12-05 |
US20040054106A1 (en) | 2004-03-18 |
JP3939927B2 (ja) | 2007-07-04 |
ATE246222T1 (de) | 2003-08-15 |
US6727336B1 (en) | 2004-04-27 |
EP1176454A1 (en) | 2002-01-30 |
KR20020040661A (ko) | 2002-05-30 |
DE60004200D1 (de) | 2003-09-04 |
EP1176454A4 (en) | 2002-06-19 |
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