CN109935382A - Insulated electric conductor and cable - Google Patents
Insulated electric conductor and cable Download PDFInfo
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- CN109935382A CN109935382A CN201811102910.5A CN201811102910A CN109935382A CN 109935382 A CN109935382 A CN 109935382A CN 201811102910 A CN201811102910 A CN 201811102910A CN 109935382 A CN109935382 A CN 109935382A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
Project of the invention is to provide the insulated electric conductor and cable having even if in colorant using phthalocyanine blue with the resin combination of high-fire resistance.The method used for solving the problem is; use a kind of insulated electric conductor; its insulating layer (30) with conductor (11) and around aforementioned conductor; aforementioned dielectric layer is formed by crosslinked resin combination; the resin combination contains 0.05 to 2 parts by weight of (2) phthalocyanine blue, (3) 1 relative to 100 parts by weight of (1) polyolefin resin; bis- [2- (2- hydroxy benzoyl) diazanyl] dodecane -1,12- diketone (CAS number 63245-38-5) 0.5 to 2 parts by weight of 12-.
Description
Technical field
The present invention relates to insulated electric conductors and cable.
Background technique
It is known that phthalocyanine blue be as be directed to resin combination one of the most common organic pigment of blue colorant,
It is used in a large amount of resin combinations, the lining material for electric wire and cable.Phthalocyanine blue is also referred to as copper phthalocyanine, has in chemical structure
Copper.
The copper-promoted oxidative degradation into polyolefin, therefore exist and be difficult to use in electric wire and cable that must have high-fire resistance etc.
The case where.
It, can also be by adding specific metal even proposing the resin combination containing phthalocyanine blue according to patent document 1
(3- (N- salicyl) amino -1,2,4- triazole or M-phthalic acid bis- (2- phenoxy group propionyl hydrazines) are heat-resisting to improve for passivator
Property.
In recent years, due to the lightweight of vehicle, saving spatialization etc., electric wire used in rolling stock, automobile etc. and electricity
Cable requires that diameter is thin, lightweight, it is necessary to flow more current in the small electric wire of cross-sectional area of conductor area, lining material needs
It is resistant to the high-fire resistance of conductor temp.-elevating.Further, since with the motorized of the representatives such as hybrid vehicle, electronic vehicle, in automobile
In, also with rolling stock similarly, for electric wire and cable for, it is also necessary to have high-fire resistance.
Existing technical literature
Patent document
Patent document 1: Japanese Patent Publication 64-5609 bulletin
Summary of the invention
Problems to be solved by the invention
But if using specific matal deactivator, although heat resistance improves to a certain extent, be unable to satisfy with
Without heat resistance same in the case of phthalocyanine blue.Therefore, in the case where not using phthalocyanine blue, without considering to electric wire and cable
The influence of heat resistance, but in the case where having used phthalocyanine blue, there are problems that electric wire and cable heat resistance can be deteriorated.
Therefore, problem of the present invention is that, provide even if in colorant use phthalocyanine blue, it may have high-fire resistance it is exhausted
Edge electric wire and cable.
The method used for solving the problem
In order to solve the above problems, the inventors of the present invention to as matal deactivator, with the change that can capture copper ion
The compound and their combination for learning structure are studied, and invention below is as a result completed.That is, being passivated to various metals
Agent and combinations thereof is studied, as a result, it has been found that, by the polyolefin resin containing phthalocyanine blue and with bis- [2- (the 2- hydroxyls of 1,12-
Base benzoyl) diazanyl] dodecane -1,12- diketone, it can get and be not added with same heat resistance in the case of phthalocyanine blue.
Further have the further insight that, in order to maintain high-fire resistance, regardless of the content of phthalocyanine blue, containing a certain amount of 1,
Bis- [2- (2- hydroxy benzoyl) diazanyl] dodecane -1,12- diketone of 12- are required.
That is, the present invention is as follows.
[1] a kind of insulated electric conductor, the insulating layer with conductor and around aforementioned conductor, aforementioned dielectric layer is by through handing over
The resin combination of connection is formed, and the resin combination contains (2) phthalocyanine blue relative to 100 parts by weight of (1) polyolefin resin
Bis- [2- (2- hydroxy benzoyl) diazanyl] dodecane -1,12- diketone of 0.05 to 2 parts by weight, (3) 1,12- (CAS number
63245-38-5) 0.5 to 2 parts by weight.
[2] insulated electric conductor according to [1], aforementioned dielectric layer constitute outermost layer.
[3] insulated electric conductor according to [1] or [2], aforementioned dielectric layer include multiple layers, and aforesaid plurality of layer is respectively by preceding
Resin combination is stated to be formed.
[4] insulated electric conductor according to any one of [1]~[3], aforementioned resin contain 100 to 200 weight
Part metal hydroxides.
[5] insulated electric conductor according to [4], aforementioned metal hydroxide are magnesium hydroxide and/or aluminium hydroxide.
[6] insulated electric conductor according to any one of [1]~[5] has and is set to aforementioned conductor and aforementioned dielectric layer
Between middle layer.
[7] insulated electric conductor according to [6], aforementioned middle layer are polyethylene terephthalate (PET) film.
[8] a kind of cable has 1 or more insulated electric conductors and is set to around aforementioned 1 or more insulated electric conductors
Restrictive coating, aforementioned restrictive coating formed by crosslinked resin combination, and the resin combination is relative to (1) polyolefin resin
100 parts by weight contain bis- [2- (2- hydroxy benzoyl) diazanyl] dodecanes-of 0.05 to 2 parts by weight of (2) phthalocyanine blue, (3) 1,12-
1,12- diketone (CAS number 63245-38-5) 0.5 to 2 parts by weight.
[9] cable according to [8], with more aforementioned dielectric electric wires, aforementioned more insulated electric conductors are twisted.
[10] cable according to [8] or [9], aforementioned resin contain 100 to 200 part by weight of metal hydroxides
Object.
[11] cable according to [10], aforementioned metal hydroxide are magnesium hydroxide and/or aluminium hydroxide.
[12] cable according to any one of [8]~[11], aforementioned dielectric electric wire are any one of [1]~[7] institute
The insulated electric conductor stated.
The effect of invention
Have in accordance with the invention it is possible to provide even if in colorant using phthalocyanine blue high-fire resistance insulated electric conductor and
Cable.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the embodiment of display insulated electric conductor of the invention.
Fig. 2 is the cross-sectional view of an embodiment of display cable of the invention.
Fig. 3 is the cross-sectional view of another embodiment of display cable of the invention.
Symbol description
1: insulated electric conductor；3: insulated electric conductor；5: insulating layer；11: conductor；15:PET film；20: cable；30: insulating layer；40:
Restrictive coating；50: cable；60: separation layer；70: shielded layer；80: strand；90: space；100: insulating layer；110: flame-retardant layer.
Specific embodiment
First to it is being able to use in insulated electric conductor and cable of the invention, prevent it is bad containing heat resistance caused by phthalocyanine blue
The resin combination of change is illustrated.
(base polymer of resin combination)
In the present invention, from the viewpoint of assigning insulating properties, as base polymer used in resin combination, preferably
Polyolefin resin.The example of polyolefin resin used in the present invention can enumerate polyethylene, polypropylene, ethylene, propylene
Copolymer, propylene diene copolymer, ethylene-alpha-olefin copolymer, ethylene vinyl acetate copolymer, ethylene-acrylate are total
The acid modifier etc. of polymers and they, these ingredients may be used alone, can also be used in combination.In these polyolefin resins,
Ethylene vinyl acetate copolymer, ethylene-alpha-olefin copolymer etc. can be preferably listed.
In addition, base polymer means the polymer that content is most in resin combination in the present invention.
In addition, antioxidant, silane coupling agent, fire retardant, resistance can also be added as needed other than these ingredients
Fire auxiliary agent, crosslinking agent, cross-linking aid, crosslinking accelerator, surfactant, softening agent, inorganic filler, compatilizer, stabilizer,
The additives such as ultraviolet absorbing agent, amine system of being obstructed light stabilizer (HALS).Especially in the case where requiring high-fire resistance, preferably exist
Antioxidant, ultraviolet absorbing agent, HALS are added in base polymer.
(phthalocyanine blue)
Resin combination containing phthalocyanine blue especially mostly as halogen-free insulated electric conductor and cable lining material and make
With being easy to happen the promotion of oxidative degradation caused by copper.Therefore, in the case where using phthalocyanine blue, insulated electric conductor, electricity are easy to happen
The reduction of cable heat resistance.
It,, can be with relative to 100 parts by weight polyolefin resins as the content of phthalocyanine blue in resin combination in the present invention
For 0.05~2 parts by weight, preferably 0.08~1.5, more preferably 0.7~1.0 weight %.
Here, in the case that the content of phthalocyanine blue is less than 0.05 parts by weight relative to 100 parts by weight polyolefin resins, relatively
It is reduced in the content of polyolefin resin, copper, therefore, although reduce without heat resistance, coloring is reduced.In addition, adding
In the case where adding more than 2 parts by weight, although the variation that coloring is not big, adverse effect can be generated to electrical insulating property.
(bis- [2- (2- hydroxy benzoyl) diazanyl] dodecane -1,12- diketone (CAS number 63245-38-5) of 1,12-)
In the present invention, 1,12- bis- [2- (2- hydroxy benzoyl) diazanyl] dodecane -1,12- diketone are as capture by phthalein
The matal deactivator for the copper ion that cyanines indigo plant generates plays a role.There are many such matal deactivator is on sale.On the other hand it goes back
It solves, the effect form of the compound of supplying metal ion, metal ion according to present in resin combination are by copper conductor
The difference of the case where Deng external supply etc. and it is different.
Here, the content as bis- [2- (2- hydroxy benzoyl) diazanyl] dodecane -1, the 12- diketone of 1,12-, relative to
100 parts by weight polyolefin resins can be 0.5~2 parts by weight, preferably 0.75~1.5 parts by weight, more preferably 1~1.25
Parts by weight.
Relative to 100 parts by weight polyolefin resins, 1,12- bis- [2- (2- hydroxy benzoyl) diazanyl] dodecanes -1,12-
In the case that diketone is less than 0.5 parts by weight, although the improvement for showing heat resistance to a certain extent is insufficient.Relative to
100 parts by weight polyolefin resins, if 1,12- bis- [2- (2- hydroxy benzoyl) diazanyl] dodecane -1,12- diketone are more than 2
Then there is the case where its heat resistance effect saturation in parts by weight, in addition, there is also lubricities to become strong, be kneaded the case where extending.
Furthermore, it desired to from the viewpoint of safety when ensuring fire, in the rolling stock electric wire of high-fire resistance
It asks halogen-free and requires anti-flammability.Such insulated electric conductor and cable must add the hydrogen-oxygen as fire retardant in lining material
Change the metal hydroxides such as magnesium, aluminium hydroxide.And it has the further insight that, 1,12- bis- [2- (2- hydroxy benzoyl) diazanyls] 12
Alkane -1,12- diketone and magnesium hydroxide, aluminium hydroxide is same has high-fire resistance, further, even if containing in metal hydroxides
Impurity also can be improved heat resistance.
(crosslinking)
The case where by the coil serving of the invention for requiring the polyolefin resin of high-fire resistance like that as insulated electric conductor and cable
Under, it is necessary to crosslinking could obtain sufficient insulation effect.That is, polyolefin resin has fusing point more as described above, if uncrosslinked,
Then there are following worries: if being used at a temperature of high, can deform, melt depending on the situation.
It about the method for crosslinking, is not particularly limited as long as resin combination can be crosslinked by rule, such as can benefit
It is crosslinked with the saturated vapor of 1.0~3MPa.In addition it is also possible to cooperate crosslinking agent, cross-linking aid, it is real after extrusion molding
Apply crosslinking Treatment.
In addition, the convenience of the manufacturing process for electric wire and cable, is preferably added to resin group for organic peroxide
It closes the organic peroxide crosslinking being crosslinked in object using heat, be crosslinked, using the radioactive ray of the energy of ionising radiation in resin
The silane coupling agents such as grafting vinyl alkoxy silane on composition and the crosslinked with silicane for carrying out water crosslinking.
(resin combination)
By the base polymer, phthalocyanine blue, (bis- [2- (the 2- hydroxy benzenes of 1,12- that make the resin combination of above-mentioned predetermined amount
Formoxyl) diazanyl] crosslinking of dodecane -1,12- diketone, resin combination of the invention can be obtained.In addition, using the resin group
Object is closed, insulated electric conductor and cable of the invention can be manufactured.
Hereinafter, being illustrated referring to example of the attached drawing to insulated electric conductor preferred in the present invention and cable.
Fig. 1 be shown one embodiment of the present invention relates to the insulated electric conductor section vertical relative to length direction
Figure.
(conductor)
Conductor 11 used in the present invention can be used general material, for example, fine copper, tin-coated copper, copper alloy, aluminium, gold,
Silver etc..In addition it is also possible to implement conductor obtained by the metal platings such as tin, nickel using in metal wire periphery.Further, can also make
With the strands conductor for being twisted metal wire.Sectional area, the outer diameter of conductor 11 can the electricity according to needed for insulated electric conductor 1
Characteristic suitably changes, and can enumerate such as sectional area is 1mm2The above 400mm2Below, outer diameter is 1.25mm or more 25.8mm or less
Electric wire.
(insulated electric conductor)
As shown in Figure 1, insulated electric conductor 1 of the present embodiment has insulating layer 5, the insulating layer around conductor 11
5 are made of resin combination of the invention.
Moreover, in the case that the effect inhibition that insulating layer 5 is capable of resin combination through the invention has used phthalocyanine blue
The reduction of 1 heat resistance of insulated electric conductor.
In addition, preferably insulating layer 5 constitutes outermost layer in insulated electric conductor 1.By will be formed by resin combination of the invention
Insulating layer 5 be set to outermost layer, the deterioration of heat resistance caused by being able to suppress as using phthalocyanine blue.
Furthermore it is preferred that insulating layer 5 includes multiple layers, each layer is formed by resin combination of the invention respectively.Thereby, it is possible to
The reduction of heat resistance caused by more effectively inhibiting as using phthalocyanine blue.
In addition, polyethylene terephthalate (PET) film 15 contacts the periphery of conductor 11, by using PET in Fig. 1
Film 15 further obtains heat resistance and/or the excellent characteristic of abrasion resistence.By further using PET film, led in manufacture insulation
When line, resin combination can be prevented to be mixed into conductor.
In Fig. 1, the case where forming PET film and insulating layer double-layer structure, however, the present invention is not limited thereto are instantiated.For example, can
To be set as 3-tier architecture there are middle layer between PET film and insulating layer.That is, insulating layer is necessarily single layer, it can also be by wrapping
Multiple layers of stepped construction is included to constitute.
(cable)
Cable 20 of the invention is shown in Fig. 2.
Cable 20 of the invention has the restrictive coating 40 being set to around 1 insulated electric conductor, and restrictive coating 40 is by tree of the invention
Oil/fat composition is constituted.
That is, same as resin combination used in above-mentioned insulated electric conductor, restrictive coating 40 used in the present invention is by through handing over
The resin combination of connection is formed, and the resin combination contains (2) phthalocyanine blue relative to 100 parts by weight of (1) polyolefin resin
Bis- [2- (2- hydroxy benzoyl) diazanyl] dodecane -1,12- diketone of 0.05 to 2 parts by weight, (3) 1,12- (CAS number
63245-38-5) 0.5 to 2 parts by weight.
Here, it is not particularly limited as insulated electric conductor used in cable of the invention, as long as by conductor
By insulating layer coating etc. with the electric wire of insulating properties.
But, it is desirable to it is as insulated electric conductor, it is preferable to use of the invention in the case where further obtaining effect of the invention
Insulated electric conductor 1.Thereby, it is possible to more effectively inhibit to reduce using heat resistance caused by phthalocyanine blue.
In addition, restrictive coating 40 is necessarily single layer, can also be made of the stepped construction including multiple layers.
Fig. 3 be display one embodiment of the present invention relates to 50 length direction of cable sectional view.As shown in figure 3,
Cable 50 of the invention is, comprising more insulated electric conductors 3 in cable core, more insulated electric conductors 3 are twisted and constitute strand 80.Electricity
Cable 50 has strand 80, separation layer 60, shielded layer 70 and restrictive coating 40.Separation layer 60 can according to need setting, volume
It is around in around strand 80.Shielded layer 70 is formed in around separation layer 60.It is formed between strand 80 and separation layer 60
There is space 90, restrictive coating 40 is formed with around shielded layer 70.Restrictive coating 40 is made of resin combination of the invention, even if
In the case where having used phthalocyanine blue, it is also able to suppress the deterioration of heat resistance.
It is not particularly limited as insulated electric conductor 3 used in cable of the invention, as long as by the way that conductor insulate
Layer is coated equal and with insulating properties electric wire.In Fig. 3, in insulated electric conductor 3, has insulating layer outward since conductor 11
100, flame-retardant layer 110.
In addition, insulated electric conductor 3 used in the present invention, can be used insulated electric conductor 1 of the invention.Thus, it is possible to
It is made to further suppress the cable of the deterioration as caused by heat resistance.
As separation layer 60, material is not limited, and aluminium layer pressure PET strip etc. can be used.
In addition, material is not particularly limited as shielded layer 70, copper or copper alloy can be used.
In the present invention, by having restrictive coating 40, being able to suppress is reduced using heat resistance caused by phthalocyanine blue.Restrictive coating
40 itself be necessarily single layer, may include multiple layers.In addition it is also possible to be formed with it between insulated electric conductor and restrictive coating 40
His resin layer.
In addition, a plurality of insulated electric conductor 3 is set as strand 80 in Fig. 3, can also according to the purposes of cable will it is a plurality of absolutely
Edge electric wire 3 uses not twistedly.
Embodiment
Embodiment is given below, the present invention will be described in further detail, but the present invention is not limited to following implementations
Example.
Material is weighed respectively according to match ratio shown in table 1, table 2, is kneaded with pressure kneader, is squeezed out with strand, after cooling
Graininess is made.
More tinned copper conductors are being twisted and production, conductor cross sectional area 25mm2Tinned copper conductor on, rolling thickness
Each material through being kneaded is squeezed out with the thickness of 0.9mm be coated on it, later by 20 μm of polyethylene terephthalate film
It is crosslinked insulating materials using the saturated vapor of 1.5MPaG, obtains insulated electric conductor 1 shown in Fig. 1.
[table 1]
[table 2]
(evaluation method)
[initial tensile test]
Lining material is removed from the insulated electric conductor of production, the conductor side of the lining material peeled is ground so that its
Smoothly, then, using cupping machine by the test specimen being stamped to form by No. 6 dumbbells recorded in JISK6251 with 200mm/
The speed tensile of min measures tensile strength and elongation at break.
[heat-resistance test (1)]
Lining material is removed from the insulated electric conductor of production, at 220 DEG C, using differential scanning calorimetry (DSC) to the quilt peeled
Cover material measurement oxidation induction time.When being warming up to 220 DEG C, in a nitrogen atmosphere with 10 DEG C/min progress.
Using the oxidation induction time sample longer than the reference example for being not added with phthalocyanine blue as qualification.
[heat-resistance test (2)]
Dumbbell is made according to the method that initial tensile test is recorded, by the method recorded in JISK6257 in 180 DEG C of temperature
Degree is lower to implement 10 days thermal aging tests.By 50% or more the display when applying certain load to the dumbbell after thermal aging test
The sample of elongation is as qualified.
[comprehensive descision]
Sample that will be qualified in heat-resistance test (1) and (2) is as qualified.
Show the results of the evaluation table 3.As it can be seen that although embodiment 1 to 8 within the scope of the present invention is added to phthalocyanine blue still
Maintain high-fire resistance.In addition, in heat-resistance test (1), 220 DEG C of oxidation induction time is long compared with reference example, it is known that
In the cooperation of the polyolefine resin composition containing magnesium hydroxide, 1,12- bis- [2- (2- hydroxy benzoyl) diazanyls] 12
The addition of alkane -1,12- diketone improves heat resistance.
Embodiment 6 to 8 has attempted bis- [2- (2- hydroxy benzoyl) diazanyl] dodecane -1,12- diketone of 1,12- and other
The combination of matal deactivator.Although be entirely it is qualified, as from more visible compared with Example 5, not big collaboration
Effect, it is seen that the effect of 1,12- bis- [2- (2- hydroxy benzoyl) diazanyl] dodecane -1,12- diketone is big.
Comparative example 1 and comparative example 2 are not added with matal deactivator, so that heat resistance is also poor compared with reference example.
Comparative example 3 and comparative example 4 are added to matal deactivator, so that heat resistance is improved, but heat-resistance test (1) and
(2) insufficient.
The oxidation induction time of comparative example 5 is long, but unqualified in heat-resistance test (2).This is considered as, although oxidation
Start late, but the time before oxidative degradation has an impact mechanical property is short.
Comparative example 6 to 8 is the metal other than bis- [2- (2- hydroxy benzoyl) diazanyl] dodecane -1,12- diketone of 1,12-
The combination of passivator, shortage synergy, it is unqualified.
[table 3]
(other embodiments and variation)
The evaluation method of the jacket layer material of the evaluation method and cable of the resin combination of the insulated electric conductor of embodiment is
Similarly.Therefore, it is considered that also obtaining same result in the jacket layer material of cable.
In addition, easy to imagine that if resin combination used in insulated electric conductor and cable of the invention is used for soft
Pipe etc., even if being then also able to maintain high-fire resistance using phthalocyanine blue.
Claims (12)
1. a kind of insulated electric conductor, the insulating layer with conductor and around the conductor,
The insulating layer is formed by crosslinked resin combination, and the resin combination is relative to 100 weight of (1) polyolefin resin
Bis- [2- (the 2- hydroxy benzenes first of 1,12- that amount part contains 0.05 to 2 parts by weight of (2) phthalocyanine blue, (3) CAS number is 63245-38-5
Acyl group) diazanyl] 0.5 to 2 parts by weight of dodecane -1,12- diketone.
2. insulated electric conductor according to claim 1, wherein the insulating layer constitutes outermost layer.
3. insulated electric conductor according to claim 1 or 2, wherein the insulating layer includes multiple layers, the multiple layer difference
It is formed by the resin combination.
4. insulated electric conductor described in any one of claim 1 to 3, wherein the resin combination contains 100 to 200
Parts by weight of metal hydroxide.
5. insulated electric conductor according to claim 4, wherein the metal hydroxides is magnesium hydroxide and/or hydroxide
Aluminium.
6. insulated electric conductor according to any one of claims 1 to 5, have be set to the conductor and the insulating layer it
Between middle layer.
7. insulated electric conductor according to claim 6, wherein the middle layer is polyethylene terephthalate (PET)
Film.
8. a kind of cable, there is 1 or more insulated electric conductors and the sheath around described 1 or more insulated electric conductors
Layer,
The restrictive coating is formed by crosslinked resin combination, and the resin combination is relative to 100 weight of (1) polyolefin resin
Bis- [2- (the 2- hydroxy benzenes first of 1,12- that amount part contains 0.05 to 2 parts by weight of (2) phthalocyanine blue, (3) CAS number is 63245-38-5
Acyl group) diazanyl] 0.5 to 2 parts by weight of dodecane -1,12- diketone.
9. cable according to claim 8, with the more insulated electric conductors, the more insulated electric conductors are twisted
's.
10. cable according to claim 8 or claim 9, wherein the resin combination contains 100 to 200 part by weight of metal hydrogen
Oxide.
11. cable according to claim 10, wherein the metal hydroxides is magnesium hydroxide and/or aluminium hydroxide.
12. the cable according to any one of claim 8~11, wherein the insulated electric conductor is in claim 1~7
Described in any item insulated electric conductors.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017241960A JP7045638B2 (en) | 2017-12-18 | 2017-12-18 | Insulated wires and cables |
| JP2017-241960 | 2017-12-18 |
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| CN109935382A true CN109935382A (en) | 2019-06-25 |
| CN109935382B CN109935382B (en) | 2021-12-07 |
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| Publication number | Publication date |
|---|---|
| JP2019110021A (en) | 2019-07-04 |
| CN109935382B (en) | 2021-12-07 |
| JP7045638B2 (en) | 2022-04-01 |
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