CN104592905B - Light diffusion bonding oxidant layer and light diffusion bonding film - Google Patents
Light diffusion bonding oxidant layer and light diffusion bonding film Download PDFInfo
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- CN104592905B CN104592905B CN201410546694.9A CN201410546694A CN104592905B CN 104592905 B CN104592905 B CN 104592905B CN 201410546694 A CN201410546694 A CN 201410546694A CN 104592905 B CN104592905 B CN 104592905B
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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
- C09J133/00—Adhesives based on homopolymers or 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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09J133/10—Homopolymers or copolymers of methacrylic acid esters
- C09J133/12—Homopolymers or copolymers of methyl methacrylate
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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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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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
- C09J133/00—Adhesives based on homopolymers or 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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09J133/062—Copolymers with monomers not covered by C09J133/06
- C09J133/066—Copolymers with monomers not covered by C09J133/06 containing -OH groups
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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
- C09J133/00—Adhesives based on homopolymers or 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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
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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
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0268—Diffusing elements; Afocal elements characterized by the fabrication or manufacturing method
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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
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/318—Applications of adhesives in processes or use of adhesives in the form of films or foils for the production of liquid crystal displays
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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
- 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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- Organic Chemistry (AREA)
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- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Optics & Photonics (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Adhesive Tapes (AREA)
- Optical Elements Other Than Lenses (AREA)
- Laminated Bodies (AREA)
- Polarising Elements (AREA)
Abstract
The light diffusion bonding oxidant layer that the present invention is provided is the optical component that alternative conventional light diffusing sheet is used, the function with light diffusing sheet, and can realize the slimming of display thickness.The present invention also provides the light diffusion bonding film for having used the light diffusion bonding oxidant layer.The smooth diffusion bonding oxidant layer is the light diffusion bonding oxidant layer with light diffusion function, and the smooth diffusion bonding oxidant layer is formed by the adhesive composition containing copolymer and crosslinking agent and silicon class particle, and the copolymer is included：The carbon number of alkyl for C1~C14 (methyl) alkyl acrylate monomer at least one more than；And as containing combined polymerization monomer of the monomer selected from hydroxyl of copolymerizable functional group, carboxylic combined polymerization monomer, nitrogenous vinyl monomer and containing at least one in aromatic monomer more than, the transmitance of the smooth diffusion bonding oxidant layer is that more than 90%, haze value is that more than 40%, refractive index is more than 1.47.
Description
Technical field
The present invention relates to a kind of smooth diffusion bonding oxidant layer, the light diffusion bonding film of the light diffusion bonding oxidant layer is used.More
Specifically, the present invention relates to it is a kind of mainly as in liquid crystal display it is component parts, enter for fitting optical component
The fixed light diffusion bonding film of row.Particularly there is provided a kind of visual person side for having and being laminated in backlight of LCD
Light diffusing sheet function and it can realize that the light diffusion of filming (slimming of display thickness) is viscous because light diffusing sheet is not used
Oxidant layer is tied, and has used the light diffusion bonding film of the light diffusion bonding oxidant layer.
Background technology
In recent years, the manufacture of the liquid crystal display centered on medium and small-sized, sales volume gradually increase.Separately
Outside, along with the increase to medium and small-sized liquid crystal displays demand, constantly require display device structure it is further simplify and
The filming of optical component, so as to reduce manufacturing cost and realize the slimming of display panel thickness.
Relative to above-mentioned problem, in order to by adhesive layer by optical member adherings such as Polarizer, polarizers in liquid crystal
In the adherend such as unit, it has been proposed that the various adhesive films with good adhesion power (for example, referring to patent document 1~2).
Recorded in patent document 1 and a kind of butyl acrylate etc. as the monomer of main component and has been contained into acrylamide
The optics adhesive composition of compound etc..
A kind of (methyl) acrylate using with carbon number for 4~8 alkyl has been recorded in patent document 2 and has been used as master
Want the monomer of composition and the optics adhesive composition with carboxylic monomer and nitrogenous vinyl monomer.
In addition, it is proposed that pass through a variety of adhesive films studied repeatedly in order to improve the refractive index of adhesive layer (for example, ginseng
According to patent document 3~9).
Record a kind of with aromatic ring and containing optics use of the refractive index for 1.51~1.75 tackifier in patent document 3
Adhesive composition.
A kind of bonding sheet of the adhesive composition including the polymer containing combined polymerization has been recorded in patent document 4, it is described
Combined polymerization polymer is the combined polymerization polymer of the acrylic acid modified monomer containing aromatic ring.
The optics of a kind of tackifying resin including containing aromatic ring and aromatic phosphoric acid esters plasticizer has been recorded in patent document 5
Use adhesive composition.
A kind of binding agent solidified by adhesive composition, the adhesive composition have been recorded in patent document 6
Including：Acrylic resin；And the aromatic compound containing an ethene unsaturated group.
Recorded in patent document 7 it is a kind of by the acrylic adhesive containing aromatic monomer by phase retardation film and two-fold
Penetrate the optical element that plate interfixes.
A kind of adhesive composition containing polyurethane resin is recorded in patent document 8, the polyurethane resin is to make
Aromatic diisocyanate and the reaction of aromatic polyester glycol are formed.
One kind is recorded in patent document 9 crosslinking such as isocyanates is added in the adhesion resins such as acrylate copolymer
Light diffusing adhesive composition obtained from agent and the light diffusing agent being made up of resin particles such as styrene resin beads.
Prior art literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2012-177022 publications
Patent document 2：Japanese Unexamined Patent Publication 2012-201734 publications
Patent document 3：Japanese Unexamined Patent Publication 2007-084762 publications
Patent document 4：Japanese Unexamined Patent Publication 2011-153169 publications
Patent document 5：Japanese Unexamined Patent Publication 2012-167188 publications
Patent document 6：Japanese Unexamined Patent Publication 2012-021148 publications
Patent document 7：Japanese Unexamined Patent Publication 2006-293281 publications
Patent document 8：Japanese Unexamined Patent Publication 2009-091522 publications
Patent document 9：Japanese Unexamined Patent Publication 7-216328 publications
The content of the invention
The invention problem to be solved
In recent years,, as the adhesive film of the interlayer laminating for optical component in order to realize the filming of optical component
It is the thickness of thin of adhesive layer to less than 20 μm of adhesive film to ask it.
Generally, the cohesive force of adhesive layer and the thickness of adhesive layer are generally proportionate, therefore, if by the thickness of adhesive layer
Degree is thinning, then cohesive force can be caused to reduce therewith.
But, require that adhesive film has following performance in recent years：Even if the thickness of adhesive layer is thinning, it may have with
The equal cohesive force of past adhesive film (adhesive layer is that thickness is about 30 μm of thick-layer), and under high temperature, high humidity environment
For durability after placing for a long time, it may have with the equal performance above of conventional adhesive film.
In addition, from the thickness of adhesive layer can be made thinning and can form that need not to implement Ageing Treatment (real at a constant temperature
Apply curing) adhesive layer from the viewpoint of, it is desirable to be formed as NCF (Non Carrier Film, non-bearing film) form, its
The part for only being constituted by eliminating the adhesive layer after cohesive film base material and being had " mold release film/adhesive layer/mold release film " is constituted.
In addition, in conventional adhesive film, due to implementing Ageing Treatment after adhesive film of being fitted in adherend, therefore,
The tack between adherend and adhesive layer can be improved.
But, for the adhesive film using NCF forms, due to having been completed the Ageing Treatment of adhesive layer, therefore
Tack between adherend and adhesive layer is not enough.Based on this, existing needs to carry out at corona the surface of adherend
The problem of surface treatment such as reason.
Therefore a kind of adhesive film for meeting these requirements and overcoming these problems is needed.
The problem of the present invention is to provide a kind of smooth diffusion bonding oxidant layer, used the light of the light diffusion bonding oxidant layer to spread
Adhesive film, wherein, the light diffusion bonding oxidant layer is can to substitute the optical component that conventional light diffusing sheet is used, and it has
The function of light diffusing sheet, and the slimming of display thickness can be realized.
The method for solving problem
In order to solve above-mentioned problem, the technological thought of light diffusion bonding oxidant layer of the invention is, by including copolymer
Light diffusion bonding oxidant layer is formed with the adhesive layer of crosslinking agent and silicon microparticle, wherein, the copolymer is included：Alkyl
Carbon number for C1~C14 (methyl) alkyl acrylate monomer at least one more than；And as containing copolymerizable
Functional group monomer selected from the combined polymerization monomer of hydroxyl, carboxylic combined polymerization monomer, nitrogenous vinyl monomer,
More than at least one in aromatic monomer.
In addition, in order to solve above-mentioned problem, the present invention provides a kind of smooth diffusion bonding oxidant layer, and it is with light diffusion function
Light diffusion bonding oxidant layer, the smooth diffusion bonding oxidant layer is by the binding agent group containing copolymer and crosslinking agent and silicon class particle
Compound is formed；The copolymer is included：In (methyl) alkyl acrylate monomer that the carbon number of alkyl is C1~C14 extremely
Lack more than one；And be selected from as the monomer containing copolymerizable functional group by the combined polymerization monomer of hydroxyl, containing carboxylic
It is more than at least one in the combined polymerization monomer of base, nitrogenous vinyl monomer and the group constituted containing aromatic monomer,
Moreover, it is that more than 40%, refractive index is more than 1.47 that the transmitance of the smooth diffusion bonding oxidant layer, which is more than 90%, haze value,.
Additionally, it is preferred that the cohesive force when thickness of foregoing smooth diffusion bonding oxidant layer is 20 μm relative to glass plate is 2.0N/
More than 25mm.
Additionally, it is preferred that foregoing adhesives composition is to contain 0.01~5 parts by weight relative to the copolymers of 100 parts by weight
Formed as the silicon class particle of the isocyanate compound of crosslinking agent, 0.5~20 parts by weight, wherein, the copolymer is by alkane
The carbon number of base is more than at least one in C1~C14 (methyl) alkyl acrylate monomer and as containing can
Combined polymerization monomer of the monomer of the functional group of copolymerization selected from hydroxyl, carboxylic combined polymerization monomer, nitrogenous vinyl
Monomer and containing at least one weight average molecular weight formed above in aromatic monomer be 20~2,500,000 copolymer.
Additionally, it is preferred that the haze value of foregoing smooth diffusion bonding oxidant layer is more than 40% and less than 90%.
Additionally, it is preferred that foregoing silicon class particle be selected from by silicon dioxide granule, silica melamine core-shell particles,
One or more of group that silicone particle is constituted.
In addition, the present invention, which provides a kind of one side in mold release film, is formed with the smooth diffusion bonding oxidant layer and with the demoulding
The light diffusion bonding film of the composition of film/light diffusion bonding oxidant layer/mold release film.
In addition, the present invention provides the light diffusion bonding that a kind of one side in base material is laminated foregoing smooth diffusion bonding oxidant layer
Film.
In addition, the present invention provides a kind of Polarizer peripheral components adhesive film for having used foregoing smooth diffusion bonding film.
In addition, the present invention, which provides a kind of interlayer between Polarizer and brightness enhancement film, has used foregoing smooth diffusion bonding oxidant layer
Adhesive film.
In addition, the present invention provides a kind of optical film with adhesive layer, it is laminated at least one face of optical film
There is foregoing smooth diffusion bonding oxidant layer.
Invention effect
Based on the present invention, using the teaching of the invention it is possible to provide a kind of smooth diffusion bonding oxidant layer and used the light of the light diffusion bonding oxidant layer to expand
Adhesive film is dissipated, the smooth diffusion bonding oxidant layer is to overcome conventional requirement item and problem so as to substitute conventional light to expand
Fall apart the optical component used, the function with light diffusing sheet and the slimming that can realize display thickness.
Embodiment
Below, based on the preferred embodiment explanation present invention.
The light diffusion bonding oxidant layer of the present invention is the light diffusion bonding oxidant layer with light diffusion function, foregoing smooth diffusion bonding
Oxidant layer is formed by the adhesive composition containing acrylic polymer and silicon class particle, foregoing smooth diffusion bonding oxidant layer it is saturating
It is more than 90% to cross rate, and haze value is more than 40%, and refractive index is more than 1.47.
Additionally, it is preferred that the haze value of foregoing smooth diffusion bonding oxidant layer is more than 40% and less than 90%.Additionally, it is preferred that foregoing
Light diffusion bonding oxidant layer is by the adhesive composition containing copolymer (acrylic polymer) and crosslinking agent and silicon class particle
To be formed, and the copolymer is included：In (methyl) alkyl acrylate monomer that the carbon number of alkyl is C1~C14 extremely
Lack more than one；And as containing copolymerizable functional group monomer be selected from by hydroxyl combined polymerization monomer, contain
It is more than at least one in the combined polymerization monomer of carboxyl, nitrogenous vinyl monomer and the group constituted containing aromatic monomer.
In addition, in foregoing adhesives composition, preferably with respect to the acrylic polymer (copolymerization of adhesive composition
Thing) 100 parts by weight, the carbon number of the alkyl containing 50~98 parts by weight is C1~C14 (methyl) alkyl acrylate list
At least one above and 2~50 parts by weight in body are selected from by hydroxyl as the monomer containing copolymerizable functional group
Combined polymerization monomer, carboxylic combined polymerization monomer, nitrogenous vinyl monomer and the group constituted containing aromatic monomer
In it is at least one more than the monomer containing functional group；Also, for the mixing ratio of the foregoing monomer containing functional group, relatively
In 100 parts by weight as the carbon number of the (methyl) alkyl acrylate monomer of main component, alkyl for C1~C14
(methyl) alkyl acrylate monomer, coordinate the combined polymerization monomers of hydroxyl of 0.1~50 parts by weight, 0~5 parts by weight (when
Containing being 0.1~5 parts by weight sometimes) carboxylic combined polymerization monomer, 0~50 parts by weight are (when containing being 5~50 weight sometimes
Part) nitrogenous vinyl monomer, 0~30 parts by weight (when containing sometimes be 5~30 parts by weight) contain aromatic monomer.
In addition, relative to the copolymer of 100 parts by weight, preferably comprising isocyanic acid of 0.01~5 parts by weight as crosslinking agent
The silicon class particle of ester compounds, 0.5~20 parts by weight.
(methyl) alkyl acrylate monomer for being C1~C14 as the carbon number of alkyl, can be enumerated：(methyl) propylene
Sour methyl esters, (methyl) ethyl acrylate, (methyl) propyl acrylate, (methyl) isopropyl acrylate, (methyl) butyl acrylate,
(methyl) isobutyl acrylate, (methyl) amyl acrylate, (methyl) Hexyl 2-propenoate, (methyl) heptylacrylate, (methyl)
2-ethyl hexyl acrylate, (methyl) Isooctyl acrylate monomer, (methyl) 2-EHA, (methyl) acrylic acid nonyl ester, (methyl)
The different nonyl ester of acrylic acid, (methyl) decyl acrylate, (methyl) acrylic acid hendecane base ester, (methyl) dodecylacrylate,
(methyl) tridecyl acrylate, (methyl) acrylic acid tetradecane base ester, (methyl) acrylic acid ring pentyl ester, (methyl) acrylic acid
It is more than at least one in cyclohexyl etc..Alkyl in (methyl) alkyl acrylate monomer can be straight-chain, branched, ring
Any one in shape.Relative to the parts by weight of acrylic polymer (copolymer) 100 of adhesive composition, preferred alkyl
The ratio of (methyl) alkyl acrylate monomer that carbon number is C1~C14 is 50~98 parts by weight.
As the combined polymerization sex ethylene base monomer (containing aromatic monomer) containing aryl, (methyl) acrylic acid can be enumerated
Benzyl ester, (methyl) acrylic acid naphthalene ester, (methyl) phenoxyethyl acrylate, (methyl) acrylic acid benzene oxygen butyl ester, (methyl) acrylic acid
2- (1- naphthoxys) ethyl ester, (methyl) acrylic acid 2- (2- naphthoxys) ethyl ester, (methyl) acrylic acid 6- (1- naphthoxys) own ester,
(methyl) acrylic acid 6- (2- naphthoxys) own ester, (methyl) acrylic acid 8- (1- naphthoxys) monooctyl ester, (methyl) acrylic acid 8- (2- naphthalenes
Epoxide) monooctyl ester etc. contains aromatic acrylic monomer, and styrene etc. contains aromatic vinyl monomer.In order to obtain refractive index
High adhesive layer, preferably coordinate at least more than one contain aromatic monomer.
It is C1~C14's by the way that these to be contained to aromatic monomer and the atomic number of alkyl carbon as main component monomer
(methyl) alkyl acrylate monomer is mixed, and the refractive index of resulting light diffusion bonding oxidant layer can be made to improve and carry out
Adjustment, reduces the refringence between optical component, reduction total reflection, thus, it is possible to improve total light transmittance.The present invention's
In light diffusion bonding oxidant layer, when adhesive composition include contain aromatic monomer when, relative to 100 parts by weight as mainly into
(methyl) alkyl acrylate monomer divided, the content preferably containing aromatic monomer is 5~30 parts by weight.
As nitrogenous vinyl monomer, for example, it can enumerate NVP, N- caprolactams, (first
Base) the ring-type nitrogen vinyl compound such as acryloyl morpholine；N- ethyl-N-methyls (methyl) acrylamide, N- Methyl-N-propyls
(methyl) acrylamide, N- methyl-N-isopropyls (methyl) acrylamide, N, N- dimethyl (methyl) acrylamide, N, N- bis-
Ethyl (methyl) acrylamide, N, N- dipropyl (methyl) acrylamide, N, N- diisopropyls (methyl) acrylamide, N, N- bis-
The dialkyl group such as butyl (methyl) acrylamide replace (methyl) acrylamide；(methyl) acrylic acid N- ethyl-N-methyl ammonia ethyl ester,
(methyl) acrylic acid N- Methyl-N-propyl ammonia ethyl ester, (methyl) acrylic acid N- methyl-N-isopropyl ammonia ethyl ester, (methyl) propylene
Sour N, N- dimethylamino methyl esters, (methyl) acrylic acid N, N- dimethylamino ethyl ester, (methyl) acrylic acid N, N- dimethylamino propyl ester,
(methyl) acrylic acid N, N- dimethylamino butyl ester, (methyl) acrylic acid N, N- dipropyl ammonia ethyl ester, (methyl) acrylic acid N, N- bis-
Butyl ammonia ethyl ester etc. (methyl) propenoic acid dialkyl urethane；N- ethyl-N-methyls aminopropyl (methyl) acrylamide, N- methyl-
N- propyl group aminopropyl (methyl) acrylamide, N- methyl-N-isopropyls aminopropyl (methyl) acrylamide, N, N- dimethylaminos third
Base (methyl) acrylamide, N, N- diethylaminopropyls (methyl) acrylamide, N, N- dipropyl aminopropyl (methyl) acryloyl
Amine, N, N- dimethylaminoethyls (methyl) acrylamide, N, the substitution of the dialkyl group such as N- diethyl aminoethyls (methyl) acrylamide
It is more than at least one in aminoalkyl (methyl) acrylamide etc..
In order to be different from the combined polymerization monomer of hydroxyl described later, it is preferably as foregoing nitrogenous vinyl monomer
The monomer of hydroxyl is not contained, the monomer of hydroxyl and carboxyl is not contained more preferably.It is preferably foregoing illustrative as such monomer
Monomer, for example, contain N, the acrylic monomer of N- dialkyl group substituted-amino or N, N- dialkyl group substituted amido；N- vinyl
The N- vinyl substituted lactams classes of pyrrolidones, N- caprolactams etc.；N- (the first of N- (methyl) acryloyl morpholine etc.
Base) acryloyl group substituted cyclic amine.
In addition, in the light diffusion bonding oxidant layer of the present invention, the nitrogenous vinyl monomer contained by adhesive composition, energy
Enough assign the necessary cohesive force of light diffusion bonding oxidant layer and durability.In the light diffusion bonding oxidant layer of the present invention, relative to 100
Parts by weight are as (methyl) alkyl acrylate monomer of main component, the nitrogenous vinyl contained in preferred binder composition
The content of monomer is 5~50 parts by weight.
In addition, in the light diffusion bonding oxidant layer of the present invention, the nitrogenous vinyl monomer contained as adhesive composition,
Particularly preferably using NVP, N, N- dimethyl (methyl) acrylamide, N, N- diethyl (methyl) acryloyl
Amine, N, N- dipropyl (methyl) acrylamide, N, N- diisopropyls (methyl) acrylamide, N, N- dibutyl (methyl) acryloyl
Amine, N, N- dimethyl aminopropyls (methyl) acrylamide, N, N- diethylaminopropyls (methyl) acrylamide, N, N- dimethylaminos
Ethyl (methyl) acrylamide, N- caprolactams etc..
As the copolymerizable vinyl monomer (carboxylic combined polymerization monomer) containing carboxyl, it can enumerate：(methyl) third
Olefin(e) acid, (methyl) carboxy ethyl acrylate, methacrylic acid carboxylic pentyl ester, 2- (methyl) acryloyl-oxyethyl hexahydro O-phthalic
Acid, 2- (methyl) acryloxypropyls hexahydrophthalic acid, 2- (methyl) acryloyl-oxyethyls phthalic acid, 2-
(methyl) acryloyl-oxyethyl butanedioic acid, 2- (methyl) acryloyl-oxyethyls maleic acid, carboxy-polycaprolactone list (methyl)
It is more than at least one in acrylate, 2- (methyl) acryloyl-oxyethyl tetrahydrophthalic acid etc..
In addition, in the light diffusion bonding oxidant layer of the present invention, the carboxylic combined polymerization contained by adhesive composition
Monomer can assign light diffusion bonding oxidant layer necessary cohesiveness.In the light diffusion bonding oxidant layer of the present invention, binding agent combination
Thing can also not contain carboxylic combined polymerization monomer, but when containing sometimes, main component is used as relative to 100 parts by weight
(methyl) alkyl acrylate monomer, the content of preferably carboxylic combined polymerization monomer is 0.1~5 parts by weight.
As the combined polymerization sex ethylene base monomer (the combined polymerization monomer of hydroxyl) of hydroxyl, for example, it can enumerate (first
Base) acrylic acid 8- hydroxyls monooctyl ester, the own ester of (methyl) acrylic acid 6- hydroxyls, (methyl) acrylic acid 4- hydroxybutyls, (methyl) propylene
Sour hydroxy methacrylate etc. (methyl) hydroxyalkyl acrylates class, N- hydroxyls (methyl) acrylamide, N- methylols (methyl) propylene
It is more than at least one in (methyl) acrylic amides of hydroxyl such as acid amides, N- ethoxys (methyl) acrylamide etc..
In addition, in the light diffusion bonding oxidant layer of the present invention, the combined polymerization list of the hydroxyl contained by adhesive composition
Body, can be used as the combined polymerization monomer of the content for reducing carboxylic combined polymerization monomer, and described containing carboxylic
The monomer of base produces the resulting light diffusion bonding oxidant layer adherend perishable to the ITO surfaces of transparent and electrically conductive film etc.
Corrosive effects.Therefore, the combined polymerization monomer of hydroxyl can aid in improve light diffusion bonding oxidant layer cohesive force and
Reduce corrosivity.In the light diffusion bonding oxidant layer of the present invention, relative to (methyl) propylene of 100 parts by weight as main component
The content of the combined polymerization monomer of the hydroxyl contained in acid alkyl ester monomer, preferred binder composition is 0.1~50 weight
Part.
The acrylic polymer of the adhesive composition used in the light diffusion bonding oxidant layer of the present invention, is preferably by alkane
The carbon number of base contains and can be total to above, with being used as at least one in C1~C14 (methyl) alkyl acrylate monomer
Combined polymerization monomer of the monomer of poly- functional group selected from hydroxyl, carboxylic combined polymerization monomer, nitrogenous vinyl list
The weight average molecular weight that more than at least one in body and the group constituted containing aromatic monomer is formed is total to for 20~2,500,000
Polymers.
To the polymerization of copolymer, there is no particular limitation, and solution polymerization process, emulsion polymerization etc. can be used suitable
Known polymerization.The weight average molecular weight of copolymer is preferably 200,000~2,500,000.
Above-mentioned copolymer is preferably acrylic polymer, preferably comprises (methyl) acrylate monomer or (methyl) propylene
The weight % of acrylic monomer 50~100 of acid, (methyl) acrylic amide etc..
In foregoing adhesives composition, light diffusing agent is used as by coordinating in above-mentioned copolymer (acrylic polymer)
Silicon class particle, required optical characteristics (transmitance, haze value) can be assigned.And then, by coordinating crosslinking agent, times suitably
Meaning additive, can adjust the characteristics such as required physical property.
As silicon class particle, in single particle or compound particle that can be selected from silicon-containing compound, specifically, Ke Yiju
Go out silicon dioxide granule, silica melamine core-shell particles, silicone particle, silicate glass particle etc..It is preferably selected from
In one or more of group being made up of silicon dioxide granule, silica melamine core-shell particles, silicone particle.Dioxy
SiClx melamine core-shell particles, are the compound particles of the shell of core with melamine and silica.The compound particle has
There is the structure on the surface that the fine particle (nano-particle) of cataloid is closely filled in melamine particle.
As silicone particle, silicone resin particle, silicone rubber particle, crosslinking silicone particle etc. can be enumerated.
In the adhesive composition that the light diffusion bonding oxidant layer of the present invention is used, relative to the acrylic compounds of 100 parts by weight
Polymer, preferably comprises the silicon class particle of 0.5~20 parts by weight.
As crosslinking agent, it can enumerate：Hexamethylene diisocyanate, IPDI, diphenyl methane two
The biuret modified body or different of the diisocyanates of isocyanates, toluene di-isocyanate(TDI), xylylene diisocyanate etc.
The PIC of the addition product of the polyalcohol more than trivalent such as isocyanurate modified body and trimethylolpropane or glycerine etc.
It is more than at least one in compound, metal class chelate, epoxide etc..Alternatively, it is also possible to be handed over by light such as ultraviolets
Join to be crosslinked binding agent.
In the case where making crosslinking copolymers using crosslinking agent, preferred copolymer, which has, to be crosslinked with crosslinking agent
Functional group's (hydroxyl or carboxyl etc. can be selected according to the species of crosslinking agent) of reaction, and preferably comprise in side chain with these
The monomer of functional group.In addition, relative to the copolymer of 100 parts by weight, preferred binder composition contains 0.01~5 parts by weight work
For the isocyanate compound of crosslinking agent.
As other any conditions, silane coupler, antioxidant, surfactant, solidification can be suitably coordinated to promote
Enter known to agent, plasticizer, filler, crosslinking catalyst, cross-linked inhibitor, curing inhibitors, processing aid, age resister etc.
Additive.These both may be used singly or in combination of two or more and used.
The present invention light diffusion bonding oxidant layer can by being coated with base material or mold release film after above-mentioned adhesive composition,
Adhesive composition is set to be crosslinked and obtain.
The adhesive layer of interlayer laminating for optical component etc., it is desirable to be thin adhesive layer, preferably foregoing light diffusion
The thickness of adhesive layer is 1 μm~20 μm.In addition, generally adhesive layer cohesive force and adhesive layer thickness substantially into than
Example, but be more than 2.0N/25mm to the cohesive force of glass plate when the thickness of preferred light diffusion bonding oxidant layer is 20 μm in the present invention.
In addition, in the case that the thickness of adhesive layer is not 20 μm, the cohesive force of when " thickness 20 μm " (N/25mm) is by binding agent
The thickness of layer is set as T (μm), the cohesive force of adhesive layer is set as to F (N/25mm), and by formula " (during 20 μm of thickness
Cohesive force)=20F/T " calculates.
When the light diffusion bonding oxidant layer of the present invention is used in the interlayer of optical component laminating etc., preferably light diffusion bonding
The transmitance of oxidant layer is that more than 90%, haze value is that more than 40%, refractive index is more than 1.47.It is preferred that haze value is more than 40%
And less than 90%.In order to reduce the light reflection between light diffusion bonding oxidant layer and optical component on interface, it is desirable to refringence
It is as small as possible.Therefore, the refractive index of above-mentioned smooth diffusion bonding oxidant layer is preferably 1.47~1.50.
The light diffusion bonding film of the present invention can be by forming light diffusion bonding of the invention in the one side of base material or mold release film
Oxidant layer is manufactured.
As for forming the base material film of light diffusion bonding oxidant layer or protecting the mold release film (barrier film) of adhesive surface, it can use
Resin films such as polyester film etc..
For base material film, it can implement logical on the face opposite with being formed with light diffusion bonding oxidant layer side of resin film
The antifouling process of the progress such as silicone, the releasing agent of fluorine class or coating agent, silicon dioxide microparticle is crossed, can be implemented by antistatic additive
Coating or the antistatic treatment of progress such as be mixed into.
For mold release film, on the face for fitting side with the progress of the adhesive surface of light diffusion bonding oxidant layer, implement to pass through silicon
The demoulding processing of the progress such as ketone, the releasing agent of fluorine class.
, can by the face for implementing demoulding processing for mold release film of being fitted respectively on the two sides of a light diffusion bonding oxidant layer
Form the composition of " mold release film/light diffusion bonding oxidant layer/mold release film ".In the case, by by the mold release film of both sides successively or
Peel off simultaneously and expose adhesive surface, can be with the optical member adhering such as optical film.As optical film, light polarizing film, phase can be enumerated
Potential difference film, antireflection film, anti-dazzle (anti-glare) film, ultraviolet-absorbing film, infrared absorbing film, optical compensation films, blast
Film etc..For example, it is preferable to use light diffusion bonding oxidant layer in Polarizer and the interlayer of brightness enhancement film.
The light diffusion bonding film of the present invention can be used for the various light of peripheral components of the liquid crystal display based on Polarizer
Learn in the laminating of film, touch panel with various optical films, Electronic Paper with various optical films, organic EL with various optical films etc..
In addition, light diffusion bonding oxidant layer can be stated at least one face upper strata prestack of these optical films and prepared with bonding
The optical film of oxidant layer.Specifically, " optical film/light diffusion bonding oxidant layer/optical film ", " optical film/light diffusion bonding can be enumerated
Oxidant layer/mold release film ", " optical film/light diffusion bonding oxidant layer ", " optical film/light diffusion bonding oxidant layer/optical film/light diffusion bonding
Oxidant layer/optical film ", " optical film/light diffusion bonding oxidant layer/optical film/light diffusion bonding oxidant layer/mold release film ", " mold release film/light
The composition of diffusion bonding oxidant layer/optical film/light diffusion bonding oxidant layer/mold release film " etc..Bonded when being set on two-sided in optical film
During oxidant layer, its one side only can also be arranged to light diffusion bonding oxidant layer.
For example, having the light protected with mold release film to spread as " optical film/light diffusion bonding oxidant layer/mold release film "
In the case of adhesive layer, peel mold release film off and expose the light diffusion bonding agent as " optical film/light diffusion bonding oxidant layer "
Layer, and fitted with other optical films, thus, it is possible to obtain light diffusion bonding oxidant layer for interlayer laminating such as " optics
The composition of film/light diffusion bonding oxidant layer/optical film ".
Embodiment
Below, the present invention is illustrated based on embodiment.
<The manufacture of acrylic copolymer>
[embodiment 1]
Nitrogen is imported into the reaction unit equipped with agitator, thermometer, reflux condenser and nitrogen ingress pipe, so as to use nitrogen
Gas has replaced the air in reaction unit.Then, butyl acrylate, 1.0 weight of 90 parts by weight are added into reaction unit
The acrylic acid 4- hydroxybutyls of part, the acrylamide of 9 parts by weight, and solvent (the acetic acid second of 60 parts by weight is added simultaneously
Ester).Then, by instilling within 2 hours the azodiisobutyronitrile as polymerization initiator of 0.1 parts by weight, make its anti-at 65 DEG C
Answer 6 hours, obtain weight average molecular weight for 700,000, acrylic acid copolymer soln 1 for embodiment 1.Take acrylic acid copolymer
A part for thing, is used as acid value measuring sample described later.
[embodiment 2~5 and comparative example 1~3]
It is and upper in addition to it have adjusted the composition of each monomer respectively described in (A), (B), (C), (D), (E) such as table 1
State and similarly operated for the acrylic acid copolymer soln 1 of embodiment 1, obtained being used for embodiment 2~5 and comparative example 1
~3 acrylic acid copolymer soln.
<The preparation of adhesive composition, light diffusion bonding oxidant layer and light diffusion bonding film>
[embodiment 1]
In the acrylic acid copolymer soln 1 of the embodiment 1 manufactured as described above, the Coronate of 0.1 parts by weight is added
L-45 (addition product of toluene di-isocyanate(TDI) (TDI) compound) and 3.0 parts by weight silica melamine core-shell particles
(2 μm of particle diameter) is simultaneously stirred mixing, has obtained the adhesive composition of embodiment 1.By the adhesive composition, be coated on by
After on the stripping film for PET (PET) film composition for having been coated with silicone resin, done at a temperature of 90 DEG C
It is dry and remove solvent, then, cure 7 days, have so as to obtain on the one side of stripping film in the environment of 23 DEG C, 50%RH
There is the light diffusion bonding film of the embodiment 1 for the light diffusion bonding oxidant layer (20 μm of thickness) for being crosslinked adhesive composition.
[embodiment 2~5 and comparative example 1~3]
Except (F), (G) of such as table 1 it is described have adjusted the composition of additive respectively in addition to, the light with above-described embodiment 1
Diffusion bonding film is similarly operated, and has obtained the light diffusion bonding film of embodiment 2~5 and comparative example 1~3.
Table 1
In table 1, the numerical value in bracket represents the parts by weight match ratio of each composition.Parts by weight be with set monomer total amount,
That is what (A)~(E) was organized adds up to the mode of about 100 parts by weight to obtain.Wherein, the monomer total amount of embodiment 2 is 105 weight
Part, the monomer total amount of embodiment 3 be 92 parts by weight, the monomer total amount of comparative example 2 be 110.5 parts by weight, comparative example 3 monomer it is total
Measure as 110 parts by weight.
In addition, the corresponding compound name of abbreviation of each composition used in table 1 is shown in Table 2.Here, Coronate
(U ロ ネ ー ト, registration mark) L-45 is the trade name of Nippon Polyurethane Industry Co., Ltd., and D-11ON is Mitsui Chemicals strain
The trade name of formula commercial firm.TDI nail phenylene diisocyanates, XDI refers to xylylene diisocyanate.
Table 2
<Test method and evaluation>
Stripping film (PET film for scribbling silicone resin) is peeled off from the light diffusion bonding film of embodiment 1~5 and comparative example 1~3
And expose light diffusion bonding oxidant layer, and light diffusion bonding oxidant layer is transferred on the one side of Polarizer (film).
The assay method ＞ of ＜ cohesive forces
Light diffusion bonding oxidant layer is transferred to the one side of the Polarizer (film) of 180 μm of thickness, so as to obtain as sample
The light diffusion bonding film optical film of adhesive layer (carry).
On the non-tin face that light diffusion bonding film is fitted in the soda-lime glass cleaned with acetone with hold-down roller, 50 DEG C,
Pressure cooker processing is carried out under conditions of 0.5MPa × 20 minute.Then, recover to 23 DEG C × 50%RH environment, use tension test
Machine and according to JIS Z0237《Adhesive tape, bonding sheet test method》, determine the stripping of the light diffusion bonding film after 1 hour
Intensity, by using 300mm/min speed to 180 ° of directions peel off when peel strength spread as the light of light diffusion bonding film it is viscous
Tie the cohesive force of oxidant layer.
<The assay method of refractive index>
With Abbe refractometer (manufacturer：ERMA, model：ER-2S the refraction of the light diffusion bonding oxidant layer at 23 DEG C) is determined
Rate.
<The assay method of transmitance>
The assay method of light transmittance：According to JIS K7105,《The optical characteristics test method of plastics》Determine light diffusion bonding
The transmitance of oxidant layer.
The assay method ＞ of ＜ haze values
The assay method of haze value：According to JIS K7136,《The mist degree computational methods of plastics-transparent material》Light is determined to expand
Dissipate the haze value of adhesive layer.
<The test method of durability>
By using the adhesive film of the 10cm square prepared with the same method of the measure of cohesive force, soda-lime glass is fitted in
Prepare sample on non-tin face, the sample be placed in the environment of 60 DEG C × 90%RH after 250 hours, take out to 23 DEG C ×
50%RH environment, with the state of the light diffusion bonding film after visual observe 1 hour, so as to judge durability.
○：The stripping and foaming of light diffusion bonding film are not produced completely
△：A part for light diffusion bonding film generates stripping and foamed.
×：The entirety of light diffusion bonding film generates stripping and foamed.
The measurement result of embodiment 1~5 and comparative example 1~3 is shown in Table 3.
Table 3
For the light diffusion bonding film of embodiment 1~5, when the thickness of light diffusion bonding oxidant layer is 20 μm to glass
The cohesive force of plate is more than 2.0N/25mm.In addition, it is 90% that the refractive index of light diffusion bonding oxidant layer, which is more than 1.47, transmitance,
More than and haze value be more than 40%, durability it is also excellent.That is, the light diffusion bonding film of embodiment 1~5 disclosure satisfy that required
It is required that and overcoming problem.
As reference, using with the identical light diffusion bonding agent composition of embodiment 1~5 and preparing light in the same way
Diffusion bonding oxidant layer thickness is respectively 10 μm, 13 μm, 15 μm, 20 μm of light diffusion bonding film, and light diffusion bonding is determined respectively
The transmitance and haze value of oxidant layer, and the results are shown in table 4.The light for having used light diffusion bonding agent composition is spread viscous
For the transmitance for tying oxidant layer, although independent of the thickness of adhesive layer, but understand that haze value becomes in the thickness of adhesive layer
Reduced in the case of thin.
Table 4
| The thickness (μm) of adhesive layer | 20 | 15 | 13 | 10 |
| Haze value (%) | 85.77 | 80.75 | 78.26 | 72.99 |
| Transmitance (%) | 93.19 | 93.63 | 93.77 | 93.89 |
The adhesive film of comparative example 1, because the monomer composition of acrylic polymer is single 2EHA reason, refractive index
It is low；Due to the reason of not siliceous class particle, haze value is low.Moreover, durability is also poor.
The adhesive film of comparative example 2, it may be possible to due to silicon class particle content more than reason, cohesive force is low, transmitance is low, resistance to
Long property is also poor.
The adhesive film of comparative example 3, due to the poor reason of silicon class particle, haze value is low；Due to adhesive composition
The reason not crosslinked, cohesive and durability are also poor.
So, the adhesive film of comparative example 1~3 can not meet conventional proposed requirement and overcome what is existed in the past to ask
Topic.
Claims (8)
1. a kind of smooth diffusion bonding oxidant layer, it is the light diffusion bonding oxidant layer with light diffusion function, the smooth diffusion bonding agent
Layer contains acrylic polymer, crosslinking agent and silicon class particle,
The acrylic polymer is formed by weight average molecular weight for 200,000~2,500,000 copolymer, and the copolymer is by lower list
Body copolymerization is formed：Relative to acrylic monomer described in 100 parts by weight, consumption is former for the carbon of (A) alkyl of 50~98 parts by weight
Subnumber for C1~C14 (methyl) alkyl acrylate monomer at least one more than；And relative to described in 100 parts by weight
(A) carbon number of alkyl at least one in C1~C14 (methyl) alkyl acrylate monomer more than, as containing can
Combined polymerization monomer of the monomer of the functional group of copolymerization selected from (B) hydroxyl by 0.1~50 parts by weight, 0.1~5 parts by weight
(C) carboxylic combined polymerization monomer, (D) nitrogenous vinyl monomer of 5~50 parts by weight and (E) of 5~30 parts by weight contain
It is more than at least one in the group that aromatic monomer is constituted,
In the adhesive composition, relative to copolymer described in 100 parts by weight, contained with the ratio of 0.5~20 parts by weight
The silicon class particle,
The transmitance of the smooth diffusion bonding oxidant layer is more than 90%, and haze value is less than more than 40% 90%, and refractive index is
1.47~1.50.
2. light diffusion bonding oxidant layer as claimed in claim 1, wherein, when the thickness of the smooth diffusion bonding oxidant layer is 20 μm
When, the cohesive force relative to glass plate is more than 2.0N/25mm.
3. light diffusion bonding oxidant layer as claimed in claim 1 or 2, wherein, in the adhesive composition, relative to 100 weights
The copolymer of part is measured, the isocyanate compound as the crosslinking agent is contained using the ratio of 0.01~5 parts by weight.
4. light diffusion bonding oxidant layer as claimed in claim 1 or 2, wherein, the silicon class particle is selected from by silica
One or more of group that particle, silica melamine core-shell particles, silicone particle are constituted.
5. a kind of smooth diffusion bonding film, it is viscous that it forms light diffusion according to any one of claims 1 to 4 in the one side of mold release film
Knot oxidant layer is formed, and the composition with mold release film/light diffusion bonding oxidant layer/mold release film.
6. a kind of smooth diffusion bonding film, it is viscous that it is laminated light diffusion according to any one of claims 1 to 4 on the one side of base material
Knot oxidant layer is formed.
7. a kind of adhesive film, its interlayer between Polarizer and brightness enhancement film has used according to any one of claims 1 to 4
Light diffusion bonding oxidant layer.
8. a kind of optical film with adhesive layer, it, which is laminated with least one face of optical film in Claims 1 to 4, appoints
Light diffusion bonding oxidant layer described in one.
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| JP2013-226265 | 2013-10-31 | ||
| JP2013226265A JP6343836B2 (en) | 2013-10-31 | 2013-10-31 | Light diffusion adhesive layer and light diffusion adhesive film |
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| JP6620325B2 (en) * | 2014-08-06 | 2019-12-18 | 藤森工業株式会社 | Adhesive layer and adhesive film |
| JP6644971B2 (en) * | 2014-08-06 | 2020-02-12 | 藤森工業株式会社 | Adhesive layer and adhesive film |
| JP6520483B2 (en) * | 2015-06-30 | 2019-05-29 | 日本ゼオン株式会社 | Adhesive composition for optical member, optical laminate, and surface light source device |
| WO2017010502A1 (en) * | 2015-07-13 | 2017-01-19 | 王子ホールディングス株式会社 | Adhesive sheet, laminate, and method for producing same |
| JP6140774B2 (en) * | 2015-07-22 | 2017-05-31 | 日東電工株式会社 | Polarizing film laminate having a transparent adhesive layer and display panel |
| JP6895266B2 (en) | 2017-02-09 | 2021-06-30 | リンテック株式会社 | Adhesive sheet |
| JP6805014B2 (en) | 2017-02-09 | 2020-12-23 | リンテック株式会社 | Adhesive sheet |
| JP6688822B2 (en) * | 2017-03-29 | 2020-04-28 | 日東電工株式会社 | One-sided protective polarizing film with adhesive layer, image display device and continuous production method thereof |
| JP6730348B2 (en) * | 2017-03-29 | 2020-07-29 | 日東電工株式会社 | One-sided protective polarizing film with adhesive layer, image display device and continuous production method thereof |
| KR102388932B1 (en) * | 2019-10-22 | 2022-04-22 | 일진머티리얼즈 주식회사 | Impact absorption layer and adhesive film tape comprising thereof |
| CN111399096B (en) * | 2020-04-02 | 2022-01-11 | 合肥翰博星辰高新材料有限公司 | Optical diffusion film and manufacturing method thereof |
| KR102677755B1 (en) * | 2021-08-12 | 2024-06-24 | (주)이녹스첨단소재 | Adhesive film for wafer back grinding |
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| KR20160083827A (en) | 2016-07-12 |
| TW201634633A (en) | 2016-10-01 |
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| JP6343836B2 (en) | 2018-06-20 |
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