CN113755101A - Glue composition with good re-peeling property - Google Patents
Glue composition with good re-peeling property Download PDFInfo
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- CN113755101A CN113755101A CN202111041103.9A CN202111041103A CN113755101A CN 113755101 A CN113755101 A CN 113755101A CN 202111041103 A CN202111041103 A CN 202111041103A CN 113755101 A CN113755101 A CN 113755101A
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- parts
- weight
- acrylic polymer
- adhesive
- good
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- 239000000203 mixture Substances 0.000 title claims abstract description 26
- 239000003292 glue Substances 0.000 title claims abstract description 20
- 229920000058 polyacrylate Polymers 0.000 claims abstract description 22
- 239000000853 adhesive Substances 0.000 claims abstract description 15
- 230000001070 adhesive effect Effects 0.000 claims abstract description 15
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 15
- -1 aromatic ring compound Chemical class 0.000 claims abstract description 11
- 150000001875 compounds Chemical class 0.000 claims abstract description 10
- 229920001228 polyisocyanate Polymers 0.000 claims abstract description 8
- 239000005056 polyisocyanate Substances 0.000 claims abstract description 8
- 239000002253 acid Substances 0.000 claims abstract description 6
- 229920000642 polymer Polymers 0.000 claims abstract description 6
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims abstract description 3
- 239000000178 monomer Substances 0.000 claims abstract description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 36
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 36
- 238000006243 chemical reaction Methods 0.000 claims description 21
- 229910052757 nitrogen Inorganic materials 0.000 claims description 18
- 238000001816 cooling Methods 0.000 claims description 12
- 238000010992 reflux Methods 0.000 claims description 12
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical class OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 8
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 6
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 6
- 238000007865 diluting Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 claims description 3
- GCTPMLUUWLLESL-UHFFFAOYSA-N benzyl prop-2-enoate Chemical compound C=CC(=O)OCC1=CC=CC=C1 GCTPMLUUWLLESL-UHFFFAOYSA-N 0.000 claims description 3
- PJUIMOJAAPLTRJ-UHFFFAOYSA-N monothioglycerol Chemical compound OCC(O)CS PJUIMOJAAPLTRJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000006116 polymerization reaction Methods 0.000 claims description 3
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims description 3
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Chemical class C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 2
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Chemical class O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 2
- 239000013522 chelant Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 125000003011 styrenyl group Chemical class [H]\C(*)=C(/[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 claims description 2
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Chemical class OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 2
- 238000011156 evaluation Methods 0.000 abstract description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 229920002284 Cellulose triacetate Polymers 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
Classifications
-
- 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
- C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
- C09J4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09J159/00 - C09J187/00
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a glue composition with good re-peeling property, which relates to the technical field of glue and comprises the following components in parts by weight: 100 parts of acrylic polymer, 5-50 parts of adhesive and 5-30 parts of cross-linking agent; the acrylic polymer is a polymer which is polymerized by carboxyl containing monomers with the weight percentage of 0.1 to 20 percent and has the weight average molecular weight of 50 to 200 ten thousand; the acid value of the adhesive is 1-200 mgKOH/g, the softening point is 75-160 ℃, and the molecule of the adhesive contains at least one aromatic ring compound; the cross-linking agent contains a polyisocyanate compound. Has good peelability, is not easy to generate tilting or falling off after being exposed under high-temperature and high-humidity environment, has good evaluation on light leakage when being used for fixing the polarizing plate, and can maintain high transparency even being exposed under high-temperature and high-humidity environment.
Description
Technical Field
The invention relates to the technical field of glue, in particular to a glue composition with good re-peeling property.
Background
Display devices such as liquid crystal displays used in various devices such as home appliances and business appliances including electronic computers, electronic watches, mobile phones, and televisions are gradually becoming larger in size, and particularly, the liquid crystal televisions and plasma televisions are becoming larger in size. In addition, in recent years, touch panel type liquid crystal displays such as smart phones and tablet personal computers have rapidly spread, and further expansion of the market is expected in the future. On the other hand, liquid crystal displays are also used in vehicle-mounted devices such as car navigation systems, and are required to be used in a severe vehicle interior environment of high temperature and high humidity. In addition, liquid crystal displays are manufactured by attaching liquid crystal elements using glass or plastic to a polarizing plate, a retardation plate, or the like having various optical functions by using glue. The polarizing plate is generally a laminate in which a polyvinyl alcohol film is sandwiched between cellulose triacetate films or microscopic ethylene hydrogen nitride films. Further, since these films have different dimensional change rates when heated due to their different mechanical properties, the laminate is often bent if left in a high-temperature environment.
Disclosure of Invention
The present invention has been made to solve the problems and disadvantages of the prior art, and an object of the present invention is to provide a properly designed glue composition having good re-peelability, good peelability, less tendency to lift or fall off after exposure to high temperature and high humidity, good evaluation of light leakage when used for fixing a polarizing plate, and high transparency even when exposed to high temperature and high humidity.
In order to achieve the purpose, the invention adopts the following technical scheme: the composition comprises the following components in parts by weight: 100 parts of acrylic polymer, 5-50 parts of adhesive and 5-30 parts of cross-linking agent; the acrylic polymer is a polymer which is polymerized by carboxyl containing monomers with the weight percentage of 0.1 to 20 percent and has the weight average molecular weight of 50 to 200 ten thousand; the acid value of the adhesive is 1-200 mgKOH/g, the softening point is 75-160 ℃, and the molecule of the adhesive contains at least one aromatic ring compound; the cross-linking agent contains a polyisocyanate compound.
The aromatic ring compound is one or more selected from the group consisting of acrylic compounds, rosin compounds and styrene compounds.
Further, the crosslinking agent is an aromatic aliphatic polyisocyanate compound.
Further, the glue also comprises a metal chelate.
The preparation steps of the invention are as follows:
the following components in parts by weight are added into a reactor which is matched with a stirrer, a thermometer, a reflux cooling pipe, a dripping device and a nitrogen inlet pipe: 99.9 parts of butyl acrylate, 0.1 part of acrylic acid, 100 parts of ethyl acetate and 0.025 part of azodiisobutyronitrile; replacing the air in the reaction container with nitrogen; then, stirring the mixture in a nitrogen environment, heating the mixture to 80 ℃ to start reaction, and reacting the reaction solution at a reflux temperature for 7 hours; cooling after the reaction is finished, and diluting with ethyl acetate to obtain a polymer solution with the non-volatility of 30% and the viscosity of 3000mPa and seeds; further, the weight average molecular weight (Mw) of the acrylic polymer was determined by GPC, and the weight average molecular weight was 100 ten thousand, thereby obtaining an acrylic polymer;
the following components in parts by weight are added into a reactor which is matched with a stirrer, a thermometer, a reflux cooling pipe, a dripping device and a nitrogen inlet pipe: 20 parts of butyl acrylate, 75 parts of benzyl acrylate, 5 parts of acrylic acid, 100 parts of toluene, 5 parts of 1-thioglycerol and 0.5 part of azodiisobutyronitrile, and replacing air in the reactor with nitrogen; then, stirring the mixture in a nitrogen environment, and heating the mixture to 110 ℃ to start reaction; the reaction solution was then reacted at reflux temperature for 7 hours; after the reaction is finished, cooling, and diluting with ethyl acetate to obtain a polymerization solution which is nonvolatile by 50% and has the viscosity of 1000mPa and seeds; in addition, the weight average molecular weight (Mw) of the acrylic polymer was determined using GPC, and the weight average molecular weight was 1500; in addition, the acid value of the obtained acrylic polymer was 40mg/KOH, and the softening point was 90 ℃; obtaining an acrylic compound used as an adhesive;
the components in parts by weight are as follows: 100 parts of acrylic polymer, 10 parts of acrylic compound as adhesive and 10 parts of cross-linking agent, wherein the cross-linking agent is prepared by adding polyisocyanate compound and trimethylolpropane of toluene diisocyanate, and ethyl acetate is added to adjust the non-volatile component to 20 percent, thereby obtaining the glue.
After the components are adopted, the invention has the beneficial effects that: the invention provides a glue composition with good re-stripping performance, which has good stripping performance, is not easy to warp or fall off after being exposed under high-temperature and high-humidity environment, has good light leakage evaluation when being used for fixing a polarizing plate, and can maintain high transparency even being exposed under the high-temperature and high-humidity environment.
The specific implementation mode is as follows:
the specific implementation mode adopts the following technical scheme: it comprises an acrylic polymer, a binder and a crosslinking agent;
the following components in parts by weight are added into a reactor which is matched with a stirrer, a thermometer, a reflux cooling pipe, a dripping device and a nitrogen inlet pipe: 99.9 parts of butyl acrylate, 0.1 part of acrylic acid, 100 parts of ethyl acetate and 0.025 part of azobisisobutyronitrile (hereinafter referred to as azobisisobutyronitrile); replacing the air in the reaction container with nitrogen; then, stirring the mixture in a nitrogen environment, heating the mixture to 80 ℃ to start reaction, and reacting the reaction solution at a reflux temperature for 7 hours; cooling after the reaction is finished, and diluting with ethyl acetate to obtain a polymer solution with the non-volatility of 30% and the viscosity of 3000mPa and seeds; further, the weight average molecular weight (Mw) of the acrylic polymer was determined by GPC, and the weight average molecular weight was 100 ten thousand, thereby obtaining an acrylic polymer;
the following components in parts by weight are added into a reactor which is matched with a stirrer, a thermometer, a reflux cooling pipe, a dripping device and a nitrogen inlet pipe: 20 parts of butyl acrylate, 75 parts of benzyl acrylate, 5 parts of acrylic acid, 100 parts of toluene, 5 parts of 1-thioglycerol and 0.5 part of azodiisobutyronitrile, and replacing air in the reactor with nitrogen; then, stirring the mixture in a nitrogen environment, and heating the mixture to 110 ℃ to start reaction; the reaction solution was then reacted at reflux temperature for 7 hours; after the reaction is finished, cooling, and diluting with ethyl acetate to obtain a polymerization solution which is nonvolatile by 50% and has the viscosity of 1000mPa and seeds; in addition, the weight average molecular weight (Mw) of the acrylic polymer was determined using GPC, and the weight average molecular weight was 1500; in addition, the acid value of the obtained acrylic polymer was 40mg/KOH, and the softening point was 90 ℃; obtaining an acrylic compound used as an adhesive;
the components in parts by weight are as follows: 100 parts of acrylic polymer, 10 parts of acrylic compound as adhesive and 10 parts of cross-linking agent, wherein the cross-linking agent is prepared by adding polyisocyanate compound and trimethylolpropane of toluene diisocyanate, and ethyl acetate is added to adjust the non-volatile component to 20 percent, thereby obtaining the glue.
After the components are adopted, the beneficial effects of the specific embodiment are as follows: the present embodiment provides a glue composition having good re-peelability, having good peelability, being less likely to be warped or peeled off after being exposed under a high-temperature and high-humidity environment, and being good in evaluation of light leakage when used for fixing a polarizing plate, and maintaining high transparency even when being exposed under a high-temperature and high-humidity environment.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (5)
1. A glue composition with good re-peeling performance is characterized in that: the composition comprises the following components in parts by weight: 100 parts of acrylic polymer, 5-50 parts of adhesive and 5-30 parts of cross-linking agent; the acrylic polymer is a polymer which is polymerized by carboxyl containing monomers with the weight percentage of 0.1 to 20 percent and has the weight average molecular weight of 50 to 200 ten thousand; the acid value of the adhesive is 1-200 mgKOH/g, the softening point is 75-160 ℃, and the molecule of the adhesive contains at least one aromatic ring compound; the cross-linking agent contains a polyisocyanate compound.
2. The glue composition with good removability as claimed in claim 1, wherein: the aromatic ring compound is one or more of acrylic acid compounds, rosin compounds and styrene compounds.
3. The glue composition with good removability as claimed in claim 1, wherein: the cross-linking agent is an aromatic aliphatic polyisocyanate compound.
4. The glue composition with good removability as claimed in claim 1, wherein: the glue also comprises a metal chelate.
5. A glue composition with good re-peeling performance is characterized in that: the preparation method comprises the following steps:
the following components in parts by weight are added into a reactor which is matched with a stirrer, a thermometer, a reflux cooling pipe, a dripping device and a nitrogen inlet pipe: 99.9 parts of butyl acrylate, 0.1 part of acrylic acid, 100 parts of ethyl acetate and 0.025 part of azodiisobutyronitrile; replacing the air in the reaction container with nitrogen; then, stirring the mixture in a nitrogen environment, heating the mixture to 80 ℃ to start reaction, and reacting the reaction solution at a reflux temperature for 7 hours; cooling after the reaction is finished, and diluting with ethyl acetate to obtain a polymer solution with the non-volatility of 30% and the viscosity of 3000mPa and seeds; further, the weight average molecular weight of the acrylic polymer was determined by GPC, and the weight average molecular weight was 100 ten thousand, thereby obtaining an acrylic polymer;
the following components in parts by weight are added into a reactor which is matched with a stirrer, a thermometer, a reflux cooling pipe, a dripping device and a nitrogen inlet pipe: 20 parts of butyl acrylate, 75 parts of benzyl acrylate, 5 parts of acrylic acid, 100 parts of toluene, 5 parts of 1-thioglycerol and 0.5 part of azodiisobutyronitrile, and replacing air in the reactor with nitrogen; then, stirring the mixture in a nitrogen environment, and heating the mixture to 110 ℃ to start reaction; the reaction solution was then reacted at reflux temperature for 7 hours; after the reaction is finished, cooling, and diluting with ethyl acetate to obtain a polymerization solution which is nonvolatile by 50% and has the viscosity of 1000mPa and seeds; in addition, the weight average molecular weight of the acrylic polymer was determined using GPC, and the weight average molecular weight was 1500; in addition, the acid value of the obtained acrylic polymer was 40mg/KOH, and the softening point was 90 ℃; obtaining an acrylic compound used as an adhesive;
the components in parts by weight are as follows: 100 parts of acrylic polymer, 10 parts of acrylic compound as adhesive and 10 parts of cross-linking agent, wherein the cross-linking agent is prepared by adding polyisocyanate compound and trimethylolpropane of toluene diisocyanate, and ethyl acetate is added to adjust the non-volatile component to 20 percent, thereby obtaining the glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111041103.9A CN113755101A (en) | 2021-09-07 | 2021-09-07 | Glue composition with good re-peeling property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111041103.9A CN113755101A (en) | 2021-09-07 | 2021-09-07 | Glue composition with good re-peeling property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113755101A true CN113755101A (en) | 2021-12-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111041103.9A Pending CN113755101A (en) | 2021-09-07 | 2021-09-07 | Glue composition with good re-peeling property |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113755101A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114656903A (en) * | 2022-04-28 | 2022-06-24 | 常州都铂高分子有限公司 | Glue with good re-peeling performance |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101313043A (en) * | 2005-11-21 | 2008-11-26 | 综研化学株式会社 | Adhesive composition for optical film, adhesive sheet, and optical member using such adhesive composition |
| CN102686689A (en) * | 2009-11-17 | 2012-09-19 | 综研化学株式会社 | Adhesive composition for polarizing plate and polarizing plate using the same |
| CN104031582A (en) * | 2013-03-04 | 2014-09-10 | 琳得科株式会社 | Pressure-sensitive adhesive combination, pressure-sensitive adhesive, and pressure-sensitive adhesive sheet |
-
2021
- 2021-09-07 CN CN202111041103.9A patent/CN113755101A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101313043A (en) * | 2005-11-21 | 2008-11-26 | 综研化学株式会社 | Adhesive composition for optical film, adhesive sheet, and optical member using such adhesive composition |
| CN102686689A (en) * | 2009-11-17 | 2012-09-19 | 综研化学株式会社 | Adhesive composition for polarizing plate and polarizing plate using the same |
| CN104031582A (en) * | 2013-03-04 | 2014-09-10 | 琳得科株式会社 | Pressure-sensitive adhesive combination, pressure-sensitive adhesive, and pressure-sensitive adhesive sheet |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114656903A (en) * | 2022-04-28 | 2022-06-24 | 常州都铂高分子有限公司 | Glue with good re-peeling performance |
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Application publication date: 20211207 |