CN104650780A - Adhesive for optical thin film - Google Patents
Adhesive for optical thin film Download PDFInfo
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- CN104650780A CN104650780A CN201510063383.1A CN201510063383A CN104650780A CN 104650780 A CN104650780 A CN 104650780A CN 201510063383 A CN201510063383 A CN 201510063383A CN 104650780 A CN104650780 A CN 104650780A
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- Prior art keywords
- adhesive
- weight part
- emulsion
- acrylate
- acrylate monomer
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- 239000000853 adhesive Substances 0.000 title claims abstract description 19
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 19
- 230000003287 optical effect Effects 0.000 title abstract description 10
- 239000010409 thin film Substances 0.000 title abstract description 8
- 239000000839 emulsion Substances 0.000 claims abstract description 27
- 239000000203 mixture Substances 0.000 claims abstract description 27
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims abstract description 23
- 239000000178 monomer Substances 0.000 claims abstract description 21
- 239000004814 polyurethane Substances 0.000 claims abstract description 15
- 229920002635 polyurethane Polymers 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000012153 distilled water Substances 0.000 claims abstract description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 14
- 229920000642 polymer Polymers 0.000 claims description 11
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 8
- 239000012788 optical film Substances 0.000 claims description 8
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 7
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 claims description 7
- 229920000570 polyether Polymers 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 238000003786 synthesis reaction Methods 0.000 claims description 6
- ZEMPKEQAKRGZGQ-AAKVHIHISA-N 2,3-bis[[(z)-12-hydroxyoctadec-9-enoyl]oxy]propyl (z)-12-hydroxyoctadec-9-enoate Chemical compound CCCCCCC(O)C\C=C/CCCCCCCC(=O)OCC(OC(=O)CCCCCCC\C=C/CC(O)CCCCCC)COC(=O)CCCCCCC\C=C/CC(O)CCCCCC ZEMPKEQAKRGZGQ-AAKVHIHISA-N 0.000 claims description 5
- 239000004970 Chain extender Substances 0.000 claims description 5
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 claims description 5
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 5
- 239000003054 catalyst Substances 0.000 claims description 5
- AYOHIQLKSOJJQH-UHFFFAOYSA-N dibutyltin Chemical compound CCCC[Sn]CCCC AYOHIQLKSOJJQH-UHFFFAOYSA-N 0.000 claims description 5
- 239000006185 dispersion Substances 0.000 claims description 5
- 150000002148 esters Chemical class 0.000 claims description 5
- 239000003999 initiator Substances 0.000 claims description 5
- 150000002902 organometallic compounds Chemical class 0.000 claims description 5
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 claims description 5
- VVWRJUBEIPHGQF-UHFFFAOYSA-N propan-2-yl n-propan-2-yloxycarbonyliminocarbamate Chemical compound CC(C)OC(=O)N=NC(=O)OC(C)C VVWRJUBEIPHGQF-UHFFFAOYSA-N 0.000 claims description 5
- 150000003384 small molecules Chemical group 0.000 claims description 5
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical group CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims description 5
- GWZMWHWAWHPNHN-UHFFFAOYSA-N 2-hydroxypropyl prop-2-enoate Chemical compound CC(O)COC(=O)C=C GWZMWHWAWHPNHN-UHFFFAOYSA-N 0.000 claims description 4
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 claims description 4
- 125000005442 diisocyanate group Chemical group 0.000 claims description 2
- 239000012467 final product Substances 0.000 claims description 2
- 238000006116 polymerization reaction Methods 0.000 abstract description 9
- 239000003960 organic solvent Substances 0.000 abstract description 4
- 238000002360 preparation method Methods 0.000 abstract description 2
- 230000032683 aging Effects 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000002194 synthesizing effect Effects 0.000 abstract 1
- 239000003292 glue Substances 0.000 description 9
- 239000007787 solid Substances 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- 238000004132 cross linking Methods 0.000 description 5
- 239000010408 film Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 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 description 3
- VHSHLMUCYSAUQU-UHFFFAOYSA-N 2-hydroxypropyl methacrylate Chemical compound CC(O)COC(=O)C(C)=C VHSHLMUCYSAUQU-UHFFFAOYSA-N 0.000 description 3
- OZAIFHULBGXAKX-VAWYXSNFSA-N AIBN Substances N#CC(C)(C)\N=N\C(C)(C)C#N OZAIFHULBGXAKX-VAWYXSNFSA-N 0.000 description 3
- 229920005822 acrylic binder Polymers 0.000 description 3
- GJCOSYZMQJWQCA-UHFFFAOYSA-N 9H-xanthene Chemical compound C1=CC=C2CC3=CC=CC=C3OC2=C1 GJCOSYZMQJWQCA-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- 229920001285 xanthan gum Polymers 0.000 description 2
- AMULJSVDIHMAOX-UHFFFAOYSA-N 3-hydroxypropyl prop-2-enoate;prop-2-enoic acid Chemical compound OC(=O)C=C.OCCCOC(=O)C=C AMULJSVDIHMAOX-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000005058 Isophorone diisocyanate Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000013039 cover film Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
Landscapes
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses an adhesive for an optical thin film. The adhesive for the optical thin film is prepared according to the following steps: (1) synthesizing a polyurethane system; (2) adding an acrylate monomer mixture in the polyurethane system obtained in the step (1) and then dispersing by adding distilled water in parts by weight, thereby forming a mixture emulsion; (3) performing polymerization, i.e., heating the mixture emulsion to 70-80 DEG C to carry out polymerization for 3-5 hours; and (4) performing aging, i.e., cooling to 35-50 DEG C to carry out curing reaction so monomers fully react to obtain the adhesive after the polymerization reaction is finished. The problem that the acrylate adhesive has hot viscosity and cryogenic brittleness due to influence of temperature is improved through modification of an acrylate adhesive system with polyurethane; the adhesive for the optical thin film disclosed by the invention combines the benefits of the two components, so adhesion is increased, attachment is good, overspill and residues are not generated during use; and in the preparation process of emulsion, an organic solvent is not used, the acrylate monomer replaces the organic solvent, and the acrylate monomer can be subjected to polymerization reaction, and a water-based emulsion adhesive is synthesized.
Description
Technical field
the present invention relates to a kind of adhesive of optical film, it is high molecular polymer, belongs to optical grade polyester cover film adhesive field.
Background technology
In a liquid crystal display, use a lot of film-like materials, as polaroid, diffusion barrier, prism film and all kinds of processing procedure protective membranes etc.In optical film materials, generally use PET, PP as base material, then coating adhesive thereon, enable and base material and the good attaching of affixed object.Optical thin film, in the process used, in order to protective film surface is not damaged, uses special optical protection layer to carry out surface protection with regard to needing.Suitable and stable viscosity, bubble-free or alice, film inclusion-free and brilliant point after laminating.The tackiness agent of current use is commonly acrylic glue system and PU glue system, and acrylic glue system exists the problem of venting quality difference, in the process cut, easily has edge to overflow the bad generation of glue, cull; PU glue system venting quality is good, not cull, but price is higher
Summary of the invention
The object of the present invention is to provide one can by polyurethane-modified polyacrylate glue system, the heat improving the existence of acrylate adhesive temperature influence sticks cold short problem, promote sticking power, make the adhesive of optical film that excessive glue, cull phenomenon do not occur in application process.
A kind of adhesive of optical film of the present invention, adopts following method steps to prepare:
(1) synthesis of polyurethane performed polymer system: take polyether glycol 30-50 weight part, Viscotrol C 5-20 weight part, isocyanic ester 10-30 weight part, small molecule chain extender neopentyl glycol NPG or TriMethylolPropane(TMP) TMP0.5-1.5 weight part and mix and be heated to 70-90 DEG C, adds organometallic compound class catalyst dibutyltin dilaurylate 1-3 weight parts of polymer reaction 3-5 hour;
(2) mixture emulsion: add acrylate monomer blend in step (1) gained polyurethane system, then add the dispersion of distilled water 300-500 weight part, form mixture emulsion; Described acrylate monomer blend is acrylate butyl ester BA50-80 weight part, ethyl acrylate EA20-40 weight part, methyl methacrylate MMA20-40 weight part, acrylate hydroxypropyl acrylate HPMA5-20 weight part, oil-soluble initiator Diisopropyl azodicarboxylate AIBN1-4 weight part;
(3) polyreaction: mixture emulsion is heated to 70-80 DEG C and carries out polyreaction 3-5 hour;
(4) slaking: after polyreaction, cools to 35-50 DEG C and carries out slaking reaction 1-3 hour, makes monomer fully react and get final product.
Preferably, described polyether glycol is N220 or N240.
Preferably, described isocyanic ester is tolylene diisocyanate TDI or isofoer diisocyanate IPDI.
The present invention is by polyurethane-modified polyacrylate glue system, because acrylate adhesive is thermoplastic polymer, linear molecule lacks cross-linking set, be difficult to cross-linked network, therefore its low temperature easily becomes fragile, the easy stickness of high temperature, by polyurethane-modified, in polyacrylic ester xanthan molecule chain, introduce ammonia ester bond, acrylate xanthan molecule and polyurethane molecular carry out cross-linking polymerization, comprehensively both advantage, improve the problem that heat is glutinous cold short, improve sticking power, stickiness is good, and the phenomenon of excessive glue, cull does not occur in use procedure; In emulsion preparation synthesis, not with an organic solvent, acrylate monomer instead of organic solvent, and simultaneously acrylate monomer again can polymerization reaction take place, has synthesized the water-based emulsion bond that a kind of price is low.
Embodiment
Following embodiment further illustrates using as the explaination to the technology of the present invention content for content of the present invention; but flesh and blood of the present invention is not limited in described in following embodiment, those of ordinary skill in the art can and should know any simple change based on connotation of the present invention or replace all should belong to protection domain of the presently claimed invention.
embodiment 1
(1) synthesis of polyurethane performed polymer system: add polyether glycol N220 40 parts, Viscotrol C 15 parts, tolylene diisocyanate TDI 20 parts and small molecule chain extender neopentyl glycol NPG 1 part, 80 DEG C add organometallic compound class catalyst dibutyltin dilaurylate 2 parts of polyreactions 4 hours;
(2) mixture emulsion: add acrylate monomer blend (butyl acrylate BA 60 parts, ethyl propenoate EA30 part, methyl methacrylate MMA 30 parts, Propylene glycol monoacrylate HPMA 10 parts, oil-soluble initiator Diisopropyl azodicarboxylate AIBN 3 parts) to reduce system viscosity, add distilled water 400 parts dispersion, form mixture emulsion;
(3) polyreaction: mixture emulsion is heated to 75 DEG C and carries out polyreaction 4 hours, and acrylate monomer and system carry out polymerization crosslinking reaction;
(4) slaking: after polyreaction, cool to 40 DEG C and carry out slaking reaction 2 hours, monomer is fully reacted, so far synthesized a kind of polymer emulsion and can be used for optical thin film tackiness agent, total solid content 30%-40%, acrylate accounts for the 40-60% of emulsion total solid content.
embodiment 2
(1) synthesis of polyurethane performed polymer system: add polyether glycol N220 30 parts, N240 30 parts, Viscotrol C 5 parts, tolylene diisocyanate TDI 30 parts and small molecule chain extender TriMethylolPropane(TMP) TMP 1.5 parts, 80 DEG C add organometallic compound class catalyst dibutyltin dilaurylate 2 parts of polyreactions 4 hours;
(2) mixture emulsion: add acrylate monomer blend (butyl acrylate BA 80 parts, ethyl propenoate EA40 part, methyl methacrylate MMA 40 parts, Propylene glycol monoacrylate HPMA 5 parts, oil-soluble initiator Diisopropyl azodicarboxylate AIBN 4 parts) to reduce system viscosity, add distilled water 500 parts dispersion, form mixture emulsion;
(3) polyreaction: mixture emulsion is heated to 75 DEG C and carries out polyreaction 4 hours, and acrylate monomer and system carry out polymerization crosslinking reaction;
(4) slaking: after polyreaction, cool to 40 DEG C and carry out slaking reaction 2 hours, monomer is fully reacted, so far synthesized a kind of polymer emulsion and can be used for optical thin film tackiness agent, total solid content 30%-40%, acrylate accounts for the 40-60% of emulsion total solid content.
embodiment 3
(1) synthesis of polyurethane performed polymer system: add polyether glycol N240 50 parts, Viscotrol C 20 parts, tolylene diisocyanate TDI 10 parts and small molecule chain extender neopentyl glycol NPG or TriMethylolPropane(TMP) TMP 1 part, 80 DEG C add organometallic compound class catalyst dibutyltin dilaurylate 2 parts of polyreactions 4 hours;
(2) mixture emulsion: add acrylate monomer blend (butyl acrylate BA 50 parts, ethyl propenoate EA20 part, methyl methacrylate MMA 20 parts, Propylene glycol monoacrylate HPMA 20 parts, oil-soluble initiator Diisopropyl azodicarboxylate AIBN 1 part) to reduce system viscosity, add distilled water 300 parts dispersion, form mixture emulsion;
(3) polyreaction: mixture emulsion is heated to 75 DEG C and carries out polyreaction 4 hours, and acrylate monomer and system carry out polymerization crosslinking reaction;
(4) slaking: after polyreaction, cools to 40 DEG C and carries out slaking reaction, monomer is fully reacted, and so far synthesized a kind of polymer emulsion and can be used for optical thin film tackiness agent, total solid content 30%-40%, acrylate accounts for the 40-60% of emulsion total solid content.
The polyurethane-acrylate tackiness agent prepared by embodiment 1-3 and commercially available acrylic binder, polyurethane binder carry out sticking power test, and sticking power measures and adopts Guangzhou glug to reach the electronic adherometer mensuration of laboratory apparatus articles for use company limited QFD type paint film.Comparing result is as follows:
Table 1. sticking power is tested
| Group | Sticking power |
| Embodiment 1 | 1 grade |
| Embodiment 2 | 0 grade |
| Embodiment 3 | 1 grade |
| Acrylic binder | 3 grades |
| Polyurethane binder | 0 grade |
Remarks: sticking power is according to GB/T 9286, and 0 grade best, and 5 grades the poorest.
As can be seen from comparative test result, the acrylic binder improved by urethane is promoted on adhesion performance, has more excellent sticking power.
Claims (3)
1. an adhesive of optical film, adopts following method steps to prepare:
(1) synthesis of polyurethane performed polymer system: take polyether glycol 30-50 weight part, Viscotrol C 5-20 weight part, isocyanic ester 10-30 weight part, small molecule chain extender neopentyl glycol or TriMethylolPropane(TMP) 0.5-1.5 weight part and mix and be heated to 70-90 DEG C, adds organometallic compound class catalyst dibutyltin dilaurylate 1-3 weight parts of polymer reaction 3-5 hour;
(2) mixture emulsion: add acrylate monomer blend in step (1) gained polyurethane system, then add the dispersion of distilled water 300-500 weight part, form mixture emulsion; Described acrylate monomer blend is butyl acrylate 50-80 weight part, ethyl propenoate 20-40 weight part, methyl methacrylate 20-40 weight part, Propylene glycol monoacrylate 5-20 weight part, oil-soluble initiator Diisopropyl azodicarboxylate 1-4 weight part;
(3) polyreaction: mixture emulsion is heated to 70-80 DEG C and carries out polyreaction 3-5 hour;
(4) slaking: after polyreaction, cools to 35-50 DEG C and carries out slaking reaction, makes monomer fully react and get final product.
2. adhesive of optical film as claimed in claim 1, it is characterized in that, described polyether glycol is N220 and/or N240.
3. adhesive of optical film as claimed in claim 1, it is characterized in that, described isocyanic ester is tolylene diisocyanate and/or isofoer diisocyanate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510063383.1A CN104650780B (en) | 2015-02-06 | 2015-02-06 | Adhesive for optical thin film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510063383.1A CN104650780B (en) | 2015-02-06 | 2015-02-06 | Adhesive for optical thin film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104650780A true CN104650780A (en) | 2015-05-27 |
| CN104650780B CN104650780B (en) | 2017-02-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510063383.1A Expired - Fee Related CN104650780B (en) | 2015-02-06 | 2015-02-06 | Adhesive for optical thin film |
Country Status (1)
| Country | Link |
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| CN (1) | CN104650780B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107987249A (en) * | 2017-12-06 | 2018-05-04 | 中国建筑材料科学研究总院有限公司 | Makrolon and polymethyl methacrylate layers close adhering resin, preparation method and applications |
| CN108070050A (en) * | 2016-11-11 | 2018-05-25 | 宁波激智科技股份有限公司 | A kind of diffusion particle and preparation method thereof |
| CN112358575A (en) * | 2020-10-29 | 2021-02-12 | 上海世壮新能源科技有限公司 | Environment-friendly polyurethane-acrylate hybrid emulsion and preparation method thereof |
| CN114106748A (en) * | 2021-12-27 | 2022-03-01 | 东莞市合裕粘贴制品有限公司 | Low-viscosity aqueous polyurethane adhesive emulsion and preparation method thereof |
| CN114380954A (en) * | 2021-12-29 | 2022-04-22 | 浩力森涂料（上海）有限公司 | Polyurethane modified water-based acrylic resin coating and preparation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109207111A (en) * | 2018-07-20 | 2019-01-15 | 安徽匠星联创新材料科技有限公司 | A kind of one-component polyurethane sealant and preparation method thereof |
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| CN102115518A (en) * | 2011-01-04 | 2011-07-06 | 合肥市科天化工有限公司 | Solvent-free water polyurethane-acrylic ester resin for binding material of synthetic leather and preparation method thereof |
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2015
- 2015-02-06 CN CN201510063383.1A patent/CN104650780B/en not_active Expired - Fee Related
Patent Citations (1)
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| CN102115518A (en) * | 2011-01-04 | 2011-07-06 | 合肥市科天化工有限公司 | Solvent-free water polyurethane-acrylic ester resin for binding material of synthetic leather and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108070050A (en) * | 2016-11-11 | 2018-05-25 | 宁波激智科技股份有限公司 | A kind of diffusion particle and preparation method thereof |
| CN107987249A (en) * | 2017-12-06 | 2018-05-04 | 中国建筑材料科学研究总院有限公司 | Makrolon and polymethyl methacrylate layers close adhering resin, preparation method and applications |
| CN112358575A (en) * | 2020-10-29 | 2021-02-12 | 上海世壮新能源科技有限公司 | Environment-friendly polyurethane-acrylate hybrid emulsion and preparation method thereof |
| CN112358575B (en) * | 2020-10-29 | 2023-08-15 | 上海世壮新能源科技有限公司 | Environment-friendly polyurethane-acrylate hybrid emulsion and preparation method thereof |
| CN114106748A (en) * | 2021-12-27 | 2022-03-01 | 东莞市合裕粘贴制品有限公司 | Low-viscosity aqueous polyurethane adhesive emulsion and preparation method thereof |
| CN114380954A (en) * | 2021-12-29 | 2022-04-22 | 浩力森涂料（上海）有限公司 | Polyurethane modified water-based acrylic resin coating and preparation method thereof |
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| CN104650780B (en) | 2017-02-01 |
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Denomination of invention: Adhesive for optical thin film Effective date of registration: 20191029 Granted publication date: 20170201 Pledgee: Anhui Changfeng rural commercial bank Limited by Share Ltd. new Bengbu Road Branch Pledgor: HANBO HIGH-NEW MATERIAL (HEFEI) Co.,Ltd. Registration number: Y2019340000154 |
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Date of cancellation: 20200916 Granted publication date: 20170201 Pledgee: Anhui Changfeng rural commercial bank Limited by Share Ltd. new Bengbu Road Branch Pledgor: HANBO HIGH-NEW MATERIAL (HEFEI) Co.,Ltd. Registration number: Y2019340000154 |
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