CN103642409A - OCA (Optical Clear Adhesive) tape - Google Patents
OCA (Optical Clear Adhesive) tape Download PDFInfo
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- CN103642409A CN103642409A CN201310612903.0A CN201310612903A CN103642409A CN 103642409 A CN103642409 A CN 103642409A CN 201310612903 A CN201310612903 A CN 201310612903A CN 103642409 A CN103642409 A CN 103642409A
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Abstract
The invention relates to an OCA (Optical Clear Adhesive) tape which sequentially comprises a light stripping PET (Poly Ethylene Terephthalate) release film layer, an OCA layer and a heavy stripping PET release film layer from top to bottom. The optical adhesive comprises the following components in parts by weight: 100 parts of acrylate adhesive, 3 parts of thickener, 0.5 parts of coupling agent, 3 parts of plasticizer and 0.1 parts of stabilizer. The OCA tape provided by the invention has better adhesive performance to various materials such as SUS plates, acrylic plates and glass plates. The OCA tape is better in transmission of light, and can be used for solving the technical problems that pollution is easily caused and the operation is inconvenient because bubbles are easily generated due to solidification and contraction of an existing liquid optical clear adhesive (LOCA) which has difficulty in thickness control in the market.
Description
Technical field
The present invention relates generally to a kind of OCA optics adhesive tape, and particularly a kind of can all have to unorganic glass and organic plastics sheet the OCA optics adhesive tape of better adhesive property.
Background technology
The optics sizing agent of OCA optics adhesive tape is the extraordinary sizing agent for cementing transparent optical element, feature be water white transparency, light transmission rate more than 90%, consolidation strength is good, can under room temperature or middle temperature, solidify and have the features such as cure shrinkage is little, is mainly used in the bonding of ITO film, Electronic Paper, transparent devices, projection screen assembling, indicating meter assembling, lens assembling, resistive touch screen, capacitive touch screen, panel and other associated electrical optical instruments etc.Optics sizing agent differences different due to the starting material that use or starting material preparation metering of the same race cause it of a great variety, the major ingredient that preparation optics sizing agent is used has: organo-silicone rubber, urethane, epoxy resin, acrylic type resin and unsaturated polyester etc., when preparation, conventionally to add some auxiliary materials, to improve its optical property or to reduce cure shrinkage, these transparent auxiliary materials can be guaranteed transparent and sufficient display brightness, and durable adhesive effect is provided.Acrylic ester sizing agent is easy to use, and curing speed is fast, is convenient to the advantages such as streamline production, and its adaptive surface is wider, multiple material is had to good bond performance, and its electrical insulation properties is better, is therefore very suitable for using as the optics sizing agent of OCA optics adhesive tape.But the shortcoming of acrylic ester sizing agent is also obvious.First, the thermotolerance of acrylic ester sizing agent is poor, and solidifies and to be difficult to use in rapidly large-area splicing, and institute is in addition thickening not, difficultly for filling, glueds joint.
Summary of the invention
The object of this invention is to provide all OCA optics adhesive tapes of excellence of a kind of thermotolerance, bond performance.
Technical scheme of the present invention is: described OCA optics adhesive tape is followed successively by from top to bottom gently to be peeled off PET release film layer, optics glue-line and heavily peels off PET release film layer,, described optical cement comprises that following weight forms: acrylic ester sizing agent: 100; Thickening material: 3; Coupling agent: 0.5; Dibutylester: 3; Stablizer: 0.1.
As an embodiment of the present invention, described acrylic ester sizing agent is cyanoacrylate.
Further, the glutinous agent of described thickening material can be selected poly-propionic acid fat, polybutylcyanoacrylate or its mixture.
Further, described coupling agent is KH-550.
Further, described softening agent is one or more the mixture in dibutylester, front three phenolic ester, phosphoric acid.
Further, described stablizer is one or both mixture of venus crystals, Resorcinol.
Acrylic ester sizing agent is easy to use, and curing speed is fast, be convenient to the advantages such as streamline production, and its adaptive surface is wider, and multiple material is had to good bond performance, and its electrical insulation properties is better.But its shortcoming is also obvious.First, the thermotolerance of acrylic ester sizing agent is poor, and the product of non-modified generally can only be 70 degrees Celsius of following uses.And solidify and to be difficult to use in rapidly large-area splicing, institute is in addition thickening not, difficultly for filling, glueds joint.Therefore, the present invention adopts KH-550 as coupling agent, and cyanoacrylate is carried out to modification, increases its resistance toheat; Adopt poly-propionic acid fat, polybutylcyanoacrylate or its mixture, as thickening material, cyanoacrylate is carried out to thickening, the mixture of one or more in use dibutylester, front three phenolic ester, phosphoric acid carries out plasticising as softening agent cyanoacrylate, improve the glue-line fragility after solidifying, improve the shock strength of glue-line.In order to prevent cyanoacrylate monomer polymerization, the present invention adopts one or both mixture of venus crystals, Resorcinol as stablizer, and cyanoacrylate is carried out to plasticising, and meanwhile, softening agent can improve the thermotolerance of sizing agent system to a certain extent.
To OCV optics adhesive tape of the present invention, multiple material is all had to preferably bond performance, as SUS plate, acrylic board, sheet glass etc., and described OCV optics adhesive tape light transmission is better, solved the liquid optical cement (LOCA) existing on market, due to the bad control of thickness, thereby cure shrinkage easily produces bubble.And easily pollute the technical problem of inconvenient operation.
Embodiment
Below in conjunction with series of experiments example, the present invention is described further:
Experimental example 1
Formula: cyanoacrylate: 100; Polybutylcyanoacrylate: 3; KH-550:0.5; Dibutylester: 3; Venus crystals: 0.1.
Experimental example 2
Formula: acrylic ester sizing agent: 100; Polybutylcyanoacrylate: 3; KH-550:0.5; Front three phenolic ester: 3; Venus crystals: 0.1.
Experimental example 3
Formula: acrylic ester sizing agent: 100; Acrylate: 3; KH-550:0.5; Dibutylester: 3; Venus crystals: 0.1.
Experimental example 4
Formula: acrylic ester sizing agent: 100; Acrylate: 3; KH-550:0.5; Front three phenolic ester: 3; Venus crystals: 0.1.
Experimental example 5
Formula: acrylic ester sizing agent: 100; Acrylate: 3; KH-550:0.5; Front three phenolic ester: 3; Resorcinol: 0.1.
Experimental example 6
Formula: formula: acrylic ester sizing agent: 100; Acrylate: 3; KH-550:0.5; Dibutylester: 3; Resorcinol: 0.1.
According to the prepared sizing agent mixture of experimental example 1 ~ experimental example 6 formula, be coated on and heavily peel off in PET release film aspect, gauge control is at 0.05 millimeter positive and negative 0.003 millimeter.Dry 5min at 80 ℃, fits with gently peeling off the release face of PET afterwards, then is placed in the baking oven maturation 2 days of 50 ℃, obtains 1# ~ 6# anacidity OCA optical cement carry sample.
OCA optics adhesive tape of the present invention is followed successively by from top to bottom gently to be peeled off PET release film layer, optics glue-line and heavily peels off PET release film layer.
This formula OCA optical cement band is carried out to the performance test results as follows:
OCV optics adhesive tape of the present invention, multiple material is all had to preferably bond performance, as SUS plate, acrylic board, sheet glass etc., and described OCV optics adhesive tape light transmission is better, solved the liquid optical cement (LOCA) existing on market, due to the bad control of thickness, thereby cure shrinkage easily produces bubble.And easily pollute, the technical problem of inconvenient operation, and thermotolerance is better, and under 80 celsius temperatures, confining force is all greater than 100 hours, solves the poor problem of common acrylic acid series optical cement thermotolerance.
Above-described embodiment is only explanation technical conceive of the present invention and feature, and its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that spirit is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (6)
1. an OCA optics adhesive tape, is characterized in that, described OCA optics adhesive tape is followed successively by from top to bottom gently to be peeled off PET release film layer, optics glue-line and heavily peels off PET release film layer,, described optical cement comprises that following weight forms: acrylic ester sizing agent: 100; Thickening material: 3; Coupling agent: 0.5; Softening agent: 3; Stablizer: 0.1.
2. OCA optics adhesive tape as claimed in claim 1, is characterized in that, described acrylic ester sizing agent is cyanoacrylate.
3. OCA optics adhesive tape as claimed in claim 1, is characterized in that, the glutinous agent of described thickening material can be selected poly-propionic acid fat, polybutylcyanoacrylate or its mixture.
4. OCA optics adhesive tape as claimed in claim 1, is characterized in that, described coupling agent is KH-550.
5. OCA optics adhesive tape as claimed in claim 1, is characterized in that, described softening agent is one or more the mixture in dibutylester, front three phenolic ester, phosphoric acid.
6. OCA optics adhesive tape as claimed in claim 1, is characterized in that, described stablizer is one or both mixture of venus crystals, Resorcinol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310612903.0A CN103642409A (en) | 2013-11-27 | 2013-11-27 | OCA (Optical Clear Adhesive) tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310612903.0A CN103642409A (en) | 2013-11-27 | 2013-11-27 | OCA (Optical Clear Adhesive) tape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103642409A true CN103642409A (en) | 2014-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310612903.0A Pending CN103642409A (en) | 2013-11-27 | 2013-11-27 | OCA (Optical Clear Adhesive) tape |
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| CN (1) | CN103642409A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104449432A (en) * | 2014-11-06 | 2015-03-25 | 东莞创先新材料科技有限公司 | OCA (optical clear adhesive) film and production process thereof |
| CN104962043A (en) * | 2015-05-29 | 2015-10-07 | 吉翔宝（太仓）离型材料科技发展有限公司 | PET photodiffusion release film |
| CN105038623A (en) * | 2015-07-13 | 2015-11-11 | 南昌欧菲光科技有限公司 | Transparent optical glue film with dispersed liquid crystals and preparation method |
| CN105295758A (en) * | 2015-10-14 | 2016-02-03 | 东莞市纳利光学材料有限公司 | Optical film with multiple composite OCA (Optical Clear Adhesive) layers and preparation method of optical film |
| CN105778791A (en) * | 2014-12-22 | 2016-07-20 | 常熟市良益胶带工业有限公司 | OCA optical adhesive tape |
| CN107699147A (en) * | 2017-10-30 | 2018-02-16 | 深圳市西陆光电技术有限公司 | A kind of preparation method of OCA optical cements for OLED |
| CN107880790A (en) * | 2017-11-29 | 2018-04-06 | 深圳市东魔科技有限公司 | Glue composition |
| CN112210311A (en) * | 2020-09-11 | 2021-01-12 | 衡阳华灏新材料科技有限公司 | Tape type flip chip COF chip back adhesive tearing material |
| CN112680120A (en) * | 2020-12-31 | 2021-04-20 | 杭州电子科技大学 | Material for processing optical element and preparation method thereof |
| CN113916343A (en) * | 2021-09-15 | 2022-01-11 | 惠州市开蒙医疗科技有限公司 | Method for connecting transparent glass scale surface and metal decorative sheet for electronic scale and electronic scale |
| CN115011259A (en) * | 2022-06-17 | 2022-09-06 | 国网江苏省电力有限公司南京供电分公司 | Quick-drying strong-adhesion insulating glue and preparation method thereof |
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| US20110074279A1 (en) * | 2008-12-16 | 2011-03-31 | Tesa Se | Self-adhesive base polymer for electroluminescence masses |
| CN203065389U (en) * | 2012-12-12 | 2013-07-17 | 深圳市欣恒坤科技有限公司 | Optical clear adhesive (OCA) tape for capacitive touch screen |
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2013
- 2013-11-27 CN CN201310612903.0A patent/CN103642409A/en active Pending
Patent Citations (2)
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| US20110074279A1 (en) * | 2008-12-16 | 2011-03-31 | Tesa Se | Self-adhesive base polymer for electroluminescence masses |
| CN203065389U (en) * | 2012-12-12 | 2013-07-17 | 深圳市欣恒坤科技有限公司 | Optical clear adhesive (OCA) tape for capacitive touch screen |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104449432A (en) * | 2014-11-06 | 2015-03-25 | 东莞创先新材料科技有限公司 | OCA (optical clear adhesive) film and production process thereof |
| CN105778791A (en) * | 2014-12-22 | 2016-07-20 | 常熟市良益胶带工业有限公司 | OCA optical adhesive tape |
| CN104962043A (en) * | 2015-05-29 | 2015-10-07 | 吉翔宝（太仓）离型材料科技发展有限公司 | PET photodiffusion release film |
| CN105038623A (en) * | 2015-07-13 | 2015-11-11 | 南昌欧菲光科技有限公司 | Transparent optical glue film with dispersed liquid crystals and preparation method |
| CN105295758A (en) * | 2015-10-14 | 2016-02-03 | 东莞市纳利光学材料有限公司 | Optical film with multiple composite OCA (Optical Clear Adhesive) layers and preparation method of optical film |
| CN105295758B (en) * | 2015-10-14 | 2018-01-23 | 东莞市纳利光学材料有限公司 | A kind of optical film with MULTILAYER COMPOSITE OCA glue-lines and preparation method thereof |
| CN107699147A (en) * | 2017-10-30 | 2018-02-16 | 深圳市西陆光电技术有限公司 | A kind of preparation method of OCA optical cements for OLED |
| CN107880790A (en) * | 2017-11-29 | 2018-04-06 | 深圳市东魔科技有限公司 | Glue composition |
| CN112210311A (en) * | 2020-09-11 | 2021-01-12 | 衡阳华灏新材料科技有限公司 | Tape type flip chip COF chip back adhesive tearing material |
| CN112680120A (en) * | 2020-12-31 | 2021-04-20 | 杭州电子科技大学 | Material for processing optical element and preparation method thereof |
| CN113916343A (en) * | 2021-09-15 | 2022-01-11 | 惠州市开蒙医疗科技有限公司 | Method for connecting transparent glass scale surface and metal decorative sheet for electronic scale and electronic scale |
| CN113916343B (en) * | 2021-09-15 | 2023-12-22 | 惠州市开蒙医疗科技有限公司 | Method for connecting transparent glass scale surface and metal decorative sheet for electronic scale and electronic scale |
| CN115011259A (en) * | 2022-06-17 | 2022-09-06 | 国网江苏省电力有限公司南京供电分公司 | Quick-drying strong-adhesion insulating glue and preparation method thereof |
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Application publication date: 20140319 |