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Optical adhesive layer, preparation method thereof, optical adhesive and flexible display device

A flexible display device, optical adhesive technology, applied in the direction of adhesive types, ester copolymer adhesives, film/sheet adhesives, etc., can solve problems such as poor environmental protection, achieve low environmental pollution, The effect of good film formation and good curl resistance

Inactive Publication Date: 2021-01-22
SUZHOU SIDIKE NEW MATERIALS SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Most of the existing OCA optical adhesives are solvent-based optical adhesives. Since organic solvents such as toluene and ethyl acetate are used for synthesis, the environmental protection is poor

Method used

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  • Optical adhesive layer, preparation method thereof, optical adhesive and flexible display device
  • Optical adhesive layer, preparation method thereof, optical adhesive and flexible display device

Examples

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Embodiment Construction

[0035] Below in conjunction with the examples, the specific implementation of the present invention will be further described in detail. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0036] The "(meth)acrylate polymer" described in the present invention should be understood as "acrylate polymer" and / or "(meth)acrylate polymer"; the "(meth)acrylate monomer " should be understood as "acrylate monomer" and / or "(meth)acrylate monomer".

[0037] As the optical adhesive layer in the present invention, it should contain at least a (meth)acrylate polymer and additives; the additives may be crosslinking agents, tackifiers, coupling agents, and ionic compounds. Based on 100 parts by weight of the (meth)acrylate polymer, the additive should contain 0.01-20 parts by weight.

[0038] Examples of the alkyl (meth)acrylate constituting the main skeleton of the (meth)acrylate polymer include linear or ...

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Abstract

The invention discloses an optical adhesive layer and a preparation method thereof, and belongs to the technical field of polymer synthesis. Specifically, the optical adhesive layer contains an ultra-high molecular weight (meth) acrylate polymer and an additive, wherein based on 100 parts by weight of the (methyl) acrylate polymer, the weight of the additive is 0.01-20 part by weight; the (methyl)acrylate polymer is prepared by adopting an emulsion polymerization method, and the weight-average molecular weight reaches more than 3 millions. The optical adhesive layer prepared by the inventionis environment-friendly in synthesis process, small in environmental pollution, good in film-forming property and strong in durability, and can fully fit the physical properties required by the current flexible display device when being applied to the market as an optical adhesive.

Description

technical field [0001] The invention belongs to the technical field of polymer adhesives, and in particular relates to an optical adhesive layer and a preparation method thereof, an optical adhesive with an adhesive layer, and a flexible display device using the optical adhesive. Background technique [0002] A common application of pressure sensitive adhesives in industry today is in the manufacture of various displays such as computer monitors, televisions, mobile phones, and small displays (in automobiles, appliances, wearables, electronic devices, etc.). Flexible electronic displays, where the display can bend freely without cracking or breaking, is a rapidly emerging field of technology for making electronic devices using, for example, flexible plastic substrates. This technology allows the integration of electronic functions into non-planar objects, conforming to the desired design and flexibility during use, which can lead to a host of new applications. [0003] With...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/08C09J7/30C08F220/18C08F220/06C08F220/20G09F9/30
CPCC09J133/066C09J133/08C09J7/30C08F220/1805G09F9/301C09J2203/326C09J2433/00C08F220/1802C08F220/1808C08F220/06C08F220/20
Inventor 金闯刘小宁
Owner SUZHOU SIDIKE NEW MATERIALS SCI & TECH
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