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Adhesive composition, adhesive member, optical member, and electronic member

A technology of composition and adhesive, which is applied in the field of optical components and electronic components, and can solve problems such as damage to optical components and electronic components

Active Publication Date: 2021-04-02
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For the above-mentioned optical components and electronic components, in various situations such as assembly, processing, transportation, and use, a load based on a pressing force may be applied, and the optical components, The problem of broken electronic components

Method used

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  • Adhesive composition, adhesive member, optical member, and electronic member
  • Adhesive composition, adhesive member, optical member, and electronic member

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0125] To the solution of (meth)acrylic polymer (1), with respect to the solid content of 100 weight parts of the solution of (meth)acrylic polymer (1), the mode that all solid content becomes 25 weight %, with acetic acid It was diluted with ethyl ester and stirred with a disperser to obtain an adhesive composition (1) containing an acrylic resin. The results are shown in Table 1.

Embodiment 2

[0127] To the solution of the (meth)acrylic polymer (1) was added: 0.01 parts by weight in terms of solid content relative to 100 parts by weight of the solid content of the solution of the (meth)acrylic polymer (1). CORONATE L (manufactured by Nippon Polyurethane Industry Co., Ltd.) as a cross-linking agent, 0.005 parts by weight of iron acetylacetonate (manufactured by Nippon Chemical Industry Co., Ltd.) as a cross-linking catalyst in terms of solid content, the total solid content is 25% by weight was diluted with ethyl acetate and stirred with a disperser to obtain an adhesive composition (2) containing an acrylic resin. The results are shown in Table 1.

Embodiment 3

[0129] To the solution of the (meth)acrylic polymer (1) was added: 0.1 parts by weight in terms of solid content relative to 100 parts by weight of the solid content of the solution of the (meth)acrylic polymer (1). CORONATE L (manufactured by Nippon Polyurethane Industry Co., Ltd.) as a cross-linking agent, 0.005 parts by weight of iron acetylacetonate (manufactured by Nippon Chemical Industry Co., Ltd.) as a cross-linking catalyst in terms of solid content, the total solid content is 25% by weight was diluted with ethyl acetate and stirred with a disperser to obtain an adhesive composition (3) containing an acrylic resin. The results are shown in Table 1.

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Abstract

The present invention relates to adhesive compositions, adhesive members, optical members, and electronic members. The adhesive composition of the present invention includes a polymer (A). The polymer (A) has a monomer unit (I) and a monomer unit (II). The monomer unit (I) is derived from a compound having a carbon number of 1 to 20. The alkyl group is an alkyl (meth)acrylate as the alkyl ester part, and the monomer unit (II) is derived from a (meth)acrylate having an OH group and / or a COOH group in the molecule, and the adhesive composition is Let the molar content ratio of the NCO group in the adhesive composition be [NCO], let the molar content ratio of the epoxy group in the adhesive composition be [epoxy group], and let the molar content ratio of the OH group in the adhesive composition When the molar content ratio is [OH] and the molar content ratio of the COOH group in the adhesive composition is [COOH], ([NCO]+[epoxy group]) / ([OH]+[COOH] ])<0.05.

Description

technical field [0001] The present invention relates to an adhesive composition, an adhesive member having an adhesive layer formed of the adhesive composition, an optical member provided with the adhesive member, and an electronic member. Background technique [0002] In optical members and electronic members such as touch panels using LCDs, lens units of cameras, and electronic devices, an adhesive film may be attached to the exposed surface in order to impart rigidity and impact resistance (for example, Patent Document 1). Such an adhesive film usually has a substrate layer and an adhesive layer. [0003] For the above-mentioned optical components and electronic components, in various situations such as assembly, processing, transportation, and use, a load based on a pressing force may be applied, and the optical components, The problem of broken electronic components. [0004] prior art literature [0005] patent documents [0006] Patent Document 1: Japanese Patent ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J133/08C09J11/06C09J7/10C09J7/20C09J7/30
CPCC09J7/00C09J7/385C09J11/06C09J133/08C08K5/29C08K5/1515C09J7/20C09J133/10C09J2301/312
Inventor 佐佐木翔悟徐创矢设乐浩司
Owner NITTO DENKO CORP