Resin composition and adhesive and protection film formed thereby

A resin composition and resin technology, applied in the direction of adhesives, adhesive types, polyurea/polyurethane adhesives, etc., can solve the problems of bonding force affecting the performance of protective films, etc., to meet long-term application requirements, excellent performance, improve The effect of bonding

Inactive Publication Date: 2018-08-07
新纶电子材料(常州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the lack of polar groups, the lack of sufficient binding force between polyurethane pressure-sensitive adhesive and the substrate will affect the performance of the protective film

Method used

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  • Resin composition and adhesive and protection film formed thereby
  • Resin composition and adhesive and protection film formed thereby
  • Resin composition and adhesive and protection film formed thereby

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] This embodiment provides a resin composition, which comprises the following components in parts by weight:

[0043] 100 parts of main resin, 1 part of adduct (curing agent) of toluene diisocyanate and trimethylolpropane, 0.01 part of dibutyltin diacetate (catalyst), 100 parts of ethyl acetate (solvent);

[0044] Among them, the main resin includes polyurethane prepolymer containing urethane groups (resin A for short) and polyol resin (resin B for short), the mass ratio of resin A and resin B is 1:5, and group A in the main resin It is divided into a polyurethane prepolymer containing 2 terminal hydroxyl groups and an average molecular weight of 8000, and resin B is a polyol containing 3 terminal hydroxyl groups and an average molecular weight of 8000.

[0045] This embodiment also provides an adhesive, which includes the above-mentioned resin composition, by mixing the main resin, solvent and catalyst weighed in proportion under mechanical stirring, then adding a curing...

Embodiment 2

[0047] This embodiment provides a resin composition, which comprises the following components in parts by weight:

[0048] 100 parts of main resin, 3 parts of hexamethylene diisocyanate trimer (curing agent), 0.1 part of bismuth isooctanoate (catalyst), 50 parts of toluene (solvent);

[0049] Among them, the main resin includes polyurethane prepolymer containing urethane groups (resin A for short) and polyol resin (resin B for short), the mass ratio of resin A and resin B is 1:3, and group A in the main resin It is divided into a polyurethane prepolymer containing 3 terminal hydroxyl groups and an average molecular weight of 10,000. Resin B is a polyol containing 2 terminal hydroxyl groups and an average molecular weight of 4,000.

[0050]This embodiment also provides an adhesive, which includes the above-mentioned resin composition, by mixing the main resin, solvent and catalyst weighed in proportion under mechanical stirring, then adding a curing agent and stirring evenly, u...

Embodiment 3

[0052] This embodiment provides a resin composition, which comprises the following components in parts by weight:

[0053] 100 parts of main resin, 5 parts of 1,5-naphthalene diisocyanate and trimethylolpropane adduct (curing agent), 1 part of dibutyltin dilaurate (catalyst), 150 parts of butyl acetate (solvent);

[0054] Among them, the main resin includes polyurethane prepolymer containing urethane groups (resin A for short) and polyol resin (resin B for short), the mass ratio of resin A and resin B is 1:10, and group A in the main resin Divided into a polyurethane prepolymer containing 3 terminal hydroxyl groups and an average molecular weight of 12,000. Resin B is a polyol containing 3 terminal hydroxyl groups and an average molecular weight of 6,000.

[0055] This embodiment also provides an adhesive, which includes the above-mentioned resin composition, by mixing the main resin, solvent and catalyst weighed in proportion under mechanical stirring, then adding a curing ag...

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PUM

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Abstract

The invention provides a resin composition. The resin composition includes the following components, by weight: 100 parts of resin, 1-10 parts of a curing agent, 0.01-5 parts of a catalyst, and 50-200parts of a solvent. The matrix resin includes polybasic alcohol resin and a polyurethane prepolymer containing carbamate groups. The invention also provides an adhesive containing the resin composition. The invention also provides a protection film. A pressure-sensitive layer of the protection film is formed by curing the adhesive. The resin composition comprises the polyurethane performed polymer containing carbamate groups, and the structure and dosage of the prepolymer are controlled, and therefore bonding force between the polyurethane pressure-sensitive adhesive layer and a base materialis increased, and a protective film product having excellent performance and meeting long-term application requirements can be obtained.

Description

technical field [0001] The invention relates to a resin composition and an adhesive and a protective film formed therefrom, belonging to the application field of adhesives and adhesive materials. Background technique [0002] Conventionally, optical members and electronic members such as LCDs, organic EL displays, touch panels using organic EL displays, lens portions of cameras, and electronic devices all have one side where the surface is exposed. In order to avoid defects during processing, assembly, inspection and transportation, a pressure-sensitive adhesive sheet is usually attached to one side of the exposed surface. [0003] Polyurethane pressure-sensitive adhesive is a kind of pressure-sensitive adhesive. The adhesive sheet and protective film formed have excellent self-exhaust properties and excellent stability. It is not easy to generate bubbles and enrichment during the attachment process, and there is no precipitate Migrate and contaminate the protected device. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/04C09J7/38C08G18/10C08G18/79
CPCC08G18/10C08G18/792C09J175/04C09J2203/318
Inventor 石红娥岳威
Owner 新纶电子材料(常州)有限公司
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