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Adhesive with photo-induced viscosity loss function and preparation method thereof

An adhesive, photoinduced technology, applied in the direction of adhesives, adhesive types, rosin adhesives, etc., can solve the problems of insufficient adhesion and poor loss of adhesion, and achieve the effect of increasing the adhesion.

Pending Publication Date: 2022-07-29
JIANGSU GUOJIAO CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent uses UV adhesive, which may have problems of insufficient adhesion and poor tack loss effect

Method used

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  • Adhesive with photo-induced viscosity loss function and preparation method thereof
  • Adhesive with photo-induced viscosity loss function and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A light-induced debonding adhesive:

[0021] 20% modified rosin resin, 45% urethane acrylic resin with Tg below -20°, 20% reactive diluent (bis-trimethylolpropane tetraacrylate, 1,6-hexanediol diacrylate 1: 1 mixture), 13% acetone and 2% auxiliary agent are added into a high-speed disperser, stirred evenly, and filtered.

[0022] Implement column 2

[0023] A light-induced debonding adhesive:

[0024] Add 15% modified rosin resin, 35% modified acrylic resin, 20% reactive diluent (RJ429, Germany Good Chemicals (China) Co., Ltd.), 27% toluene, 3% additives into a high-speed disperser, stir evenly, filter That's it.

Embodiment 3

[0026] A light-induced debonding adhesive:

[0027] Mix 25% modified rosin resin, 40% modified acrylic resin, 32% reactive diluent (RJ4219, Germany Good Chemical (China) Co., Ltd., isobornyl acrylate, hydroxyethyl methacrylate 1:2:1 mixture ) and 3% of the auxiliary agent are added to a high-speed disperser, stirred evenly, and filtered.

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Abstract

The invention relates to the technical field of adhesives, and particularly discloses a photoinduced viscosity loss adhesive and a preparation method thereof.The adhesive is prepared from, by weight, 10%-30% of modified rosin resin, 30%-70% of modified acrylic resin, 15%-40% of reactive diluent, 0-30% of solvent and 0-30% of auxiliaries, and 0.1-5% of an auxiliary agent. According to the adhesive capable of losing viscosity under light, double bonds capable of being initiated by light are introduced into rosin resin by adopting a chemical modification method and are added into a photoinduced viscosity loss adhesive, after ultraviolet irradiation, an adhesive tape loses viscosity and is easy to remove, and the photoinduced viscosity loss performance is not influenced while the adhesive force of the adhesive can be increased.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a photo-induced debonding adhesive and a preparation method thereof. Background technique [0002] Light-induced loss of tack adhesive is a special adhesive product used for light-induced loss of tack tape. Photo-induced loss of tack tape is mainly used for temporary bonding and protection to prevent workpiece scratches, abrasions, pollution, corrosion, etc., after use It can be removed from the workpiece afterward, leaving no residue on the bonding surface and does not affect the material properties of the workpiece itself. After years of development and application exploration, it has been widely used in various fields, especially in semiconductor wafer cutting, precision electronic device manufacturing, and optical device manufacturing. [0003] The main function of the photo-induced debonding tape is realized by the adhesive layer coated on the base film. Chinese patent CN...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/14C09J193/04C09J133/00C09J11/00C09J7/30
CPCC09J175/14C09J133/00C09J11/00C09J7/30C08L93/04C08L75/14
Inventor 俞健钧
Owner JIANGSU GUOJIAO CHEM TECH