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Adhesive composition, UV viscosity-reducing adhesive tape and preparation method thereof

A composition and adhesive technology, applied in the directions of adhesives, adhesive types, ester copolymer adhesives, etc., can solve the problem of high peeling force, and achieve the effect of high adhesion, low pollution and easy peeling

Active Publication Date: 2022-05-20
NINGBO EXCITON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem of high peeling force of the existing UV adhesive tape after high temperature treatment, the invention provides an adhesive composition, a UV adhesive tape and a preparation method thereof

Method used

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  • Adhesive composition, UV viscosity-reducing adhesive tape and preparation method thereof
  • Adhesive composition, UV viscosity-reducing adhesive tape and preparation method thereof
  • Adhesive composition, UV viscosity-reducing adhesive tape and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] The invention provides an adhesive composition and a detackifying adhesive tape applied to IRCF screen printing process protection.

[0074] Select methyl acrylate unit (50%), butyl acrylate unit (45%), vinyl acetate unit (1.5%), 2-hydroxyethyl acrylate unit (2.0%) and (meth)acrylic acid unit (1.5%) , synthesize (meth)acrylate copolymer through solution polymerization method, the weight average molecular weight of (meth)acrylate copolymer is about 500,000-600,000, weigh 100.0 mass parts (meth)acrylate copolymer; Aromatic urethane acrylate oligomer (commercially available) with 6 vinyl functional groups, molecular weight 5000-15000, weighing 5.0 parts by mass; choose polytoluene diisocyanate trimer as curing agent (manufactured by Tosoh Chemical: CORONATE L ), weighing 1.5 parts by mass; select 30% of compounded 1-hydroxycyclohexyl phenyl ketone (BASF company: IRGACURE 184) and 70% of 2,4,6-trimethylbenzoyl diphenyl phosphine oxide (BASF Corporation: DAROCUR TPO) was us...

Embodiment 2

[0077] Select the (meth)acrylate copolymer as in Example 1, the weight-average molecular weight is 50-600,000, weigh 100.0 parts by mass; select the aromatic urethane acrylate oligomer containing 6 vinyl functional groups (commercially available) ), molecular weight 5000-15000, weighing 1.0 parts by mass; choose polytoluene diisocyanate trimer as curing agent (Tosoh Chemical: CORONATEL), weigh 1.5 parts by mass; choose compound 30% 1-hydroxycyclohexyl Phenyl ketone (manufactured by BASF: IRGACURE 184) and 70% of 2,4,6-trimethylbenzoyldiphenylphosphine oxide (manufactured by BASF: DAROCUR TPO) as photoinitiators, weighing 3.0 mass share.

[0078] The adhesive composition of the above formula, 100 μm PET substrate (commercially available, Young's modulus of elasticity 3550Mpa) and release film are made into adhesive tape according to the method provided by the present invention, and the thickness of the adhesive layer is 20 μm. Evaluate the performance of the adhesive break tap...

Embodiment 3

[0080] Select the (meth)acrylate copolymer as in Example 1, the weight-average molecular weight is 50-600,000, weigh 100.0 parts by mass; select the aromatic urethane acrylate oligomer containing 6 vinyl functional groups (commercially available) ), molecular weight 5000-15000, weigh 10.0 parts by mass; choose polytoluene diisocyanate trimer as curing agent (Tosoh Chemical: CORONATEL), weigh 1.5 parts by mass; choose compound 30% 1-hydroxycyclohexyl Phenyl ketone (manufactured by BASF: IRGACURE 184) and 70% of 2,4,6-trimethylbenzoyldiphenylphosphine oxide (manufactured by BASF: DAROCUR TPO) as photoinitiators, weighing 3.0 mass share.

[0081] The adhesive composition of the above formula, 100 μm PET substrate (commercially available, Young's modulus of elasticity 3550Mpa) and release film are made into adhesive tape according to the method provided by the present invention, and the thickness of the adhesive layer is 20 μm. Evaluate the performance of the adhesive break tape ...

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Abstract

The invention relates to a UV viscosity-reducing adhesive tape, in particular to an adhesive composition, a UV viscosity-reducing adhesive tape and a preparation method of the UV viscosity-reducing adhesive tape. In order to solve the problem that the existing UV viscosity-reducing adhesive tape is high in stripping force after being subjected to high-temperature treatment and UV viscosity reduction, the invention provides the adhesive composition, the UV viscosity-reducing adhesive tape and the preparation method of the UV viscosity-reducing adhesive tape. The adhesive composition comprises 100.0 parts by mass of a (meth) acrylate copolymer, 1.0 to 10.0 parts by mass of an aromatic polyurethane acrylate oligomer containing six vinyl groups, 0.5 to 5.0 parts by mass of a curing agent and 3.0 parts by mass of a photoinitiator. The UV visbreaking layer (namely the bonding layer) of the UV visbreaking adhesive tape provided by the invention is formed by curing the adhesive composition provided by the invention. The adhesive composition provided by the invention is cured to form a UV viscosity-reducing adhesive layer, and the UV viscosity-reducing adhesive layer is low in stripping force after being subjected to high-temperature treatment and UV treatment.

Description

technical field [0001] The invention relates to a UV adhesive tape, in particular to an adhesive composition, a UV adhesive tape and a preparation method thereof. The adhesive tape is applied to a silk screen printing process of an optical filter. Background technique [0002] The infrared cut filter (Infra-Red Cut-off Color-Filter, referred to as IRCF) is an optical component that constitutes a necessary high-performance camera module. It is located between the optical prism in the camera and the CMOS (Complementary Metal Oxide Semiconductor) sensor. In addition to infrared light above 630nm to improve imaging quality. The process route of cold processing to produce IRCF includes the following steps: coating, silk screen printing, cutting, laminating components and other processes. [0003] Generally, eliminating the stray light formed by the reflection of the gold wire in the camera module is beneficial to reducing ghost images and light spots during imaging, thereby impr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/08C09J175/14C09J11/06C09J7/30C09J7/25B41M1/12B41M1/30
CPCC09J133/066C09J11/06C09J7/30C09J7/255B41M1/12B41M1/30C09J2433/00C09J2467/006C08L75/14C08K5/3492
Inventor 张彦缪锴李瑞鑫夏寅李刚唐海江
Owner NINGBO EXCITON TECH
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