Heat-resistant UV visbreaking glue composition and UV visbreaking protective film

A composition and protective film technology, applied in the direction of non-polymer organic compound adhesives, polyurea/polyurethane adhesives, film/sheet adhesives, etc., can solve the problem of low peeling force, large peeling force, The UV adhesion-reducing protective film is resistant to high temperature and other problems, and achieves the effect of low peeling force, no residual glue left by the peeling force, and widening the application field

Inactive Publication Date: 2016-07-20
ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to provide a heat-resistant UV viscosity-reducing adhesive composition and UV viscosity-reducing protective film to solve the problem that the UV viscosity-reducing protective film is resistant to high temperatures, especially 120°C high temperature resistance, and the UV viscosity-reducing protective film has The advantages of high peeling force before UV irradiation, low peeling force after UV irradiation and no residual glue

Method used

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  • Heat-resistant UV visbreaking glue composition and UV visbreaking protective film
  • Heat-resistant UV visbreaking glue composition and UV visbreaking protective film
  • Heat-resistant UV visbreaking glue composition and UV visbreaking protective film

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Coating PET primer: use the company's self-made corona PET, the model is KFDN-50G4, the thickness of the substrate is 50um, the primer is 50g of water-based polyurethane emulsion (Shanghai Sisheng) model HD2081, and carboethylamine crosslinking agent 2.5g, 10g of deionized water, stir evenly, wait for defoaming for 10 minutes, and then apply it on the corona surface of the PET substrate. Uniform coating;

[0027] Preparation of heat-resistant UV viscosifying adhesive composition: drop 28gDR-U202 (manufactured by Changxing Chemical Co., Ltd.), 8gEM231 (manufactured by Changxing Chemical Co., Ltd.), 120gDS-203A (manufactured by Dongsheng Chemical) and 118g ethyl acetate in a 500ml shading cup , stir evenly with a disperser, then add 1.9g photoinitiator 184 (manufactured by Tianjin Tianjiao Chemical Co., Ltd.) and 8.5gN75 (20% concentration of ethyl acetate dilution) and 0.32gGA-240 (5 % concentration of ethyl acetate diluent), after adding, stir at a rotating speed of 50...

Embodiment 2

[0030] Coating PET primer: use the company's self-made corona PET, the model is KFDN-50G4, the thickness of the substrate is 50um, the primer is 50g of water-based polyurethane emulsion (Shanghai Sisheng) model HD2081, and carboethylamine crosslinking agent 2.5g, 10g of deionized water, stir evenly, wait for defoaming for 10 minutes, and then apply it on the corona surface of the PET substrate. Uniform coating;

[0031] Prepare a heat-resistant UV viscosifying adhesive composition: put 31gDM87A (manufactured by Double Bond Chemical Co., Ltd.), 7.5gEM231 (manufactured by Changxing Chemical Co., Ltd.), 110gDS-201A (manufactured by Dongsheng Chemical) and 120g isopropyl in a 500ml shading cup alcohol, stir evenly with a disperser, then add 1.9g photoinitiator 184 (manufactured by Tianjin Tianjiao Chemical Co., Ltd.) and 9gN75 (20% concentration of isopropanol dilution) and 0.24gGA-240 (5 % concentration of isopropanol diluent), after adding, stir with a rotating speed of 500rpm ...

Embodiment 3

[0034] Coating PET primer: use the company's self-made corona PET, the model is KFDN-50G4, the thickness of the substrate is 50um, the primer is 50g of water-based polyurethane emulsion (Shanghai Sisheng) model HD2081, and carboethylamine crosslinking agent 2.5g, 10g of deionized water, stir evenly, wait for defoaming for 10 minutes, and then apply it on the corona surface of the PET substrate. Uniform coating;

[0035] Preparation of heat-resistant UV viscosifying adhesive composition: drop 35g8415 resin (manufactured by Allnex), 3gEM264 (manufactured by Changxing Chemical Co., Ltd.), 100g1537-2 (Toyo Ink) and 120g ethyl acetate in a 500ml shading cup. Stir evenly, then add 2.0g photoinitiator 184 (manufactured by Tianjin Tianjiao Chemical Co., Ltd.) and 8.5g N75 (20% concentration of ethyl acetate dilution) and 0.30gGA-240 (5% concentration) while stirring in order Ethyl acetate diluent), after adding, stir at a speed of 500rpm for 30min, let it stand for more than 30min to...

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Abstract

The invention discloses a heat-resistant UV visbreaking glue composition and a UV visbreaking protective film prepared with this composition. This composition is made from the following materials according to parts by weight: 1-25% of a polyfunctional oligomer or polyfunctional monomer or its composition, 30-50% of a solvent type high-temperature-resistant polyacrylate pressure-sensitive glue, 0.5-1.5% of a cross-linking agent, 0.3-1.5% of a photo-initiator, and 35-60% of a solvent. The heat-resistant UV visbreaking protective film comprises a base (10), a bottom coating layer (20) applied to the surface of the base (10), a UV visbreaking glue layer (30) applied to the bottom coating layer (20), and a release film (40). The heat-resistant UV visbreaking protective film prepared herein can resist a high temperature of 120 DEG C and has the advantages of high UV pre-illumination release force, low UV post-illumination release force and no glue residue.

Description

technical field [0001] The invention relates to the field of protective films, in particular to a heat-resistant UV viscosity-reducing adhesive composition and a UV viscosity-reducing protective film. Background technique [0002] Viscosity-reducing protective films are divided into thermal-viscosity-reducing and UV-viscosity-reducing protective films, and most of them are UV-viscosity-reducing protective films on the market. UV viscosity-reducing protective film generally uses PO film as the base material, and some PET film materials are used as the base material. It is often used for the protection of wafer cutting process and the later picking process, and also for the protection of high-performance tempered glass process (such as mobile phone glass) and the laser engraving process on the metal back cover of the mobile phone protects the trend of transfer. [0003] In the domestic market, most of the UV viscosifying adhesives used for wafer dicing and picking process pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02C09J4/06C09J4/02C09J175/14
CPCC09J4/06C09J175/14C09J7/255C09J7/385C08F265/06
Inventor 夏有贵李冠毅丁清华
Owner ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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