Heat-resistant UV viscosity breaking film and preparation method thereof

A heat-resistant, mucous membrane technology, applied in adhesives, pressure-sensitive films/sheets, polymer adhesive additives, etc., can solve problems such as inability to overcome high temperature resistance of 150°C, increase production costs, reduce production efficiency, etc., to achieve enhanced High temperature resistance, improved adhesion, and optimized product structure

Active Publication Date: 2017-08-01
新纶电子材料(常州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The patent (CN201610156835.5) discloses a heat-resistant UV viscosity-reducing adhesive composition and a UV-viscosity-reducing protective film. The invention uses a primer coating on a corona PET coil, and cooperates with its formulation technology to solve the problem of UV The viscosity-reducing protective film is resistant to high temperatures, especially the problem of high temperature resistance of 120°C, and the UV-viscosity-reducing protective film has high peeling force before UV light, low peeling force after UV light and no residual glue, but the invention technology cannot overcome the problem of high temperature resistance. 150°C high temperature requirement, at the same time adopts the coating primer technology, one more production process, increases the production cost and reduces the production efficiency

Method used

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  • Heat-resistant UV viscosity breaking film and preparation method thereof
  • Heat-resistant UV viscosity breaking film and preparation method thereof
  • Heat-resistant UV viscosity breaking film and preparation method thereof

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Embodiment 1

[0027] Such as figure 1 As shown, the heat-resistant UV adhesion-reducing film of this embodiment includes a corona PET substrate layer 11 , a UV-adhesion-reducing PSA layer 12 , and a PET release film layer 13 in sequence.

[0028] Prepare heat-resistant UV photosensitive adhesive: put 28g DR-U202 (manufactured by Changxing Chemical Co., Ltd.), 8g EM231 (manufactured by Changxing Chemical Co., Ltd.), 120g DS-203A (manufactured by Dongsheng Chemical Co., Ltd.) and 118g into a 500mL light-shielding cup Ethyl acetate, stir with disperser, then add 0.5g XY-2 (Shanghai Saikensen Material Technology Co., Ltd.), 1.9g photoinitiator 184 (manufactured by Tianjin Tianjiao Chemical Co., Ltd.) and 4.14g while stirring in order L-45E (Nanjing Soyan Chemical), after adding, stir at 500rpm for 30min, let it stand for more than 30min to defoam naturally, and you can get heat-resistant UV photosensitive adhesive.

[0029] Coating UV photosensitive adhesive process: On the corona PET substrat...

Embodiment 2

[0031] Such as figure 1 As shown, the heat-resistant UV adhesion-reducing film of this embodiment includes a corona PET substrate layer 11 , a UV-adhesion-reducing PSA layer 12 , and a PET release film layer 13 in sequence.

[0032] Prepare heat-resistant UV photosensitive adhesive: 31g DM87A (manufactured by Double Bond Chemical Co., Ltd.), 7.5g EM231 (manufactured by Changxing Chemical Co., Ltd.), 110g DS-201A (manufactured by Dongsheng Chemical Co., Ltd.), and 125g ethyl acetate, stir evenly with a disperser, then add 0.65g XY-2 (Shanghai Saikensen Material Technology Co., Ltd.), 1.9g photoinitiator 184 (manufactured by Tianjin Tianjiao Chemical Co., Ltd.) and 3.98g while stirring in order g L-45E (Nanjing Soken Chemical Co., Ltd.), after the addition, stir at 500rpm for 30 minutes, let it stand for more than 30 minutes to naturally defoam, and you can get a heat-resistant UV photosensitive adhesive.

[0033] Coating UV photosensitive adhesive process: On the corona PET su...

Embodiment 3

[0035] Such as figure 1 As shown, the heat-resistant UV adhesion-reducing film of this embodiment includes a corona PET substrate layer 11 , a UV-adhesion-reducing PSA layer 12 , and a PET release film layer 13 in sequence.

[0036] Prepare heat-resistant UV photosensitive adhesive: put 35g 8415 resin (manufactured by Allnex), 3g EM264 (manufactured by Changxing Chemical Co., Ltd.), 100g 1537-2 (Toyo Ink) and 130g ethyl acetate into a 500mL shading cup, Stir evenly with a disperser, then add 0.55g XY-2 (Shanghai Saikensen Material Technology Co., Ltd.), 2.0g photoinitiator 184 (manufactured by Tianjin Tianjiao Chemical Co., Ltd.) and 3.93g L-45E ( Nanjing Soken Chemical), after the addition is completed, stir at a speed of 500rpm for 30 minutes, and let it stand for more than 30 minutes to naturally defoam, and the heat-resistant UV viscose-reducing adhesive can be obtained.

[0037]Coating UV photosensitive adhesive process: On the corona PET substrate 11, use a scraper to c...

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Abstract

The invention provides a heat-resistant UV viscosity breaking film. The heat-resistant UV viscosity breaking film comprises a substrate layer, a UV photosensitive adhesive layer and a release film layer sequentially. The invention further provides a preparation method of the UV photosensitive adhesive layer. The UV photosensitive adhesive layer comprises the ingredients in percentage by weight: 30% to 50% of solvent type high-temperature resistant polyacrylate pressure-sensitive adhesive, 1% to 25% of micromolecular mixed additives, 0.1% to 3% of difunctional or polyfunctional special additive, 0.1% to 1.5% of photoinitiator, 0.5% to 2% of curing agent and 35% to 60% of solvent. The invention further provides a preparation method of the heat-resistant UV viscosity breaking film. According to the heat-resistant UV viscosity breaking film and the preparation method thereof, the sealing performance and high-temperature resistance of a UV photosensitive adhesive to corona PET substrates are improved, base coat treatment technologies are reduced, and the product structure is optimized.

Description

technical field [0001] The invention belongs to the technical field of functional adhesive tapes, and relates to a UV mucous reducing film, in particular to a heat-resistant UV mucous reducing film and a preparation method thereof. Background technique [0002] With the rapid development of electronic products, the requirements for functional materials such as functional tapes are getting higher and higher. At present, UV mucous-reducing tapes are emerging among functional tapes, and are mainly used in the protection of wafer cutting process and electronic glass reprocessing process. During the wafer cutting and picking process, the UV adhesive film is mainly based on a PO film with a certain degree of flexibility, which is convenient for attaching to the curved surface of the wafer; while the UV adhesive film based on PET is mainly used for For flat electronic glass, there is no specific requirement for the softness of the tape, but the requirement for its high temperature...

Claims

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Application Information

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IPC IPC(8): C09J7/02C09J4/02C09J4/06C09J133/00C09J11/08
CPCC08L2201/08C09J4/06C09J11/08C09J133/00C09J2203/326C09J2433/00C09J7/22C09J7/38C09J2301/122C09J2301/302C09J2301/408C08L75/14C08L63/10
Inventor 夏有贵
Owner 新纶电子材料(常州)有限公司
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