Process film production method for process of stable adhesion after high temperature, and product thereof

A production method and adhesion technology, applied in the direction of non-polymer adhesive additives, adhesives, pressure-sensitive films/sheets, etc., can solve the problems of rising peeling force, achieve stable peeling force, solve the problem of sharp increase in peeling force, The effect of avoiding the phenomenon of residual glue

Inactive Publication Date: 2019-11-12
上海精珅新材料有限公司
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Problems solved by technology

[0009] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a process film production method with stable adhesion after high temperature, so as to solve the problem of rising peeling force of the protective film due to use in a high temperature environment

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  • Process film production method for process of stable adhesion after high temperature, and product thereof
  • Process film production method for process of stable adhesion after high temperature, and product thereof

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Embodiment Construction

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0029] Such as figure 1 As shown, a process film for a process with stable adhesion after high temperature, the process film includes: a substrate 1, a pressure-sensitive adhesive layer 2, and a release film 3, prepared according to the following production method:

[0030] (a) Substrate 1 is a PET, PO, PVC or PP optical film with a thickness of 25-200 μm, one side of which is subjected to corona treatment;

[0031] (b) Place corona-prepared substrate 1 at room temperature or high temperature of 40-60°C for 3 days, or longer, so that the ozone generated by corona can be decomposed and prevent the production from being affected later;

[0032] (c) Coating a pressure-sensitive adhesive layer 2 on the corona surface of the substrate 1 and compounding a release film 3, wherein the pressure-sensitive adhesive layer 2 is a UV-viscosity-reducing adhesive layer, and...

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Abstract

The invention discloses a process film production method for a for process of stable adhesion after a high temperature, and a product thereof. A substrate in the process film is a PET, PO, PVC or PP optical film with a thickness of 25-200 [mu]m, and one side of the optical film is subjected to corona treatment; and a pressure-sensitive adhesive layer is a UV viscosity reducing adhesive layer, andcomprises 0.1-5% of a photoinitiator having an absorption wavelength of 200-400 nm and 0.5-10% of nanocrystall beads, and the pressure-sensitive adhesive is applied to the corona surface of the substrate, and is covered with a release film, the peeling strength before UV is 500-5000 g / 25 mm, and the peeling strength after UV is 0-100 g / 25 mm. The peel strength is stable when the process film is used in a high temperature environment, so the problem that the peeling strength of the UV viscosity reducing adhesive film in the high temperature environment is greatly increased is solved, the residual glue phenomenon is avoided, the stability of the technology process is increased, and the yield and the efficiency are improved. The product is mainly applied to the processing process of a film group at present.

Description

technical field [0001] The invention relates to the field of adhesive tapes, in particular to a process film production method and a product thereof for a manufacturing process with stable adhesion after high temperature. Background technique [0002] Process films are used in the production of precision electronic products, and different product types have different requirements for protective films. [0003] Application number: 201810106104.9 relates to the field of protective film technology, especially to a UV viscous reducing composition, UV viscous reducing film and its preparation method. The UV detackifying composition is mainly made of the following raw materials by weight percentage: 20%-50% of acrylate pressure-sensitive adhesive resin, 1%-30% of multifunctional oligomer and / or multifunctional monomer , crosslinking agent 0.3%-2%, antistatic agent 0.1%-5%, dispersant 0-2%, leveling agent 0.2%-2%, photoinitiator 0.5%-5% and solvent 25%-60% . The UV detackifying ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/38C09J7/40C09J11/04
CPCC09J7/38C09J7/40C09J11/04C09J2467/005C08K7/24C08K7/28C08K2201/011C09J2301/122C09J2301/302C09J2301/408
Inventor 孙攀王健牛建超
Owner 上海精珅新材料有限公司
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