Adhesive resin composition and self-adhesive protective film

Abstract

The invention discloses an adhesive resin composition and a self-adhesive protective film. The adhesive resin composition is prepared from the following components in percentage by weight: 50 to 80 percent of styrene elastomer, 9 to 40 percent of tackifying resin, 9 to 35 percent of polyolefin elastomer and 0.1 to 5 percent of organic modified polydimethylsiloxane. The adhesive resin composition can be used for preparing the self-adhesive protective film, wherein the self-adhesive protective film has relatively-high adhesion for a coated body, and particularly has sufficient adhesion for a coated body of which the surface is of a prism structure; in addition, the adhesive resin composition is not easy to separate out and has the advantage of low possibility of transferring to the coated body. Besides, the self-adhesive protective film disclosed by the invention is easier to uncoil when being stored in a coiling state.

Description

technical field [0001] The invention belongs to the technical field of protective films, and in particular relates to an adhesive resin composition and a self-adhesive protective film. Background technique [0002] During the processing and transportation of synthetic resin sheets, metal sheets, coated steel sheets, etc., in order to prevent stains from adhering to or scratching the surface of these products, a surface protection film is usually used. In particular, ultra-thin displays such as liquid crystal displays are composed of a plurality of optical films or optical resin plates of synthetic resin. Since these optical films or optical resin plates need to minimize defects such as optical deformation, in order to prevent the above-mentioned products from being processed and transported If the surface is stained or scratched, use a surface protective film extensively. [0003] As such a surface protection film, a film formed by laminating and integrating an adhesive lay...

AI Technical Summary

Problems solved by technology

In addition, these surface protection films are usually rolled into roll-shaped rolls. These rolls have the following problems: since the base material layer and the adhesive layer are pressed together by a strong winding force, blocking is likely to occur. Difficult to operate when unwinding

But at least there are flaws: 1. Fluorine-based materials are incompatible in the casting and extrusion processing conditions, that is, they are equivalent to the existence of inorganic materials, which increases the frequency of replacement of melt filters, thereby increasing production costs; 2. Floating in The fluorine material on the surface of the surface layer has the risk of being stuck by the adhesive layer and transferred to the surface of the adhesive layer, and then transferred to the surface of the sticking object again

[0006] It can be seen from the above that in the prior art, the layer on the opposite side of the adhesive layer, that is, the surface layer, is usually coated with a release or release treatment to solve the problem of unwinding force of the protective film, but such treatment makes the process complicated. Thus, the yield rate is reduced and the cost is increased

And the material used in the surface layer is easy to precipitate, which will not only affect the adhesion of the adhesive layer, but also easily transfer to the object to be pasted

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