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Adhesive resin composition, protective film and preparation method of protective film

A resin composition, adhesive technology, applied in the direction of adhesive type, film/sheet adhesive, mineral oil hydrocarbon copolymer adhesive, etc., can solve the problem of low viscosity of the adhesive layer, and achieve good Effect of Peel Force Stability

Active Publication Date: 2022-05-17
NINGBO EXCITON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of low viscosity of the adhesive layer of the existing protective film, the invention provides an adhesive resin composition, a protective film and a preparation method thereof

Method used

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  • Adhesive resin composition, protective film and preparation method of protective film
  • Adhesive resin composition, protective film and preparation method of protective film
  • Adhesive resin composition, protective film and preparation method of protective film

Examples

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Embodiment 1

[0041] The present invention provides an adhesion resin composition, the adhesive resin composition comprises an acrylic block copolymer of 25% by weight, a terpene resin with a weight percentage of 10%, a styrene elastomer with a weight percentage of 40%, a styrene copolymer with a weight percentage of 5% and a polyolefin copolymer by weight. The acrylic block copolymer is methyl methacrylate-butyl acrylate-methyl methacrylate block copolymer, where the content of methyl methacrylate is 15%; the terpene resin is a hydrogenated terpene resin with a softening point of 126 °C; the styrene elastomer is a hydrogenated styrene isopentadiene copolymer, of which the styrene content is 18%; the styrene copolymer is a styrene block copolymer, of which the styrene content is 12%; the polyolefin copolymer is an ethylene-octene copolymer with a density of 0.88g / cm 3 The melt index is 9.0g / 10min.

[0042] The present invention further provides a protective film, the protective film is prepared...

Embodiment 2

[0044]As provided in Example 1, the adhesive resin composition and protective film, wherein the adhesive resin composition comprises an acrylic block copolymer with a weight percentage of 30%, a terpene resin with a weight percentage of 15%, a styrene elastomer with a weight percentage of 35%, a styrene copolymer with a weight percentage of 12%, and a polyolefin copolymer of 8%. The density of polyolefin copolymers is 0.90g / cm 3 , the melt index is 6.0g / 10min.

Embodiment 3

[0046] As provided in Example 1, the adhesive resin composition and protective film, wherein the adhesive resin composition comprises an acrylic block copolymer with a weight percentage of 30%, a weight percentage of 25% C9 petroleum resin, a weight percentage of 20% styrene elastomer, a weight percentage of 10% styrene copolymer and 15% polyolefin copolymer. The content of methyl methacrylate in acrylic block copolymers is 20%, the softening point of C9 petroleum resin is 120 °C, and the density of polyolefin copolymers is 0.90g / cm 3 , the melt index is 6.0g / 10min.

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Abstract

The invention relates to the field of protective film materials, in particular to an adhesive resin composition for a high-fog optical thin film, a protective film and a preparation method of the protective film. In order to solve the problem of low viscosity of an adhesive layer of an existing protective film, the invention provides the adhesive resin composition, the protective film and the preparation method of the protective film. The adhesive resin composition comprises the following components in percentage by weight: 25%-45% of an acrylic block copolymer, 10%-25% of tackifying resin, 20%-40% of a styrene elastomer, 5%-15% of a styrene copolymer and 5%-20% of a polyolefin copolymer. The adhesive resin composition can be used for preparing a high-viscosity protective film, and the protective film prepared by taking the adhesive resin composition as an adhesive layer has relatively strong adhesive force on the surface of a high-fog and rough pasted object, can keep good time stability, and does not have the problems of floating, precipitation and the like.

Description

Technical field [0001] The present invention relates to the field of protective film materials, in particular to an adhesion resin composition for a high-fog optical film and a protective film and a protective film and a preparation method thereof. Background [0002] In recent years, with the rapid development of the electronics industry, the demand for ultra-thin displays such as liquid crystal displays has also increased. Liquid crystal displays are mainly composed of a variety of optical diaphragms. To prevent the optical diaphragm from being stained or scratched during handling and assembly, its surface needs to be protected. For the surface protection film of the optical functional film with high haze, the protective film is required to have good adhesion and stickiness. The traditional protective film is still dominated by a rubber-coated protective film, which is coated with a layer of adhesive on the base film, and the commonly used adhesives are acrylic adhesives, poly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J153/02C09J153/00C09J145/00C09J123/08C09J157/02C09J7/30C09J7/29
CPCC09J153/025C09J7/30C09J7/29C09J153/00C08L2205/025C08L2205/035C09J2423/106C09J2453/006C08L53/00C08L45/00C08L23/0815C08L57/02C08L53/025
Inventor 张彦陈强田佳乐胡金福李刚唐海江
Owner NINGBO EXCITON TECH