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Surface-protective film and optical component attached with the same

A technology of surface protection film and peeling film, which is applied in the direction of optical components, optics, film/sheet adhesive, etc. It can solve the problems of difficult to paste FPR film, etc., and achieve productivity, less pollution, and anti-aging degradation over time. Effect of stripping static electricity performance

Active Publication Date: 2017-08-22
FUJIMORI KOGYO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the surface of an optical film such as a polarizer is contaminated with an adhesive or an antistatic agent used in a surface protection film, there is a problem that it is difficult to attach the FPR film

Method used

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  • Surface-protective film and optical component attached with the same
  • Surface-protective film and optical component attached with the same
  • Surface-protective film and optical component attached with the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] (Preparation of surface protection film)

[0081] 5 parts by weight of addition reaction silicone (manufactured by Dow Corning Toray Co., Ltd., trade name: SRX-345), 0.75 parts by weight of N-butyl-4 as an ionic compound with a melting point of 48° C. -picoline hexafluorophosphate, 0.75 parts by weight of tetraethylene glycol di-2-ethylhexanoate, 95 parts by weight of toluene and ethyl acetate as a 1:1 mixed solvent, 0.05 parts by weight of platinum catalyst (manufactured by Dow Corning Toray Co., Ltd., trade name: SRX-212) were mixed, stirred and mixed, and the coating material for forming the release agent layer of Example 1 was prepared. On the surface of a polyethylene terephthalate film with a thickness of 38 μm, the paint used to form the release agent layer of Example 1 was coated with a Meyer bar so that the thickness after drying was 0.2 μm, and a 120° C. Dry in a hot air circulation oven for 1 minute to obtain the peeling film of Example 1. On the other hand...

Embodiment 2

[0084] In the same manner as in Example 1, except that instead of N-butyl-4-methylpyridine hexafluorophosphate, 1-methyl-3-ethylimidazolium hexafluorophosphate, which is an ionic compound having a melting point of 62°C, was used Thus, the surface protective film of Example 2 was obtained.

Embodiment 3

[0093]Except for using the following adhesive composition instead of the adhesive composition of Example 1, the surface protection film of Example 3 was obtained in the same manner as in Example 1. In this adhesive composition, relative to 100 parts by weight of 30% ethyl acetate solution of the adhesive polymer formed by the copolymer of 58 parts by weight of 2-ethylhexyl acrylate, 38 parts by weight of butyl acrylate, and 4 parts by weight of 2-hydroxyethyl acrylate, adding In addition, 1.2 parts by weight of an isocyanate curing agent (manufactured by TOSOH CORPORATION, trade name: Coronate (registered trademark) HX) was mixed.

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Abstract

The present invention provides a surface-protective film and an optical component attached with the same. The surface-protective film has a good affinity (wettability) toward an optical film with irregular surface, makes little pollution to an adhered body, and has excellent antistatic properties during peeling without deterioration over time. The surface-protective film (10) is formed through attaching a stripping film (5) comprising a stripping layer (4) on an adhesive agent layer (2), the stripping film (5) is formed through laminating stripping agent layer (4) on a resin film, the stripping agent layer (4) contains a stripping agent containing polydimethylsiloxane as a main component, an antistatic agent which do not act with the stripping agent and an ester plasticizer containing more than one ether bonds, the components of the antistatic agent are anionic compounds with melting point of 30-80 DEG C, the components of the antistatic agent layer and the ester plasticizer transfer from the stripping layer (4) of the stripping film (5) to the surface of the adhesive agent layer, decreasing the peel voltage during peeling the adhesive agent layer from the adhered body.

Description

technical field [0001] The present invention relates to a surface protection film bonded to the surface of optical components (hereinafter, sometimes referred to as an optical film) such as a polarizing plate, a retardation plate, and a lens film for a display. More specifically, to provide a surface protection film with less contamination to an adherend, and further, to provide a surface protection film having excellent anti-peeling electrostatic performance that does not deteriorate with time, and a product using the surface protection film optics. Background technique [0002] Conventionally, optical films such as polarizing plates, retardation plates, lens films for displays, anti-reflection films, hard coat films, transparent conductive films for touch panels, and displays using these films have been used. When producing products, a surface protection film is attached to the surface of the optical film to prevent dirt or scratches on the surface in subsequent processes...

Claims

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Application Information

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IPC IPC(8): C09J7/02C09J133/08C09D183/04C09D5/24C09D7/12G02B5/30
CPCC08K5/06C08K5/3432C09D5/24C09D183/04C09J133/08C09J2203/318C09J2433/00C09J2467/005C09J2467/006C09D7/63C09J7/401G02B5/30C08K5/10C08K2201/017C09J7/20C09J7/385G02B1/11G02B1/14G02B1/16
Inventor 小林弘幸春日充新见洋人铃木千惠五十岚智美木俣绘美子林益史
Owner FUJIMORI KOGYO CO LTD
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