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., can solve the problems of difficult to paste FPR film, high peeling static voltage, etc., achieve small pollution, improve productivity, Effect of reducing static peeling voltage

Active Publication Date: 2017-03-22
FUJIMORI KOGYO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the change of the constituent material of the polarizing plate, there was a problem that the peeling electrostatic voltage generated when peeling off the surface protection film was higher than when using a polarizing plate with a conventional structure
However, if the surface of the optical film of the polarizer is contaminated by the adhesive or antistatic agent used in the 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

[0094] (Preparation of surface protection film)

[0095] 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 lithium bisfluorosulfonyl imide, 0.75 parts by weight of tetraethylene glycol di- 2-Ethylhexanoate, 95 parts by weight of a 1:1 mixed solvent of toluene and ethyl acetate, and 0.05 parts by weight of a platinum catalyst (manufactured by Dow Corning Toray Co., Ltd., trade name: SRX-212) were mixed and stirred Mixed to prepare a paint for forming the release agent layer of Example 1. On the surface of a polyethylene terephthalate resin film with a thickness of 38 μm, the paint forming the release agent layer of Example 1 was coated with a Meyer bar so that the thickness after drying was 0.2 μm, and hot air at 120° C. was used. Drying was performed for 1 minute in a circulating oven to obtain the release film of Example 1.

[0096] On the other hand, compared to the copolymer formed b...

Embodiment 2

[0099] The surface protection film of Example 2 was obtained in the same manner as in Example 1, except that the thickness after drying of the paint forming the release agent layer of Example 1 was 0.1 μm.

Embodiment 3

[0101] In addition to changing the addition reaction type silicone in Example 1 to Dow Corning Toray Co., Ltd. product name: SRX-211, and changing lithium bisfluorosulfonyl imide to lithium bistrifluoromethanesulfonyl imide, The surface protection film of Example 3 was obtained in the same manner as in Example 1.

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Abstract

The present invention provides a surface protective film and an optical component employing same. The surface protective film can be bonded to an optical film even with bumpy surface, has less contamination on a bounded object, and the low contamination on the bounded object may not change over time, and excellent anti-stripping electrostatic properties may not deteriorate over times. The surface protective film 10 has an adhesive layer (2) formed on one surface of a base film (1) made of transparent resin, and a releasing film 5 of a stripping agent layer 4 is formed by attaching the stripping agent layer 4on one surface of the resin film 3. The stripping agent layer 4 contains alkali metal salt, ester plasticizer contain at least one ether bond, and silicon stripping agent, and the alkali metal salt contained in the stripping agent layer 4 only exists in the surface of the adhesive layer 2.

Description

technical field [0001] The present invention relates to a surface protection film bonded to the surface of an optical member (hereinafter, may be referred to as an optical film). More specifically, there are provided a surface protection film that has little contamination to an adherend and does not change over time in the staining property of the adherend, and an optical component using the surface protection film. In addition, the present invention also provides a method that can be used even if the constituent material of the polarizer as an optical component is changed (changing a TAC film to an acrylic film or a polyester film, or changing a water-based adhesive to an ultraviolet-curable adhesive). A surface protection film that effectively suppresses peeling static electricity generated when the surface protection film is peeled off, and an optical component using the surface protection film. [0002] In addition, the optical member in this invention means a polarizing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02C09J133/08C09J11/06C09D5/20C08J7/04
CPCC08K5/435C08K2201/017C09D5/20C09J11/06C09J133/08C09J2433/00C09J2467/006C09J7/255C08J7/0427C09J2301/122C09J2301/408C09J5/04C09J7/40G02B5/3041G02B1/14
Inventor 小林弘幸新见洋人铃木千惠木俣绘美子林益史
Owner FUJIMORI KOGYO CO LTD
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