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Surface-protective film and optical component attached with the same

A technology of surface protection film and silicone, which is applied in the direction of optical components, optical components, optics, etc., can solve problems such as damage to the orientation of liquid crystal molecules, breakdown of circuit components such as driver ICs, etc., to improve the yield rate, prevent process pollution, Productivity improvement effect

Active Publication Date: 2016-10-12
FUJIMORI KOGYO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In addition, in recent years, in the production process of liquid crystal display panels, although the number of pieces is small, there is a phenomenon that the surface protective film bonded to the optical film is peeled off due to the peeling static voltage generated when removing it. This is a phenomenon in which circuit components such as driver ICs that control the display screen of a liquid crystal display panel are broken down, or a phenomenon in which the alignment of liquid crystal molecules is damaged

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

[0078] (Preparation of surface protection film)

[0079] Mix 1.5 parts by weight of ethyl cellulose (ETHOCEL (registered trademark) 100FP manufactured by DOW Chemical), 1.125 parts by weight of a 20% ethyl acetate solution of lithium bisfluorosulfonyl imide, 98.5 parts by weight of toluene and ethyl acetate at a ratio of 1:1 The solvents were mixed, stirred and mixed, and the coating for forming the antistatic agent layer of Example 1 was prepared. On the surface of a polyethylene terephthalate film having a thickness of 38 μm, the coating forming the antistatic agent layer of Example 1 was coated using a Meyer bar so that the thickness after drying was 0.2 μm, and passed Drying was carried out in a hot air circulation oven at 120° C. for 1 minute, and the film for bonding of Example 1 was obtained. On the other hand, 100 parts by weight of a silicone binder (manufactured by Shin-Etsu Chemical Co., Ltd., trade name: X-40-3306), 0.2 parts by weight A coating solution of a cat...

Embodiment 2

[0081] The surface protection film of Example 2 was obtained in the same manner as in Example 1 except that the antistatic agent was changed to lithium bistrifluoromethanesulfonimide.

Embodiment 3

[0083] Except that the paint forming the antistatic agent layer of Example 1 is made of 3.125 parts by weight of amino alkyd resin (manufactured by Hitachi Chemical Industry Co., Ltd., trade name: TessFine 303 (registered trademark, Tessfine 303), 0.1 part by weight of catalyst (manufactured by Hitachi Chemical Industries, Ltd., trade name: Dryer 900 (Dryer 900)), 1 part by weight of a 20% ethyl acetate solution of lithium bistrifluoromethanesulfonimide, 96.275 parts by weight of toluene and ethyl acetate 1 : 1 mixed solvent blending and stirring mixed except the coating, in the same manner as in Example 1, the surface protection film of Example 3 was obtained.

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Abstract

The invention provides a surface-protective film, which is not liable to cause generation of foreign matters due to a bonding layer, has excellent affinity with an optical film having uneven surface, has low pollution on a bonded object, is free of time deterioration and has excellent stripping antistatic performance, and also provides an optical component attached with the film. An adhesive layer (2), which is composed of an organic silicon adhesive composition containing polyether-modified organic silicon, on at least one surface of a transparent base material (1). A lamination film (5) having an antistatic agent layer (4) is laminated on a surface protection film (10) on the adhesive layer through the antistatic agent layer. The lamination film (5) is formed by laminating the antistatic agent layer (4), which contains adhesive resin and is free of reaction with the adhesive resin, onto one surface of a resin film (3). The compoentns of hte antistatic agent layer is tranprinted to the surface of the adhesive layer from the lamination film, so as to reduce stripping static voltage when the adhesive layer is stripped from the bonded object.

Description

technical field [0001] The invention relates to a surface protection film attached to the surfaces of optical components such as polarizers, phase difference plates, lens films for displays, and glass cover plates. More specifically, the present invention provides a surface protection film and an optical component bonded with the surface protection film, and the surface protection film is hardly caused by an adhesive layer even when it is cut into a predetermined size. Foreign matter (micelle of adhesive), has good affinity (wettability) even to optical films with irregularities on the surface, and has little contamination to the adherend, does not deteriorate with time, and has excellent peeling antistatic performance. Background technique [0002] When manufacturing and transporting optical films such as polarizers, retardation plates, lens films for displays, anti-reflection films, hard coat films, transparent conductive films for touch panels, and optical products such ...

Claims

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Application Information

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IPC IPC(8): C09J7/02C09J183/04C09J11/08C09J9/02G02B1/14
CPCC09J9/02C09J11/08C09J183/04C09J2203/318C09J2483/00C09J7/201C09J7/22C09J7/38C09J2301/314C08L83/04B32B7/12B32B2307/21B32B2551/00C09J183/12C09K3/16
Inventor 小林弘幸新见洋人春日充铃木千惠五十岚智美木俣绘美子林益史
Owner FUJIMORI KOGYO CO LTD