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Surface protection film and optical part bonded with the surface protection film

A surface protective film, single-sided technology, used in optical components, optical components, optics, etc., can solve problems such as difficult requirements, and achieve the effects of reliable protection, excellent degradation over time, and low peeling electrostatic voltage

Active Publication Date: 2016-10-05
FUJIMORI KOGYO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current situation is that it is difficult to meet this requirement in the conventionally proposed surface protection film using an adhesive layer containing an antistatic agent.

Method used

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  • Surface protection film and optical part bonded with the surface protection film
  • Surface protection film and optical part bonded with the surface protection film
  • Surface protection film and optical part bonded with the surface protection film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] (manufacture of surface protection film)

[0088] 5 parts by weight of addition reaction polysiloxane (product name is SRX-345, manufactured by Dow Corning Toray Co., Ltd.), 0.3 parts by weight of polyether-modified polysiloxane Siloxane (product name SH8400, manufactured by Dow Corning Toray Co., Ltd.), 1 part by weight of N-butyl-4-methylpyridinium hexafluorophosphate as an ionic compound with a melting point of 48°C, 95 The toluene of weight part and ethyl acetate are the mixed solvent of 1:1, the platinum catalyst of 0.05 weight part (product name is SRX-212, manufactured by Dow Corning Toray Co., Ltd.) are mixed together and stirred and mixed, prepared to form Coating for the release agent layer of Example 1. Using a Meller rod, the paint forming the release agent layer of Example 1 was coated on the surface of a polyethylene terephthalate film with a thickness of 38 μm so that the thickness after drying was 0.2 μm, and It dried for 1 minute in the hot-air circul...

Embodiment 2

[0090] Except having set the thickness after drying of the coating material which forms the release agent layer of Example 1 to 0.1 micrometer, it carried out similarly to Example 1, and obtained the surface protection film of Example 2.

Embodiment 3

[0092] As the addition reaction polysiloxane of Example 1, a product named SRX-211 manufactured by Dow Corning Toray Co., Ltd. (DowCorning Toray Co., Ltd.) was used. As the polyether-modified polysiloxane A product named KS-352A manufactured by Shin-Etsu Chemical Co., Ltd. was used, and 1-methyl-3-ethylimidazolium hexafluorophosphate as an ionic compound with a melting point of 62°C was used instead of N-butyl- 4-Pyridinium hexafluorophosphate was carried out in the same manner as in Example 1 except for the above, and the surface protection film of Example 3 was obtained.

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Abstract

PROBLEM TO BE SOLVED: To provide a surface protective film that gives little contamination to an adherend and shows no change in low contamination property to an adherend with lapse of time, and that has excellent peeling antistatic performance without degradation with time, and to provide an optical component using the surface protective film.SOLUTION: A surface protective film 10 includes an adhesive layer 2 formed on one surface of a base film 1 comprising a resin having transparency, and a release film 5 having a release agent layer 4 laminated on the adhesive layer 2. The release film 5 includes the release agent layer 4 formed of a resin composition containing a release agent essentially comprising dimethyl polysiloxane, a silicone compound that is liquid at 20°C, and an ionic compound having a melting point of 30 to 80°C, on one surface of a resin film 3. The adhesive layer 2 is an acrylic adhesive layer.

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 "optical film") such as polarizing plates, retardation plates, and lens films for displays. More specifically, the present invention provides a surface protection film that has less contamination to an adherend, does not deteriorate over time, and has excellent anti-peeling electrostatic performance, and an optical component bonded with the surface protection film. Background technique [0002] At present, when manufacturing and transporting 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 optical products such as displays using them, A surface protective film is bonded to the surface of the optical film to prevent surface contamination and scratches in subsequent steps. In order to imp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/02C09D183/04C09D7/12G02B1/14
CPCB32B7/06B32B7/12B32B27/06B32B27/30B32B2551/00C09J7/401C09J133/06C09K3/16G02B5/00G02B5/30
Inventor 小林弘幸春日充远藤佳子林益史
Owner FUJIMORI KOGYO CO LTD
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