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Surface protective film, and optical part bonded with the surface protective film

A surface protection film, single-sided technology, used in optical components, optics, film/sheet adhesives, etc., can solve the problems of changes in the contamination of the adherend, pollution, etc., so as not to cause deterioration over time , less pollution, the effect of improving productivity and yield

Active Publication Date: 2016-06-08
FUJIMORI KOGYO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the surface of the adherend is easily polluted, and the adhesive force and the contamination of the adherend change over time.

Method used

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  • Surface protective film, and optical part bonded with the surface protective film
  • Surface protective film, and optical part bonded with the surface protective film
  • Surface protective film, and optical part bonded with the surface protective film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0088] Manufacture of Binder Compositions

[0089] Add 90 parts by weight of 2-ethylhexyl acrylate and 10 parts by weight of methoxypolyethylene glycol (400) monomethacrylate , 3 parts by weight of 2-hydroxyethyl acrylate, 0.2 parts by weight of 2,2'-azobisisobutyronitrile as a polymerization initiator, 154 parts by weight of ethyl acetate, stir the content while introducing nitrogen, and heat up to 65 ℃. Furthermore, a polymerization reaction was performed at a temperature of about 65° C. for 6 hours to obtain a polyoxyalkylene group-containing acrylic polymer. 100 parts by weight of the obtained polyoxyalkylene-containing acrylic polymer was stirred and mixed with 0.1 parts by weight of lithium perchlorate as an antistatic agent, thereby manufacturing the binder composition of Example 1 (solid content 40% ).

[0090] Manufacture of surface protection film

[0091] Addition-reactive silicone (manufactured by Dow Corning Toray Co., Ltd., trade name: SRX-345) 3 parts by wei...

Embodiment 2

[0093] Using 1.5 parts by weight of lithium bis(trifluoromethanesulfonyl)imide to replace 0.1 parts by weight of lithium perchlorate in the binder composition of Example 1, the binder composition of Example 2 (solid composition 40%).

[0094] Except having used the adhesive composition of Example 2 instead of the adhesive composition of Example 1, the surface protection film of Example 2 was obtained by the method similar to Example 1.

Embodiment 3

[0096]3 parts by weight of addition-reactive silicone (manufactured by Dow Corning Toray Co., Ltd., trade name: SRX-211), and 0.1 parts by weight of polyether-modified polysiloxane (manufactured by Shin-Etsu Chemical Co., Ltd., trade name: KF352A) 97 parts by weight of a 1:1 mixed solvent of toluene and ethyl acetate, and 0.03 parts by weight of a platinum catalyst (manufactured by Toray Dow Corning Co., Ltd., trade name: SRX-212) were stirred and mixed to form the compound of Example 3. Stripper layer of paint. On the surface of a polyethylene terephthalate film with a thickness of 38 μm, the coating material for the release agent layer of Example 3 is coated with a wire bar so that the thickness after drying becomes 0.1 μm, and then hot air at 120° C. is passed. The peeling film of Example 3 was obtained by drying in a circulating oven for 1 minute.

[0097] Except having used the release film of Example 3 instead of the release film of Example 1, the surface protection fil...

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Abstract

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 static performance, and an optical component using the surface protection film. An adhesive layer (2) is formed on one side of the transparent base film (1), and in the surface protection film (10) on which the release film (5) is pasted on the adhesive layer (2), bonding The agent layer (2) contains an antistatic agent, and the release film (5) is formed by laminating a release agent layer (4) on one side of the resin film (3), and the release agent layer (4) contains dimethylpolysiloxane Oxane as the main component of the release agent and a liquid organosilicon compound at 20°C (7). The adhesive layer (2) is formed of a (meth)acrylic polymer copolymerized with a polyoxyalkylene group-containing compound, or a (meth)acrylic polymer mixed with a polyoxyalkylene group-containing compound .

Description

technical field [0001] The present invention relates to a surface protection film bonded to the surface of optical components (hereinafter, also 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 does not contaminate an adherend less, does not deteriorate over time, and has excellent anti-peeling static performance, and an optical component using the surface protection film. Background technique [0002] When manufacturing and transporting optical products such as displays using optical films such as polarizing plates, retardation plates, lens films for displays, anti-reflection films, hard coat films, and transparent conductive films for touch panels, the above-mentioned The surface of the optical film is bonded with a surface protection film to prevent surface contamination or scratches in subsequent processes. In the visual inspection d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/02C09J133/08B32B27/00B32B27/18C09J133/00C09J133/10
CPCC09J133/04C09J2203/318C09J7/22C09J7/401C09J7/403G02B5/00G02B5/005
Inventor 小林弘幸春日充远藤佳子林益史
Owner FUJIMORI KOGYO CO LTD
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