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A surface protection film and an optical element with the surface protection film

A surface protective film, single-sided technology, used in optical components, optics, film/sheet adhesives, etc., can solve the problems of surface protective film floating, air bubbles mixed into adhesive, and adhesion reduction, etc. Achieve no degradation over time, anti-peeling electrostatic performance, reliable protection, and less pollution

Active Publication Date: 2016-03-09
FUJIMORI KOGYO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, when it is used for an optical film having irregularities on the surface, such as a polarizing plate that has been treated with anti-glare for anti-glare, there will be a problem that the adhesive cannot follow the irregularities on the surface of the optical film and bubbles may be mixed, or , due to the reduction of the bonding area between the optical film and the adhesive, the adhesive force is reduced, and the surface protection film floats or peels off during use

Method used

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  • A surface protection film and an optical element with the surface protection film
  • A surface protection film and an optical element with the surface protection film
  • A surface protection film and an optical element with the surface protection film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] 3.125 parts by weight of a long-chain alkyl-containing resin as a release agent (product name is "TessFine (Tessfine) 303", manufactured by Hitachi Chemical Co., Ltd.), 10 parts by weight of bis(fluorosulfonyl) Lithium amine 10% ethyl acetate solution, 96.875 parts by weight of toluene and ethyl acetate as a 50:50 mixed solvent, 0.09 parts by weight of catalyst (product name is "Dryer (ドライyaー) 900", manufactured by Hitachi Chemical Co., Ltd.) mixed Together and stirring and mixing, the coating material which forms the release agent layer of Example 1 was prepared. Using a Meller rod, the coating material for the release agent layer of Example 1 was coated on the surface of a polyethylene terephthalate film having 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 circulation oven of 120 degreeC, and obtained the peeling film of Example 1. On the other hand, 2-ethylhexyl acrylate and 2-hydroxyethyl acrylate are c...

Embodiment 2

[0084] With 8.33 parts by weight of a release agent (product name is "Piroiru (ピーロイル) HT", manufactured by Yifangsha Oil Industry Co., Ltd.) with a long-chain alkyl-containing resin as the main component, 10 parts by weight of bis(trifluoromethanesulfonate A 10% ethyl acetate solution of lithium imide, 91.67 parts by weight of toluene and a 50:50 mixed solvent of ethyl acetate were mixed together and stirred to prepare the coating for forming the release agent layer of Example 2. Using a Meller rod, the coating material for the release agent layer of Example 2 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 circulation oven of 120 degreeC, and obtained the peeling film of Example 2. Except having used the release film of Example 2 instead of the release film of Example 1, it carried out similarly to Example 1, and obtained the protective film of Exam...

Embodiment 3

[0086] 1.5 parts by weight of a release agent mainly composed of a long-chain alkyl group-containing resin (the product name is "Piroiru1010S", manufactured by Yibangsha Oil Industry Co., Ltd.), 10 parts by weight of lithium bis(fluorosulfonyl)imide 10 % ethyl acetate solution, 98.5 parts by weight of toluene, a mixed solvent of ethyl acetate and isopropanol at a ratio of 50:40:10 were mixed together and stirred to prepare the coating for forming the release agent layer of Example 3. Using a Meller rod, the paint for the release agent layer of Example 3 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 circulation oven of 120 degreeC, and obtained the peeling film of Example 2. Except having used the release film of Example 3 instead of the release film of Example 1, it carried out similarly to Example 1, and obtained the protective film of Example 3. ...

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Abstract

The invention provides a surface protection film which can be applied to optical films with uneven surfaces, have little pollution to an attached body and have no time-dependent changes in terms of low-pollution to the attached body. The surface protection film has no time-dependent degradation in excellent anti-stripping electrostatic properties. An optical element using the surface protection film is also provided. According to the surface protection film, an adhesive layer (2) is formed on a single surface of a base material film (1) made of transparent resin, and then a stripping film (5) with a stripping agent layer (4) is attached to the adhesive layer (2). The stripping film (5) is formed by laminating the stripping agent layer (4) on a single-surface layer of a resin film (3). The stripping agent layer (4) contains a stripping agent with resin containing long-chain alkyl as main components and an antistatic agent not reacting with the stripping agent. The antistatic agent is transferred from the stripping film (5) to the surface of the adhesive layer (2) so as to reduce stripping electrostatic pressure during stripping of the adhesive layer (2) from the attached 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 "optical film") such as polarizing plates, retardation plates, and lens films for displays. More specifically, to provide a surface protection film with less contamination to an adherend, and further to provide a surface protection film that does not deteriorate over time (does not deteriorate with time) and has excellent anti-peeling electrostatic performance, and An optical part bonded with this 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 contam...

Claims

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Application Information

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IPC IPC(8): C09J7/02C09J133/04G02B1/10
CPCB32B7/12B32B27/30C09J133/08G02B5/30
Inventor 小林弘幸春日充新见洋人木俣绘美子林益史
Owner FUJIMORI KOGYO CO LTD
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