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Surface protection film and optical components

A surface protection film and composition technology, applied in other chemical processes, chemical instruments and methods, film/sheet adhesives, etc., can solve problems such as static electricity, deterioration, surface resistivity or peeling static voltage rise

Active Publication Date: 2020-07-21
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the above-mentioned conductive polymer is used to form an antistatic layer, PSS (corresponding to a dopant) is detached from PEDOT with the passage of time, and an increase in surface resistivity or peeling static voltage occurs, and there is There may be problems such as an increase in surface resistivity (deterioration) associated with oxidation degradation or photodegradation
In addition, if the surface resistivity increases (deterioration), etc., static electricity will be generated when the surface protective film is peeled off from the adherend, which may cause problems.

Method used

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  • Surface protection film and optical components
  • Surface protection film and optical components
  • Surface protection film and optical components

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 11

[0321]

[0322] Apply the polyurethane-based adhesive 11 solution on the surface of the above-mentioned substrate with an antistatic layer (substrate with an antistatic layer) on the surface opposite to the antistatic layer, and heat at 130°C for 1 minute to form a 10 μm thick Adhesive layer. Then, the silicon-treated surface of a polyethylene terephthalate film (thickness: 25 μm) that was silicon-treated on one side as a separator was bonded to the surface of the adhesive layer to prepare a surface protection film.

Embodiment 15

[0324]

[0325] Apply the above-mentioned siloxane-based adhesive 15 solution on the surface of the above-mentioned substrate with an antistatic layer (substrate with an antistatic layer) opposite to the antistatic layer, and heat at 150°C for 1 minute to form a 10 μm thick adhesive layer. Then, the silicon-treated surface of a polyethylene terephthalate film (thickness: 25 μm) that was silicon-treated on one side as a separator was bonded to the surface of the adhesive layer to prepare a surface protection film.

Embodiment 2～10、 Embodiment 17、 Embodiment 18 and comparative example 1～5

[0327] Based on the mixing contents of Tables 1 to 3, the same operation as in Example 1 was performed to produce a surface protection film.

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Abstract

The present invention provides a surface protection film and an optical member capable of achieving antistatic properties and temporal stability of peeling static voltage. The surface protection film of the present invention comprises: a substrate having a first surface and a second surface, an antistatic layer provided on the first surface of the substrate, and an adhesive composition formed on the second surface of the substrate. The formed adhesive layer, the surface protection film is characterized in that: the above-mentioned antistatic layer is formed of an antistatic agent composition, and the antistatic agent composition contains polyaniline sulfonic acid and polyanionic doping as conductive polymer components. For the heteropolythiophenes and the binder, the ratio (mass ratio) of the aforementioned polyaniline sulfonic acid to the aforementioned polyanion-doped polythiophenes is 90:10˜10:90.

Description

technical field [0001] The present invention relates to a surface protection film and an optical component. [0002] The present invention relates to a surface protection film comprising: a substrate having a first surface and a second surface, an antistatic layer provided on the first surface of the substrate, and the above-mentioned substrate provided on the substrate. Specifically, the adhesive layer on the second surface relates to a surface protection film having an antistatic function. The surface protection film according to the present invention is suitable for sticking to plastic products or the like that are prone to static electricity. Among them, in particular, it can be used as a surface protection for the purpose of protecting the surface of optical members (for example, polarizers, wave plates, retardation plates, optical compensation films, reflective sheets, and brightness enhancement films used in liquid crystal displays, etc.). membrane. Background techn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/25C09J7/30C09J11/06C09J11/08C09J9/02C09J133/04C09J175/04C09J183/04C08J7/044C08L67/02
CPCB32B27/18B32B27/36C09J9/02C09J11/08C09J133/00C09J175/04C09J183/04C09K3/16C09J7/20
Inventor 片冈贤一渡部奈津子三井数马天野立巳
Owner NITTO DENKO CORP