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Antistatic surface protection film

A surface protection film and antistatic technology, applied in the direction of film/sheet adhesive, graft polymer adhesive, adhesive type, etc., to achieve production efficiency, reliable protection, and excellent anti-stripping static performance Effect

Active Publication Date: 2017-05-31
FUJIMORI KOGYO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0160] Nitrogen gas was introduced into a reaction apparatus equipped with a stirrer, a thermometer, a reflux condenser, and a nitrogen introduction pipe, thereby replacing the air in the reaction apparatus with nitrogen. Then, added 100 parts by weight of 2-ethylhexyl acrylate, 3.0 parts by weight of 8-hydroxyoctyl acrylate, 10 parts by weight of polypropylene glycol monoacrylate (forming polyalkylene glycol chain The average repetition number of alkylene oxide n=12), and 60 parts by weight of solvent (ethyl acetate) was added at the same time. Then, 0.1 part by weight of azobisisobutyronitrile as a polymerization initiator was dropped over 2 hours, and reacted at a temperature of 65°C for 6 hours to obtain the acrylic copolymer solution of Example 1 with a weight average molecular weight of 500,000. To this acrylic copolymer solution, 8.5 parts by weight of acetylacetone was added and stirred, and then 2.0 parts by weight of Coronate HX (Coronate HX, an isocyanurate of a hex...

Embodiment 2～6 and comparative example 1～2

[0162] Except that each composition of the adhesive composition of Example 1 was adjusted as described in Table 1 and Table 2, the same operation was carried out as in Example 1, and the adhesives of Examples 2-6 and Comparative Examples 1-2 were obtained. binder composition.

[0163] Table 1

[0164]

[0165] Table 2

[0166]

[0167] Table 1 and Table 2 are tables that divide the entire table showing the compounding ratio of each component into two parts, and the values ​​in parentheses all represent parts by weight of each component obtained by setting the total amount of group (A) as 100 parts by weight. value. In addition, the compound names corresponding to the abbreviations of the components used in Table 1 and Table 2 are shown in Table 3 and Table 4. In addition, Coronate (コロネート, registered trademark) HX, Coronate HL, and Coronate L are trade names of Nippon Polyurethane Industry Co., Ltd., and Takenate (タケネート, registered trademark) D-140N, D-127N, D-110N is...

Embodiment 2～6

[0183] The antistatic surface protection films of Examples 2 to 6 were obtained in the same manner as in Example 1, except that each adhesive composition of Example 1 was adjusted to the adhesive compositions of Examples 2 to 6. .

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Abstract

The present invention provides an antistatic surface protection film that has less contamination to an adherend, does not deteriorate over time, and has excellent anti-peeling static electricity performance, which is sequentially passed through: on one side of a base film (1) made of a transparent resin Formation of an adhesive combination consisting of an acrylic polymer containing a copolymer, further containing (F) a difunctional or higher isocyanate compound, (G) a crosslinking accelerator, and (H) a keto-enol tautomer compound The process of the adhesive layer (2) composed of material; the release film (5) formed by laminating the release agent layer (4) containing an antistatic agent on one side of the resin film (3) is passed through the release agent layer (4) ) is bonded to the surface of the adhesive layer (2), and the release agent layer (4) contains a release agent mainly composed of dimethyl polysiloxane, which is a liquid polysiloxane at 20°C. Formed from a resin composition of a compound and an antistatic agent, the peeling static voltage of the adhesive layer (2) is ±0.6kV or less.

Description

technical field [0001] The present invention relates to an antistatic surface protective 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, there is provided an antistatic surface protection film that has less contamination to an adherend, does not deteriorate over time, and has excellent anti-peeling static performance. 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 improve work efficiency by saving the labor and time of peeling o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/02C09J151/08C09J133/08C09J11/06G02B1/16
CPCB32B7/02B32B7/06B32B7/12B32B27/08B32B38/10
Inventor 长仓毅岛口龙介长谷川良小林弘幸春日充新见洋人
Owner FUJIMORI KOGYO CO LTD
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