Antistatic surface protection film

A surface protection film, antistatic technology, applied in the direction of film/sheet adhesive, adhesive type, coating, etc., to achieve the effect of production efficiency, less pollution and reliable protection

Active Publication Date: 2021-01-12
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

[0148] 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 2-ethylhexyl acrylate of 100 parts by weight, 8-hydroxyoctyl acrylate of 4.5 parts by weight, polypropylene glycol monoacrylate (Polypropylene glycolmonoacrylate) (n=12) of 10 parts by weight in the reaction device, At the same time, 60 parts by weight of solvent (ethyl acetate) was added. 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, then 2.5 parts by weight of Coronate HX (isocyanurate of a hexamethylene diisocyanate compound), 0.1 part by ...

Embodiment 2～6 and comparative example 1～3

[0150] 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 1-3 were obtained. binder composition. In Table 1 and Table 2, the monomers contained (copolymerized) in the acrylic copolymer are (A), (B), (F) and "carboxyl group-containing monomer".

[0151] Table 1

[0152]

[0153] Table 2

[0154]

[0155] 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...

Embodiment 2

[0171] Except that the adhesive composition of Example 1 was set as the adhesive composition of Example 2, and the antistatic agent used in the release agent layer was set as LiCF 3 SO 3 Except that, it carried out similarly to Example 1, and obtained the antistatic surface protection film of Example 2.

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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 performance. In this antistatic surface protection film, an adhesive layer (2) composed of an adhesive composition is formed on one side of a base film (1) composed of a transparent resin, and the surface thereof is bonded. A release agent film (5) laminated with a release agent layer (4), the release agent layer (4) containing a release agent and an antistatic agent mainly composed of dimethyl polysiloxane, the adhesive composition comprising : at least one of (A) alkyl-containing (meth)acrylate monomers with carbon atoms of C4 to C18 and (B) hydroxyl-containing copolymerizable monomers excluding carboxyl-containing copolymerizable monomers an acrylic polymer of at least one copolymer in the body, and also includes (C) a difunctional or higher isocyanate compound, (D) a crosslinking accelerator, and (E) a keto-enol tautomer compound.

Description

technical field [0001] The invention relates to an adhesive composition and a surface protection film. Specifically, it relates to an antistatic surface protection film having antistatic properties. More specifically, the present invention provides a production of an antistatic surface protection film that has less contamination to an adherend, does not deteriorate over time (does not deteriorate over time), and has excellent anti-peeling static performance. method, and an antistatic 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 improve work efficie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/20C09J151/08C09D183/04C09D7/61
CPCC09J4/00C09J2203/318C09J7/385C09J7/401C09J2301/40
Inventor 长仓毅新见洋人长谷川良吉田弘幸菱沼昌世
Owner FUJIMORI KOGYO CO LTD
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