Adhesive composition, adhesive film and surface protection film

A technology of adhesive and composition, applied in the field of surface protective film, can solve the problems such as the inability to meet the performance requirements of the surface protective film, and achieve the effect of preventing the residual phenomenon of the adhesive and excellent antistatic performance

Active Publication Date: 2017-09-26
FUJIMORI KOGYO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, even if the performance requirements of the individual items in the above (1) to (4) can be met, all performance requirements required by the adhesive layer of the surface protection film cannot be met.

Method used

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  • Adhesive composition, adhesive film and surface protection film
  • Adhesive composition, adhesive film and surface protection film
  • Adhesive composition, adhesive film and surface protection film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0100] 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 90 parts by weight, 8-hydroxyoctyl acrylate of 8.5 parts by weight, the acrylic acid of 1.0 parts by weight in the reaction device, and added the solvent (ethyl acetate) of 60 parts by weight simultaneously . Then, 0.1 parts by weight of azobisisobutyronitrile as a polymerization initiator was dropped over 2 hours, and reacted at 65° C. for 6 hours to obtain acrylic acid used in Example 1 with a weight average molecular weight of 500,000. Polymer-like solution 1. A part of the acrylic polymer was taken and used as a sample for acid value measurement described later.

Embodiment 2～6 and comparative example 1～3

[0102] Except that the composition of each monomer was adjusted as described in (A) to (C) in Table 1, the above-mentioned acrylic polymer solution 1 used in Example 1 was operated in the same manner to obtain the Acrylic polymer solutions in Examples 2-6 and Comparative Examples 1-3.

[0103] In addition, in Table 1 and Table 2, (A) is an alkyl (meth)acrylate as the main component, (B) is a copolymerizable monomer containing a hydroxyl group, and (C) is a copolymerizable monomer containing a carboxyl group. monomer.

[0104] Table 1

[0105]

[0106]

[0107] [Example 1]

[0108] To the acrylic polymer solution 1 of Example 1 manufactured as described above, 2.0 parts by weight of 1-octylpyridinium dodecylbenzenesulfonate, 0.1 part by weight of polyether-modified silicone with an HLB of 7 were added. Alkane compound (the weight average molecular weight Mw is 10000) was stirred, and 1.0 parts by weight of Coronate HX (Coronate HX) (isocyanurate of hexamethylene diisocy...

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Abstract

PROBLEM TO BE SOLVED: To provide an adhesive composition which has excellent antistatic performance, an excellent balance of adhesiveness at peeling rates in a low speed region and a high speed region, and further excellent durability performance and rework performance, and to provide an adhesive film and a surface protective film.SOLUTION: There is provided an adhesive composition containing an antistatic agent, which comprises: 100 pts.wt. of an acrylic polymer containing as a main component an alkyl (meth)acrylate having a C4 to C10 alkyl group; 85 to 98.5 pts.wt. of an alkyl (meth)acrylate being a main component; 0.1 to 15 pts.wt. of a hydroxyl group-containing copolymerizable monomer; 0.1 to 2 pts.wt. of a carboxyl group-containing copolymerizable monomer; and 0.1 to 5 pts.wt. of a crosslinking agent. The acrylic polymer has an acid value of 0.01 to 8.0. The antistatic agent is an ionic compound having a melting point of 30 to 50°C and contains a polyether-modified siloxane compound having an HLB value of 7 to 15.

Description

technical field [0001] The present invention relates to an adhesive composition having antistatic properties, an adhesive film in which an adhesive layer having antistatic properties is formed on at least one side of a resin film using the adhesive composition, and a surface protection film . [0002] Moreover, this invention relates to the surface protection film used in the manufacturing process of a liquid crystal display. More specifically, it relates to a device for protecting the surface of optical components such as polarizing plates, retardation plates, and antireflection films by sticking on the surfaces of optical components such as polarizing plates, retardation plates, and antireflection films constituting liquid crystal displays. Adhesive composition for a surface protection film, and a surface protection film using the same. Background technique [0003] Conventionally, in the manufacturing process of optical components such as polarizers, retardation plates,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J133/08C09J11/06C09J11/08C09J7/02
CPCC09J4/06C09J7/20C09J9/02C09J133/06G02B5/3033
Inventor 长仓毅岛口龙介长谷川良
Owner FUJIMORI KOGYO CO LTD
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