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Pressure-sensitive adhesive composition, pressure-sensitive adhesive layer, pressure-sensitive adhesive sheet, optical component and touch panel

An adhesive layer and composition technology, applied in the directions of non-polymer adhesive additives, adhesive types, adhesive additives, etc., can solve the problems of corrosion, easy oxidation, etc. cost reduction effect

Active Publication Date: 2014-08-20
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Copper has excellent electrical conductivity after silver and is useful as a wiring material, but it is known to be easily oxidized and corroded

Method used

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  • Pressure-sensitive adhesive composition, pressure-sensitive adhesive layer, pressure-sensitive adhesive sheet, optical component and touch panel
  • Pressure-sensitive adhesive composition, pressure-sensitive adhesive layer, pressure-sensitive adhesive sheet, optical component and touch panel
  • Pressure-sensitive adhesive composition, pressure-sensitive adhesive layer, pressure-sensitive adhesive sheet, optical component and touch panel

Examples

Experimental program
Comparison scheme
Effect test

manufacture example 1）

[0280]60 parts by weight of tetrahydrodicyclopentadienyl methacrylate (DCPMA), 40 parts by weight of methyl methacrylate (MMA), 3.5 parts by weight of α-thioglycerol as a chain transfer agent, and 3.5 parts by weight of α-thioglycerol as a polymerization solvent 100 parts by weight of toluene was charged into a four-necked flask, and stirred at 70° C. for 1 hour under a nitrogen atmosphere. Then, 0.2 parts by weight of 2,2'-azobisisobutyronitrile as a polymerization initiator was put into a four-necked flask, and reacted at 70°C for 2 hours, and then reacted at 80°C for 2 hours. Then, the reaction solution was put into a temperature environment of 130° C., and the toluene, the chain transfer agent, and the unreacted monomer were removed by drying to obtain a solid acrylic polymer. In addition, this acrylic polymer is called "acrylic polymer (B-1)".

[0281] In addition, the weight average molecular weight (Mw) of the acrylic polymer (B-1) was 5.1×10 3 .

Embodiment 1

[0283] In a monomer mixture composed of 68 parts by weight of 2-ethylhexyl acrylate (2EHA), 14.5 parts by weight of N-vinyl-2-pyrrolidone (NVP) and 17.5 parts by weight of 2-hydroxyethyl acrylate (HEA), Mix 0.035 parts by weight of a photopolymerization initiator (trade name "Irugakua 184", manufactured by BASF Corporation) and 0.035 parts by weight of a photopolymerization initiator (trade name "Irugakiure 651", manufactured by BASF Corporation), and then irradiate ultraviolet light until the viscosity (BH viscometer, No. 5 rotor, 10 rpm, measuring temperature 30°C) reached about 20 Pa·s, and obtained a prepolymer composition in which a part of the above-mentioned monomer components were polymerized.

[0284] Then, 5 parts by weight of the above-mentioned acrylic polymer (B-1), 0.075 parts by weight of hexanediol diacrylate (HDDA), a silane coupling agent (trade name "KBM -403", manufactured by Shin-Etsu Chemical Co., Ltd.) and 0.05 parts by weight of 1,2,3-benzotriazole (tra...

Embodiment 2

[0288] Except having made the usage-amount of 1,2,3-benzotriazole into 0.1 weight part, it carried out similarly to Example 1, and obtained the base material-less double-sided adhesive sheet.

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Abstract

Provided are an optical component having an excellent corrosion inhibition effect while maintaining a high level of adhesion reliability and transparency, as well as a pressure-sensitive adhesive composition and a pressure-sensitive adhesive sheet that can produce such an optical component efficiently and at a low cost. The pressure-sensitive adhesive composition according to the present invention includes a rust inhibitor and a base polymer, characterized in that the base polymer does not or substantially does not contain an acid group-containing monomer as a constituent monomer component. Further provided is a pressure-sensitive adhesive sheet having a pressure-sensitive adhesive layer formed from such pressure-sensitive adhesive composition.

Description

technical field [0001] The present invention relates to an adhesive composition, an adhesive layer, an adhesive sheet, an optical member, and a touch panel. Background technique [0002] In recent years, display devices such as liquid crystal displays (LCDs) and input devices such as touch panels have been widely used in various fields. In the manufacture of these display devices and input devices, etc., the pressure-sensitive adhesive sheet is used for bonding optical members. For example, a transparent pressure-sensitive adhesive sheet is used for bonding optical members in various display devices such as touch panels. [0003] In these display devices and input devices, there is a problem that metal wirings are corroded due to intrusion of moisture, acid gas, salt water, and corrosive components from the external environment to the inside. As sensors have become larger and their frames narrower in recent years, examples with copper wiring have increased. Copper has exc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/02C09J4/06C09J11/06C09J7/00G06F3/041
CPCC09J139/06G02F1/13338C09J133/066C08L2312/06C08L2312/08G06F2203/04103C08L33/04C08L2312/00C09K2323/035C09K2323/05C09K2323/057C09K2323/03B32B2457/202B32B2457/208
Inventor 形见普史野中崇弘岸冈宏昭
Owner NITTO DENKO CORP
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