Pressure-sensitive adhesive layer for transparent conductive film, transparent conductive film with pressure-sensitive adhesive layer, transparent conductive laminate, and touch panel

A transparent conductive film, transparent conductive technology, applied in the direction of film/sheet adhesive, non-polymer adhesive additive, adhesive type, etc., can solve the problem of poor change over time and narrow operating temperature range and other problems, to achieve the effect of corrosion inhibition, good durability, and satisfactory durability

Active Publication Date: 2013-04-10
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Resistive touch panels are excellent in terms of cost and precision, but due to the two-piece structure of the film (electrode) and glass, the transmittance is lower than other methods, so the outer part (frame) of the effective screen is wider than the effective screen. In addition, since the film (electrode) is pressed down to short-circuit the structure, it has the disadvantages of a narrow operating temperature range and a poor change over time.

Method used

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  • Pressure-sensitive adhesive layer for transparent conductive film, transparent conductive film with pressure-sensitive adhesive layer, transparent conductive laminate, and touch panel
  • Pressure-sensitive adhesive layer for transparent conductive film, transparent conductive film with pressure-sensitive adhesive layer, transparent conductive laminate, and touch panel
  • Pressure-sensitive adhesive layer for transparent conductive film, transparent conductive film with pressure-sensitive adhesive layer, transparent conductive laminate, and touch panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0117] (Preparation of water dispersion)

[0118] Add 1000 parts of butyl acrylate, 50 parts of acrylic acid, 23 parts of single [poly(oxypropylene) methacrylate] phosphate (average degree of polymerization of propylene oxide 5.0), and 0.34 parts of 3-methacryloyloxy in the container Methoxypropyl-triethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., KBM-503) was used as a raw material and mixed to obtain a monomer mixture. Next, with respect to 600 parts of the monomer mixture prepared in the above ratio, 13 parts of Aqualon HS-10 (manufactured by Daiichi Kogyo Pharmaceutical Co., Ltd.) was added as a reactive emulsifier, 360 parts of ion exchange water, and a homogenizer (special Kikka Kogyo Co., Ltd.) was stirred at 7000 rpm for 3 minutes to prepare a monomer emulsion.

[0119] Next, 200 parts and 350 parts of ion-exchanged water in the monomer emulsion prepared above were put into a reaction vessel equipped with a condenser, a nitrogen introduction tube, a thermometer...

Embodiment 2

[0133] The addition amount of 10% ammonia water in the (preparation of water-dispersed acrylic adhesive) of Example 1 was changed from 3 parts to 10 parts, and the drying in the (formation of adhesive layer) of Example 1 Except that the conditions were changed from 10 minutes at 130°C to 10 minutes at 90°C, the same procedure as in Example 1 was carried out to produce a transparent conductive film with an adhesive layer.

Embodiment 3

[0135] Except that the addition amount of 10% ammonia water in the (preparation of water-dispersed acrylic adhesive) of Example 1 was changed from 3 parts to 0.5 parts, the same procedure as in Example 1 was carried out to produce an adhesive Layer of transparent conductive film.

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Abstract

This pressure-sensitive adhesive layer for transparent conductive film has a thickness of 10 to 100[mu]m, and is formed from an aqueous-dispersion type acrylic pressure-sensitive adhesive which consists of an aqueous dispersion that comprises both a water-dispersible (meth)acrylic polymer and a water -soluble basic component, said water-dispersible (meth)acrylic polymer containing 1 to 8 parts by weight of copolymerized monomer units derived from a carboxyl-containing monomer relative to 100 parts by weight of the main monomer units derived from an alkyl (meth)acrylate wherein the alkyl moiety has 4 to 14 carbon atoms. Further, the pressure-sensitive adhesive layer contains 200 to 500000ng of the water-soluble basic component per square centimeter (cm2), as determined on the basis of the pressure -sensitive adhesive layer. The pressure-sensitive adhesive layer for transparent conductive film exhibits satisfactory durability even under high-temperature conditions and even under high-temperature and high-humidity conditions, and can inhibit corrosion even under high-temperature and high-humidity conditions.

Description

Technical field [0001] The present invention relates to an adhesive layer for a transparent conductive film and a transparent conductive film with an adhesive layer having the adhesive layer. In addition, the present invention relates to a transparent conductive laminate using the aforementioned transparent conductive film with an adhesive layer. These transparent conductive films with adhesive layers and transparent conductive laminates are suitably processed and used in display types such as liquid crystal displays and electroluminescent displays, optical methods, ultrasonic methods, capacitive, resistive film types, etc. Transparent electrodes such as touch panels. The adhesive layer for transparent conductive films of the present invention and the like are suitably used for touch panels. Background technique [0002] Conventionally, as a transparent conductive film, so-called conductive glass in which a thin film of indium oxide is formed on glass is known. Conductive glas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/00B32B9/00B32B27/30C09J7/02C09J11/06G06F3/041H01B5/14C09J7/22C09J7/38
CPCB32B7/06B32B7/12B32B2405/00B32B2457/202C09J133/08G06F3/044C08K3/28C09J2203/318C09J2433/00C09J7/38C09J7/385C09J7/22Y10T428/2848C09J2301/408C09J7/29G06F3/0412G06F3/0416C09J133/10C09J11/04C09J143/02B32B27/306B32B2457/208B32B2307/412
Inventor 细川敏嗣乾州弘石井孝证佐竹正之村上亚衣山崎由佳
Owner NITTO DENKO CORP
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