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PSA sheet for conductive member, conductive member laminate, and image display device

A technology for conductive members and adhesive sheets, applied in the field of conductive member laminates and adhesive sheets for conductive members, can solve the problems of oxidative deterioration of adherends, and achieve the effects of good curing characteristics, foam resistance and reliability curing characteristics

Active Publication Date: 2021-03-02
MITSUBISHI CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since such highly polar components have an oxidizing effect, the PSA sheet may cause oxidative deterioration of the adherend in an environment such as high temperature and high humidity or due to long-term storage.

Method used

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  • PSA sheet for conductive member, conductive member laminate, and image display device
  • PSA sheet for conductive member, conductive member laminate, and image display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0166] Add propoxylate as a crosslinking agent to 1 kg of a copolymer (A-1, mass average molecular weight: 400,000) formed by 76 parts by mass of 2-ethylhexyl acrylate, 20 parts by mass of vinyl acetate, and 4 parts by mass of acrylic acid. 200 g of alkylated pentaerythritol polyacrylate (manufactured by Shin-Nakamura Chemical Industry Co., Ltd., trade name "ATM-4PL"), and 4-methylbenzophenone and 2,4,6-trimethyl 10 g of a mixture of benzophenone (manufactured by Lamberti, trade name "Esacure TZT") was uniformly mixed to obtain a resin composition for an intermediate layer.

[0167] Two sheets of polyethylene terephthalate films (manufactured by Mitsubishi Plastics, Inc., trade name "Diafoil MRF", thickness 75 µm, and Mitsubishi Plastics, Inc., trade name "Diafoil MRT", thickness 38 μm) sandwiched the resin composition for an intermediate layer, and shaped into a sheet shape so that the thickness of the adhesive sheet became 80 μm, to prepare a resin sheet for an intermediate ...

Embodiment 2

[0174] Add 1,2 , 3 g of 3-triazole, 3 g of tridecyl phosphite (manufactured by ADEKA Corporation, trade name “ADK STAB 3010”) as a phosphite compound, pentaerythritol triacrylate and pentaerythritol tetraacrylate (East Asia Synthesize 20 g of "ARONIX M-306", manufactured by Co., Ltd., and 10 g of 1-hydroxy-cyclohexyl phenyl ketone (Irgacure 184, manufactured by BASF Corporation) as a photopolymerization initiator, and mix them uniformly to obtain a resin for an adhesive layer combination.

[0175] Next, the resin composition for the pressure-sensitive adhesive layer was formed on a polyethylene terephthalate film (manufactured by Mitsubishi Plastics, Inc., Diafoil MRV, thickness 100 μm) that had undergone release treatment so as to have a thickness of 150 μm. After the sheet was formed, it was covered with a peeled polyethylene terephthalate film (manufactured by Mitsubishi Plastics, Inc., trade name "Diafoil MRQ", thickness 75 µm). The cumulative light intensity at a wavele...

Embodiment 3

[0177] As the phosphite compound, 3,9-bis(decyloxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane (Johoku Chemical Co., Ltd. manufactured, trade name "JPE-10") 3g, it carried out similarly to Example 2, and produced the adhesive sheet laminated body 3. The following various evaluations were performed on the pressure-sensitive adhesive sheet laminate 3 . The results are shown in Table 1.

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Abstract

To provide a pressure-sensitive adhesive sheet for a conductive member, a conductive member laminate, and an image display device that do not corrode a conductive member, for example, a transparent conductive layer that does not corrode, has oxidation degradation resistance, and good curing properties. In particular, to provide an adhesive for conductive members suitable for laminating conductive members such as transparent conductive layers in image display devices using image display panels such as plasma displays (PDP), liquid crystal displays (LCD), and organic EL displays (OLEDs). Composite. The adhesive sheet for conductive members has an adhesive layer formed of an adhesive composition containing a (meth)acrylic copolymer, a metal corrosion inhibitor, and a phosphite compound.

Description

technical field [0001] The present invention relates to an adhesive sheet for a conductive member, a conductive member laminate using the same, and the like. In particular, it relates to an image display device using an image display panel such as a plasma display (PDP), a liquid crystal display (LCD), an organic EL display (OLED), an inorganic EL display, an electrophoretic display (EPD), an interference modulation display (IMOD), etc. Adhesive sheets for conductive members suitable for bonding conductive members such as transparent conductive layers, etc. Background technique [0002] In image display devices such as personal computers, mobile terminals (PDAs), game consoles, televisions (TVs), car navigation systems, touch panels, pen tablets, etc., such as plasma displays (PDPs), liquid crystal displays (LCDs) , organic EL display (OLED), inorganic EL display, electrophoretic display (EPD), interference modulation display (IMOD) and other flat or curved image display de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/40B32B27/00B32B27/18B32B27/30C09J4/02C09J11/06C09J133/00G02F1/1333C09J7/10
CPCB32B27/00B32B27/18B32B27/30C09J133/00C09J2433/00C08K5/521C08K5/3472C09J2203/318C08K5/524G02F2202/28C09J7/10C09J2301/408C09J7/00C09J11/06C09J7/28G02F1/1333
Inventor 新美嘉穗儿山本亮太稻永诚吉川秀次郎
Owner MITSUBISHI CHEM CORP