Adhesive composition for conductive members

A technology of conductive components and adhesives, applied in the direction of adhesive types, ester copolymer adhesives, film/sheet adhesives, etc., can solve the problems of oxidative degradation of adherends, achieve corrosion inhibition, The effect of preventing oxidation deterioration

Active Publication Date: 2018-01-26
MITSUBISHI CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such a highly polar component has an oxidizing effect, so the adhesive sheet may cause oxidative deterioration of the adherend due to long-term storage in an environment such as high temperature and high humidity.

Method used

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  • Adhesive composition for conductive members
  • Adhesive composition for conductive members

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0089] With respect to 76 mass parts of 2-ethylhexyl acrylate, 20 mass parts of vinyl acetate, 4 mass parts of acrylic acid copolymer (A-1, mass average molecular weight 400,000) 1kg, add as phosphite compound 5 g of tris(2,4-di-tert-butylphenyl) phosphate (B-1) ("IRGAFOS168" manufactured by BASF Corporation) and 20 g of 4-methylbenzophenone as a photopolymerization initiator were uniformly mixed, Adhesive composition 1 was obtained. Copolymer (A-1) is a copolymer containing 4% by mass of carboxyl group-containing (meth)acrylate or vinyl monomer.

[0090] Next, a peeled polyethylene terephthalate film (Mitsubishi Plastics Co., Ltd., DIAFOIL MRV, thickness 100 μm), and a peeled polyethylene terephthalate film (Mitsubishi Plastics Co., Ltd. Co., Ltd. product, DIAFOIL MRQ, thickness 75 μm) sandwiched the above-mentioned pressure-sensitive adhesive composition 1, and shaped it into a sheet shape using a laminator so that the thickness would be 150 μm.

[0091] By means of the pe...

Embodiment 2

[0093] Add triphosphite as a phosphite compound to 1 kg of a copolymer (A-2, mass average molecular weight: 300,000) consisting of 81 parts by mass of butyl acrylate, 15 parts by mass of methyl methacrylate, and 4 parts by mass of acrylic acid. 1 g of decyl ester (B-2) (“Adekastab 3010” manufactured by ADEKA CORPORATION), 50 g of glyceryl dimethacrylate (C-1) (manufactured by Shin-Nakamura Chemical Co., Ltd., NK Ester 701) as a cross-linking agent, as a photopolymerization 10 g of IRGACURE 184 (manufactured by BASF Corporation) as an initiator and 2 g of IRGANOX 1010 (manufactured by BASF Corporation) as an antioxidant were uniformly mixed to obtain an adhesive composition 2 . Copolymer (A-2) is a copolymer containing 4% by mass of carboxyl group-containing (meth)acrylate or vinyl monomer.

[0094] Next, the aforementioned pressure-sensitive adhesive composition 2 was molded into a sheet shape on a peeled polyethylene terephthalate film (manufactured by Mitsubishi Plastics Cor...

Embodiment 3

[0096] Solids of an ethyl acetate diluted solution of an acrylic copolymer (A-3, mass average molecular weight: 500,000) consisting of 74 parts by mass of butyl acrylate, 24 parts by mass of 2-ethylhexyl acrylate, and 2 parts by mass of acrylic acid Component 1kg, 3,9-bis(decyloxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane (B -3) 1 g of (JPE-10 manufactured by Johoku Chemical Co., Ltd.), 0.5 g of TETRAD-X (C-2) (manufactured by Mitsubishi Gas Chemical Co., Ltd.) as an amine-based cross-linking agent, mixed uniformly to make a bond Dosage Composition3. Copolymer (A-3) is a copolymer containing 2% by mass of carboxyl group-containing (meth)acrylate or vinyl monomer.

[0097] Next, the adhesive composition 3 was coated on a peeled polyethylene terephthalate film (manufactured by Mitsubishi Plastics Corporation, DIAFOIL MRV, thickness 100 μm) so that the thickness after drying became 50 μm, and then Drying was carried out at 70° C. for 5 minutes to obtain a sheet-shaped ...

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Abstract

Provided is an adhesive composition for conductive members, which is capable of preventing oxidation degradation of a bonded member in cases where a conductive member such as an ITO film is bonded thereby, even if the adhesive composition contains an acidic component such as a carboxyl group. Proposed is an adhesive composition for conductive members, which contains a (meth)acrylic copolymer having a mass average molecular weight of from 100,000 to 1,500,000, and which is characterized in that: the (meth)acrylic copolymer has a composition containing 1.2-15% by mass of a (meth)acrylate or vinyl monomer that contains a carboxyl group; and from 1 * 10-4 to 8 * 10-1 part by mass of a phosphite ester compound is contained per 100 parts by mass of the (meth)acrylic copolymer.

Description

technical field [0001] The present invention 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 interferometric modulation display (IMOD), The adhesive composition for conductive members suitable for bonding conductive members such as tin-doped indium oxide (referred to as “ITO”) film and indium-gallium-zinc composite oxide (referred to as “IGZO”) film. Background technique [0002] Image display devices such as personal computers, mobile terminals (PDAs), game consoles, televisions (TVs), auto navigation systems, touch panels, and tablet PCs, such as plasma displays (PDPs), liquid crystal displays (LCDs), and organic EL displays (OLEDs) , inorganic EL display, electrophoretic display (EPD), interferometric modulation display (IMOD) and other image display devices using a flat or curved image display panel, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/04C09J7/10C09J11/06C09J133/06G02F1/1333
CPCC09J11/06C09J133/04C09J133/06G02F1/1333C09J7/10C09J7/29B32B7/12B32B27/08C09J2203/318
Inventor 新美嘉穗儿稻永诚
Owner MITSUBISHI CHEM CORP
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