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Cationic polymerizable adhesive composition and anisotropically electroconductive adhesive composition

A cationic polymerization, anisotropic technology, used in conductive adhesives, unsaturated ether copolymer adhesives, film/sheet adhesives, etc., can solve the storage of anisotropic conductive adhesive compositions Unsatisfactory stability, etc.

Inactive Publication Date: 2007-04-25
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this anisotropic conductive adhesive composition is unsatisfactory in terms of storage stability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0041] Manufacture of Anisotropic Conductive Adhesive Film

[0042] 1.0 g of cycloaliphatic epoxy resin (trade name: Cyracure UVR6128, manufactured by Union Carbide Japan Co., Ltd., epoxy equivalent: 200), 5.0 g of glycidyl-containing novolac epoxy resin (trade name: Epikote 154, manufactured by Yuka Shell Epoxy Co., Ltd., epoxy equivalent: 178), 4.0 g of phenoxy resin (PKHC, manufactured by Phenoxy Associates Co., Ltd., OH equivalent: 284) and 0.009 g of N,N-dimethyl-metaform Aniline was mixed with 11.0 g of a mixed organic solvent of a good solvent and a poor solvent shown in Table 1, and the mixture was stirred until a uniform solution was formed. Conductive particles (particles obtained by forming a nickel layer on the surface of a divinylbenzene copolymer and further superimposing a gold layer thereon, average particle size: 5 μm) were added thereto so as to occupy 3% by volume of the final solid, and stirring was continued until the conductive particles are completely...

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Abstract

In a cationic polymerizable adhesive composition comprising (A) a cationic polymerizable monomer selected from an epoxy monomer, a vinyl ether monomer, or a mixture thereof; (B) a cationic polymerization catalyst; and (C) a solvent for the cationic polymerization catalyst, a mixture of a good solvent and a poor solvent for the cationic polymerization catalyst is used as the solvent.

Description

technical field [0001] The present invention relates to an adhesive film and an anisotropic conductive adhesive film. Background technique [0002] Cationically polymerizable compositions utilizing cationic polymerization are widely used in, for example, the fields of coatings, inks and adhesives. Especially when applied to adhesives, a cationically polymerizable composition is advantageous because of its high cure speed and absence of oxygen interference. However, cationic polymerization catalysts need to be used to initiate cationic polymerization. Also, in a composition in which a cationic polymerizable compound coexists with a cationic polymerisation catalyst, due to its high reactivity, there is a problem of gelation during storage, thereby shortening the storage time. [0003] As a method of solving these problems, it has hitherto been to use a compound having cationic polymerizability immediately before using a cationic polymerization cat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J163/00C09J129/10C08G59/68H01R4/04C09J7/02C09J9/02H01B1/22H05K3/32
CPCC09J163/00H01B1/22C08G59/68H05K3/323
Inventor 山口裕顕秋山良太
Owner 3M INNOVATIVE PROPERTIES CO
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