The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 11, 2017
Filed:
Mar. 27, 2014
Showa Denko K.k., Tokyo, JP;
Hiroshi Uchida, Tokyo, JP;
Yoshitaka Ishibashi, Tokyo, JP;
SHOWA DENKO K.K., Tokyo, JP;
Abstract
[Problem] To provide: a conductive adhesive which contains an epoxy (meth)acrylate resin and which can form a bonded zone that is not susceptible to being deteriorated by halogen; an anisotropic conductive film; and electronic devices using both. [Solution] A conductive adhesive and an anisotropic conductive film which each contain a conductive filler and a binder resin, wherein: the binder resin comprises an epoxy (meth)acrylate resin that is a product of addition reaction of (meth)acrylic acid and an epoxy compound having a sum of total chlorine atom concentration and total bromine atom concentration of 300 mass ppm or less, preferably 50 mass ppm or less; and the conductive filler is dispersed in the binder resin which comprises such an epoxy (meth)acrylate resin. The epoxy (meth)acrylate resin is preferably prepared by subjecting a starting compound (substrate) having a carbon-carbon double bond to epoxidation of the double bond with an oxidizing agent consisting of hydrogen peroxide, and then subjecting the obtained epoxy compound to addition reaction with (meth)acrylic acid.