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:
Sep. 26, 2023
Filed:
Dec. 31, 2019
Hitachi Chemical Company, Ltd., Tokyo, JP;
Hirokuni Ogihara, Tokyo, JP;
Fumio Furusawa, Tokyo, JP;
Shinya Nakamura, Tokyo, JP;
Takatoshi Ikeuchi, Tokyo, JP;
Takashi Yamamoto, Tokyo, JP;
RESONAC CORPORATION, Tokyo, JP;
Abstract
An epoxy resin composition includes: (A) an epoxy resin containing a compound represented by the following Formula (I); (B) a phenol resin containing a compound represented by the following Formula (II); and (C) a dihydroxynaphthalene compound containing a compound represented by the following Formula (III). In Formula (I), R represents a hydrogen atom, and n represents an integer from 0 to 10. In Formula (II), Rrepresents a hydrogen atom, an alkyl group having from 1 to 6 carbon atoms, or an alkoxy group having 1 or 2 carbon atoms, and each Rmay be the same as or different from another R. n represents an integer from 0 to 10. In Formula (III), Rrepresents a hydrogen atom, an alkyl group having from 1 to 6 carbon atoms, or an alkoxy group having 1 or 2 carbon atoms.