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:
Jun. 19, 2018
Filed:
Jun. 20, 2013
Hitachi Chemical Company, Ltd., Tokyo, JP;
Shinichi Kosugi, Ibaraki, JP;
Haruaki Sue, Ibaraki, JP;
Yoshitaka Takezawa, Ibaraki, JP;
Hiroyuki Takahashi, Ibaraki, JP;
Naoki Hara, Ibaraki, JP;
Hitachi Chemical Company, Ltd., Tokyo, JP;
Abstract
Provided is a phenolic resin composition containing: an epoxy resin curing agent that contains a hydroxybenzene derivative represented by the following Formula (I) and a phenol resin having at least one partial structure selected from the group consisting of the following Formulae (IIa), (IIb), (IIc) and (IId); and an epoxy resin. In these Formulae, each of R, R, R, Rand Rindependently represents a hydroxy group, a hydrogen atom or an alkyl group; at least two of R, R, R, Rand Rare hydroxy groups; each Ar independently represents at least one group selected from the group consisting of the following Formulae (IIIa) and (IIIb); each of Rand Rindependently represents a hydrogen atom or a hydroxy group; and each of Rand Rindependently represents a hydrogen atom or an alkyl group.