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:
Dec. 28, 2021
Filed:
May. 01, 2019
Applicant:
Hitachi Chemical Company, Ltd., Tokyo, JP;
Inventors:
Hideyuki Katagi, Tokyo, JP;
Kenji Tanaka, Tokyo, JP;
Yoshitaka Takezawa, Tokyo, JP;
Haruaki Sue, Tokyo, JP;
Shinichi Kosugi, Tokyo, JP;
Assignee:
Showa Denko Materials Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 59/24 (2006.01); C08J 5/18 (2006.01); C08G 59/62 (2006.01);
U.S. Cl.
CPC ...
C08G 59/24 (2013.01); C08G 59/245 (2013.01); C08G 59/62 (2013.01); C08G 59/621 (2013.01); C08J 5/18 (2013.01);
Abstract
An epoxy resin obtained by a reaction of an epoxy resin monomer having a mesogen backbone and having two glycidyl groups in one molecule with a divalent phenol compound having, as substituents, two hydroxyl groups on one benzene ring, in which a number average molecular weight in gel permeation chromatographic measurement is from 600 to 2,500.