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. 19, 2017
Filed:
May. 15, 2014
Dic Corporation, Tokyo, JP;
DIC CORPORATION, Tokyo, JP;
Abstract
Disclosed is a method for producing a biphenyl-skeleton-containing epoxy resin represented by Formula (1) described below including a step of allowing polyvalent hydroxy biphenyl obtained by a production step including a regioselective cross-coupling reaction to react with epihalohydrin. (In the formula, k1 and l1 each represent an integer of 0 to 4, m and n each represent an integer of 1 to 5, Rand Reach independently represent a hydrocarbon group having 1 to 10 carbon atoms which may have a substituent group, and Rand Rmay be identical to each other or different from each other. (Provided that left and right phenyl structures of a biphenyl skeleton are different from each other.)