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:
Nov. 26, 1991
Filed:
Aug. 30, 1990
Masashi Kaji, Kitakyushu, JP;
Takanori Aramaki, Fukuoka, JP;
Norito Nakahara, Kitakyushu, JP;
Yasuharu Yamada, Kitakyushu, JP;
Nippon Steel Chemical Co., Ltd., Tokyo, JP;
Abstract
The invention relates to naphthol-based epoxy resins of the general formula (I) ##STR1## in which A is a naphthalene nucleus, R is hydrogen or methyl, and n is an integer from 0 to 15, naphthol aralkyl resins which are intermediates for said epoxy resins, a process for the preparation of said naphthol aralkyl resins, and epoxy resin compositions containing said naphthol-based epoxy resins which are highly heat- and moisture-resistant, possess excellent impact strength and other mechanical properties, and are useful for such applications as lamination, molding, casting, and adhesion.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile