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:
Aug. 21, 2007
Filed:
Feb. 10, 2003
Masashi Kaji, Tokyo, JP;
Hisashi Yamada, Tokyo, JP;
Masashi Kaji, Tokyo, JP;
Hisashi Yamada, Tokyo, JP;
Nippon Steel Chemical Co., Ltd., Tokyo, JP;
Abstract
This invention relates to epoxy resins containing indole as structural unit, indole resins and resin compositions containing said epoxy resins and indole resins useful for applications such as laminating, molding, casting and adhesion on account of their excellent fire retardance, adhesiveness, moisture resistance and heat resistance. The indole resins of this invention and the epoxy resins obtained therefrom are represented by the following general formulas I and II wherein Ris H, alkyl or the like, X is a crosslinking group represented by —C(RR)— or C(RR)—Ar—C(RR)— (wherein R-Rare H, alkyl or the like and Ar is a benzene or biphenyl ring), G is glycidyl group and n is an integer of 1-20.