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. 19, 1991
Filed:
Apr. 11, 1990
Applicant:
Inventors:
Keiichiro Wada, San Marcos, TX (US);
Patrick E Cassidy, Austin, TX (US);
William S Hager, Austin, TX (US);
Assignee:
Nippon Steel Chemical Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528185 ; 528176 ; 528183 ;
Abstract
This invention relates to a poly(azomethine-ester) having a repeating structural unit of the following formula [1] ##STR1## wherein Ar.sub.1 and Ar.sub.2, which may be the same or different, are selected from phenylene or divalent organic radicals terminated with an aromatic ring on the both ends of the each radical, respectively, and R.sub.1 is selected from hydrogen, alkyl, alkoxy or aryl radical. The poly(azomethine-esters) according to the present invention are soluble in common organic solvents and have film-forming ability and heat-resistance.