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. 24, 1976
Filed:
Jul. 21, 1975
Applicant:
Inventors:
Allen Feinstein, Wheaton, IL (US);
Ellis K Fields, River Forest, IL (US);
Assignee:
Standard Oil Company (Indiana), Chicago, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2603463 ; 260 / ; 260 / ;
Abstract
Novel dianhydrides derived from trimellitic anhydride and adamantane diacetates are polymerized with a diamine to produce the corresponding polyamide, which is subsequently converted to the polyesterimide by heat treatment at temperatures above 500.degree.F.