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:
Dec. 21, 1976
Filed:
May. 20, 1975
Applicant:
Inventors:
Maurice Balme, Sainte-foy-les-Lyon, F;
Max Gruffaz, La Mulatiere, F;
Assignee:
Rhone-Poulenc S.A., Paris, F;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
2608 / ; 260 / ; 260 / ; 260 / ; 260 49 ; 260 / ;
Abstract
Polyamines possessing imide groups are obtained by heating at least one unsaturated polyimide of the general formula: ##STR1## WITH AT LEAST ONE POLYAMINE OF THE GENERAL FORMULA:
Balme, Maurice. (1976). Polyamines with imide groups (U.S. Patent No. 3998904). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3998904
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile