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:
Apr. 14, 1998
Filed:
Feb. 21, 1997
Applicant:
Inventors:
Paul Wagner, Dusseldorf, DE;
Frank Dobert, Koln, DE;
Torsten Groth, Odenthal, DE;
Winfried Joentgen, Koln, DE;
Assignee:
Bayer AG, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
562553 ; 528363 ;
Abstract
Polymers with recurring succinyl units are prepared by reaction of maleic anhydride, maleic acid or fumaric acid with condensed liquid ammonia and polymerization of the resulting reaction product.