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:
Mar. 23, 1993
Filed:
Sep. 16, 1991
Applicant:
Inventors:
Anthony J O'Lenick, Jr, Lilburn, GA (US);
J Michael Clumpner, Delavan, WI (US);
Assignee:
LCE Partnership, Janesville, WI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
564493 ; 564490 ; 564491 ; 564503 ; 564505 ; 564508 ; 564511 ; 558448 ; 558450 ; 558452 ; 558467 ;
Abstract
The present invention relates to novel methods of stabilizing polymers of acrylonitrile. The polymers are stabilized by the inclusion of small amounts of stable free radicals compounds which act to inhibit the homopolymerization of the acrylonitrile while promoting the reaction of the acrylonitrile with nucleophilic species such as amines and alcohols.