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. 25, 1980
Filed:
Jun. 24, 1977
Applicant:
Inventor:
Kenneth W Dixon, Sewickley, PA (US);
Assignee:
GAF Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
525340 ; 525354 ; 525359 ; 525419 ;
Abstract
Polymers having a tertiary amide group, particularly homopolymers and copolymers of vinylpyrrolidone, are modified by treatment with reactive acid chlorides, the amide functions being converted into amide chlorides. These modified polymers are reactive intermediates and may be used to obtain a variety of new polymeric substances.