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. 28, 1981
Filed:
May. 06, 1977
Applicant:
Inventor:
Robert Bacskai, Kensington, CA (US);
Assignee:
Chevron Research Company, San Francisco, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
2603262 ; 2602 / ; 2602 / ; 2602 / ; 2602 / ; 2603 / ; 546243 ;
Abstract
The polymerization of 2-pyrrolidone is achieved in high yield in the presence of a sodium-derived catalyst activator produced by the reaction of carbon dioxide with the sodium lactamate derived from the reaction of a sodium alkoxide and a 5-7 membered-ring lactam in an inert liquid nonsolvent.