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:
May. 10, 1983
Filed:
Dec. 29, 1980
Applicant:
Inventors:
Gar L Woo, Tiburon, CA (US);
Phillip H Parker, San Rafael, CA (US);
Assignee:
Chevron Research Company, San Francisco, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
C08J / ; C08L / ; C08G / ;
U.S. Cl.
CPC ...
524114 ; 524196 ; 524386 ; 524387 ; 525419 ; 525420 ; 528315 ; 528326 ; 2641 / ;
Abstract
Poly-2-pyrrolidone polymer compositions having improved melt processability via the capping of at least a portion of the amino and/or carboxy end group of the polymer and the incorporation therewith of certain epoxide organic isocyanate and/or polyol additive compositions. The melt extrusion of such compositions is also disclosed.