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:
Oct. 02, 2001
Filed:
Jul. 02, 1999
Applicant:
Inventors:
Robert Ray Burch, Jr., Exton, PA (US);
Alexa Ann Dembek, Midlothian, VA (US);
Steven Raymond Lustig, Landenberg, PA (US);
Maria Spinu, Hockessin, DE (US);
Assignee:
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 6/378 ; C08G 6/382 ;
U.S. Cl.
CPC ...
C08G 6/378 ; C08G 6/382 ;
Abstract
This invention concerns a process for polymerizing cyclic oligomers to homopolymers or copolymers, conducted in the presence of one or more linear polymers.