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:
Nov. 11, 1986
Filed:
Feb. 20, 1986
Applicant:
Inventors:
Ira B Dicker, Wilmington, DE (US);
Clyde S Hutchins, Arlington, TN (US);
Harry J Spinelli, Wilmington, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526190 ; 526194 ;
Abstract
The duration of 'livingness' in group transfer polymerization with oxyanion catalysts is enhanced by the presence of agents such as acetonitrile or silylated acetonitrile, resulting in higher molecular weight and/or lower polydispersity in the resulting polymers.