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. 07, 2009
Filed:
Nov. 09, 2005
Applicants:
Wilson Tam, Boothwyn, PA (US);
David T. Williamson, Hockessin, DE (US);
Inventors:
Wilson Tam, Boothwyn, PA (US);
David T. Williamson, Hockessin, DE (US);
Assignee:
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 3/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
N-heterocyclic carbenes are effective catalysts for the ring opening polymerization of cyclic amides. The catalysts provide rapid polymerization, high monomer conversion, high molecular weight, and a mechanically sound material.
Tam, Wilson. (2009). Ring opening polymerization of cyclic amides using n-heterocyclic carbene catalysts (U.S. Patent No. 7514499). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7514499
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile