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. 16, 2004
Filed:
Aug. 30, 2002
Applicant:
Inventors:
Timothy J. Deming, Summerland, CA (US);
Jianjun Cheng, Arcadia, CA (US);
Assignee:
The Regents of the University of California, Oakland, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 6/914 ;
U.S. Cl.
CPC ...
C08G 6/914 ;
Abstract
A series of initiators based on transition metal complexes for the polymerization of optically active beta-lactams into poly-beta-peptides and block copolymers have been developed. These initiators are unique in being able to eliminate chain transfer and chain termination side reactions from these polymerizations resulting in narrow molecular weight distributions, molecular weight control, and the ability to prepare copolymers of defined block sequence and composition.