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. 12, 2015
Filed:
Feb. 24, 2011
Applicants:
Zhenjiang LI, Nanjing, CN;
Pingkai Ouyang, Nanjing, CN;
He Huang, Nanjing, CN;
Inventors:
Assignee:
Nanjing University of Technology, Nanjing, Jiangsu, CN;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G 63/08 (2006.01); C08G 63/81 (2006.01); C08G 63/82 (2006.01); B01J 31/40 (2006.01); B01J 31/04 (2006.01);
U.S. Cl.
CPC ...
C08G 63/08 (2013.01); B01J 31/40 (2013.01); C08G 63/81 (2013.01); C08G 63/823 (2013.01); B01J 31/04 (2013.01);
Abstract
This disclosure provides a method of making polylactic acid using carbon dioxide adducts of carbenes, wherein the adducts of carbenes have a structure represented by formula (I) as follows: