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. 03, 2017
Filed:
Jul. 04, 2014
Applicants:
SK Innovation Co., Ltd., Seoul, KR;
SK Global Chemical Co., Ltd., Seoul, KR;
Inventors:
Jong Chan Kim, Daejeon, KR;
Han Sol Lee, Daejeon, KR;
Hyo Seung Park, Daejeon, KR;
Je Ho Lee, Daejeon, KR;
Jeong Hyun Noh, Daejeon, KR;
Jong Ho Lim, Daejeon, KR;
Jeon Koo Lee, Daejeon, KR;
Assignees:
SK Innovation Co., Ltd., Seoul, KR;
SK Global Chemical Co., Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 59/00 (2006.01); C07F 15/06 (2006.01); C08G 64/34 (2006.01);
U.S. Cl.
CPC ...
C07F 15/065 (2013.01); C08G 64/34 (2013.01);
Abstract
The present invention is directed to a novel complex synthesized from a Salen-type ligand. The novel complex contains a quaternary ammonium salt. The present invention is also directed to a preparation method of a copolymer of carbon dioxide and epoxide using the complex synthesized from a Salen-type ligand as a catalyst.