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. 05, 2020
Filed:
Mar. 17, 2017
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Jun Wye Lee, Daejeon, KR;
Il Ha Lee, Daejeon, KR;
Seung Young Park, Daejeon, KR;
Ki-Hwan Kim, Daejeon, KR;
Sung-Kyoung Kim, Daejeon, KR;
Assignee:
LG CHEM LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 64/34 (2006.01); B01J 31/12 (2006.01); B01J 23/06 (2006.01); C07F 3/06 (2006.01); B01J 35/02 (2006.01); C08G 64/20 (2006.01);
U.S. Cl.
CPC ...
C08G 64/34 (2013.01); B01J 23/06 (2013.01); B01J 31/12 (2013.01); B01J 35/02 (2013.01); C07F 3/06 (2013.01); C08G 64/20 (2013.01);
Abstract
The present invention relates to an organozinc-supported catalyst, a method for producing the same, and a method for preparing a polyalkylene carbonate resin using the catalyst. The organozinc-supported catalyst provided by the present invention includes a zinc dicarboxylate-based catalyst supported on a zinc compound layer formed on at least a portion of a support surface, and can be used repeatedly or continuously while exhibiting improved selectivity in the polymerization process for preparing a polyalkylene carbonate resin.