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:
Jun. 07, 2005
Filed:
Dec. 07, 2001
Applicants:
Geon-joong Kim, Seoul, KR;
Dae-woon Park, Seoul, KR;
Ho Seong Lee, Daejeon, KR;
Seong Jin Kim, Daejeon, KR;
Inventors:
Geon-Joong Kim, Seoul, KR;
Dae-Woon Park, Seoul, KR;
Ho Seong Lee, Daejeon, KR;
Seong Jin Kim, Daejeon, KR;
Assignee:
Rstech Co., Ltd., Daejeon, KR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J031/00 ;
U.S. Cl.
CPC ...
Abstract
The present invention relates to chiral salen catalysts and a process for preparing chiral compounds from racemic epoxides by using them. More particularly, the present invention is to provide a chiral polymeric salen catalyst and its use for producing chiral compounds such as chiral epoxides and chiral 1,2-diols economically in high yield and high optical purity by performing stereoselective hydrolysis or racemic epoxides.