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:
Mar. 05, 2019
Filed:
Sep. 15, 2015
Applicant:
SK Innovation Co., Ltd., Seoul, KR;
Inventors:
Young Bo Choi, Seoul, KR;
Sung Real Son, Daejeon, KR;
In Hyoup Song, Daejeon, KR;
Sang Il Lee, Daejeon, KR;
Sang Hyun Cho, Daejeon, KR;
Dae Hyun Choo, Busan, KR;
Assignee:
SK Innovation Co., Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 493/04 (2006.01); C07D 309/10 (2006.01); C07D 307/20 (2006.01); B01J 27/053 (2006.01); B01J 27/138 (2006.01);
U.S. Cl.
CPC ...
C07D 493/04 (2013.01); B01J 27/053 (2013.01); B01J 27/138 (2013.01); C07D 307/20 (2013.01); C07D 309/10 (2013.01);
Abstract
A method for producing anhydrosugar alcohol according to the present invention can increase the yield of anhydrosugar alcohol even in the absence of a catalyst or in the presence of a small amount of a transition metal salt catalyst by controlling the temperature of a high-temperature reaction, which converts sugar alcohol to anhydrosugar alcohol, in two steps, that is, a first low-temperature reaction step and a second high-temperature reaction step.