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:
Jul. 14, 2009
Filed:
Apr. 24, 2007
Applicants:
Kenichi Hino, Tokyo, JP;
Kazuyuki Yada, Ibaraki, JP;
Keisuke Saeki, Tokyo, JP;
Inventors:
Assignee:
Kuraray Co., Ltd., Okayama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 29/132 (2006.01); C07C 29/151 (2006.01); C07C 29/153 (2006.01);
U.S. Cl.
CPC ...
Abstract
Provided is a method for producing 3-methyl-1,5-pentanediol by hydrogenating 2-hydroxy-4-methyltetrahydropyran in the presence of a hydrogenation catalyst, characterized in that the hydrogenation is further carried out in the presence of a basic compound. By this method, in producing MPD by hydrogenation of MHP, high-purity MPD can be produced by effectively suppressing generation of by-products such as MPAE and MVL even when a known hydrogenation catalyst is used.