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:
Sep. 25, 2001
Filed:
Jun. 22, 1999
Applicant:
Inventors:
Assignee:
Mitsubishi Chemical Company, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C 3/113 ;
U.S. Cl.
CPC ...
C07C 3/113 ;
Abstract
A process for making cycloalkyldimethanol, includes hydrogenating at least one cycloalkyldicarboxylic acid and/or an alkyl ester thereof with a catalyst, to produce a cycloalkyldimethanol, where the catalyst contains ruthenium, tin and platinum. Also, a method for regenerating a used catalyst, includes contacting the used catalyst with a base, where the catalyst includes ruthenium, tin and platinum.