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. 15, 2001
Filed:
Aug. 31, 1999
Applicant:
Inventors:
Thomas Haas, Frankfurt, DE;
Bernd Jäger, Darmstadt, DE;
Jörg Sauer, Rodenbach, DE;
Rudolf Vanheertum, Kahl, DE;
Assignee:
Degussa-Huls AG, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 2/988 ; C07C 2/990 ;
U.S. Cl.
CPC ...
C07C 2/988 ; C07C 2/990 ;
Abstract
Reduction in the content of acetals or ketone acetals in a reaction mixture containing at least 10 moles alcohol per mole acetal or ketone acetal can be achieved hydrogenolytically when the reaction mixture is hydrogenated at 80° to 250° C. at a hydrogen partial pressure of 0.5 to 30 MPa in the presence of activated carbon charged with noble metal as catalyst.