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:
Apr. 17, 2001
Filed:
Nov. 06, 1998
Applicant:
Inventors:
Marcus Morawietz, Hanau, DE;
Thomas Haas, Frankfurt, DE;
Olaf Burkhardt, Alzenau, DE;
Rudolf Vanheertum, Kahl, DE;
Assignee:
Degussa-Huls Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 4/311 ;
U.S. Cl.
CPC ...
C07C 4/311 ;
Abstract
The acid-catalyzed intermolecular etherification of mono- or polyhydric alcohols and acid-catalyzed ether cleavage in the presence of water may be improved if etherification or ether cleavage is carried out in the presence of an acid catalyst and, additionally, a hydrogenation catalyst under a hydrogen atmosphere. The process relates in particular to the etherification of diols, triols and tetrols with the formation of hydroxyethers.