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. 23, 2003
Filed:
Dec. 21, 2001
Applicant:
Inventors:
Stefan Koser, Ludwigshafen, DE;
Klaus Mundinger, Limburgerhof, DE;
Wolfgang Kasel, Nussloch, DE;
Arend Jouke Kingma, Ludwigshafen, DE;
Toni Dockner, Meckenheim, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07C 4/103 ;
U.S. Cl.
CPC ...
C07C 4/103 ;
Abstract
A process for preparing bisphenol alkoxylates comprises reacting at least one bisphenol with alkylene oxide in the presence of a phosphine catalyst which is essentially free of alkali metal hydroxide.