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:
Jun. 06, 2006
Filed:
Dec. 09, 1999
Applicants:
Carsten Hesse, Tönisvorst, DE;
Ursula Jansen, Neuss, DE;
Johann Rechner, Kapellen, BE;
Inventors:
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 31/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for preparing a formulation containing tetrabutylammonium phenolate and phenol is disclosed. The process entails combining a solution of tetrabutylammonium bromide in phenol with a solution of sodium phenolate to form a mixture, excess phenol is removed by distillation, and sodium bromide is filtered off. The formulation, that contains tetrabutylammonium phenolate and phenol in a weight ratio of 40:60 to 70:30, has a solidification point of less than 25° C. and finds use as a catalyst constituent.