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:
Oct. 28, 2003
Filed:
Aug. 01, 2002
Applicant:
Inventors:
Gerd Reinhardt, Kelkheim, DE;
Peter Naumann, Taunusstein, DE;
Miriam Ladwig, Dietzenbach, DE;
Ina Golla, Rüsselsheim, DE;
Torsten Pilz, Oberreifenberg, DE;
Reto Wieduwilt, Kaiseraugst, CH;
Henri Jourdan, Basel, CH;
Assignee:
Clariant GmbH, Frankfurt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 6/900 ;
U.S. Cl.
CPC ...
C07C 6/900 ;
Abstract
Process for the preparation of acyloxybenzenesulfonates by reaction of phenolsulfonate with a water content of less than 0.5% by weight and alkanecarbonyl halide in a hydrocarbon as solvent and in the presence of a catalyst in the form of a basic nitrogen-containing compound.