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:
Jul. 14, 1981
Filed:
Oct. 24, 1979
Applicant:
Inventors:
Reinhard Stober, Gross-Krotzenburg, DE;
Rolf Wirthwein, Hanau, DE;
Assignees:
Degussa Aktiengessellschaft, Frankfurt, DE;
Henkel KGaA, Henkelstrasse, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2605 / ;
Abstract
Aromatic peroxycarboxylic acids are produced by reacting aromatic carboxylic acids with hydrogen peroxide in the presence of sulfuric acid by having a mixture of aqueous 50-99 weight % H.sub.2 O.sub.2 and sulfuric acid present in the reaction vessel, introducing the solid aromatic carboxylic acid with stirring, the reaction being carried out in heterogeneous phase, the stirring being continued to the end of the reaction and then the reaction mixture obtained worked up in known manner.