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. 10, 1995
Filed:
Apr. 18, 1990
Applicant:
Inventors:
Karl-Erwin Piejko, Berg.-Gladbach, DE;
Dieter Constant, Leverkusen, DE;
Christian Lindner, Cologne, DE;
Claus Wulff, Krefeld, DE;
Assignee:
Bayer AG, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01F / ; C07C / ;
U.S. Cl.
CPC ...
252356 ; 562404 ;
Abstract
Process for pretreating abietic acid derivatives comprising dissolving an abietic derivative in water to form a 2 to 25% by weight solution, adding a base so that the pH of the solution is from 10 to 14 and removing from 0.5 to 25% by weight of the abietic acid derivative originally present in the solution by extraction or steam distillation while maintaining the pH from 10 to 14.
Quick Actions:
Piejko, Karl-Erwin. (1995). Abietic acid derivatives and their use as emulsifiers (U.S. Patent No. 5456861). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5456861
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile