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. 26, 1978
Filed:
Feb. 14, 1975
Applicant:
Inventors:
Heinz Eilingsfeld, Frankenthal, DE;
Manfred Patsch, Ludwigshafen, DE;
Karl-Gerhard Baur, Ludwigshafen, DE;
Wolfgang Ruehenbeck, Weinheim, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
2606 / ; 2606 / ;
Abstract
A process for the manufacture of o-benzyltoluenes by reaction of o-xylyl halides with benzenes in the presence of sulfuric acid or in the presence of phosphoric acid and adjuvants or in the presence of sulfuric acid and adjuvants. The products are starting materials for the manufacture of anthracene and anthraquinone and their derivatives.
Eilingsfeld, Heinz. (1978). Manufacture of o-benzyltoluenes (U.S. Patent No. 4117019). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4117019
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile