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:
Mar. 22, 1977
Filed:
Aug. 01, 1975
Applicant:
Inventor:
John C Graham, Warren, MI (US);
Assignee:
Hooker Chemicals & Plastics Corporation, Niagara Falls, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2606 / ; 252439 ;
Abstract
A process for the chlorination of toluene comprises reacting toluene with chlorine in the presence of a catalyst system comprising a Lewis acid catalyst and a co-catalyst selected from the group consisting of diphenyl selenide and aluminum selenide. The monochlorotoluene product obtained is characterized by a substantially reduced ratio of orthochlorotoluene to parachlorotoluene.
Graham, John. (1977). Process for the preparation of monochlorotoluene (U.S. Patent No. 4013730). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4013730
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile