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. 22, 1991
Filed:
Apr. 24, 1990
Mitsuhisa Tamura, Chiba, JP;
Kazuhiro Yamauchi, Chiba, JP;
Yasuhiko Higashio, Chiba, JP;
Kazuteru Takahashi, Chiba, JP;
Sumitomo Chemical Co., Ltd., Osaka, JP;
Abstract
A process for production of sec-butylbenzene from benzene and n-butene in the presence of a liquid aluminum chloride complex catalyst is disclosed, wherein the amount of aluminum chloride used as a component of the complex catalyst is from 0.3 to 5 wt % of the benzene used, the reaction temperature is from 20.degree. to 90.degree. C., and the weight ratio of isobutylbenzene formed as a by-product to sec-butylbenzene formed is not more than 0.01:1.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile