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. 12, 1983
Filed:
Jun. 20, 1979
Applicant:
Inventors:
Assignee:
Daikin Kogyo Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
570145 ; 2604 / ; 568936 ;
Abstract
A process for preparing benzotrifluoride or derivatives thereof by contacting benzotrichloride or the corresponding derivatives with hydrogen fluoride in a gaseous phase in the absence of any catalyst, the contact being carried out in the presence of chlorine at an elevated temperature so as to accelerate the reaction rate.