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:
Feb. 17, 2015
Filed:
Dec. 11, 2013
Asahi Glass Company, Limited, Chiyoda-ku, JP;
Shoji Furuta, Yokohama, JP;
Yusuke Sugahara, Kashima-gun, JP;
Keiko Nakase, Ichihara, JP;
Keisuke Mori, Ichihara, JP;
Asahi Glass Company, Limited, Chiyoda-ku, JP;
Abstract
A process for producing a fluoroalkyl iodide as a telomer R(CFCF)I (wherein Ris a Cfluoroalkyl group, and n is an integer of from 1 to 6) by telomerization from a fluoroalkyl iodide represented by the formula RI (wherein Ris as defined above) as a telogen and tetrafluoroethylene (CFCF) as a taxogen, which comprises a liquid phase telomerization step of supplying a homogeneous liquid mixture of the telogen and the taxogen from the lower portion of a tubular reactor, moving the mixture from the lower portion towards the upper portion of the reactor in the presence of a radical initiator over a retention time of at least 5 minutes while the reaction system is kept in a liquid phase state under conditions where no gas-liquid separation will take place, so that the taxogen supplied to the reactor is substantially consumed by the reaction in the reactor, and drawing the reaction product from the upper portion of the reactor.