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:
Nov. 14, 2006
Filed:
Jul. 28, 2005
Katsuyuki Sato, Kitaibaraki, JP;
Keisuke Kokin, Kitaibaraki, JP;
Sunao Ikeda, Kitaibaraki, JP;
Kimihiko Urata, Kitaibaraki, JP;
Katsuyuki Sato, Kitaibaraki, JP;
Keisuke Kokin, Kitaibaraki, JP;
Sunao Ikeda, Kitaibaraki, JP;
Kimihiko Urata, Kitaibaraki, JP;
Unimatec Co., Ltd., Tokyo, JP;
Abstract
A polyfluoroalkyl ester of unsaturated carboxylic acid is produced in high yield in a more simple reactor and with much more reduction in the waste than the conventional process based on esterification reaction by subjecting a polyfluoroalkanol represented by the following general formula:Rf—R—OHwhere Rf is a polyfluoroalkyl group having 1–6 carbon atoms and R is an alkylene group having 1–6 carbon atoms, and an unsaturated carboxylic acid to dehydration reaction in a fluorine-containing solvent in the presence of an acid catalyst and a polymerization inhibitor.