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:
Jun. 12, 2012
Filed:
Aug. 06, 2009
Shigeru Morita, Settsu, JP;
Yoshiki Tanaka, Settsu, JP;
Keiko Washino, Settsu, JP;
Nobuhiko Tsuda, Settsu, JP;
Mitsuru Kishine, Settsu, JP;
Shigeru Morita, Settsu, JP;
Yoshiki Tanaka, Settsu, JP;
Keiko Washino, Settsu, JP;
Nobuhiko Tsuda, Settsu, JP;
Mitsuru Kishine, Settsu, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
This invention provides a novel compound which can be properly used as a surfactant, a method of producing a fluoropolymer, surfactant and a fluoropolymer aqueous dispersions using the novel compound. This invention is a fluoroalkylcarboxylic acid derivative which is represented by the general formula (i):Rf(OCHCFCF)OCXXCF(Rf)COOM  (i)wherein Rfrepresents a straight or branched fluoroalkyl group containing 1 to 20 carbon atoms, which fluoroalkyl group may optionally contain 1 to 5 oxygen atoms in the principal chain thereof, Rfrepresents a straight or branched fluoroalkylene group containing 1 to 25 carbon atoms, said fluoroalkylene group may optionally contain 1 to 5 oxygen atoms in the principal chain thereof, n1 represents an integer of 0 to 3, n2 represents an integer of 0 or 1, Xand Xare the same or different and each represents hydrogen atom or fluorine atom, and M represents NHor a monovalent metal element.