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:
Jan. 22, 2008
Filed:
Jun. 16, 2003
Kenji Ishii, Settsu, JP;
Noriyuki Shinoki, Settsu, JP;
Takuya Arase, Settsu, JP;
Kazuyoshi Ichihara, Settsu, JP;
Toshiya Mantani, Settsu, JP;
Kenji Ishii, Settsu, JP;
Noriyuki Shinoki, Settsu, JP;
Takuya Arase, Settsu, JP;
Kazuyoshi Ichihara, Settsu, JP;
Toshiya Mantani, Settsu, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
The present invention relates to a method for producing a water-soluble fluorine-containing vinyl ether which comprises subjecting a fluorine-containing 2-alkoxypropionic acid derivative represented by the following general formula (I): (wherein A represents —OMor —OM, and Mrepresents an alkali metal and Mrepresents an alkaline earth metal; X represents a halogen atom; Yand Yare the same or different and each represents a fluorine atom, a chlorine atom, a perfluoroalkyl group or a fluorochloroalkyl group; n represents an integer of 0 to 3, and n of Ys may be the same or different; m represents an integer of 1 to 5, and m of Ys are the same or different; and Z represents a hydrophilic group) to thermal decomposition at a temperature of not lower than 50° C. but lower than 170° C. in the presence of a coordinating organic solvent to give a water-soluble fluorine-containing vinyl ether represented by the general formula (II): (wherein Y, Y, Z, n and m are as defined above),