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:
Apr. 03, 2012
Filed:
Jul. 17, 2007
Daisuke Murai, Ibaraki, JP;
Takashi Enokida, Ibaraki, JP;
Seiichiro Murata, Ibaraki, JP;
Unimatec Co., Ltd., Tokyo, JP;
Abstract
A polyfluoroalkane carboxylic acid represented by the following general formula:CF(CHCF)(CFCF)CFCOOM(M: an alkali metal, a NHgroup or H; n: an integer of 1 to 6; m: an integer of 1 to 4; and l: 1 or 2) can be produced by hydrolysis reaction of polyfluoroalkane carboxylic acid fluoride represented by the following general formula:CF(CHCF)(CFCF)CFCOF,where its carboxylic acid salt can be formed as an alkali metal salt, or a NHsalt. The polyfluoroalkane carboxylic acid (or its salt) can act as a surfactant having distinguished monomer emulsifiability and latex stability when used as an emulsifying agent or as a dispersing agent for polymerization reaction of fluorine-containing monomers, or as an effective surfactant capable of enhancing the micelles solubility of fluorine-containing monomers such as vinylidene fluoride, etc., when used as an emulsifying agent or a dispersing agent for homopolymerization or copolymerization reaction of vinylidene fluoride.