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. 30, 2015
Filed:
May. 13, 2011
Yoshiyama Kaneumi, Ibaraki, JP;
Daisuke Murai, Ibaraki, JP;
Yoshiyama Kaneumi, Ibaraki, JP;
Daisuke Murai, Ibaraki, JP;
Unimatec Co., Ltd., Tokyo, JP;
Abstract
Disclosed is a fluorine-containing polymer aqueous dispersion in which a fluorine-containing polymer is dispersed using, as an emulsifier, a polyfluoroalkylphosphonic acid salt represented by the general formula:CF(CHCF)(CFCF)(CHCH)P(O)(OM)(OM)  [I],wherein Mis a hydrogen atom, an alkali metal, an ammonium base, or an organic amine base, Mis an alkali metal, an ammonium base, or an organic amine base, n is an integer of 1 to 6, a is an integer of 1 to 4, b is an integer of 1 to 3, and c is an integer of 1 to 3. This fluorine-containing polymer aqueous dispersion uses a polyfluoroalkylphosphonic acid salt with a low bioaccumulation potential as an emulsifier, and has excellent mechanical stability.