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:
May. 27, 2014
Filed:
Aug. 25, 2010
Katsuhiko Imoto, Settsu, JP;
Shumi Nishii, Settsu, JP;
Yoshinari Fukuhara, Settsu, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
An object of the present invention is to provide a method for producing a fluoropolymer which produces a large number of particles with a small particle size using a specific non-fluorous compound having surfactant ability. The method for producing a fluoropolymer includes aqueous dispersion polymerization of a monomer including at least one fluoroolefin in the presence of a compound (1) represented by the formula: CH═CR—R—O-(AO)—X (in the formula, Ris hydrogen or an alkyl group; Ris an alkylene group having two or more carbon atoms; AO is a linear or branched oxyalkylene group having 2 to 4 carbon atoms; p is a positive integer; X is H or SOY wherein Y is NHor an alkaline metal; and AO may be the same or different and may form two or more blocks if there is more than one AO.)