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:
Feb. 14, 2017
Filed:
Sep. 30, 2011
Applicants:
Yuji Imahori, Settsu, JP;
Mayumi Iida, Settsu, JP;
Katsuhiko Imoto, Settsu, JP;
Inventors:
Assignee:
DAIKIN INDUSTRIES, LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 14/26 (2006.01); C08F 214/26 (2006.01); C08F 214/18 (2006.01); C08F 2/26 (2006.01);
U.S. Cl.
CPC ...
C08F 14/26 (2013.01); C08F 2/26 (2013.01); C08F 214/18 (2013.01); C08F 214/186 (2013.01); C08F 214/188 (2013.01); C08F 214/26 (2013.01); C08F 214/267 (2013.01);
Abstract
Provided is a method for producing a fluoropolymer in the presence of a specific non-fluorinated compound having surface activity. The method shows a high polymerization rate, and suppresses formation of sticking polymerization materials after production of a polymer product. The method includes aqueous dispersion polymerization of a fluoroolefin in the presence of a compound (1) represented by formula (1): wherein Rand Rare the same as or different from each other, and each represent a C4 to C12 non-fluorinated saturated hydrocarbon group; and M is an alkali metal, an ammonium salt, or an amine salt.