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:
Oct. 03, 2017
Filed:
Mar. 05, 2014
Solvay Solexis S.p.a., Bollate, IT;
Giuseppe Marchionni, Milan, IT;
Vito Tortelli, Milan, IT;
Ivan Wlassics, Garessio, IT;
Valeriy Kapelyushko, Alessandria, IT;
SOLVAY SOLEXIS S.P.A., Bollate, IT;
Abstract
The invention pertains to a method for making a fluoropolymer comprising an aqueous emulsion polymerization of one or more fluorinated monomers wherein said aqueous emulsion polymerization is carried out in the presence of at least one cyclic fluorocompound of the following formula (I): wherein X, X, X, equal or different from each other are independently selected among H, F, and C(per)fluoroalkyl groups, optionally comprising one or more catenary or non-catenary oxygen atoms; L represents a bond or a divalent group; Ris a divalent fluorinated Cbridging group; Y is a hydrophilic function selected among anionic functionalities, cationic functionalities and non-ionic functionalities.