Patent ID: 9534106
Date: 2017-01-03
CPC Classifications: C08F,C08K

Claim:
1. A process for manufacturing a dispersion of a vinylidene fluoride (VDF)-containing thermoplastic polymer [polymer (F)], said process comprising polymerizing VDF, optionally in the presence of one or more fluorinated monomer(s) different from VDF and optionally in the presence of one or more hydrogenated comonomer(s), in an aqueous phase, the aqueous phase comprising: from 0.5 to 1.5 g/l of at least one surfactant of formula F—(CF an organic oxidizing agent [agent (O)] as polymerization initiator, wherein polymer (F) comprises: (a′) at least 60% by moles of vinylidene fluoride (VDF); (b′) optionally from 0.1 to 15% by moles of one or more fluorinated monomer(s) different from VDF; and (c′) optionally from 0.1 to 5% by moles, based on the total amount of monomers (a′) and (b′), of one or more hydrogenated comonomer(s).