Microemulsion polymerization systems for fluoromonomers

Details Microemulsion polymerization systems for fluoromonomers Microemulsion polymerization systems for fluoromonomers

C - Chemistry, Metallurgy

08

F

402/526, 402/529

C08F 214/18 (2006.01) C08F 214/26 (2006.01) C08F 216/14 (2006.01) C09D 127/12 (2006.01)

Patent

CA 2199015

An aqueous microemulsion polymerization procedure is described in which very small colloidal melt-processible fluoropolymer particles are produced from at least one gaseous monomer and optionally TFE. The polymerization procedure involves forming a microemulsion of at least one liquid saturated organic compound; adding at leat one gaseous free-radical polymerizable monomer to the microemulsion; and initiating polymerization by adding a free-radical initiator to the mixture.

L'invention concerne une procédure de polymerisation en micro-émulsion aqueuse qui permet de produire, à partir d'au moins un monomère gazeux et éventuellement du tétrafluoréthylène (TFE), de très petites particules polymères fluorées colloïdales que l'on peut traiter en fusion. La procédure de polymérisation consiste à former une micro-émulsion d'au moins un composé organique saturé liquide, à ajouter à la micro-émulsion au moins un monomère gazeux pouvant subir une polymérisation radicalaire, et à déclencher la polymérisation par addition au mélange d'un amorceur à radicaux libres.

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