Patent ID: 8552128

Claim:
A process for the preparation of a fluoroolefin polymer, said process comprising the step of: introducing an azeotropic mixture consisting of a first monomer and a second monomer into a reaction zone as a single feedstream having a constant composition; and contacting the azeotropic mixture with an initiator in the reaction zone, said contacting being carried out at a temperature, pressure and length of time sufficient to produce said fluoroolefin polymer; wherein the first monomer is a fluoroolefin monomer selected from the group consisting of CF 3 CF═CF 2 , CF 3 CH═CF 2 , CF 3 CF═CHF, CF 3 CH═CH 2 , CF 3 CF═CH 2 , cis-CF 3 CH═CFH, trans-CF 3 CH═CFH, CF 3 CF 2 CF═CF 2 , CF 3 CF 2 CH═CF 2 , CF 3 CF 2 CF═CHF, CF 3 CF 2 CH═CH 2 , CF 3 CF 2 CF═CH 2 , CF 3 CF 2 CF 2 CH═CF 2 , CF 3 CF 2 CF 2 CF═CHF, CF 3 CF 2 CF 2 CH═CH 2 , CF 3 CF 2 CF 2 CF═CH 2 , CF 3 CH═CHCF 3 , CF═CFCF 3 , HOCH 2 CH═CHF, HOCH 2 CH═CF 2 , HOCH 2 CF═CH 2 , HOCH 2 CF═CHF, HOCH 2 CF═CF 2 , HOCH 2 CF═CH 2 , CF 3 CH═CHCl, CF 3 CCl═CH 2 , CF 3 CCl═CF 2 , CF 3 CF═CHCl, CF 3 CH═CFCl, and CF 2 ═CH 2 ; and the second monomer is an ethylenically unsaturated comonomer selected from the group consisting of: alkene of 2-8 carbon atoms, acrylate or methacrylate ester of 4 to 24 carbon atoms, acrylonitrile, methacrylonitrile, vinyl ether, styrene, alphamethylstyrene, paramethyl styrene, allyl alcohol, methallyl alcohol, vinyl acetate, and vinyl carboxylate of 5-24 carbon atoms, and a mixture thereof.