C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 214/26 (2006.01) C08L 23/02 (2006.01) C08L 27/18 (2006.01) C09D 127/18 (2006.01) C09J 127/18 (2006.01)
Patent
CA 2140869
Copolymers of tetrafluoroethylene (TFE) and hexafluoropropylene (HFP) having high HFP content and end-of-melting temperature, T m(end), as low as 200 °C are disclosed. Exceptional performance as a processing aid in polyolefins results from having T m(end) of the TFE/HFP copolymer close to the processing temperature of the polyolefin. These TFE/HFP copolymers are soluble in fluorinated cyclic solvents. Copolymer/solvent systems copolymer at significant concentrations in selected solvents are fluid and stable at room temperature.
Chapman George Richard Jr.
Crenshaw Lewis Edward
Mcminn Rita Sue
Morgan Richard Alan
Priester Donnan Edwin
Bennett Jones Llp
E. I. Du Pont de Nemours And Company
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