Low-melting tetrafluoroethylene copolymer and its uses

Details Low-melting tetrafluoroethylene copolymer and its uses Low-melting tetrafluoroethylene copolymer and its uses

1994-11-16

1995-11-07

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525199, 526254, C08F21416, C08F21428

Patent

active

054649048

ABSTRACT:
Copolymers of tetrafluoroethylene (TFE) and hexafluoropropylene (HFP) having high HFP content and end-of-melting temperature, T.sub.m (end), as low as 200.degree. C. are disclosed. Exceptional performance as a processing aid in polyolefins results from having T.sub.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.

REFERENCES:
patent: 4380618 (1983-04-01), Khan et al.
patent: 4381384 (1983-04-01), Khan
patent: 4552925 (1985-11-01), Nakagawa et al.
patent: 5266639 (1993-11-01), Chapman, Jr. et al.
patent: 5374683 (1994-12-01), Morgan

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