Tetrafluoroethylene fine powder and preparation thereof

Details Tetrafluoroethylene fine powder and preparation thereof Tetrafluoroethylene fine powder and preparation thereof

1986-05-06

1988-02-16

Schofer, Joseph L.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

526 78, 526250, 526255, C08K 500

Patent

active

047256443

ABSTRACT:
Tetrafluoroethylene fine powder resins are described which have surprisingly high extrusion pressures and molecular weights which make them useful in post-paste extruded stretching operations. The resins are made by using a permanganate polymerization initiator and controlling its rate of addition.

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patent: 3632847 (1972-01-01), Hartwimmer
patent: 4016345 (1977-04-01), Holmes
patent: 4078134 (1978-03-01), Kuhls et al.
patent: 4078135 (1978-03-01), Sulzbach et al.
patent: 4187390 (1980-02-01), Gore
patent: 4363900 (1982-12-01), Shimizu et al.

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