Preparation of tetrafluoroethylene fine powder

Details Preparation of tetrafluoroethylene fine powder Preparation of tetrafluoroethylene fine powder

1985-08-28

1987-01-27

Wong, Jr., Harry

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526 91, 526247, 526249, 526253, 526254, 526255, C08F11426

Patent

active

046394974

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 manganese triacetate/selected reducing agent polymerization initiator and controlling its rate of addition.

REFERENCES:
patent: 2613203 (1952-10-01), Myers
patent: 3632847 (1972-01-01), Hartwimmer
patent: 4016345 (1977-04-01), Holmes
patent: 4363900 (1982-12-01), Shimizu et al.

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