Tetrafluoroethylene polymers

Details Tetrafluoroethylene polymers Tetrafluoroethylene polymers

1976-12-30

1978-12-12

Seccuro, Carman J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

264127, C08L 2718

Patent

active

041296184

ABSTRACT:
A tetrafluoroethylene polymer comprising primary particles having core and shell portions, the core portion comprising tetrafluoroethylene polymerised in the presence of a perfluoroalkyl or alkoxy trifluoro-ethylene comonomer, particularly hexafluoropropylene, and shell portion consisting of tetrafluoroethylene homopolymer, or a copolymer of tetrafluoroethylene in which the comonomer concentration is less than half that in the core portion.

REFERENCES:
patent: 3654210 (1972-04-01), Kuhls et al.
patent: 3770711 (1973-11-01), Hartig et al
patent: 3855191 (1974-12-01), Doughty, Jr. et al.
patent: 3864322 (1975-02-01), Yallourakis
patent: 3911072 (1975-10-01), Saito et al.

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