Process for the polymerization in aqueous dispersion of fluorina

Details Process for the polymerization in aqueous dispersion of fluorina Process for the polymerization in aqueous dispersion of fluorina

1987-04-23

1988-12-06

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526254, C08F 200

Patent

active

047897171

ABSTRACT:
A process for polymerizing or copolymerizing fluorinated monomers, in an aqueous dispersion, by the use of radicalic starters and of fluorinated surfactants, characterized in that it is operated in the presence of perfluoropolyether having neutral end groups, being liquid under the polymerization conditions and in the form of an aqueous emulsions, in order to increase the polymerization rate.

REFERENCES:
patent: 3132123 (1964-05-01), Harris, Jr. et al.
patent: 3132124 (1964-05-01), Couture et al.
patent: 3665041 (1972-05-01), Sianesi et al.
patent: 3869465 (1975-03-01), Waldmann
patent: 4369266 (1983-01-01), Kuhls et al.
patent: 4381387 (1983-04-01), Sulzbach
patent: 4523039 (1985-06-01), Lagow et al.
CA 100(10):71067w, Caporiccio et al., "Lubricating Greases", 1983.
CA 103(6):38672d, Nippon Mectron Co., Ltd., "Polyperfluoroether Emulsion", 1985.
McCutcheon's Emulsifiers & Detergents-1982, p. 84.

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