Process for preparing aqueous dispersion of polytetrafluoroethyl

Details Process for preparing aqueous dispersion of polytetrafluoroethyl Process for preparing aqueous dispersion of polytetrafluoroethyl

1978-06-16

1982-08-03

Kight, III, John

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 81, 526 86, 526206, 526255, 524777, 524805, C08L 2300

Patent

active

043426751

ABSTRACT:
Polytetrafluoroethylene dispersions obtained from dispersion polymerization which have high solids content and small polytetrafluoroethylene particles are obtained by employing a combination of disuccinic acid peroxide and an inorganic persulfate, and a combination of an anionic and a hydrocarbon dispersing agent, precharged to the polymerization mixture, and by adding a combination of disuccinic acid peroxide and an anionic dispersing agent during the course of the polymerization.

REFERENCES:
patent: 3391099 (1968-07-01), Punderson
patent: 3607878 (1971-09-01), Grimaud et al.
patent: 3654210 (1972-04-01), Kuhls et al.
patent: 3951930 (1976-04-01), Downer et al.
patent: 4016345 (1977-04-01), Holmes

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