Production of tetrafluoroethylene polymers

Details Production of tetrafluoroethylene polymers Production of tetrafluoroethylene polymers

1988-06-02

1990-05-01

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

5262323, C08F 1418

Patent

active

049219227

ABSTRACT:
Production of coagulated dispersion grades of PTFE using an aqueous emulsion polymerization process which employs an initiator system comprising disuccinic acid peroxide and ammonium sulphite, the latter being added during the course of the polymerization. The resulting polymer can be fabricated into porous products of improved properties.

REFERENCES:
patent: 2419008 (1947-04-01), Coffman et al.
patent: 2759350 (1956-06-01), Kroll
patent: 3110704 (1963-11-01), Halliwell
patent: 3475391 (1969-10-01), Coker
patent: 3801552 (1974-04-01), Kewetani et al.
patent: 4342675 (1982-08-01), Gangal
patent: 4654406 (1987-03-01), Malhotra
patent: 4766188 (1988-08-01), Attwood et al.
Hackh's Chemical Dictionary, pp. 37-40.

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