Heterogeneous copolymer of vinylidene fluoride and chlorotrifluo

Details Heterogeneous copolymer of vinylidene fluoride and chlorotrifluo Heterogeneous copolymer of vinylidene fluoride and chlorotrifluo

1989-04-14

1990-08-07

Schofer, Joseph L.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C08F25908

Patent

active

049469002

ABSTRACT:
Heterogeneous copolymers of vinylidene fluoride and chlorotrifluoroethylene are obtained by copolymerization in suspension or emulsion in two stages. In a first stage the vinylidene fluoride and the chlorotrifluoroethylene are copolymerized, and in a second stage the polymerization of vinvylidene fluoride is continued after discontinuance of the introduction of chlorotrifluoroethylene.

REFERENCES:
patent: 3929934 (1975-12-01), Moore et al.
patent: 4141874 (1979-02-01), Oka et al.
patent: 4308359 (1981-12-01), Buning
patent: 4469846 (1984-09-01), Khan et al.
patent: 4655963 (1987-04-01), Koga et al.

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