Process for the manufacture of vinyl halide polymers modified wi

Details Process for the manufacture of vinyl halide polymers modified wi Process for the manufacture of vinyl halide polymers modified wi

1987-09-15

1989-05-02

Jacobs, Lewis T.

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

Synthetic resins

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

525404, 525415, C08F28306

Patent

active

048269344

ABSTRACT:
In a first stage, a heterocyclic oxygen compound is polymerized by an ionic route in a vinyl halide and, in a second stage, the vinyl halide, to which other unsaturated monomers capable of being polymerized by a radical route may be added if desired, is polymerized by a radical route in aqueous dispersion and in the presence of the polymerization mixture originating from the first stage.

REFERENCES:
patent: 3817877 (1974-06-01), Malfroid
patent: 3884994 (1975-05-01), Critchfield et al.
patent: 4281087 (1981-07-01), Heuschen et al.

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