Process for producing matte vinyl chloride polymers

Details Process for producing matte vinyl chloride polymers Process for producing matte vinyl chloride polymers

1991-07-08

1993-09-28

Seidleck, James J.

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

Synthetic resins

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

525308, 525305, 525302, 525239, 525262, C08F25702, C08F26504

Patent

active

052487334

ABSTRACT:
Matte vinyl chloride polymers are prepared by suspension polymerizing a vinyl chloride monomer or a vinyl monomer mixture mainly comprising vinyl chloride in an aqueous medium in the presence of (A) a polyfunctional monomer having at least two ethylenic double bonds in a molecule and (B) a polymeric matting agent containing 3 to 25% by weight of a tetrahydrofuran-insoluble gel fraction. The polymers are effectively moldable and present uniform matte effect.

REFERENCES:
patent: 3907730 (1975-09-01), Jones
patent: 3929933 (1975-12-01), Gallagher
patent: 3969431 (1976-07-01), Gallagher
patent: 3988393 (1976-10-01), Gallagher
patent: 4914154 (1990-04-01), Haller et al.
patent: 4978718 (1990-12-01), Haller et al.
patent: 4981907 (1991-01-01), Klipperf et al.

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