Process for producing matte vinyl chloride polymers

C - Chemistry – Metallurgy – 08 – L

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C08L 27/06 (2006.01) C08F 14/06 (2006.01) C08F 257/02 (2006.01) C08J 5/18 (2006.01) C08L 47/00 (2006.01)

Patent

CA 2047143

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.

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