Non-rigid vinyl chloride polymer resin composition

Details Non-rigid vinyl chloride polymer resin composition Non-rigid vinyl chloride polymer resin composition

C - Chemistry, Metallurgy

08

L

400/3077

C08L 27/06 (2006.01) C08K 5/00 (2006.01) C08L 51/00 (2006.01)

Patent

CA 1234647

NON-RIGID VINYL CHLORIDE POLYMER RESIN COMPOSITION ABSTRACT OF THE DISCLOSURE Disclosed is a non-rigid vinyl chloride polymer composition comprising 100 weight parts of a vinyl chloride polymer resin, 5 - 50 weight parts of a graft copolymer modifier and 10 - 300 weight parts of a plasticizer. The graft copolymer modifier is obtained by graft-polymerizing 25 - 150 weight parts of an alkyl ester of methacrylic acid having 1 to 4 carbon atoms in the alkyl group or a monomer mixture composed of at least more than 50% by weight of said alkyl ester of methacrylic acid onto 100 weight parts of an acrylic elastomer having a swelling degree of 5 to 25 so , that the grafting ratio is not larger than 50%. The acrylic elastomer is obtained by polymerizing a mixture comprising an alkyl ester of acrylic acid having 2 to 10 carbon atoms in the alkyl group or a monomer mixture composed of at least 50% by weight of said alkyl ester of acrylic acid, and a polyfunctional crosslinking agent. The non-rigid vinyl chloride polymer composition has excellent weatherability and impact resistance, and exhibits a good molding processability.

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