Gum plastic compositions containing a resinous graft copolymer and a compatible rubber

Claim 1

A COMPOSITION COMPRISING AN INTIMATE UNIFORM MIXTURE MADE BY BLENDING TOGETHER (A) A RESINOUS GRAFT COPOLYMER SELECTED FROM THE GROUP CONSISTING OF (A) RESINOUS GRAFT COPOLYMER OF FROM 75 TO 95% BY WEIGHT OF BOUND STYRENE ON CORRESPONDINGLY FROM 25 TO 5% BY WEIGHT OF A LINEAR POLY-1OLEFIN SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE AND POLYPROPYLENE, AND (B) RESINOUS GRAFT COPOLYMER OF FROM 75 TO 95% BY WEIGHT OF BOUND STYRENE AND ACRYLONITRILE ON CORRESPONDINGLY FROM 25 TO 5% BY WEIGHT OF A LINEAR POLY-I-OLFEIN SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE AND POLYPROPYLENE, AND (B) A RUBBER, COMPATIBLE WITH SAID GRAFT COPOLYMER, SELECTED FROM THE GROUP CONSISTING OF (C) RUBBERY COPOLYMERS OF BUTADIENE AND STYRENE, (D) RUBBERY COPOLYMERS OF ETHYLENE AND PROPYLENE, (E) HEVEA RUBBER (F) CIS-POLYBUTADIENE (G) POLYCHLOROPRENE (H) RUBBERT GRAFT COOLYMERS OF STYRENE ON POLYBUTADIENE (I) RUBBERY COPOLYMERS OF BUTADIENE AND ACRYLONITRILE, AND (J) RUBBERY GRAFT COPOLYMERS OF STYRENE AND ACRYLONITRILE ON POLYBUTADIENE. THE SAID RUBBER BEING SELECTED FROM THE GROUP CONSISTING OF NON-POLAR RUBBERS (C), (D), (E), (F), (G) AND (H) WHEN THE SAID RESINOUS GRAFT COPOLYMER IS (A), AND THE SAID RUBBER BEING SELECTED FROM THE GROUP CONSISTING OF POLAR RUBBERS (U) AND (J) WHEN THE SAID RESINOUS GRAFT COPOLYMER IS (B), THE PROPORTIONS OF SAID GRAFT COPOLYMER (A) AND SAID RUBBER (B) BEING FROM 6/ TO 95% BY WEIGHT OF (A) AND CORRESPONDINGLY FROM 40 TO 5% BY WEIGHT OF (B), BASED ON THE TOTAL WEIGHT OF (A) PLUS (B).