Blends of a graft copolymer of propylene polymer material with a graft copolymer of olefinic rubber material

A thermoplastic blend consisting essentially of, by weight, (A) 40 to 90% of a graft copolymer of a propylene polymer material selected from the group consisting of (i) a homopolymer of propylene, (ii) a random copolymer of propylene and an olefin selected from ethylene and C.sub.4-10 alpha-olefin, wherein when the olefin is ethylene the maximum polymerized ethylene content is 10% and when the olefin is C.sub.4-10 alpha-olefin the maximum polymerized content thereof is 20% and (iii) a random terpolymer of propylene with two alpha-olefins selected from the group consisting of ethylene and C.sub.4-8 alpha-olefin, wherein the maximum polymerized C.sub.4-8 alpha-olefin content is 20% and when ethylene is one of said alpha-olefins the maximum polymerized ethylene content is 5%, having 5 to 70% monomer graft polymerized thereto and (B) 10 to 60% of a graft copolymer of an olefin rubber material having 5 to 50% monomer graft polymerized thereto, wherein the graft monomer(s) are selected form the group consisting of (i) an aromatic vinyl compound, (ii) an acrylic compound selected from the group consisting of methyl methacrylate, ethyl methacrylate, benzyl methacrylate, phenyl methacrylate and C.sub.1-4 alkoxy substituted phenyl methacrylate, (iii) mixtures of (i) and (ii), and (iv) other copolymerizable monomers selected from the group consisting of C.sub.1-10 linear or branched alkyl acrylates, acrylic acid, methacrylic acid, glycidyl methacrylate, glycidyl acrylate, acrylonitrile and methacrylonitrile with at least one (i) and at least one (ii) wherein said other copolymerizable monomer being present in an amount of up to 50%, and (D) up to 80 parts by weight of one or more additives selected from the group consisting of fillers, reinforcing agents and inorganic powders, per 100 parts of (A)+(B).