Abstract: Thermoplastic elastomers of good dyeability and high strength and elasticity, the incorporated elastomeric particles of which have and average particle diameter of 0.05 to 5 &mgr;m. The thermoplastic elastomers are formed according to a method in which mixtures of propylene homopolymers and/or propylene copolymers, elastomeric C4 C12 olefin copolymers and/or terpolymers and C8 to C14 diacrylates, C7 to C16 diallyl compounds, C9 to C15 dimethacrylates, C7 to C10 divinyl compounds, C12 to C17 acrylate esters of polyalcohols, C15 to C21 methacrylate esters of polyalcohols and/or C9 C12 triallyl compounds are added to a melt. The thermoplastic elastomers, as well as mixtures of the thermoplastic elastomers with conventional polyolefins, are suitable for use in the vehicle industry, in the domestic appliances industry, in the construction industry and in medical technology.

Abstract: Thermoplastic elastomers of high strength, high elasticity and good dyeability, the incorporated elastomeric particles of which have an average particle diameter of 0.05 to 5 &mgr;m, from propylene homopolymers and/or propylene copolymers, elastomeric C2 to C8 olefin copolymers and/or terpolymers and multifunctional, unsaturated monomers are formed by a method, for which mixtures of propylene homopolymers and/or propylene copolymers, elastomeric C2 to C8 olefin copolymers and/or terpolymers and readily volatile C4 to C7 dienes are reacted in the melt. The thermoplastic elastomers, as well as mixtures with conventional polyolefins, are suitable for use in the vehicle industry, in the domestic appliances industry, in the building sector and in medical technology.