| abstract |
It is possible by the radical solid phase graft polymerisation of function monomers with at least one functional group selected from among mono and dicarboxylic groups or groups derived therefrom, especially anhydride groups, and hydroxy, epoxy, amino and silane groups, possible mixed with an additional comonomer in the proportion of 1 to 99% related to the total monomer mass, especially from the group of styrenes and/or (meth)acrylates, with a polymerised monomer porportion in relation to the graft product mass of 0.05 to 50% on an olefinic and/or dienic spinal polymer (compound), including hydrated conjugated dienic homopolymer, copolymer and especially block copolymer backbones which contain a quantity of a mineral and/or native oil added before the functionalisation reaction, to obtain functionalised polymers, preferably carboxylated thermoplastic elastomers (TPE-S, TPE-O) characterized by improved adhesive strength and especially impact resistance when used in a large number of thermoplastic moulding compounds, polymer blends and composites. Preference is given to (saturated) paraffinic/naphthenic process oils used in quantities of between 10 parts by mass and at maximum concentrations corresponding to 20 to 400 parts by mass, in relation to 100 parts by mass of the spinal polymer, taking account of the dry-flowing consistency of the spinal polymer to be maintained. |