Polymer molding materials, use of the molding materials in the foam generation process, foaming methods, foamed molding materials and products containing foamed molding materials

摘要

The present invention relates to a polymeric compound comprising (a) 100 parts by weight of a block copolymer comprising at least two external monovinyl aromatic hydrocarbon blocks and at least one internal hydrogenated conjugated diene block, wherein the total monovinyl aromatic hydrocarbon content is from 20 to 50% by weight and the total apparent molecular weight is from 140,000 g/mol to 400,000 g/mol; (b) 50 to 250 phr of a plasticiser; (c) 10 to 100 phr of a polybutene-1 polymer having a melt index at 2.16 kg/190 DEG C. of from 0.05 to 400; (d) a blowing agent. The present invention further relates to use of the compound for the preparation of foamed compounds; to a foaming process; to a masterbatch blend; to a foamed compound; and to articles containing the foamed compound.