Monovinyl aromatic block copolymer containing compositions and microgranules and powders derived therefrom to be used in rotational molding and similar processes

摘要

Block copolymer containing compositions, to be used in rotational molding, the compositions comprising at least: (a) 100 parts by weight of a block copolymer containing at least two predominantly poly(monovinyl aromatic) blocks and at least one predominantly poly(conjugated diene) block, the poly(conjugated diene) block preferably being selectively hydrogenated; (b) from 10 to 80 parts by weight and preferably from 20 to 50 parts by weights, of a linear low density poly(ethylene) or copolymers of predominantly ethylene and minor amounts of other alpha -olefin comonomers; and (c) from 20 to 100 parts by weight and preferably from 20 to 45 parts by weight of a plasticizer.