Block copolymer composition for air bag covers

摘要

Block copolymer containing composition to be used for air bag covers, comprising: (a) 100 parts by weight of a selectively hydrogenated block copolymer, comprising at least two end blocks of predominantly monovinyl aromatic monomers and at least one intermediate block of predominantly conjugated diene, the predominantly poly(conjugated diene) blocks in which have been selectively hydrogenated up to a residual ethylenic unsaturation degree of 20% or less of the original ethylenic unsaturation, whereas the aromatic unsaturation has retained at least 95% of its original value, and having a monovinyl aromatic compound content in the range of from 5 to 50%, and preferably from 10 to 35%. (b) 50-250 parts by weight of a poly(olefin) resin. (c) 0-100 parts by weight of a filler having an average particle size of at most 50 mu and preferably from 1-15 mu . (d) 0.25-2.5 parts by weight of additives and air bag covers derived from it.