| 摘要 |
Described are blends based on vinyl-aromatic polymers endowed with highly satisfactory mechanical characteristics and unchanged rheological properties, even after successive processing operations at temperatures equal to or higher than 200 DEG C, comprising: (a) 10 to 90% by weight of vinyl-aromatic polymer containing from 0.5 to 5% by weight of vinyl-aromatic monomer-conjugated diene linear block copolymer and from 5 to 15% by weight of diene rubber; (b) 5 to 50% by weight of polyolefin; and (c) 5 to 40% by weight of vinyl-aromatic monomer-conjugated diene star-shaped copolymer having a diene content of from 5 to 35% by weight. b |
