| 摘要 |
A composition is provided which can be used for overmolding onto a polar substrate, comprising:
a) 100 pbw of one or more hydrogenated monovinyl aromatic block copolymer having at least two resinous endblocks of polymerized monovinyl arene and at least one elastomeric midblock comprising polymerized and subsequently hydrogenated conjugated diene or dienes,
b) from 10 to 60 pbw of a random copolymer of monovinyl arene and a diene, with a diene content of between 5 and 25% and a melt flow rate (MFR, ASTM D 1238-95 @ 150°C/2.16 kg) of 10 to 40 g/10 minutes, and optionally
c) from 0 to 150 pbw of a plasticizer,
d) from 0 to 100 pbw of one or more engineering thermoplastics, and
e) from 0 to 2 pbw of antioxidants,
and shaped polymer substrates overmolded with said compositions.
|
