| 摘要 |
The invention relates to modifiers for thermoplastic alloys and, in particular, soft polyamide alloys for use in automotive applications. In particular, the invention relates to non cross-linked modifiers for thermoplastic alloys comprising from 20 to 80% by weight based on the modifier of an interpolymer of ethylene and an alpha-olefin having from 4 to 12 carbon atoms grafted with an acid functionality, preferably maleic anhydride, having a Melt index of from 0.3 to 100 and a density of 0.85 to 0.91 prior to being grafted and from 80 to 20% by weight of an ungrafted diene containing interpolymer derived from ethylene and an alpha-olefin having three carbon atoms and an amount of a crosslinking component effective to provide cross-linking during subsequent melt blending with a condensation polymer having a melting point of at least 150°C. The modifier permits the making of thermoplastic alloys using the modifier.
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