Polyamide graft as hot-melt adhesive, and elastomer blend

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

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Details

20415915, 525 92, 525426, C08F 254, C08J 328, C08F28304

Patent

active

043784488

ABSTRACT:
A polyamide suitable as a hot-melt adhesive contains pendent graft copolymerized chains derived from aromatic compounds having an olefinically unsaturated moiety, e.g., styrene, lower methacrylates, epoxy-containing unsaturated compounds, acrylonitrile or methacrylonitrile, but contains no free graft comonomer.
The polyamides show improved peel strengths, especially at low and high temperatures. The low temperature properties may be further improved by incorporating an elastomer, preferably a thermoplastic elastomer, part of which is compatible with the graft copolymerized chains.

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