Conductive polyphenylene ether-polyamide blend
AssigneeGeneral Electric Company
InventorsChristiaan H. Koevoets, Johannes Matthijssen
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Abstract
The present invention relates to a thermoplastic resin composition and a method for making the same. The composition comprises the reaction product of about 10 wt % to about 50 wt % polyphenylene ether, about 35 wt % to about 65 wt % polyamide, preferably about 0.4 wt % to about 3.0 wt % carbon fibrils, and optionally about 5 wt % to about 40 wt % talc, up to about 10 wt % compatibilizing agent and up to about 20 wt % impact modifier. The method comprises forming a carbon masterbatch with polyamide and introducing the masterbatch and the polyamide subsequent to compounding the polyphenylene ether with a compatibilizing agent.
Claims34
A method for manufacturing a thermoplastic resin composition, comprising:
- introducing carbon fibrils and a polyamide into a first mixture comprising a polyphenylene ether having an intrinsic viscosity of about 0.1 dl/g to about 0.60 dl/g as measured in chloroform at 25° C., a polyamide, and a compatibilizing agent to provide a second mixture comprising, based upon the total weight of the second mixture:
- about 10 to about 50 wt. % of the polyphenylene ether, about 35 to about 65 wt. % of the polyamide, about 0.4 to about 3 wt. % of the carbon fibrils, and about 0.4 to about 3 wt. % of the compatibilizing agent;
- and
- blending the second mixture at a temperature sufficient to melt the polyphenylene ether.
A method for manufacturing a thermoplastic resin composition, comprising:
- introducing carbon fibrils, talc and a polyamide into a first mixture comprising a polyphenylene ether having an intrinsic viscosity of about 0.10 dl/g to about 0.60 dl/g as measured in chloroform at 25° C., a polyamide, and a compatibilizing agent to provide a second mixture comprising, based upon the total weight of the second mixture:
- about 10 to about 50 wt. % of the polyphenylene ether, about 35 to about 65 wt. % of the polyamide, about 0.4 to about 3 wt. % of the carbon fibrils, about 5 wt. % to about 40 wt. % talc, and about 0.4 to about 3 wt. % of the compatibilizing agent;
- and
- blending the second mixture at a temperature sufficient to melt the polyphenylene ether.
Dependencies are inferred from the claim text.