Antistatic compositions based on polyamide

Details Antistatic compositions based on polyamide Antistatic compositions based on polyamide

C - Chemistry, Metallurgy

08

K

C08K 3/04 (2006.01) B29D 23/00 (2006.01) C08L 77/00 (2006.01)

Patent

CA 2342711

The invention concerns an antistatic polyamide composition comprising at least one polyamide and a sufficient amount of carbon black to make it antistatic. The invention is characterised in that the carbon black is at least a carbon black selected among those having a specific BET surface, measured according to the ASTM D 3037-89 standard, from 5 to 200 m<2>/g, and a DBP absorption, measured according to the ASTM D 2414-90 standard, from 50 to 300 ml/100 g.

Cette composition de polyamide antistatique, comprenant au moins un polyamide et une quantité suffisante de noir de carbone pour le rendre antistatique, est caractérisée par le fait que le noir de carbone est au moins un noir de carbone choisi parmi ceux ayant une surface spécifique BET, mesurée selon la norme ASTM D 3037-89, de 5 à 200 m2/g, et une absorption DBP, mesurée selon la norme ASTM D 2414-90, de 50 à 300 ml/100 g.

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