C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 25/06 (2006.01) C08L 23/08 (2006.01) C08L 35/06 (2006.01) C08L 51/00 (2006.01) C08L 55/02 (2006.01) C08L 77/12 (2006.01)
Patent
CA 2346352
The invention concerns a composition comprising for 100 parts by weight: 99 to 60 parts of a styrene polymer (A); 1 to 40 parts of (B) + (C), (B) being a block polyamide and block polyether copolymer comprising essentially ethylene units -(C2H4-O)-; (C) being a compatibilising agent selected among copolymers (C1) with low styrene mass and an unsaturated carboxylic acid anhydride, ethylene copolymers (C2) and an unsaturated carboxylic acid anhydride, ethylene copolymers (C3) and an unsaturated epoxide, block SBS or SIS copolymers (C4) grafted by a carboxylic acid or an unsaturated carboxylic acid anhydride and their mixtures; B/C ranging between 2 and 10.
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.
Atofina
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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