Patent ID: 6828375
Filing Date: 2004-12-07
Classification: B01D,C08K,C08L,F02M,H01B

Abstract:
An electroconductive resin composition, comprising:(a) 40-70% by weight of semi-crystalline polyamide resin; (b) 15-40% by weight of thermoplastic elastomer grafted with 0.5-2.0% by weight of maleic anhydride; (c) 9-20% by weight of carbon black powder; (d) 1-10% by weight of sulfonamide, represented by the following formula 1; and (e) 0.001 -0.02% by weight of dicarboxylic acid represented by the following formula 2, R1â€”SO2â€”NHâ€”R2â€ƒâ€ƒFormula 1 â€ƒ(wherein, R1 and R2 are selected from the group consisting of alkyl, benzyl, phenyl, alkylphenyl and dialkylphenyl, wherein the alkyl is CnH2n+1(n&lE;8)) HOOC(CH2)nâ€”COOH.â€ƒâ€ƒFormula 2