Thermoplastic resin composition and use thereof

Claim 1

A thermoplastic resin composition comprising 80-40 parts by weight of an aromatic polyamide (A) having an intrinsic viscosity [η] of 0.5-3.0 dl/g in concentrated sulfuric acid at 30°C and a melting point of at least 280°C, and being composed of recurring units comprising aromatic dicarboxylic acid units (i) comprising 30-100 mol% of terephthalic acid units, 0-40 mol% of aromatic dicarboxylic acid units other than terephthalic acid units and 0-70 mol% of aliphatic dicarboxylic acid units (wherein the total of all dicarboxylic acid units is 100 mol%) and diamine units (ii) comprising aliphatic alkylenediamine units and/or alicyclic alkylenediamine units and 20-60 parts by weight of a modified polyolefin (B) graft modified with an α,β-unsaturated carboxylic acid, anhydride or derivative thereof, which modified polyolefin (B) has a crystallinity index of at least 35% or a glass transition temperature of at least 90°C and an intrinsic viscosity [η] of 0.4-35 dl/g (wherein the total of the component (A) and component (B) is 100 parts by weight).