Fuel-barrier thermoplastic resin compositions and articles

摘要

A thermoplastic resin article which includes a layer made of a thermoplastic resin composition containing 50 to 97% by weight of a polyolefin A, 2 to 45% by weight of a barrier resin B, and 1 to 45% by weight of a modified polyolefin Ca and/or a styrene copolymer Cb. The ratio of the melt viscosities of the polyolefin A and the barrier resin B satisfies the formula: 0.7 < MV B /MV A < 2.8 wherein MV A is a melt viscosity (Pa·s) of the polyolefin A and MV B is a melt viscosity (Pa·s) of the barrier resin B, each measured under a shear rate of 100 s -1 at a temperature from MP + 2°C to MP + 10°C wherein MP is the melting point of the barrier resin B. The thermoplastic resin article exhibits good fuel barrier properties and impact resistance.