| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a case for a storage disk provided with mechanical strength and antistatic property by blending a prescribed thermoplastic elastomer and an acrylamide copolymer in a propylene resin at a prescribed ratio. SOLUTION: A case excellent in antistatic property can be obtained by using the thermoplastic resin composition consisting of a 3-30 pts.wt. thermoplastic elastomer (component B) and a 5-40 pts.wt. acrylamide copolymer (component C) relative to 100 pts.wt. of a crystalline propylene resin (component A). The component A has a melt flow rate of 1-80g/min, the component B is an olefin copolymer elastomer (b<1> ) having a Mooney viscosity (ML1+4 (100 deg.C) of 10-85 and styrene, or styrene containing 15-20wt.% of its derivative and having the weight-average molecular weight of 50,000-220,000 or its derivative or the hydrogenated conjugated diene block copolymer (b<2> ), and the component C is an acrylamide copolymer.</p> |
