| 摘要 |
PROBLEM TO BE SOLVED: To obtain an extremely non-rigid thermoplastic elastomer resin composition having excellent flexibility, heat distortion resistance characteristics, mechanical strength, oil resistance, moldability and processability free from greasiness. SOLUTION: This composition comprises (a) 100 pts.wt. of a block copolymer composed of at least two polymer blocks A mainly made from a vinylaromatic compound and at least one polymer block B mainly made from a conjugated diene compound and/or a hydrogenated block copolymer obtained by hydrogenating the block copolymer, (b) 150-400 pts.wt. of a softener for a nonaromatic rubber, (c) 1-20 pts.wt. of a vinylaromatic resin, (d) 5-20 pts.wt. of a hydrogenated petroleum resin and (e) 0.1-5.0 pts.wt. of an acrylic processing auxiliary and is obtained by melting and blending the components in the presence of an organic peroxide to cross-link them. |
