| 摘要 |
PROBLEM TO BE SOLVED: To obtain a non-halogenated resin coping with environmental problems by using a resin composition obtained by mixing polypropylene, a hydrogenated block copolymer, a thermoplastic copolymer and a softner of a paraffin-based process oil, each mixing ratio being in a specific range. SOLUTION: 15-21 wt.% of polypropylene having MFR of 0.5-10, 25-41 wt.% of a hydrogenated block copolymer having a number average molecular weight of 100,000-200,000, the polymer block thereof comprising an aromatic vinyl compound and a conjugated diene compound as major components, the content of the aromatic vinyl compound being 5-50 wt.% and hydrogenation degree of the diene component being not less than 70%, 12-22 wt.% of a thermoplastic elastomer having xylene-insoluble content of 30-50 wt.% which is a dynamically or statically vulcanized mixture of ethylene-α.olefin(-conjugated diene) copolymer and an olefin-based resin and 26-38 wt.% of a softner having viscosity at 40 deg.C of 200-500 cSt and an aniline point of 130-160 deg.C. |
