| 摘要 |
PROBLEM TO BE SOLVED: To provide a thermoplastic polymer composition which is excellent in heat resistance, reduced in unmelted gel and surface thickness, and gives a formed article, particularly, suitable for use in a high temperature atmosphere. SOLUTION: The thermoplastic polymer composition comprises; (a) 100 parts by mass of a block copolymer containing two or more polymer blocks A comprising a vinyl aromatic compound and one or more polymer block B comprising a conjugate diene compound, wherein 35% or more of carbon-carbon double bond derived from the conjugate diene compound is hydrogenated, the constitutional unit derived from the vinyl aromatic compound is contained in an amount of 5 to 75% by mass and the weight average molecular weight is 400,000 or more; (b) 50 to 300 parts by mass of a softening agent for non-aromatic-based rubber; and (c) 10 to 100 parts by weight of an olefin-based resin.
|
