摘要:
There is provided a thermoplastic elastomer composition, comprising per 100 parts by weight of ethylene-propylene-diene monomer (EPDM), 20 to 30 parts by weight of polypropylene (PP), 7 to 30 parts by weight of ethylene octene rubber (EOR), 7 to 23 parts by weight of propylene butene rubber (PBR), and 55 to 65 parts by weight of mineral oil, wherein a content of said poly(1-butene) (PB) is small parts by weight. Thereby, there can be provided a thermoplastic elastomer composition and a molded member obtained by molding the same, which can be superior in the shape recovery property at the deformation, without deteriorating the tactile quality, gloss-change resistance, or formability of particles.
摘要:
The thermoplastic elastomer composition of this invention includes 2 through 14 mass% of PP; 19 through 35 mass% of PB-1, and 30 through 52 mass% of olefin-based rubber, and a weight ratio of PB-1/(PP + PB-1) is 56 through 90% and a weight ratio of PB-1/(PP + (PB-1) + olefin-based rubber) is 25 through 47%.