| abstract |
A thermoplastic elastomer composition which comprises 10 to 60 parts by weight of a polyolefin (A), 30 to 87 parts by weight of a crosslinked rubber (B), 3 to 50 parts by weight of a softener (C) [provided that the sum of (A), (B), and (C) is 100 parts by weight], and 0.02 to 0.3 parts by weight of a phenolic heat stabilizer (D) and which, after 500-hour aging in a 130°C air oven, has an elongation at break of at least 80% of the initial value obtained before the aging; and a process for producing the composition. |