| abstract |
An olefin thermoplastic elastomer composition which is superior in the resistance to oils, heat resistance, formability and flexibility is provided, said elestomer composition comprising the components n (A) 40-90 parts by weight of a polypropylene resin having a melt flow rate (determined at 230° C. under a load of 2.16 kg according to ASTM D 1238) of 0.1-5 g/10 minutes, (B) 10-60 parts by weight of a copolymer rubber based on olefin, the contents of the components (A) and (B) summing up to 100 parts by weight, and (C) 20-150 parts by weight of a softener, n n wherein the composition is in such a cross-linked state that the gel content thereof amounts to 97 % by weight or higher. |