Patent ID: 7393897

Claim:
A method for manufacturing a thermoplastic elastomer composition, comprising: continuously feeding a mixture comprising 10 to 60 parts by weight pelletized olefinic resin (A) having a mean grain diameter of from 1 to 10 mm, 40 to 90 parts by weight of a pulverized product (B) obtained by pulverizing bulk ethylene/α-olefin/unconjugated polyene copolymer rubber obtained by copolymerizing ethylene, an α-olefin having 3 to 20 carbon atoms, and an unconjugated polyene that is not melted or pelletized after pulverization wherein the size of the pulverized product is such that 90% or more of the particles thereof can pass through a punching plate having holes of 10 mm diameter, where the total quantity of components (A) and (B) is 100 parts by weight, and 0.02 to 5 parts by weight of a crosslinking agent (C) into a continuous kneading machine; and performing a dynamic heat treatment to yield the thermoplastic elastomer composition, wherein said thermoplastic elastomer composition has excellent tensile characteristics and molded appearance.