| 摘要 |
A thermoplastic elastomer based on olefin which can be produced simply by melt-kneading 5-60% by weight of a polyethylene resin (A) together with 40-95% by weight of an ethylene/alpha-olefin copolymer (B) with optional subsidiary component(s) before the kneaded mass is molded into a formed product, the said elastomer being capable of recycling for reclamation and exhibiting the following characteristics {circle around (1)} to {circle around (3)} namnely,{circle around (1)} in which X denotes the JIS A-hardness value (a dimensionless value) of the thermoplastic elastomer based on olefin determined according to the prescription of JIS K 6301 and Y represents the permanent compressive strain value (expressed by %) of the thermoplastic elastomer based on olefin determined according to the prescription of JIS K 6301 under a condition of 70° C.x22 hours,{circle around (2)} tensile strength in the raqnge from 5 to 30 MPa and{circle around (3)} a permanent elongation of 18% or less determined according to the prescription of JIS K 6301.
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