English Abstract
Development of Thermoplastic Elastomers using Metallocene Technology
Masato Kijima
Idemitsu Petrochemical Co., Ltd.Tokyo,Japan
Nippon Gomu Kyokaishi,(2003),76(
8), 294-298 General Review in Japanese.

We feature of polymers obtained by metallocene catalysts and development of new elastomeric polyolefins are descrived here. Especially, ethylene-norbornene copolymer as ethylene based elastomer, and new elastomeric polypropylene as propylene based one are introduced previous report. That new polypropylene is prepared by specific control technology with metallocene catalysts. I assume that ethylene based elastomer will have been main material in elastomeric polyolefin market in the future. However, I think that new propylene based elastomer has high potential.

Metallocene, Ethylene-norbornene copolymer, Elastomeric polypropylene,Stereo-block polypropylene, Symmetry,Post-metallocene