Birch, Stewart, Kolasch & Birch, LLP
Olefin polymerization catalyst, olefins polymerization methods, and olefin polymer compositions, and heat molded products
 The invention provides catalysts which have a high polymerization activity, enable the obtaining of olefin polymers of wide molecular weight distribution, and which comprise (a)(a-1) a metallocene compound or (a-2) a titanium catalyst component containing magnesium, titanium, and halogen, (b) a compound of a transition metal from Groups 8 to 10 of the periodic table and is of the general formula shown below, and a cocatalyst component. ##STR1## The invention also provides olefin polymer compositions excellent in rigidity and impact resistance which can be produced using a catalyst comprising the transition metal compound (b) and which comprises a non-crystalline olefin polymer having a specific intrinsic viscosity, glass transition temperature and density, and another known olefin polymer. 
Mitsui Chemicals, INC.
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Shin-ya Kiyotaka Yasuhiko Tetsuo Kenji
Matsunaga Yorozu Suzuki Hayashi Sugimura