Ube Industries, Inc.

Grand Polymer Co., Ltd.

Yasuhisa Sakakibara

Shigeru Ikai

Hiroyuki Ikeuchi

Masayoshi Oue

Toshifumi Fukunaga

Hiroshi Satoh

Process for polymerization of alpha-olefin and alpha-olefin polymer

A (polycyclic secondary-amino)dialkoxysilane favorably employable as a catalyst for polymerization of &agr;-olefin can be prepared by reacting tetrachlorosilane, or a mono(C -C )alkyltrichlorosilane with a polycyclic secondary-amine in a non-hydrous, non-alcoholic organic solvent in the presence of a hydrogen chloride-trapping reagent, to produce a (polycyclic secondary-amino)chlorosilane and reacting the (polycyclic secondary-amino)chlorosilane with an alkali metal alkoxide or an alkaline earth metal alkoxide in the presence of a lower alcohol.

Preparation of (polycyclic secondary-amino)dialkoxysilane

A di(polycyclic amino)dialkoxysilane which is of value as an auxiliary catalyst component for polymerizing an .alpha.-olefin to produce an .alpha.-olefin polymer having a high stereoregularity and a broad molecular weight distribution is prepared by reacting a secondary polycyclic-amine compound with an organomagnesium compound in an ether solvent, to produce a polycyclic-amido magnesium compound, and reacting the polycyclic-amido magnesium compound with a tetraalkoxysilane in a solvent mixture of an ether solvent and an inert hydrocarbon solvent.

Process for preparing di (polycyclic amino) dialkoxysilane

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Ichihara, Japan

Yasuhisa Sakakibara