Preparation of an active ticl.sub.3 catalyst

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

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252429B, 260 336PQ, 526139, 526140, 526141, 526159, 526351, 526908, C08F 464

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active

042594669

ABSTRACT:
A titanium trichloride-catalyzed process for stereospecific polymerization of alpha-olefins, particularly propylene, to produce polymers of relatively high bulk density comprises employing as the TiCl.sub.3 catalyst component, used with an aluminum alkyl cocatalyst, a 0.1 to 30 millimicron fraction of a TiCl.sub.3 composition produced by

REFERENCES:
patent: 3681256 (1972-08-01), Blunt
patent: 3864278 (1975-02-01), La Heij et al.
patent: 3919180 (1975-11-01), Furukawa et al.
patent: 4110248 (1978-08-01), Sandis et al.

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