Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1974-06-13
1976-03-02
Smith, Edward J.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
252429C, 260 882R, 260 949E, C08F 402, C08F 1002
Patent
active
039417603
ABSTRACT:
Particulate polymers of ethylene are prepared by polymerization of ethylene or ethylene/.alpha. -monoalkene mixtures in a dry agitated bed (B) of the particulate polymer by means of a Ziegler/Natta catalyst system consisting of (1) a titanium-containing component and (2) an aluminum-containing component, the said components (1) and (2) being separately fed to the bed (B). Component (1) is a particulate reaction product (U) (of) (1.1) a substance of the formula TiCl.sub.3 . (AlCl.sub.3).sub.n where n is a number equal to from 0 to 0.34, and (1.2) a reaction product (R) of phosgene and a substnace (S) obtained from a substance of the formula Mg.sub.6 . Al.sub.2 . (OH).sub.16 . CO.sub.3 . (H.sub.2 O).sub.4 by calcination (heating), provided that (R) has a chlorine content of from 10 to 76% by weight and (U) has been obtained by milling (1.1) and (1.2) together.
REFERENCES:
patent: 3300457 (1967-01-01), Schmid et al.
patent: 3658722 (1972-04-01), Delbouillo et al.
patent: 3694421 (1972-09-01), Vetter
patent: 3718635 (1973-02-01), Tomoshige et al.
patent: 3773688 (1973-11-01), Trieschmann et al.
Herbeck Rudolf
Kolk Erich
Schick Hans
Schweier Guenther
Urban Friedrich
BASF - Aktiengesellschaft
Smith Edward J.
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