Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1994-09-30
1995-11-21
Cross, E. Rollins
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
502116, 502118, 502125, 502127, 502133, B01J 3102, B01J 3138
Patent
active
054687047
ABSTRACT:
Disclosed is a catalyst for the polymerization of olefins, which includes the product of the reaction between an Al-alkyl compound and a solid catalyst component containing a magnesium halide in active form, a titanium compound and an electron-donor selected from the 1,3-diketones of formula: ##STR1## wherein the radicals R are the same or different, the radicals R.sup.I are the same or different, and R and R.sup.I are C.sub.1 -C.sub.20 alkyl, C.sub.3 -C.sub.20 cycloalkyl, C.sub.6 -C.sub.12 aryl, C.sub.7 -C.sub.20 arylalkyl or alkylaryl radicals or hydrogen, with the proviso that at least one of the R radicals is not hydrogen and can be bonded with the other R radical to form a cyclic structure, and at least one of the R.sup.I radicals, which are not bonded to one another to form a cyclic structure, is a branched alkyl, cycloalkyl or aryl radical, or is bonded to one or both R radicals to form a cyclic structure.
REFERENCES:
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patent: 4540680 (1985-09-01), Speca
patent: 5068213 (1991-11-01), Albizzati et al.
Bracke et al. "Chemistry of the S.dbd.O Bond . . . " J. Chem. Soc. Perkin Trans. 2 (7), pp. 912-923. 1989.
Albizzati Enrico
Barino Luisa
Giannini Umberto
Morini Giampiero
Scordamaglia Raimondo
Cross E. Rollins
Meeks Timothy H.
Montell North America Inc.
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