Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1998-09-03
2000-11-07
Bell, Mark L.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
502132, 502133, 502125, 502126, B01J 3100, B01J 3700, C08F 402, C08F 460
Patent
active
061436844
ABSTRACT:
The invention relates to solid catalyst components for the polymerization of olefins CH.sub.2 .dbd.CHR, in which R is hydrogen or a hydrocarbyl radical with 1-12 carbon atoms, comprising Ti, Mg, halogen and an electron donor compound selected from cyanoesters of formula (1): ##STR1## wherein R.sub.1 is a C.sub.1 -C.sub.20 linear or branched alkyl, alkenyl, cycloalkyl, cycloalkylalkyl, alkylcycloalkyl, aryl, arylalkyl or alkylaryl group; n is 0, 1, 2 or 3; R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are independently selected from hydrogen or C.sub.1 -C.sub.20 linear or branched alkyl, alkenyl, cycloalkyl, cycloalkylalkyl, alkylcycloalkyl, aryl, arylalkyl or alkylaryl groups; two or more of R.sub.2 and R.sub.3, and R.sub.4 and R.sub.5, can be joined to form a cycle. Said catalyst components when used in the polymerization of olefins are characterized by an excellent response to hydrogen and capability to produce polymers with broad Molecular Weight Distribution.
REFERENCES:
patent: 4297465 (1981-10-01), Smith
patent: 4298718 (1981-11-01), Mayr et al.
patent: 4399054 (1983-08-01), Ferraris et al.
patent: 4495338 (1985-01-01), Mayr et al.
Balbontin Giulio
Gulevich Yuri V.
Morini Giampiero
Bell Mark L.
Montell Technology Company B.V.
Pasterczyk J.
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