Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1993-10-21
1996-06-25
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...
502103, 502118, 502153, 502154, 526160, B01J 3100
Patent
active
055299660
ABSTRACT:
A catalyst active in the polymerization of alpha-olefins is formed by:
(a) a bis(cyclopentadienyl) bis(amide) derivative of an element of Group IVB of the Periodic Table of the Elements, to be defined by means of the formula: ##STR1## wherein M represents a metal of Group IVB, each of R.sup.1, R.sup.2, R.sup.3 and R.sup.4, and Cp have the same meaning as reported in the disclosure, and
(b) an aluminoxane co-catalyst.
This catalyst finds use in the processes of ethylene and other alpha-olefins polymerization and copolymerization.
REFERENCES:
patent: 5055438 (1991-10-01), Canich
Ballato Evelina
Gila Liliana
Luciani Luciano
Milani Federico
Cross E. Rollins
Enichem S.p.A.
Irzinski E. D.
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