Organic transition metal complex

Details Organic transition metal complex Organic transition metal complex

1993-09-07

1994-12-20

Dees, Jose G.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heavy metal containing

556 12, 556 14, 556 27, 556 28, 526127, 526160, 526161, 526166, 526352, 502104, C07F 1700, C07F 728, C08F 444, C08F11002

Patent

active

053747534

ABSTRACT:
An organometal complex is provided which is represented by the general formula (1) below: ##STR1## wherein Cp.sup.1 and Cp.sup.2 are respectively a substituted or unsubstituted cyclopentadienyl group; R.sup.1 is a group selected from alkylene groups or arylalkylene groups having 1 to 20 carbons, dialkylsilylene groups, dialkylgermanylene groups, alkylphosphinediyl groups, or alkylimino groups and R.sup.1 crosslinking Cp.sup.1 and Cp.sup.2 together; m is 0 or 1; M is selected from titanium, zirconium, and hafnium; R.sup.2, R.sup.3, and R.sup.4 are independently hydrogen, a hydrocarbon group of 1 to 12 carbons, an alkoxyl group, or an aryloxy group; and MAO is a methylalumoxane group. This organometal complex is capable of producing selectively an olefin polymer without use of any other additional catalyst component.

REFERENCES:
patent: 4607112 (1986-08-01), Grubbs et al.
patent: 5171871 (1992-12-01), Miyashita
Makromol. Chem., Rapid Communications, vol. 13, No. 1, Jan. 13, 1992 "Hydrooligomerization of Propene:A `Fingerprint` of a Ziegler-Natta Catalyst, 2a)" Paolo Corradini et al., pp. 21-24.

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