Catalyst component for use in the polymerization of .alpha.-olef

Details Catalyst component for use in the polymerization of .alpha.-olef Catalyst component for use in the polymerization of .alpha.-olef

1994-02-18

1996-04-23

Nazario-Gonzales, Porfirio

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

Organic compounds

Heavy metal containing

556 12, 556 28, 556 43, 556 53, 556 58, 502117, 502103, 526160, C07F 1700, C07F 728, C07F 900, C07F 1100

Patent

active

055105025

ABSTRACT:
A catalyst component for use in the polymerization of .alpha.-olefins, comprising a compound represented by the following general formula I!: ##STR1## wherein R.sup.1 s represent a hydrogen atom, a C.sub.1-6 hydrocarbon group or a C.sub.1-12 hydrocarbon group containing silicon; each of R.sup.2 and R.sup.3 which forms the condensed ring represents a divalent C.sub.3-20 saturated or unsaturated hydrocarbon group, provided that at least one of R.sup.2 and R.sup.3 forms a ring condensed with the cyclopentadiene which is a seven- to twelve-membered ring having an unsaturated bond inherent in R.sup.2 or R.sup.3 ; Q represents a C.sub.1-20 divalent hydrocarbon group, a silylene group, a silylene group with a C.sub.1-20 hydrocarbon group, a germylene group, or a germylene group with a C.sub.1-20 hydrocarbon group; X and Y represent H, a halogen, a C.sub.1-20 hydrocarbon group, or a C.sub.1-20 hydrocarbon group containing oxygen, nitrogen or phosphorus; and M represents a Group IVB to VIB transition metal of the Periodic Table. Production of .alpha.-olefin polymers having a high melting point and a high molecular weight in a high yield and a process for producing .alpha.-olefin polymers is made possible upon the use of the catalyst.

REFERENCES:
patent: 5120867 (1992-06-01), Welborn, Jr.
patent: 5145819 (1992-09-01), Winter et al.

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