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

1996-02-06

Teskin, Fred

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526126, 526132, 526133, 526134, 526160, 526170, 526351, 5263485, 556 11, 556 12, 556 43, 556 53, 556 58, 556 87, 502103, 502117, 502152, 502154, 502155, C08F 464, C07F 702, C07F 1700

Patent

active

054896592

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 independently represents a divalent group selected from the group consisting of a hydrocarbon group having 3 to 30 carbon atoms and a silicon-containing hydrocarbon group having 1 to 30 carbon atoms and 1 to 6 silicon atoms, provided that at least one of R.sup.2 and R.sup.3 is said silicon-containing hydrocarbon group; 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: 5104838 (1992-04-01), Fujita et al.
patent: 5268495 (1993-12-01), Riepl et al.
patent: 5314973 (1994-05-01), Welborn, Jr.

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