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US 4,544,646 AGranted
Olefin polymerization catalyst and method
AssigneeChemplex Company
InventorsThomas J. Pullukat, Raymond E. Hoff
Life of this patent
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Abstract
An olefin polymerization and interpolymerization catalyst composition prepared by reacting at least one novel magnesium silylamide compound with a compound of a transition metal selected from Groups IIIB, IVB, VB and VIB of the fourth and fifth periods of the periodic table, and Groups VIIB and VIIIB of the fourth period.
Claims28
An olefin polymerization and interpolymerization catalyst prepared by reacting
- (a) at least one magnesium silylamide compound represented by the formulas:
- ##STR8## in which R is a straight or branched chain hydrocarbyl group comprising alkyl groups of about 1-18 carbon atoms and aryl groups of about 6 to 14 carbon atoms, and the R groups are the same or different, R' is R or hydrogen, Y is R or --SiR'.sub.3, all R' are the same or different, and all Y are the same or different, with
- (b) a compound of a transition metal selected from Groups IIIB, IVB, VB and VIB of the foruth and fifth periods of the periodic table, and Groups VIIB and VIIIB of the fourth period.
The method of making an olefin polymerization and interpolymerization catalyst, comprising the step of reacting:
- (a) at least one magnesium silylamide compound represented by the formulas:
- ##STR9## in which R is a straight or branched chain hydrocarbyl group comprising alkyl groups of about 1-18 carbon atoms and aryl groups of about 6 to 14 carbon atoms, and the R groups are the same or different, R' is R or hydrogen, Y is R or --SiR'.sub.3, all R' are the same or different, and all Y are the same or different, with
- (b) a compound of a transition metal selected from Groups IIIB, IVB, VB and VIB of the fourth and fifth periods of the periodic table, and Groups VIIB and VIIIB of the fourth period.
Dependencies are inferred from the claim text.