High activity catalyst for the polymerization of alpha-olefins
AssigneeStandard Oil Company (Indiana)
InventorsGlen R. Hoff, Peter Fotis
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Abstract
High activity alpha-olefin polymerization catalysts comprising an organometallic promoter and a component prepared from at least one compound of a Group IVB, VB, or VIB metal, at least one support material which is a divalent metal salt of a phosphorus acid ester having at least one phosphorous acid ester group bonded to metal through oxygen or sulfur, and at least one alkylaluminum halide.
Claims45
An alpha-olefin polymerization catalyst comprising (A) an organometallic promoter selected from the group consisting of Group IA, IIA, IIB, IIIA, and IVA metal alkyls, hydrides, alkylhydrides, and alkylhalides;
- and (B) a solid, hydrocarbon insoluble component which is the reaction product of components comprising (1) at least one compound of a Group IVB, VB or VIB metal, (2) at least one divalent metal salt of a phosphorus acid ester, said salt containing the structure ##STR2## wherein M is a divalent Group IIA, IIB, IVA, VIIB, or VIII metal, each Y is independently oxygen or sulfur, A is hydrogen, --YH, R, or --YR, and each R is independently an organic radical or a halo- or amino-substituted organic radical, said organic radical being an alkyl radical of 1 to about 12 carbon atoms, an aryl radical of 6 to about 10 carbon atoms, or an alkaryl or aralkyl radical of 7 to about 12 carbon atoms, and (3) at least one alkylaluminum halide, wherein the atomic ratio of metal contained in (1) to metal contained in (2) ranges from about 0.05:1 to about 10:1 and the amount of (3) employed is at least effective to halide the metal contained in (1) and (2);
- said reaction being carried out under substantially anhydrous conditions.
An alpha-olefin polymerization catalyst comprising (A) an organometallic promoter selected from the group consisting of Group IA, IIA, IIB, IIIA, and IVA metal alkyls, hydrides, alkylhydrides, and alkylhalides;
- and (B) and solid, hydrocarbon insoluble component which is the reaction product of components comprising (1) at least one compound of a Group IVB, VB, or VIB metal, (2) at least one divalent metal salt of a phosphorus acid ester prepared by reacting (a) at least one divalent Group IIA, IIB, IVA, VIIB, or VIII metal salt of an organic acid with (b) at least one phosphorus acid ester of the formula
- Y.dbd.P(YR).sub.2 A
- wherein each Y is independently oxygen or sulfur, A is hydrogen, --YH, --YR, or R, and each is R is independently an organic radical or an amino- or halo-substituted organic radical, said organic radical being an alkyl radical of 1 to about 12 carbon atoms, an aryl radical of 6 to about 10 carbon atoms or an alkaryl or aralkyl radical of 7 to about 12 carbon atoms, wherein said components (a) and (b) are reacted in amounts such that a phosphorus acid ester salt having at least one phosphorus acid ester group bonded to metal through oxygen or sulfur is produced and the reaction temperature is such that said components (a) and (b) will react without substantial decomposition of (b);
- and (3) at least one alkylaluminum halide;
- wherein the atomic ratio of metal contained in (1) to metal contained in (2) ranges from about 0.05:1 to about 10:1 and the amount of (3) employed is at least effective to halide the metal contained in (1) and (2);
- said reaction being carried out under substantially anhydrous conditions.
Dependencies are inferred from the claim text.