Catalyst and process for production of polyolefins of improved morphology
AssigneeStandard Oil Company (Indiana)
InventorsGlen R. Hoff, Peter Fotis
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Abstract
Catalyst for production of polyolefins of improved morphology comprises (A) organometallic promoter and (B) product obtained by contacting (1) at least one oxygenated compound of phosphorus with (2) catalytic complex comprising an intimate association of at least one reduced Group IVB-VB metal halide, at least one divalent metal halide and at least one aluminum compound. Oxygenated phosphorus compound is used in an amount effective to improve polymer morphology without substantial adverse effects on other catalytic properties.
Claims11
A catalyst composition comprising (A) an organometallic promoter and (B) a component prepared by contacting (1) a supported catalyst complex comprising an intimate association of at least one reduced Group IVB or VB metal halide, at least one divalent metal halide and at least one compound of aluminum with (2) at least one oxygenated compound of phosphorus having at least one oxygen atom double-bonded to phosphorus in an amount and under conditions effective to improve polymer morphology.
A catalyst composition comprising an organometallic promoter and a component prepared by contacting (A) a reaction product of components comprising (1) at least one higher valent Group IVB or VB metal compound, (2) a support material comprising at least one catalytically inert divalent metal compound and (3) at least one organoaluminum compound corresponding to the formula AlR.sub.n X.sub.3-n, wherein R is hydrocarbyl, X is halogen, and 0<n.ltoreq.3, with (B) at least one oxygenated compound of phosphorus having at least one oxygen atom double-bonded to phosphorus in an amount and under conditions effective to improve polymer morphology.
Dependencies are inferred from the claim text.