Polymerization catalyst and method
AssigneeChemplex Company
InventorsThomas J. Pullukat, Raymond E. Hoff
Life of this patent
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Abstract
A catalyst and method in which the catalyst is used in association with an aluminum cocatalyst in the polymerization and copolymerization of 1-olefins. The catalyst is prepared by reacting certain organic silicon compounds with silica, alumina or the like having surface hydroxyl groups, or a mixture thereof, in which the silicon compound reacts with these surface hydroxyl groups, followed by reacting the product of this with an organomagnesium compound and further reacting this product with an alcohol or reacting the product with an alcohol and then with an organomagnesium compound and then with a halide or alkoxide of titanium, vanadium, zirconium or mixtures of these.
Claims41
A solid catalyst for use with an alkyl or aryl aluminum cocatalyst in the polymerization and copolymerization of 1-olefins, and prepared by:
- (1) reacting an organic silicon compound with silica or alumina having surface hydroxyl groups or a mixture thereof, said silicon compound being reactive with said surface hydroxyl groups;
- (2) reacting the product of (1) with a Group IIA organometallic compound;
- (3) reacting the product of (2) with an alcohol;
- and
- (4) reacting the product of (3) with a halide or alkoxide of titanium, vanadium, zirconium or mixtures of these.
The method of making a solid catalyst for use with an alkyl or aryl aluminum cocatalyst in the polymerization and copolymerization of 1-olefins, comprising:
- (1) reacting an organic silicon compound with silica or alumina having surface hydroxyl groups or a mixture thereof, said silicon compound being reactive with said surface hydroxyl groups;
- (2) reacting the product of (1) with a Group IIA organometallic compound;
- (3) reacting the product of (2) with an alcohol;
- and
- (4) reacting the product of (3) with a halide or alkoxide of titanium, vanadium, zirconium or mixtures of these.
Dependencies are inferred from the claim text.