Process to prepare aluminoxanes
AssigneeNouryon Chemicals International B.V.
InventorPeter Van Der Kruijs
Life of this patent
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Abstract
Process to prepare alkylaminoxane by reacting, in the absence of solvent, 1 molar equivalent of alkylaluminium with 0.1 to 0.8 molar equivalent of a substituted allylic alcohol of the formula (I) wherein R1 and R2 are independently selected from aliphatic and aromatic hydrocarbon groups, and each R3, R4, and R5 is independently selected from aliphatic and aromatic hydrocarbon groups and a hydrogen atom.
Claims20
Process for preparing alkylaluminoxane by reacting, in the absence of solvent, 1 molar equivalent of alkylaluminium with 0.1 to 0.8 molar equivalent of a substituted allylic alcohol of the formula
- wherein R1 and R2 are independently selected from aliphatic and aromatic hydrocarbon groups, and R3, R4, and R5 are independently selected from aliphatic and aromatic hydrocarbon groups and a hydrogen atom.
Process for preparing alkylaluminoxane by reacting, in the absence of solvent, 1 molar equivalent of alkylaluminium with 0.6 to 0.75 molar equivalent of a substituted allylic alcohol selected from the group consisting of 4-methyl-3-pentene-2-ol, 3-methyl-2-pentene-1-ol, 3-methyl-2-hexene-1-ol, 3-ethyl-2-pentene-1-ol, (trans)-3,7-dimethyl-2,6-octadien-1-ol, and 3-methyl-2-butene-1-ol.
Process for preparing alkylaluminoxane by reacting, in the absence of solvent, alkyl aluminium with methacrylic acid or a conjugated unsaturated carbonyl-functional compound of the formula
- wherein R1 and R2 are independently selected from aliphatic hydrocarbon groups, R3 is an aliphatic hydrocarbon group or a hydrogen atom, and R4 is an aliphatic hydrocarbon group, a hydrogen atom, or a hydroxyl group in a ratio of 0.1 to 0.8 molar equivalent oxygen atoms in the part —C═O(R4) of the methacrylic acid or conjugated unsaturated carbonyl-functional compound per molar equivalent of aluminium atoms in the alkylaluminium.
Dependencies are inferred from the claim text.