Liquid clathrate aluminoxane compositions
AssigneeAlbemarle Corporation
InventorSamuel A. Sangokoya
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Abstract
Stable liquid clathrate aluminoxane compositions are obtained by the reaction, in aromatic solvents, of aluminoxanes such as, methylaluminoxane, with organic, inorganic or organometallic compounds, such as salts, which can dissociate or partially dissociate into cationic and anionic species (M-X species).
Claims7
A liquid clathrate composition which comprises the reaction product, in an aromatic solvent, of an aluminoxane and an organic, inorganic or organometallic compound which is effective to form a stable, liquid clathrate composition with said aluminoxane.
An aluminoxane clathrate composition which comprises methylaluminoxane, M-X species derived from an organic, inorganic or organometallic compound which is effective to form a stable clathrate with said methylaluminoxane, and an aromatic inclusion solvent.
A process for preparing a methylaluminoxane composition which is substantially free of trimethylaluminum comprising (a) reacting a solution of trimethylaluminum and methylaluminoxane in an aromatic solvent with an organic, inorganic or organometallic compound which is effective to form a stable, liquid clathrate with said methylaluminoxane so as to form a lower, liquid methylaluminoxane containing clathrate layer and an upper, aromatic solvent layer which contains said trimethylaluminum, and (b) separating said clathrate layer from said aromatic solvent layer.
Dependencies are inferred from the claim text.