Nickel bis-diorgano-orthophosphates their preparation and use

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal

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26068315D, C07C 321

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active

041170229

ABSTRACT:
This invention comprises novel organic-solvent-soluble nickel bis-diorgano-orthophosphates and their preparation by the reaction of certain simple salts or esters of divalent nickel with certain non-aromatic triorgano orthophosphates free of aliphatic unsaturation and separation of the novel compounds. The simple salts or esters include preferably the halides, nitrates and acetates of divalent nickel.
This invention further comprises the use of these novel compounds, preferably in solution, as catalysts. When used in conjunction with alkyl aluminum halides, controlled oligomerization of ethylene, propylene and other olefins is achieved with the formation of polymers with low degrees of polymerization, e.g. 2 to 10, preferably no more than about 6 mers. When certain vanadium catalysts are added to these combined catalysts, high polymers of such monomers are achieved with significant residual aliphatic unsaturation.

REFERENCES:
patent: 3390201 (1968-06-01), Drew
patent: 3467726 (1969-09-01), Griffin
patent: 3689588 (1972-09-01), Dunn
patent: 3949013 (1976-04-01), Yoo et al.
patent: 4052473 (1977-10-01), Yagi et al.
patent: 4055582 (1977-10-01), Fahey

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