Organic compounds -- part of the class 532-570 series – Organic compounds – Aluminum containing
Patent
1992-03-18
1994-07-12
Dees, Jose G.
Organic compounds -- part of the class 532-570 series
Organic compounds
Aluminum containing
25218235, 25218313, C07F 506
Patent
active
053290321
ABSTRACT:
Polymethylaluminoxane compositions having increased solution stability in organic solvent and, in some cases, increased polymerization activity, which comprise moieties derived from an organic compound containing an electron-rich heteroatom (e.g., from Group V and/or Group VI of the Periodic Table) and a hydrocarbyl moiety. These compositions can be formed by reaction of trimethylaluminum, the organic compound, and water. They can also be formed by reaction of pre-formed polymethylaluminoxane the organic compound, which can be a hydrocarbyl group-containing compound containing an electron-rich heteroatom (e.g., oxygen, nitrogen, or sulfur), either with or without an active hydrogen atom connected to the heteroatom. The organic compound, in some embodiments, has also been found to be effective in increasing the catalytic activity of modified polymethylaluminoxane which, in addition to methyl, contain C.sub.2 and higher alkyl groups for enhanced solution stability.
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Chemical Abstracts, vol. 116, No. 129891j (1992).
Chemical Abstracts, vol. 100, No. 86626b (1984).
Deavenport Dennis L.
Malpass Dennis B.
Rabbit Connie S.
Tran Nam H.
Akzo Chemicals Inc.
Dees Jos,e G.
Fennelly Richard P.
Morris Louis A.
Nazario Porfirio
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