Catalyst activators comprising expanded anions
AssigneeThe Dow Chemical Company
InventorRobert E. LaPointe
Life of this patent
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Abstract
A compound useful as a catalyst activator corresponding to the formula: (A*+a)b(Z*J*j)−cd, wherein: A* is a cation of charge +a, Z* is an anion group of from 1 to 50 atoms not counting hydrogen atoms, further containing two or more Lewis base sites; J* independently each occurrence is a Lewis acid coordinated to at least one Lewis base site of Z*, and optionally two or more such J* groups may be joined together in a moiety having multiple Lewis acidic functionality, j is a number from 2 to 12 and a, b, c, and d are integers from 1 to 3, with the proviso that a×b is equal to c×d.
Claims16
A compound useful as a catalyst activator corresponding to the formula:
- (A*+a)b(Z*J*j)−cd,
- wherein:
- A* is a cation of charge +a, selected from the group consisting of ammonium sulfonium, phosphonium, oxonium, carbonium, silylium, ferrocenium, Ag+, and Pb+2 cations,
- Z* is an anion group of from 1 to 50 atoms, not counting hydrogen atoms, further containing two or more Lewis base sites;
- J* independently each occurrence is a Lewis acid compound having from 3 to 100 atoms not counting hydrogen coordinated to at least one Lewis base site of Z*, and optionally two or more such J* groups may be joined together in a moiety having multiple Lewis acidic functionality,
- j is a number from 2 to 12 and
- a, b, c, and d are integers from 1 to 3, with the proviso that a×b is equal to c×d.
Dependencies are inferred from the claim text.