Novel bis(phosphoranylidene) ammonium salts

Details Novel bis(phosphoranylidene) ammonium salts Novel bis(phosphoranylidene) ammonium salts

1990-12-19

1991-09-03

Siegel, Alan

Organic compounds -- part of the class 532-570 series

Organic compounds

Sulfonic acids or salts thereof

562 30, 562 83, 562 91, 562113, 564 82, 502168, C07C30300, C07C30700

Patent

active

050456326

ABSTRACT:
The invention is a novel bis(phosphoranylidene) ammonium salt useful as an initiator/catalyst in the reaction of oxirane groups in an epoxy resin with aromatic carbonate and/or ester linkages in monomeric, oligomeric, or polymeric carbonates, esters, or estercarbonates.

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patent: 4602070 (1986-07-01), Cavitt et al.
patent: 4618658 (1986-10-01), Hefner et al.
patent: 4782124 (1988-01-01), Hefner et al.
patent: 4943619 (1990-07-01), Bell et al.

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