Isocyanurate preparation by catalytic, aminosilyl initiated cycl

Details Isocyanurate preparation by catalytic, aminosilyl initiated cycl Isocyanurate preparation by catalytic, aminosilyl initiated cycl

1982-02-01

1983-10-25

Ford, John M.

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

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

544222, 521128, 521902, 528 52, 526194, C07D25134, C08G 1802, C08F 416

Patent

active

044120737

ABSTRACT:
Monomeric or polymeric isocyanurates, e.g., polyisocyanate/polyisocyanurates, are prepared by catalytically cyclotrimerizing an isocyanate, e.g., an aliphatic or cycloaliphatic isocyanate, in the presence of an aminosilyl catalysis initiator, e.g., a mono- or diaminosilane, a silylurea or a silazane, having the structural formula:

REFERENCES:
Itoh et al., J. Chem. Soc. (C), pp. 2002-2009 (1969).
Saunders and Frisch, "Polyurethanes", pp. 64-65, Interscience Pub. (1962), New York.

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