C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 18/22 (2006.01) C08G 18/76 (2006.01) C08L 75/04 (2006.01) C09J 175/04 (2006.01)
Patent
CA 2380574
An organometallic composition, suitable for use in curing polyisocyanate compositions, comprises a complex of at least one metal selected from iron, cobalt and aluminium and at least one .beta.-dicarbonyl compound wherein when the metal is iron (II) or cobalt (II) the molar ration of .beta.-dicarbonyl compound to metal is in the range from 2.1:1 to 10:1, and when the metal is aluminium (III), iron (III) or cobalt (III) the molar ration of .beta.-dicarbonyl compound to metal is in the range from 3.1:1 to 10:1. A polyisocyanate composition containing the claimed organometallic composition and a process for binding lignocellulosic material is also described and claimed.
L'invention concerne une composition organométallique utilisée pour durcir les compositions de polyisocyanate renfermant un complexe formé d'au moins un métal sélectionné dans le fer, le cobalt et l'aluminium et au moins un composé beta -dicarbonyle. Lorsque le métal représente un fer (II) ou cobalt (II), le rapport molaire du composé beta -dicarbonyle et du métal est de l'ordre de 2,1:1 et 10:1 et lorsque le métal représente un aluminium (III), fer (III) ou cobalt (III), le rapport molaire du composé beta -dicarbonyle et du métal oscille entre 3,1:1 et 10:1. L'invention concerne aussi une composition de polyisocyanate contenant la composition organométallique et un procédé de liaison d'une matière lignocellulosique.
Partridge Martin Graham
Skinner Christopher John
Acma Limited
Gowan Intellectual Property
LandOfFree
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