Catalyst combinations for increasing trimer content in foam

Details Catalyst combinations for increasing trimer content in foam Catalyst combinations for increasing trimer content in foam

C - Chemistry, Metallurgy

08

G

C08G 18/18 (2006.01) C08G 18/09 (2006.01) C08G 18/16 (2006.01) C08G 18/24 (2006.01) C08G 18/32 (2006.01) C08G 18/70 (2006.01)

Patent

CA 2493404

Provided herein are compositions which are useful as catalysts in the production of polyisocyanurate foams. The compositions of the invention comprise N, N, N'-trimethylaminoethyl-ethanolamine in combination with one other catalysts useful in promoting trimerization of isocyanates. By promoting trimerization, isocyanate content of the foam is decreased which leads to a foam having better burn properties over prior art isocyanurate foams. Decreasing the isocyanate content of a foam should also lead to quicker de- mold of a molded foam because of reduced stickiness.

L'invention concerne des compositions utilisées en tant que catalyseurs dans la production de mousse en polyisocyanurate. Les compositions de l'invention comprennent de la N, N, N'-triméthylaminoéthyl-éthanolamine en combinaison avec un autre catalyseur utilisé dans la réalisation de la trimérisation d'isocyanates. Lors de la réalisation de la trimérisation, le contenu isocyanate de la mousse diminue ce qui permet d'obtenir une mousse présentant de meilleures propriétés de combustion que la technique antérieure. La diminution du contenu isocyanate d'une mousse peut également permettre le démoulage plus rapide d'une mousse moulée, grâce à une adhésivité réduite.

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