High-temperature resistant isocyanurate foams

Details High-temperature resistant isocyanurate foams High-temperature resistant isocyanurate foams

C - Chemistry, Metallurgy

08

G

403/13, 403/12.1

C08G 18/50 (2006.01) C08G 18/16 (2006.01) C08G 18/20 (2006.01) C08G 18/76 (2006.01)

Patent

CA 1044847

ABSTRACT OF THE DISCLOSURE Isocyanurate foams which retain their physical prop- erties at high temperatures are prepared by the reaction of a polymeric polyisocyanate and certain nitrogen-containing polyether polyols in the presence of a blowing agent and a 1,3,5-tris(N,N- dialkylaminoalkyl)-s-hexahydrotriazine trimerization catalyst. The resulting foams are particularly useful in high temperature insulation applications.

238501

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