Cyanate-based, carbon dioxide-filled structured foams and...

Details Cyanate-based, carbon dioxide-filled structured foams and... Cyanate-based, carbon dioxide-filled structured foams and...

C - Chemistry, Metallurgy

08

G

C08G 18/79 (2006.01) C08G 18/08 (2006.01) C08G 18/10 (2006.01) C08J 9/08 (2006.01) C08J 9/35 (2006.01)

Patent

CA 2638619

The present invention concerns a polycyanurate foam comprising the structural element A and either terminal amino groups and/or at least one of the following structural elements B, C, or D: (see formulas A, B, C or D) wherein the foam has closed pores that contain carbon dioxide. This foam can be produced in that a substance is worked into the starting material for the polycyanurate that releases water or alcohol approximately at the start of polymerization spontaneously or thermally or catalytically induced. The water/alcohol reacts with free cyanate groups under cleavage of CO2. The resulting amino groups can react further in the polymerization.

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