Preparation of flame retarded flexible molded foams

Details Preparation of flame retarded flexible molded foams Preparation of flame retarded flexible molded foams

C - Chemistry, Metallurgy

08

G

C08G 18/10 (2006.01) B29C 44/08 (2006.01) C08G 18/40 (2006.01) C08G 18/48 (2006.01) C08G 18/66 (2006.01) C08J 9/12 (2006.01) C08K 3/04 (2006.01) C08K 7/24 (2006.01)

Patent

CA 2716712

The invention relates to polyurethane molded foams containing flame-retardant solids (such as ammonium polyphosphate, melamine or expandable graphite), a process for the preparation thereof and the use of such polyurethane molded foams for construction components for which flame-retardant properties are desirable. They are polyurethane molded foams made of polyurethane molded foam, characterized in that the flame-retardant solid is present in the surface region in a proportion higher than a proportion of the flame-retardant solid in the interior region.

L'invention concerne des corps de mousse moulée de polyuréthane contenant des matières solides retardatrices de flamme, sur un procédé permettant de les préparer, ainsi que sur l'utilisation de ces corps de mousse moulée de polyuréthane pour des éléments de construction pour lesquels des propriétés de retard de flamme sont souhaitées. Il s'agit de corps de mousse moulée de polyuréthane en mousse moulée de polyuréthane, lesquels sont caractérisés par le fait que la fraction d'une matière solide retardatrice de flamme dans une zone de surface est plus grande que la fraction de cette matière solide retardatrice de flamme dans une zone interne du corps de mousse moulée de polyuréthane.

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