Abstract: The invention relates to environmentally friendly flame retardant nucleating compositions, and corresponding formulations and processes useful for the production of polystyrene foams with low densities and a very low halogen content in the final product. The flame retardant composition according to the present invention achieves good flame retardancy and excellent recycling performances, with about the same loading of traditional halogenated compound, which does not affect the process and the physical and mechanical properties of the final foam and can be considered halogen free, according to some international standards.

Abstract: Hypophosphorous acid metal salts powders and non-flammable inorganic or organic aluminum salt of phosphorous are used as flame retardant agents in flame retarded compositions suitable for polymer materials.

Abstract: The present invention relates to halogen-free flame retardant compositions, comprising polyolefins polymers as active ingredient and a flame retardant system. The flame retardant system comprises at least an Hypophosphorous acid metal salt (preferred is Aluminium hypophosphite) as main flame retardant component, at least a sterically hindered N-alkoxyamine with a specific structure as first flame retardant synergic component, at least a silicon oxide or aluminium oxide or a mixture thereof with specific properties as second flame retardant synergic component.

Abstract: The present invention provides a flame retardant composition and a thermoplastic polyurethane composition both of which has excellent flame retardance. A phosphoramidate compound having a specific structure (component (B)) and a triazine-based compound (component (C)) are used as a flame retardant for a flame retardant composition and a flame retardant thermoplastic polyurethane composition. In one embodiment, the flame retardant thermoplastic polyurethane composition of the present invention includes a thermoplastic polyurethane resin (component (A)), a phosphoramidate compound (component (B)) and a triazine-based compound (component (C)).

Abstract: Hypophosphorous acid metal salts powders are used as flame retardant agents in flame retarded compositions suitable for polymer materials.

Abstract: The present invention relates to halogen-free flame retardant compositions, comprising polyolefins polymers as active ingredient and a flame retardant system. The flame retardant system comprises at least an Hypophosphorous acid metal salt (preferred is Aluminium hypophosphite) as main flame retardant component, at least a sterically hindered N-alkoxyamine with a specific structure as first flame retardant synergic component, at least a silicon oxide or aluminium oxide or a mixture thereof with specific properties as second flame retardant synergic component.