Halogen-free flame retardant polycarbonate compositions
AssigneeItalamatch Chemicals S.p.A.
InventorsSilvestro Costanzi, Maurizio Leonardi
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Abstract
The present invention relates to a thermoplastic halogen-free flame retardant composition comprising at least an hypophosphorous acid metal salts as halogen-free flame retardant agent, and at least an aromatic polycarbonate s resin and/or its blends. The flame retardant composition may in addition comprise additives and fillers. The invention also refers to moulded thermoplastic articles made by using the flame retardant composition.
Claims22
Thermoplastic composition comprising at least an hypophosphorous acid metal salts as halogen-free flame retardant agent, and without the presence of a nitrogen containing flame-retardant agent, and at least an aromatic polycarbonate resin wherein said hypophosphorous acid metal salt has an average particle size of the powder (d50%) lower than 40 μm and an highest particle size below 100 μm.
Dependencies are inferred from the claim text.