| 摘要 |
A reinforced, fire retardant, polyamide composition containing (a) at least 35% by weight of a fibre-forming polyamide, (b) 15 to 30%, by weight of glass fibres or particulate fillers, (c) 15 to 30%, by weight of melamine demi-sulphate, (d) at least 2.5%, by weight of a halogenated compound selected from the condensation product of 2 moles chlorocylopentadiene and 1 mole of 1,5-cyclooctadiene, brominated polystyrene, brominated polyphenylene oxide or a brominated epoxy resin, and (e) a synergist selected from at least one of zinc borate, zinc oxide and mixtures of antimony oxide and zinc borate, wherein the concentration of oxide present is between 0 and 5%, the concentration of zinc borate is between 0 and 25%, preferably between 2 and 15% by weight and the total weight of synergist is at least 1% by weight and wherein the weight percentages of the constituents total 100%.
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