Flameproof polyamide moulding compounds containing melamine cyanurate
AssigneeBASF SE
InventorsBrigitte Gareiss, Heiner Görrissen, Karlheinz Ulmerich, Harald Lauke
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Abstract
Flame-retardant thermoplastic molding compositions comprise A) from 40 to 98% by weight of a thermoplastic polyamide B) from 1 to 40% by weight of melamine cyanurate C) from 1 to 50% by weight of a fibrous filler which is pretreated with a silane compound and whose arithmetic mean fiber length (d50) is from 70 to 200 μm, or of an acicular mineral filler or a mixture of these D) from 0 to 30% by weight of other additives and processing aids where the total of the percentages by weight of components A) to D) is 100%.
Claims7
A flame-retardant thermoplastic molding composition consisting essentially of
- A) from 40 to 98% by weight of a thermoplastic polyamide
- B) from 1 to 40% by weight of melamine cyanurate
- C) from 1 to 50% by weight of a fibrous filler which is pretreated with a silane compound and whose arithmetic mean fiber length (d50) is from 70 to 200 μm and which has a d10 less than or equal to 60 μm and a d90 less than or equal to 350 μm, or of an acicular mineral filler with an L/D ratio of from 8:1 to 35:1 or a mixture of these
- D) from 0 to 30% by weight of other additives and processing aids where the total of the percentages by weight of components A) to D) is 100% selected from the group consisting of stabilizers and oxidation inhibitors, agents to counteract decomposition by heat and by ultraviolet light, lubricants, mold-release agents, dyes, pigments, plasticizers and impact modifying polymers.
Dependencies are inferred from the claim text.