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US 8,119,715 B2Granted
Powdery composition of a polymer and a flameproofing agent containing ammonium polyphosphate, method for the production thereof, and moulded body produced from said powder
AssigneeEvonik Degussa GmbH
InventorsSylvia Monsheimer, Maik Grebe, Franz-Erich Baumann
Life of this patent
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Abstract
A pulverulent composition that is a powder containing at least one polymer, and at least one flame retardant that contains ammonium polyphosphate, the powder having a maximum particle size of ≦150 μm and a median particle size of from 20 to 100 μm.
Claims20
A pulverulent composition, wherein the pulverulent composition is a powder comprising:
- at least one polymer, and at least one flame retardant that comprises ammonium polyphosphate wherein the powder has a maximum particle size of ≦150 μm and wherein the powder has a median particle size of from 20 to 100 μm, wherein the at least one polymer is at least a polyamide.
A molding, produced by a process for the layer-by-layer build-up of three-dimensional objects by selectively bonding portions of a powder to one another, the molding comprising:
- at least one flame retardant that comprises ammonium polyphosphate, and at least one polymer, wherein the powder has a maximum particle size of ≦150 μm and wherein the powder has a median particle size of from 20 to 100 μm, wherein the at least one polymer is at least a polyamide.
Dependencies are inferred from the claim text.