Polyamide powder with long-lasting, consistently good flowability
AssigneeDegussa AG
InventorsFranz-Erich Baumann, Sylvia Monsheimer, Maik Grebe, Wolfgang Christoph, Dirk Heinrich, Holger Renners, Heinz Scholten, Thomas Schiffer, Joachim Muegge, Johannes Chiovaro
Life of this patent
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Abstract
A composition containing from 88 to 99.99% by weight of a polyamide, a compound of a polyamide and mixtures of these, and from 0.01 to 0.25% by weight of a flow aid where the drying loss from the flow aid after 5 days of conditioning at a relative humidity of 95% is less than or equal to 1%, determined by ISO 787/2.
Claims20
A composition comprising, by weight of the composition, of from 88 to 99.99% of a polymer component selected from the group consisting of nylon-12, nylon-11, nylon-6,10, nylon 6,12, nylon-10,12, nylon-6,6, and mixtures thereof, which polymer component is the sole polymer component in the composition, and from 0.01 to 0.25% of a flow aid selected from the group consisting of a hydrophobicized silica, a hydrophobic silica, and mixtures thereof,
- wherein the drying loss of the flow aid after 5 days of conditioning at relative humidity of 95% is less than or equal to 1% by weight.
Dependencies are inferred from the claim text.