Polyamide composition containing a polyamide and an additive
AssigneeBASF SE
InventorsClaus Gabriel, Simon Gramlich, Rainer Ostermann, Florian Richter, Raphael Dabbous, Thomas Meier, Wolfgang Schrof
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Abstract
The present invention relates to a polyamide composition (PC) which comprises at least one polyamide (P) and at least one additive (A). The present invention further relates to the use of the polyamide composition (PC) in a selective laser sintering process, in an injection molding process, for producing molded articles and in an extrusion process.
Claims9
A polyamide composition (PC) which comprises at least one polyamide (P) and at least one additive (A), wherein the at least one additive (A) is selected from compounds of general formula (I)
- in which
- R1 and R3 are independently of one another selected from the group consisting of H, C1- to C10-alkyl and NR5R6,
- wherein
- R5 and R6 are independently of one another selected from the group consisting of H and C1- to C10-alkyl;
- R2 and R4 are independently of one another selected from the group consisting of H, C1- to C10-alkyl and NR7R8,
- wherein
- R7 and R8 are independently of one another selected from the group consisting of H and C1- to C10-alkyl;
- X represents N, O+ or S+;
- wherein the compounds of general formula (I) have a positive charge when X represents O+ or S+ and the compounds of general formula (I) then comprise an anion Y−,
- wherein
- Y− is selected from the group consisting of hydroxide, chloride, bromide, iodide, sulfate, sulfite, phosphate and phosphite, wherein the polyamide composition (PC) is present in the form of a powder having a particle size in the range from 1 to 200 μm,
- wherein the composition is a sintering powder;
- and wherein
- the polyamide composition (PC) comprises in the range from 95 to 99.9 wt % of the at least one polyamide (P) and in the range from 0.1 to 5 wt % of the at least one additive (A) in each case based on the sum of the weight percentages of the at least one polyamide (P) and of the at least one additive (A);
- wherein the polyamide composition has a D10 value in the range of from 10 to 30 μm.
Dependencies are inferred from the claim text.