abstract |
Polyamide-based particles 10.10, characterized in that the particles have an average particle size d50 determined as described in the description from 1 to 50 μm, an apparent density according to DIN 53644 of 180 to 300 g / l and a ratio of NH2 terminal groups / COOH as determined by alkalimetric titration with KOH in hot benzyl alcohol at 180 ° C and by acidimetric titration with HClO 4 at room temperature in m-cresol from 50:50 to 95: 5. |