Patent ID: 8691906

Claim:
A process for producing at least monofilament from a thermoplastic polymer material comprising at least one polyester, nanoparticles and optionally further additives, said process comprising adding the at least one polyester, nanoparticles and optionally further additives to an extruder as partial or complete mixtures or separately and the thermoplastic polymer material being initially strand extruded, cooled and stretched and finally heat-conditioned at a temperature in the range from 40 to 120° C. for 0.01 to 10 min., wherein the nanoparticles comprise materials selected from the group consisting of highly branched or hyperbranched polycarbonates having an OH number of 1 to 600 mg KOH/g polycarbonate (to DIN 53240 Part 2), highly branched or hyperbranched polyesters of the type A x B y where x is at least 1.1 and y is at least 2.1, and mixtures thereof, mixed with metal oxides, semimetal oxides, or mixtures thereof, and wherein the nanoparticles optionally comprise further additives, and wherein a coating is applied atop the nanoparticles.