Use of mixtures containing spherical metal particles and metal flakes as laser marking agents or laser welding agents, and laser markable and / or laser weldable plastics

摘要

Use of a mixture comprising spherical metal particles and metal flakes as laser-marking- or laser-weldability-agents in a plastic, where the particle size distribution of the spherical metal particles and the metal flakes in the mixture determined by laser granulometry, in the form of the volume-averaged cumulative particle size distribution, has a D m i x t u r e 9 0value of less than 100 mu m and a D m i x t u r e 5 0value of less than 60 mu m, is claimed. Independent claims are included for: (1) a masterbatch comprising a mixture with spherical metal particles and metal flakes as well as at least one dispersion carrier; and (2) a laser-markable and/or laser-weldable plastic comprising a mixture to be used with spherical metal particles and metal flakes or a masterbatch.