| abstract |
Laser-writable, black-colored blends of carbonate and polyester resins are provided by the incorporation of a black colorant formulation comprising carbon black and a fatty acid metal salt. Zinc stearate is a preferred fatty acid metal salt. The black colored resin blends can be inscribed using standard YAG lasers and maintain an excellent balance of other properties including surface aesthetics, physical properties, heat resistance, chemical resistance and processability. |