- - COATING COMPOSITION COMPRISING SUBMICRON CALCIUM CARBONATE-COMPRISING PARTICLES PROCESS TO PREPARE SAME AND USE OF SUBMICRON CALCIUM CARBONATE-COMPRISING PARTICLES IN COATING COMPOSITIONS

摘要

The present invention relates to a coating composition comprising an aqueous dispersion of submicron natural ground calcium carbonate particles contained in the liquid agent, the coating produced herein in accordance with certain additives, such as the presence of inorganic pigment (for example, TiO ₂₎ clear coat Or a polished and opaque coating. The composition comprises at least one natural heavy calcium carbonate having a median diameter of from 0.05 to 0.15 m in the case of a clear coating, but in the case of a polished and opaque coating, one or more natural heavy calcium carbonate having a median diameter of 0.05 to 0.3 [ And at least one pigment having a refractive index of 2.5 or more.