COATED ALKALINE-EARTH METAL CARBONATE PARTICLES, USE OF SUCH PARTICLES IN THE PRODUCTION OF CONSTRU

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This invention relates to alkaline-earth metal carbonate particles at least partly coated with a coating agent comprising a polyacrylic acid, or a polyacrylic acid derivative or a mixture thereof, with a content with respect to the uncoated alkaline-earth metal carbonate of at least 0.2% by weight and at most of 10% by weight, to the use of such particles in the production of construction materials and to construction materials containing such particles.