Patent ID: 8906996
Filing Date: 2014-12-09
Classification: B82Y,C01F,C01P,C08K,C09C,D21H,Y10T

Abstract:
1. Stabilized spherical, amorphous calcium carbonate particles with an average particle diameter in the range from 0.05 μm to 2.0 μm and a water content of not more than 5.0% by weight relative to the total weight of the particles and measured as residual moisture at 200° C., wherein: the calcium carbonate particles contain at least one substance located at the surface of the calcium carbonate particles, the substance having a molar mass greater than 100 g/mol and a formula R—X a fraction of crystalline calcium carbonate is less than 30% by weight, relative to the total weight of the calcium carbonate, and a specific surface area of the calcium carbonate particles is not more than 14 m