Rheology regulator in form natural calcium carbonate crushed to a high degree of fineness and its use in polymeric compositions

摘要

Described is a rheology regulator composed of a natural calcium carbonate, crushed to a high degree of fineness with a specific surface area of 14 to 30 m2/g measured according to the BET method to ISO 4652 and the oil absorption is greater than 16 measured according to ISO 787-V; and its use for the preparation of sealants, adhesives or plastisols.