Patent ID: 7186763
Filing Date: 2007-03-06
Classification: C01P,C09C,Y10T

Abstract:
1. A material for imparting thixotropy comprising surface-treated calcium carbonate which results from surface treatment of calcium carbonate having a BET specific surface area of 10–100 m 2 /g with an unsaturated fatty acid (A) and a saturated fatty acid (B), characterized in that said material for imparting thixotropy exhibits a modal pore size peak at below 0.03 μm and a modal pore volume of 0.05–0.5 cm 3 /g on a pore size distribution curve derived from mercury porosimetry, and the (A)/(B) blending ratio of said unsaturated fatty acid (A) and saturated fatty acid (B) is 0.5–1.9.