The calcium carbonate particles of the present invention are coated on their surface with (1) a fatty acid mixture comprising (1A) at least one of saturated fatty acids and salts thereof and (1B) at least one of unsaturated fatty acids and salts thereof, the (1A):(1B) weight ratio being in the range of 30:70 to 70:30, and (2) an organic compound such as a phthalic ester. The calcium carbonate particles of the invention easily disperse in the resin and other components that constitute an adhesive composition, and impart excellent viscosity stability and highly improved adhesion to the resulting adhesive.
本发明的
碳酸钙颗粒表面涂有(1)
脂肪酸混合物,包括(1A)至少一种饱和
脂肪酸及其盐和(1B)至少一种不饱和
脂肪酸及其盐,(1A):(1B)重量比在 30:70 至 70:30 之间,以及(2)有机化合物,如
邻苯二甲酸酯。本发明的
碳酸钙颗粒很容易分散在构成粘合剂组合物的
树脂和其他成分中,并赋予所得粘合剂极佳的粘度稳定性和高度改善的粘合力。