Patent ID: 6652642
Filing Date: 2003-11-25
Classification: C01P,C08K,C09C,C09D

Abstract:
A composition comprising co-calcined kaolin, said composition having median diameter particle size of from about 0.5 &mgr;m to about 10 &mgr;m and a multimodal particle size distribution: said multimodal particle size distribution exhibiting, when measured using SEDIGRAPH 5100, at least two distinguishable components, at least one of said distinguishable components corresponding to a fine calcined component and occurring at a particle size less than about 1 &mgr;m, and at least one other of said distinguishable components corresponding to a coarse calcined component and occurring at a particle size greater than about 2 &mgr;m, wherein said fine calcined component and said coarse calcined component are present in a ratio sufficient to result in an oil absorption value greater than about 70 g. oil/100 g. clay.