Patent ID: 8389447
Filing Date: 2013-03-05
Classification: C01B,C09K

Abstract:
1. A composition comprising a mixture of a hectorite organoclay composition and an attapulgite organoclay composition, said hectorite organoclay composition comprising (i) a hectorite clay having a cation exchange capacity of at least 75 milliequivalents per 100 grams of clay, 100% active clay basis; and (ii) dimethyl bis[hydrogenated tallow] ammonium cation, and (iii) octyldecylmethyl methyl [polyoxylene (15)] ammonium cation, wherein said dimethyl bis[hydrogenated tallow] ammonium cation and octyldecylmethyl methyl [polyoxylene (15)] ammonium cation are in a weight percentage ratio of 1:1 and the total amount of dimethyl bis[hydrogenated tallow] ammonium cation and octyldecylmethyl methyl [polyoxylene (15)] ammonium cation is about equal to the cation exchange capacity of the hectorite clay; and said attapulgite organoclay composition comprising (i) an attapulgite clay having a cation exchange capacity of at least 5 milliequivalents per 100 grams of clay, 100% active clay basis; and (ii) dimethyl bis[hydrogenated tallow] ammonium cation, and (iii) octyldecylmethyl methyl [polyoxylene (15)] ammonium cation, wherein said dimethyl bis[hydrogenated tallow] ammonium cation and octyldecylmethyl methyl [polyoxylene (15)] ammonium cation are in a weight percentage ratio of 1:1 and wherein the total amount of dimethyl bis[hydrogenated tallow] ammonium cation and octyldecylmethyl methyl [polyoxylene (15)] ammonium cation is provided in an amount from about +25% to −25% of the cation exchange capacity of the attapulgite clay, wherein said hectorite organoclay composition is present in an amount ranging from 14% by weight to 30% by weight of the total mixture and said attapulgite organoclay composition is present in an amount ranging from 70% by weight to 91% by weight.