Organoclay compositions containing two or more cations and one or more organic anions, their preparation and use in non-aqueous systems
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United States of America Patent
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Jul 4, 1995
Issued Date -
N/A
app pub date -
May 11, 1994
filing date -
Nov 14, 1991
priority date (Note) -
Expired
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Abstract
A novel organophilic clay gellant comprising the reaction product of: (a) a smectite clay having a cation exchange capacity of at least 75 milliequivalents per 100 grams of natural clay without impurities; (b) a first organic cation in an amount of from about 75% to about 150% of the cation exchange capacity of the smectite clay; (c) a second organic cation provided by a polyalkoxylated quaternary ammonium salt; and (d) one or more organic anion(s) that is capable of reacting with said first and second organic cations, to form an organic cation-organic anion complex with said smectite clay. The organophilic clay gellant is used in a non-aqueous fluid system such as paints, inks, and coatings to provide improved theological properties.
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