Overtreated higher dialkyl dimethyl ammonium clay gellants

Details Overtreated higher dialkyl dimethyl ammonium clay gellants Overtreated higher dialkyl dimethyl ammonium clay gellants

C - Chemistry, Metallurgy

07

F

260/433, 134/53,

C07F 5/06 (2006.01) C08K 5/17 (2006.01)

Patent

CA 1103693

ABSTRACT OF THE DISCLOSURE Novel higher dialkyl dimethyl ammonium clays, of superior gellant effectiveness in oxygenated organic liquids, can be produced by the over- treatment of layer and chain type mineral clays via ion exchange reactions. For example, a layered dioctadecyl dimethyl ammonium montmorillonite, a superior gellant for alkyd resin based coatings, is prepared by the reaction of sodium montmorillonite with a 12 to 25% excess of the corresponding quat- ernary chloride beyond the known ion exchange capacity of the clay. The overtreatment is preferably carried out in a mixtureof water and organic solvent which disperses the clay and dissolves the quaternary ammonium salt.

292680

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