Overtreated higher dialkyl dimethyl ammonium clay gellants

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

1977-03-23

1982-12-21

Jacobs, L. T.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

523521, 524236, 524445, 524601, 524604, 260448C, C08L 6708, C08L 6706

Patent

active

043650309

ABSTRACT:
Novel higher dialkyl dimethyl ammonium clays, of superior gellant effectiveness in oxygenated organic liquids, can be produced by the overtreatment 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 quaternary chloride beyond the known ion exchange capacity of the clay. The overtreatment is preferably carried out in a mixture of water and organic solvent which disperses the clay and dissolves the quaternary ammonium salt.

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