Method of making emulsion containing quaternary ammonium functional silanes and siloxanes
AssigneeDow Corning Corporation
InventorsBethany K. Johnson, Zuchen Lin
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Abstract
Oil-in-water (O/W) and water-in-oil (W/O) emulsions and microemulsions containing silanes or siloxanes having quaternary ammonium groups are made by reacting organic quaternary ammonium compounds having epoxide groups or halohydrin groups, with silanes or siloxanes having amino groups. The reaction is carried out in an aqueous polar phase containing a surfactant. The emulsions and microemulsions are especially useful for treating hair, skin, or the underarm.
Claims8
A method of making oil-in-water (O/W) and water-in-oil (W/O) emulsions and microemulsions containing silanes or siloxanes having quaternary ammonium groups in their molecule as the oil phase of the emulsion or microemulsion, comprising reacting (i) an organic quaternary ammonium compound having epoxide groups or halohydrin groups in its molecule, with (ii) a silane or siloxane having amino groups in its molecule, in the presence of (iii) a surfactant, components (i)-(ii) being dispersed in (iv) an aqueous polar phase.
Dependencies are inferred from the claim text.