Method of making emulsion containing quaternary ammonium functional silanes and siloxanes
US6787603B2 · kind B2 · utility
16Cited by
8References
8Claims
0Family size
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Key dates
| Filing date | Nov 27, 2002 |
| Grant date | Sep 7, 2004 |
| Priority date | — |
| Expiry date | Nov 27, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2383/04
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.