Cleansing compositions containing stable silver
US9752106B2 · kind B2 · utility
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6Claims
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Key dates
| Filing date | Jan 6, 2015 |
| Grant date | Sep 5, 2017 |
| Priority date | — |
| Expiry date | Jan 6, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/22
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disclosed is a cleansing composition having pH of at least 9, said composition comprising: (i) 20 to 85 wt % anionic surfactant; and, (ii) a silver(I) compound having silver ion solubility (in water at 25° C.) of at least 1×10−4 mol/L, at a level equivalent to silver content of 0.01 to 100 ppm, wherein the free alkali content of said composition is less than 0.01%. The composition is a robust and improved cleansing composition with a stable colour.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.