Oiliness agent and water-in-oil emulsion containing same
US6683117B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2002 |
| Grant date | Jan 27, 2004 |
| Priority date | — |
| Expiry date | Jan 28, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K23/017
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An oiliness agent comprising a carboxylate of a composite metal hydroxide having a chemical composition represented by the following general formula (1),M2aM3x(OH)y(A)z.nH2O  (1) wherein, M2 indicates a divalent metal, M3 indicates a trivalent metal, A indicates an anion of an aliphatic carboxylic acid, a, x, y, and z are numbers satisfying the following formulas:a>0, 3x+2a−y−mz=0 (wherein m is a valency of anion A), 0.3≦a/x≦2.5 1.5≦y/(a+x)≦3.0 1.0≦(a+x)/z≦20.0, and n is a number not larger than 7. The oiliness agent exhibits excellent emulsifying properties such as dispersion stability and moisture retaining property without emitting odor and without a tendency of being colored, and is very useful for forming a water-in-oil emulsion which can be effectively used as a base material for cosmetics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.