Cosmetic
US10406083B2 · kind B2 · utility
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1References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 28, 2016 |
| Grant date | Sep 10, 2019 |
| Priority date | — |
| Expiry date | Feb 23, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/412
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A cosmetic having excellent properties in transparency, spreadability, smoothness, skin compatibility and safety is prepared using a synthetic talc that is flake-like particles containing 2:1-type laminar crystals of silicate which have a basic structure of an octahedron sheet sandwiched between two tetrahedron sheets. The flake-like particle has a mean volume particle diameter of 0.5 to 100 μm, and 0.3° or less of half width at half maximum of peak present at 2θ equal to 9.4°±1° when measured by unoriented powder X-ray diffractometry (XRD) using CuKα rays, and the cosmetic is substantially free of Mg3Si2O5(OH)4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.