Cosmetic composition comprising silica aerogel particles and silicone oils
US9956434B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2011 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | Feb 7, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to a composition comprising a mixture: of hydrophobic silica aerogel particles having a specific surface area per unit of mass (SM) ranging from 500 to 1500 m2/g and a size expressed as the volume-average diameter (D[0.5]) ranging from 1 to 1500 μm, and of at least one first linear silicone oil having a viscosity greater than 50 mm2/s and of at least second and third linear silicone oils having a viscosity less than or equal to 50 mm2/s. The present invention also relates to a cosmetic composition comprising a mixture: of hydrophobic silica aerogel particles having a specific surface area per unit of mass (SM) ranging from 500 to 1500 m2/g and a size expressed as the volume-average diameter (D[0.5]) ranging from 1 to 1500 μm, and of at least one first linear silicone oil having a viscosity less than 10 mm2/s and of at least one second linear silicone oil having a viscosity greater than or equal to 10 mm2/s. The mixture of silica aerogel particles and linear silicone oils makes it possible to obtain compositions that are comfortable and soft on application, having mattifying and soft-focus properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.