Oil-free wax-free solid cosmetic composition
US5928658A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 1997 |
| Grant date | Jul 27, 1999 |
| Priority date | — |
| Expiry date | Dec 5, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/43
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An oil-free and wax-free solid or powder-based cosmetic material having beneficial oil and wax characteristics without the detrimental effects thereof. The cosmetic material comprises pigments and/or pigment extenders which are surface treated with a hydrophobidizing material to become hydrophobic. The hydrophobidized cosmetic material is admixed with oil-free and wax-free binders in an aqueous slurry and then vacuum dehydrated and dried at an elevated temperature to provide the finished cosmetic product with excellent skin "feel", adhesiveness, extendibility, payoff (i.e., pickup of the product by an applicator) and uniformity characteristic of oil-containing cosmetics but without oil and its detrimental effects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.