Combination of hollow microspheres of a thermoplastic synthetic material, hexagonal boron nitride and N-acyl lysine as a homogenization agent for cosmetic compacted powders
US5206012A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 1991 |
| Grant date | Apr 27, 1993 |
| Priority date | — |
| Expiry date | Feb 27, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/412
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A cosmetic ingredient homogenization agent, for use in assisting and improving the homogenization of the cosmetic ingredients of a compacted powder, is a combination of the following three components: x weight percent of hollow microspheres of a thermoplastic synthetic material having a specific mass lower than 0.1 g/cm.sup.3 and having a size lower than 30 .mu.m; y weight percent of particles of hexagonal boron nitride; and z weight percent of particles of N-acyl lysine. x, y and z are numbers which vary, respectively, as follows: x: 0.2-30; y: 02.-90; and z: 8-99.78. The sum x+y+z=100. This homogenization agent can be incorporated into a cosmetic composition in the form of a compacted powder in an amount ranging from 1-55, preferably 10-35, percent by weight based on the total weight of the composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.