Treatment compositions, apparatus and methods for modifying keratinous surfaces
US10391042B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2015 |
| Grant date | Aug 27, 2019 |
| Priority date | — |
| Expiry date | Jun 8, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/87
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A treatment composition for, among other things, treating human skin. These compositions are stable, particulate containing, printer compositions that have one or more particulate suspending agents. The suspending agents can be present in a concentration of from about 0.1% to about 5%, by weight. The particles in the particulate composition have a combined Particle Size Distribution D50 in the range of about 200 ηm to about 500 ηm, and preferably the compositions have a zeta potential of negative 20 or less, or greater than positive 20. The particulate suspending agent is preferably a polyacrylate composition, even more preferably sodium polyacrylate. The particles can be present in a concentration of from about 1% to about 30.0%, by weight, and preferably the particles in the particulate composition have a combined Particle Size Distribution D90 of less than about 1 μm. The particulate compositions may contain TiO2 particles and a second particulate composition which is an iron oxide based colorant particulate composition, another colorant particulate composition, or both.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.