Process of forming crystals for use in a personal care composition
US10117813B2 · kind B2 · utility
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6Claims
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Key dates
| Filing date | Aug 11, 2017 |
| Grant date | Nov 6, 2018 |
| Priority date | — |
| Expiry date | Aug 11, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/596
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method of making a stable detersive surfactant containing personal care composition comprising the steps of emulsifying a stabilizing agent in the presence of anionic surfactant to form an emulsion containing droplets having a particle size of from about 0.1 to about 10 um. These particles are then cooled to form a stabilizing premix at a rate of about 10 to about 1000 C/min to form crystals from the droplets, the crystals having a maximum dimension of about 0.1 to about 3 um. These crystals are then added to a detersive surfactant containing personal care composition to increase stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.