Method for enhancing scalp active deposition
US11833237B2 · kind B2 · utility
0Cited by
73References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 9, 2021 |
| Grant date | Dec 5, 2023 |
| Priority date | — |
| Expiry date | Oct 7, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/805
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention is directed to a method of making a personal care composition comprising the following steps: combine a particulate scalp active with an anionic polymer to form a mixture (a); combine the mixture (a) with a cationic polymer having a charge density of 3 to 10 meq/gram to form a mixture (b); combine mixture (b) into a personal care composition base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.