Method for dyeing keratinous material, comprising the use of an organosilicon compound, a colored effect pigment and a film-forming polymer II
US11766390B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 6, 2020 |
| Grant date | Sep 26, 2023 |
| Priority date | — |
| Expiry date | Jul 6, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/884
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A process and a kit-of-parts for dyeing keratinous material such as human hair are provided. An exemplary process includes applying an agent (a) to the keratinous material. The agent (a) includes (a1) at least one organic silicon compound. The method further includes applying an agent (b) to the keratinous material. The agent (b) includes (b1) at least one coloring compound comprising at least one effect pigment comprising a substrate platelet and a coating. The coating includes at least one layer wet-chemically prepared using a metal alkoxide and an organosilicon compound having a basic group. The agent (b) further includes (b2) at least one film-forming polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.