Process for preparing a Lawsonia inermis extract
US11987708B2 · kind B2 · utility
0Cited by
2References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2020 |
| Grant date | May 21, 2024 |
| Priority date | — |
| Expiry date | Nov 22, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2236/33
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present disclosure relates to a process for preparing a Lawsonia inermis extract which is rich in Lawsone. It also relates to the extract which may be obtained by said process and to a composition comprising thereof. The disclosure also relates to a method for dying fibers, in particular keratin fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.