Thickened, clear salt-rich composition, method for lightening same, and use thereof in cosmetics
US10849845B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2017 |
| Grant date | Dec 1, 2020 |
| Priority date | — |
| Expiry date | Jul 18, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/48
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Disclosed is a composition including (per 100% weight): a) 90 wt.-% to 99.0 wt.-% water including, in dissolved form, 0.002 mol/L to 0.1 mol/L of at least one salt of ammonium cation or of a monovalent or multivalent metal cation with an organic or inorganic anion; b) 0.5 wt.-% to 5 wt.-% of a crosslinked anionic polyelectrolyte; and c) 0.5 wt.-% to 5 wt.-% of a compound having formula (II): R1—(O—CH2—CH2)p—OH (II), where the weight ratio of the crosslinked anionic polyelectrolyte to the compound of formula (II) is greater than or equal to 0.2 and less than or equal to 2.0, and the molar ratio of the compound of formula (II) to the salt greater than or equal to 0.05 and less than or equal to 1. Also disclosed is a composition in cosmetics and a method for lightening the thickened salt-rich composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.