Method for thickening a cosmetic formulation using an alkali swellable emulsion of a polymer with AMPS and which is rich in acrylic acid
US8642056B2 · kind B2 · utility
2Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2012 |
| Grant date | Feb 4, 2014 |
| Priority date | — |
| Expiry date | Mar 5, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F220/585
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Process for thickening a composition, through the use of a direct emulsion in water, which is alkali-swellable, of a polymer of the ASE or HASE type, which is both rich in acrylic acid and which has a certain quantity of AMPS. The use of such emulsions simultaneously allows there to be no obligation to use surfactants and organic solvents other than water, and allows the thickening phenomenon to be activated for pHs of less than 7: this latter characteristic is particularly advantageous for formulations intended to be used in contact with skin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.