Functionalised polymers, method for synthesising same and use thereof as surfactants, particularly in cosmetic compositions such as nail varnish
US5916985A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1997 |
| Grant date | Jun 29, 1999 |
| Priority date | — |
| Expiry date | Mar 28, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/57
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to a functionalised polymer of formula: EQU (P)--S--X--F (1) in which: PA1 (P) is a hydrophobic polymer chain obtained by radical polymerisation of at least one monomer, PA1 S represents sulphur, PA1 X represents: PA2 a saturated or unsaturated linear or branched hydrocarbon chain having 1 to 6 carbon atoms and substituted with at least one COOH or NH.sub.2 group in the free or salified form PA2 a peptide chain constituted of 2 to 4 amino acids, particularly natural amino acids, PA1 F represents a COOH or NH.sub.2 group, in the free or salified form, with the exception of the .omega.-dicarboxylic macromonomers resulting from the radical polymerisation of a monomer in the presence of a chain transfer agent constituted of thiomalic acid. The invention also relates to the use of the above functionalised polymers as well as to those resulting from the radical polymerisation of a monomer in the presence of thiomalic acid, as surfactant especially as wetting agent, dispersing agent, stabilising agent of dispersion of particles or for preparing microdispersions. The invention also relates to cosmetic compositions including these polymers and especially nail varnishes…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.