Polymers functionalized with amino acids or amino acid derivatives, method for synthesizing same, and use thereof as surfactants in cosmetic compositions, particularly nail varnishes
US5958385A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1997 |
| Grant date | Sep 28, 1999 |
| Priority date | — |
| Expiry date | Mar 28, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q3/02
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to a chain end functionalised polymer of formula: ##STR1## in which: the polymer chain (P) is a hydrophobic chain obtained by radical polymerisation of at least one monomer, PA1 R represents a hydrogen atom or a linear or branched hydrocarbon chain having 1 to 8 carbon atoms optionally substituted with at least one group selected from CO.sub.2, NH.sub.2, OH or a phenyl group, itself being optionally substituted, PA1 A and B, identical or different, each represent a single bond, a saturated or unsaturated linear or branched hydrocarbon chain having from 1 to 16 carbon atoms, it being possible for it to contain an amide bond or a peptide chain having 2 to 4 amino acids, particularly natural amino acids, PA1 the NH.sub.2 and/or COOH groups being free or salified. The invention also relates to the use of the above products as surfactants and more particularly as wetting agents, dispersing agents of solid particles and for preparing microdispersions of polymers, in particular microgels and microlatexes. The invention also relates to cosmetic compositions incorporating these products and notably nail varnishes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.