Reshapable hair styling composition comprising polyurethane dispersions
US6613314B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 27, 2000 |
| Grant date | Sep 2, 2003 |
| Priority date | — |
| Expiry date | Jul 27, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/06
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A reshapable hair styling composition comprising, in a cosmetic vehicle appropriate for hair, at least one dispersion comprising at least one polyurethane in a water and/or solvent medium, said at least one polyurethane being obtained by reacting:(a) an isocyanate terminated polyurethane prepolymer being obtained by reacting: (i) at least one polyactive hydrogen compound insoluble in the medium of the dispersion, wherein said polyactive hydrogen compound is chosen from alkyl, aryl, and aralkyl structures optionally substituted in and/or on the structure by N, O, and/or S groups; (ii) at least one polyisocyanate, and (iii) at least one polyactive hydrogen compound soluble in the medium of the dispersion,(b) at least one polyfunctional chain extender; and(c) at least one chain terminator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.