Polyester polyurethanes, process for preparing them, pseudolatices produced from the said polyester polyurethanes and their use in cosmetic compositions
US6770271B2 · kind B2 · utility
23Cited by
15References
60Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2000 |
| Grant date | Aug 3, 2004 |
| Priority date | — |
| Expiry date | Feb 23, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/06
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to polyurethanes and a process for preparing them. These polyester polyurethanes contain units corresponding to the following formulae (I) and (II): The polyester polyurethanes according to the present invention form pseudolatices and may be utilized as film-forming resin in cosmetic compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.