Polyoxybutylene-polyoxyethylene aqueous gels
US4465663A · kind A · utility
41Cited by
9References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 27, 1981 |
| Grant date | Aug 14, 1984 |
| Priority date | — |
| Expiry date | Jul 27, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S424/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Clear aqueous gels prepared from certain polyoxybutylene-polyoxyethylene block polymers are used for topically applied cosmetic and pharmaceutical compositions and remain gels at refrigerator and freezer temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.