Ethylene oxide/propylene oxide/ethylene oxide (EO/PO/EO) triblock copolymer carrier blends
US5709852A · kind A · utility
38Cited by
13References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 1995 |
| Grant date | Jan 20, 1998 |
| Priority date | — |
| Expiry date | Dec 5, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q19/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A stable non-aqueous carrier for personal care compositions comprising: PA1 a) about 80-98% by weight of a non-ionic liquid triblock EO/PO/EO copolymer of MW=1000-5000; PA1 b) about 2-20% by weight of a non-ionic solid triblock EO/PO/EO copolymer of MW=4000-16,000.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.