Ointment base and method of use
US5336692A · kind A · utility
13Cited by
3References
42Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 18, 1991 |
| Grant date | Aug 9, 1994 |
| Priority date | — |
| Expiry date | Jun 18, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q17/04
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
High molecular weight petroleum fractions which have a low white oil content are admixed with a volatile siloxane, hexamethyldisiloxane, octamethylcyclotetrasiloxane and/or decamethylcyclopentasiloxane and a compound that is both hydrophobic and hydrophilic to provide an ointment base which enables these petrolatum fractions to be spread easily on the skin. Evaporation of the solvent leaves a high molecular weight petrolatum film on the skin that is nonirritating and yet highly resistant to mechanical removal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.