Methods for extinguishing petroleum-based fires, suppressing petroleum-released vapors and cleaning petroleum-contaminated surfaces
US6660698B2 · kind B2 · utility
4Cited by
15References
14Claims
0Family size
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Inventor
Key dates
| Filing date | Oct 29, 2001 |
| Grant date | Dec 9, 2003 |
| Priority date | — |
| Expiry date | Dec 14, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/925
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Compositions and methods for emulsifying a petroleum product that has been spilled upon a portion of the earth's surface or that is burning are based upon use of a nonionic, primary surfactant composition comprising a first ethoxylated sorbitol oleate and, preferably, a second ethoxylated sorbitol oleate, and a nonionic, secondary surfactant that is capable of stabilizing and solubilizing the primary surfactant composition such that the resulting emulsifying compositions have a hydrophilic/lipophilic balance between about 12.0 and about 13.5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.