Sodium sulfonate blends as emulsifiers for petroleum oils
US6225267A · kind A · utility
36Cited by
21References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2000 |
| Grant date | May 1, 2001 |
| Priority date | — |
| Expiry date | Apr 4, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2050/01
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to an emulsifier composition suitable for mixing with oil to form lubricants comprising at least one non-extracted salt of a natural petroleum sulfonic acid having about 15 wt-% to about 30 wt-% active content; at least one branched chain alkylaryl sulfonic acid or salt thereof; at least one linear alkylaryl sulfonic acid or salt thereof; and optionally at least one other sulfonic acid or salt thereof for adjusting the average equivalent equivalent weight of the resultant emulsifier composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.