Demulsifier composition for automatic transmission fluids
US4396518A · kind A · utility
2Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 26, 1981 |
| Grant date | Aug 2, 1983 |
| Priority date | — |
| Expiry date | Oct 26, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/08
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
There is disclosed an automatic transmission fluid containing an improved demulsifier additive being a combination of an acylated alkoxylated isopentylphenolic resin and a propoxylated-ethoxylated amylphenolic resin, the additive being effective at concentrations of 30 to 50 ppm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.