Hydraulic fluid compositions
US4470918A · kind A · utility
19Cited by
4References
43Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 19, 1983 |
| Grant date | Sep 11, 1984 |
| Priority date | — |
| Expiry date | Apr 19, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2050/01
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A hydraulic fluid comprising at least one polyethoxylated fatty amino carboxylate zwitterion. Preferred compositions contain polyethoxylated fatty amines and fatty amino carboxylates. Fatty acid quaternary ammonium salt-based biocides, polyethoxylated fatty amino corrosion inhibitors, polyhydroxy alcohol freezing-point depressants and dispersants may be included. Concentrates of the compositions and their method of preparation are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.