Method for mechanically working cobalt-containing metal
US4976919A · kind A · utility
14Cited by
12References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 1988 |
| Grant date | Dec 11, 1990 |
| Priority date | — |
| Expiry date | Mar 4, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2070/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for mechanically working cobalt-containing metals is carried out in the presence of a synthetic metal working liquid containing specific tertiary amines which are alkanol amines capable of reducing both the release of cobalt and the corrosion of iron. The alkanol amine compounds contain one or more hydrophobic groups, such as alkyl groups or higher alkylene oxy groups. A concentrate is provided which contains the alkanol amine compounds and which is suitable, after dilution with water, for use in mechanical working.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.