Chlorine-free silver protective lubricant composition (II)
US4871465A · kind A · utility
16Cited by
9References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 30, 1987 |
| Grant date | Oct 3, 1989 |
| Priority date | — |
| Expiry date | Sep 30, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/253
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Silver protection in lubricant compositions is afforded by the combination of organo-sulfur compounds and hydrocarbon-substituted 1,2,4-triazoles, the latter being obtained by reaction of a substantially aliphatic, substantially saturated hydrocarbon-substituted dicarboxylic acid with an aminoguanidine compound. The invention is also directed to a method of silver protection utilizing the above combination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.