Functional fluid containing metal salts of esters of hydrocarbyl succinic acid or anhydride with thio-bis-alkanols as antioxidants
US4344853A · kind A · utility
27Cited by
11References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 3, 1981 |
| Grant date | Aug 17, 1982 |
| Priority date | — |
| Expiry date | Jun 3, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/08
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
There are disclosed zinc and nickel salts of mono- or di- esters of C.sub.12 -C.sub.50 aliphatic hydrocarbon substituted succinic acids or anhydrides, such as octadecenyl succinic anhydride, with thio-bis-alkanols such as dithiodiethanol. The products are useful as antioxidants for lubricating oils and functional fluids, especially automatic transmission fluids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.