Turbine oils with excellent high temperature oxidative stability
US6326336A · kind A · utility
19Cited by
23References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1998 |
| Grant date | Dec 4, 2001 |
| Priority date | — |
| Expiry date | Oct 16, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/135
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A turbine lubricant consisting of (A) alkylated diphenylamine and/or phenylnaphthylamines, and (B) sulfurized olefins and/or sulfurized fatty acids and/or ashless dithiocarbamates and/or tetraalkylthiuram disulfides, with the balance containing (C) base oils characterized by very low sulfur contents (<0.03 wt %) and a high level of saturates (>90 volume %), and optionally (D) neutral rust inhibitors, show superior oxidative stability and provide adequate corrosion protection and sludge control for turbine oil and R&O oil applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.