Synthetic ester lubricating oil composition containing particular t-butylphenyl substituted phosphates and stabilized hydrolytically with particular long chain alkyl amines
US4440657A · kind A · utility
22Cited by
14References
12Claims
0Family size
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Key dates
| Filing date | Sep 1, 1982 |
| Grant date | Apr 3, 1984 |
| Priority date | — |
| Expiry date | Sep 1, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10M2223/041
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A synthetic ester lubricating oil composition having effective high temperature properties and hydrolytic stability comprising a selected synthetic ester base oil and the additive combination of a selected tertiary-butylphenyl substituted phosphate ester and a selected alkyl amine. Additionally, a method for providing hydrolytically stable turbine oils which comprises adding a combination of a selected tertiary-butylphenyl phosphate and a selected alkyl amine to a synthetic ester base oil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.