Lubricating oil compositions and concentrates and the use thereof
US5652201A · kind A · utility
107Cited by
87References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 11, 1995 |
| Grant date | Jul 29, 1997 |
| Priority date | — |
| Expiry date | Jul 11, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2070/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Oleaginous compositions and additive concentrates therefor having enhanced performance characteristics comprise a) at least one oil-soluble overbased alkali or alkaline earth metal-containing detergent having a TBN of at least 200; and b) one or more oil-soluble boron-free additive compositions formed by heating (i) at least one boron-free oil-soluble ashless dispersant containing basic nitrogen and/or at least one hydroxyl group, with (ii) at least one inorganic phosphorus acid such that a liquid boron-free phosphorus-containing composition is formed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.