Lubricant composition
US4058468A · kind A · utility
16Cited by
3References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 7, 1976 |
| Grant date | Nov 15, 1977 |
| Priority date | — |
| Expiry date | Jun 7, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2010/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A dispersant-antiwear lubricating oil additive is made by reacting a high molecular weight hydrocarbon-substituted phenol with aldehyde and ammonia or amines having a reactive hydrogen atom to form a Mannich condensation product which is reacted with an alkylene oxide and P.sub.2 S.sub.5 to form the additive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.