Phospho-sulfurized phenolic aldehyde amine alkylene oxide condensation product
US3957746A · kind A · utility
15Cited by
2References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 4, 1974 |
| Grant date | May 18, 1976 |
| Priority date | — |
| Expiry date | Oct 4, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2070/02
- 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.