Mannich base composition
US4088586A · kind A · utility
7Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1976 |
| Grant date | May 9, 1978 |
| Priority date | — |
| Expiry date | Jun 7, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2070/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A new Mannich base, prepared by condensing tetrapropenylphenol, formaldehyde and diethylenetriamine wherein the molar ratio of reactants is 1 mol tetrapropenylphenol to 0.5 to 0.85 mols formaldehyde to at least 0.3 mols of diethylenetriamine, and the calcium salt thereof are useful as dispersant additives for lubricating oils, particularly for use in marine cylinder lubricating oils.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.