Lubricating oil containing reaction products of polyisobutylphenol, esters of chloroacetic acid, and ethylene polyamine
US4083791A · kind A · utility
38Cited by
5References
6Claims
0Family size
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Key dates
| Filing date | Apr 16, 1976 |
| Grant date | Apr 11, 1978 |
| Priority date | — |
| Expiry date | Apr 16, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2070/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Amides of C.sub.50-200 alkylphenoxy-substituted aliphatic carboxylic acids made by reacting a C.sub.50-200 alkylphenol with a halocarboxylic ester (e.g., butyl chloroacetate) followed by displacement of the ester group with an amide group have a much higher content of amide than a product made using a halocarboxylic acid reactant in place of the ester. The product is an effective lubricating oil dispersant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.