Production of high BN alkaline earth metal single-aromatic ring hydrocarbyl salicylate-carboxylate
US6348438B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 3, 1999 |
| Grant date | Feb 19, 2002 |
| Priority date | — |
| Expiry date | Jun 3, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10M159/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An overbased alkaline earth metal single-aromatic ring hydrocarbyl salicylate-carboxylate is produced by overbasing a mixture of a single-aromatic ring hydrocarbyl salicylate, at least one solvent, a metal hydroxide, and an alkyl polyhydric alcohol alkaline earth metal hydroxide, by contacting that mixture with carbon dioxide under overbasing reaction conditions. The alkyl group of the alkyl polyhydric alcohol has from one to five carbon atoms. The overbased metal single-aromatic ring hydrocarbyl salicylate is treated, before, during, or subsequent to overbasing, with a long-chain carboxylic acid to form a single-aromatic ring hydrocarbyl salicylate-carboxylate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.