Method and manufacturing of fatty acid esters of polyoxyalkylene alkyl ethers
US5374750A · kind A · utility
11Cited by
1References
12Claims
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Key dates
| Filing date | Sep 1, 1993 |
| Grant date | Dec 20, 1994 |
| Priority date | — |
| Expiry date | Sep 1, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C67/26
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
In a method of manufacturing fatty acid esters of polyoxyalkylene alkyl ethers, fatty acid alkyl ester is reacted with alkylene oxide in the presence of a catalyst consisting essentially of a magnesium oxide added with at least one metal ion selected from the group consisting of Al.sup.3+, Ga.sup.3+, In.sup.3+, Tl.sup.3+, Co.sup.3+, Sc.sup.3+, La.sup.3+, and Mn.sup.2+ to manufacture a compound having the following formula: ##STR1## wherein each of R.sub.1 and R.sub.3 independently represents an alkyl group, R.sub.2 represents an alkylene group, and n is a positive integer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.