Fatty ester compositions with improved oxidative stability
US7582126B2 · kind B2 · utility
4Cited by
3References
22Claims
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Key dates
| Filing date | Dec 20, 2005 |
| Grant date | Sep 1, 2009 |
| Priority date | — |
| Expiry date | Apr 25, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L1/23
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Compositions containing unsaturated fatty esters may be stabilized against atmospheric oxidation by the addition of an antioxidant package containing a phenolic oxidant and a nonphenolic oxygen scavenger, which may be a hydroxylamine, an amine N-oxide, an oxime, or a nitrone. If an amine N-oxide is used, it may be used with or without a phenolic antioxidant. Compositions treated in this manner show good resistance to atmospheric oxidation and resultant viscosity increase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.