COMPOSITIONS AND METHODS FOR INHIBITING OXIDATION OF NATURAL OIL BASED COMPOSITION USING AMINOPHENOL ANTIOXIDANT
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United States of America Patent
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Jul 4, 2024
app pub date -
Dec 20, 2023
filing date -
Dec 21, 2022
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Abstract
Compositions including a vegetable- or animal-derived oil, such as fatty acid alkyl esters, are stabilized against oxidation using an oxygenated aminophenol antioxidant. The aminophenol includes one or two carbon-containing group(s) including a hydroxyl group and/or ether group separated from the N atom by one or more carbon atoms. The oxygenated aminophenol antioxidants effective at controlling oxidation at moderate and even low amounts, useful in a variety of different oil and methyl ester fatty acid preparations, and were effective at elevated temperatures, and performed significantly better than convention antioxidants.
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