Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Patent
1997-06-23
1998-11-24
Raymond, Richard L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Amino nitrogen containing
546290, 5483171, 548484, 548541, 548543, 564 5, 564300, 564301, 564305, 564307, 564315, 564335, 564426, 564427, 564428, 564430, 564437, C07C37336
Patent
active
058409840
ABSTRACT:
Odor formation during storage of (hydrocarbylthio)aromatic amines due to formation and release of odoriferous sulfur-containing species such as dihydrocarbyldisulfides, is suppressed. To accomplish this, a small amount of N,N-dihydrocarbylhydroxylamine odor-inhibitor (e.g., N,N-diethylhydroxylamine) is blended with the (hydrocarbylthio)aromatic amine. This enables products such as a mixture of 3,5-di(methylthio)-2,4-diaminotoluene and 3,5-di(methylthio)-2,6-diaminotoluene) to be stored for long periods of time with significantly reduced formation and release of odoriferous sulfur-containing species.
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Brown William R.
Lambeth Gregory H.
Wiggins Paul L.
Albemarle Corporation
Raymond Richard L.
Spielman, Jr. E. E.
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