Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Patent
1991-03-18
1994-10-25
O'Sullivan, Peter
Organic compounds -- part of the class 532-570 series
Organic compounds
Amino nitrogen containing
549315, 549316, 564296, 564297, 564298, 564497, C07C20990
Patent
active
053591399
ABSTRACT:
A tert-amine which contains an acid-activated color body precursor is treated to prevent it or a derivative thereof, e.g., an amine oxide, betaine, or quaternary ammonium compound, from turning pink when exposed to acidic conditions by contacting it with ascorbic acid.
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Borland James E.
Sauer Joe D.
Smith Kim R.
Albemarle Corporation
Hammond Richard J.
Hogan Patricia J.
O'Sullivan Peter
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