Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Patent
1991-03-18
1992-04-07
Raymond, Richard L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Amino nitrogen containing
564463, 564497, C07C20990, C07C20982
Patent
active
051030527
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 an acetylalkylcarbinol.
REFERENCES:
patent: 3865880 (1975-02-01), Quelly et al.
patent: 3922306 (1975-11-01), Takaku et al.
Borland James E.
Sauer Joe D.
Smith Kim R.
Ethyl Corporation
Hogan Patricia J.
Kumar S.
Raymond Richard L.
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