Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1998-06-10
1999-08-03
Chang, Ceila
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
546187, 546191, 546216, 546217, 524 99, 252403, C07D21144, C08F 240
Patent
active
059327359
ABSTRACT:
Selected derivatives of 1-oxyl-2,2,6,6-tetramethyl-4-hydroxypiperidine are surprisingly effective as inhibitors to prevent the premature polymerization of acrylic and methacrylic acids, their esters, their amides, vinyl acetate and acrylonitrile in the presence of water. Some of these derivatives are new compounds.
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Cunkle Glen T.
Gande Matthew E.
Seltzer Raymond
Thompson Thomas F.
Chang Ceila
Ciba Specialty Chemicals Corporation
Hall Luther A. R.
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