Ethanolamine salt of N-Nitrosophenylhydroxylamine and inhibiting

Details Ethanolamine salt of N-Nitrosophenylhydroxylamine and inhibiting Ethanolamine salt of N-Nitrosophenylhydroxylamine and inhibiting

1985-03-05

1988-09-20

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

25218625, 562598, 564112, 585 4, C07C 6762, C07C 5150, C07C11100

Patent

active

047727403

ABSTRACT:
The ethanolamine salt of N-nitrosophenylhydroxylamine ("NPHA") is effective as a polymerization inhibitor for ethylenically unsaturated monomers. The ethanolamine salt can be prepared by reacting ethanolamine with the ammonium salt of NPHA. Advantageously, the ethanolamine salt is soluble in high concentrations in water and a variety of polar organic solvents.

REFERENCES:
patent: 2954314 (1960-09-01), Metzger et al.
patent: 3344135 (1967-09-01), Middleton
patent: 3413349 (1968-11-01), Bertsch et al.
patent: 3426063 (1969-02-01), Gros
patent: 3959358 (1976-05-01), Jurisch
patent: 4210493 (1980-07-01), Stewart et al.
patent: 4310676 (1982-01-01), Schropp
Chemical Abstracts, vol. 100, No. 24, Jun. 11, 1984, p. 2, No. 192330K, (Zhang et al.), "Study on the Polymerization Inhibitors of Isoprene".

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