Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Patent
1986-10-07
1989-01-10
Lone, Werren B.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
252401, 252403, 562598, C07C 6762
Patent
active
047975040
ABSTRACT:
This invention relates to compositions and methods of inhibiting acrylate monomer polymerization at elevated temperatures comprising adding to the acrylate monomer an effective amount for the purpose of (a) a hydroxylamine having the formula ##STR1## wherein R and R' are the same or different and are hydrogen, alkyl, aryl, alkaryl or aralkyl groups, and (b) a para-phenylenediamine or derivative thereof having at least one N-H group. Preferably the phenylenediamine is a para-phenylenediamine having the formula ##STR2## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are the same or different and are hydrogen, alkyl, aryl, alkaryl, or aralkyl groups with the proviso that at least one of R.sup.1, R.sup.2, R.sup.3 or R.sup.4 is hydrogen.
REFERENCES:
patent: 3408422 (1968-10-01), May
patent: 3426063 (1969-02-01), Gros
patent: 3674651 (1972-07-01), Otsuki et al.
patent: 4016198 (1977-04-01), Wilder
patent: 4017544 (1977-04-01), Mullins
patent: 4267365 (1981-05-01), Findeisen
patent: 4480116 (1984-10-01), Clonce et al.
Douglas et al., "Screen and Select Vinyl Monomer Inhibitors", Hydrocarbon Processing, 6/82, pp. 109-112.
Betz Laboratories Inc.
Clarke Vera C.
Lone Werren B.
Ricci Alexander D.
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