Stabilization of unsaturated carboxylic acid esters with mixture

Details Stabilization of unsaturated carboxylic acid esters with mixture Stabilization of unsaturated carboxylic acid esters with mixture

1976-01-02

1977-04-05

Killos, Paul J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2603985, 260485S, C07C 6954

Patent

active

040161986

ABSTRACT:
A method of inhibiting polymerization of unsaturated carboxylic acid esters and improved unsaturated carboxylic acid ester compositions are described. The method comprises, and the compositions are prepared by, incorporating into the ester composition a combination comprising polyalkyleneamine and arylenediamine of the formula ##STR1## in which X is hydrogen, chloro, trichloromethyl, trifluoromethyl, nitro, lower alkyl, lower alkoxy or phenoxy, R is hydrogen or alkyl, and R.sub.1 is alkyl or phenyl or R and R.sub.1 together with the nitrogen atom is a heterocycle selected from the group consisting of pyrrolidinyl, 2,5-dimethyl pyrrolidinyl, piperidino and hexahydro-1H-azepin-1-yl.

REFERENCES:
patent: 3855281 (1974-12-01), Sullivan et al.
patent: 3876686 (1975-04-01), Sato

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