초록

Certain substituted diaryl amines are used to inhibit the polymerization of ethylenically unsaturated monomers; for example, unsaturated carboxylic acids and derivatives thereof.

대표청구항 ▼

A composition comprising a mixture of (A) a polymerizable ethylenically unsaturated monomer selected from the group consisting of unsaturated carboxylic acids and the esters, anhydrides, amides, halides and nitriles thereof, vinyl halides, vinyl acetate, vinyl alcohol and aromatic vinyl compounds an

A composition comprising a mixture of (A) a polymerizable ethylenically unsaturated monomer selected from the group consisting of unsaturated carboxylic acids and the esters, anhydrides, amides, halides and nitriles thereof, vinyl halides, vinyl acetate, vinyl alcohol and aromatic vinyl compounds and (B) an amount sufficient to inhibit polymerization of said monomer of a compound or mixture of compounds of formula (I) R－X－Ar1－NH－Ar2－Y－H (I) wherein Ar1 and Ar2 are, independently, substituted or unsubstituted phenylene, naphthylene, anthrylene or phenanthrylene, X and Y, independently, are －NH－, －S－or －O－, R is hydrogen; substituted or unsubstituted C1-10 alkyl; substituted or unsubstituted C5-10 cycloalkyl; substituted or unsubstituted phenyl, naphthyl, anthryl or phenanthryl; substituted or unsubstituted phenyl C1-10 alkyl or naphthyl C1-10 alkyl; or substituted or unsubstituted phenyl C5-10 cycloalkyl or naphthyl C5-10 cycloalkyl; and any substituent on Ar1, Ar2 or R is C1-10 alkyl, phenyl, naphthyl, phenyl C1-10 alkyl, naphthyl C1-10 alkyl, C1-10 alkoxy, hydroxy, C1-10 alkylamino, amino, thiol, C1-10 alkylthio, C5-10 cycloalkyl, C5-10 cycloalkyloxy or C5-10 cycloalkylamino.