Stabilized aqueous solutions of unsaturated quaternary ammonium

Details Stabilized aqueous solutions of unsaturated quaternary ammonium Stabilized aqueous solutions of unsaturated quaternary ammonium

1997-07-08

1999-06-15

Gerstl, Robert

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

Organic compounds

Carboxylic acid esters

560221, C07C23389

Patent

active

059123834

ABSTRACT:
A description is given of a stabilized aqueous solution of unsaturated quaternary ammonium salt(s) (I), having been obtained by reaction, in the presence of water, of N,N-dimethylaminoethyl (meth)acrylate (II) with a quaternizing agent (III), at least one stabilizing agent having been used in combination with the monomer (II). This aqueous solution contains at least one sequestering agent for metals chosen from diethylenetriaminepentaacetic acid, the pentasodium salt of diethylenetriaminepentaacetic acid, N-(hydroxyethyl)ethylenediaminetriacetic acid and the trisodium salt of N-(hydroxyethyl)ethylenediaminetriacetic acid. ##STR1## R.sup.1 =H or CH.sub.3 ; R=methyl or benzyl; X=Cl, Br or CH.sub.3 --SO.sub.4.

REFERENCES:
Chemical Abstracts, vol. 97, No. 20, Abstract No. 163659, Nov. 15, 1982, Columbus, OH (USA).
Database WPI, Section Ch, Wk. 9349, Abstract No. 93-392677, Nov. 9, 1993, Derwent Publications Ltd., London (GB).

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