N-Acyloyl-N-alkyl-alkylenediamines as dye levelers
AssigneeCassella Farbwerke Mainkur Aktiengesellschaft
InventorsChristian Heid, Karl-Heinz Keil, Joachim Ribka, Otto Trosken, Gerhard Weckler, Siegfried Wirth
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Abstract
N-Acyloyl-N'-alkyl-alkylenediamines of the formula ##STR1## are prepared by reacting N-alkyl alkylenediamines with a derivative of a di-carboxylic acid. The compounds and their salts are useful as levelling auxiliaries for the dyeing of polyacrylonitrile or polyester with basic dyestuffs. Advantageously, the compounds are employed in conjunction with a non-ionic dispersing agent, for example a polyethoxylated fatty alcohol, and a solvent to give an electrolyte-insensitive dye bath.
Claims5
A composition comprising (a) 40 to 60% by weight of a levelling auxiliary selected from the group consisting of N-acyloyl-N'-alkyl-alkylenediamines of the formula ##STR30## and the salts thereof wherein R is selected from the group consisting of --CH.sub.2 CH.sub.2 --;
- --CH.sub.2 CH.sub.2 CH.sub.2 --;
- --CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.2 --;
- --CH=CH--;
- ##STR31## wherein R.sup.3 is H or CH.sub.3, ##STR32## wherein R.sup.4, R.sup.5, R.sup.6 and R.sup.7 are each hydrogen or alkyl having 1 to 6 carbon atoms;
- ##STR33## wherein R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8 and R.sup.9 are each hydrogen or alkyl having 1 to 6 carbon atoms and ##STR34## wherein R.sup.4 to R.sup.11 are hydrogen or alkyl having 1 to 6 carbon atoms;
- R.sup.1 is hydrogen or alkyl having 8 to 12 carbon atoms;
- R.sup.2 has from 8 to 22 carbon atoms and is alkyl, alkyloxyalkyl, alkylthioalkyl or alkylaminoalkyl and n is an integer from 2 to 6 inclusive;
- (b) 1 to 10% by weight of a non-ionic dispersing agent and (c) a balance to 100% of a solvent.
The composition of claim 17 wherein the levelling auxiliary is present in an amount of about 50% by weight and the non-ionic dispersing agent is present in an amount of from 1 to 5% by weight.
Dependencies are inferred from the claim text.