2-Hydroxy-n-propylamine derivatives useful as surface active agents
AssigneeSandoz Ltd.
InventorWerner Amati
Life of this patent
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Abstract
2-Hydroxy-n-propylamines of formula, ##STR1## in which R is a mono- or dialkylphenolpoly-(C.sub.2-3)-alkyleneglycolether group bound through an oxygen atom and containing at least 8 (C.sub.2-3)alkyleneoxy units of which at least 50% are ethyleneoxy, R.sub.1 is hydrogen or alkyl, optionally substituted with hydroxyl or X, R.sub.2 is alkylene, optionally substituted with hydroxyl, and X is an acid group, the compounds being in free acid or salt form, are useful as surface active agents, especially for use as dispersing or emulsifying agents in textile lubricant and fat liquor emulsions, and as agents for the degreasing of pelts and leathers, as tanning auxiliary agents and for the desizing of textile materials.
Claims13
A compound or mixture of compounds of the formula, ##STR19## in which R is a mono- or dialkylphenolpoly(C.sub.2-3)-alkyleneglycolether group bound through an oxygen atom;
- R.sub.1 is hydrogen;
- unsubstituted alkyl;
- alkyl monosubstituted by hydroxy;
- alkyl monosubstituted by sulfo;
- alkyl monosubstituted by carboxy;
- alkyl monosubstituted by hydroxy and monosubstituted by sulfo;
- or alkyl monosubstituted by hydroxy and monosubstituted by carboxy;
- R.sub.2 is unsubstituted alkylene or alkylene monosubstituted by hydroxy;
- and
- X is sulfo or carboxy,
- with the provisos that R contains at least 8 (C.sub.2-3) alkyleneoxy units and that an average of at least 50% of the alkyleneoxy units in R are ethyleneoxy, each sulfo and carboxy group of said compound or mixture of compounds being in free acid or salt form.
Dependencies are inferred from the claim text.