Quaternary N-(2,3-epoxyalkyl)-ammonium compounds
AssigneeBayer Aktiengesellschaft
InventorsRoland Gipp, Otto Berenstecher, Horst Renziehausen
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Abstract
Quaternary N-(2,3-epoxyalkyl)-ammonium compounds of the formula ##STR1## IN WHICH Y represents a sulphur atom, a CH.sub.2 group, a simple C-C bond or especially an oxygen atom, R.sub.1 represents a C.sub.1 -C.sub.4 -alkyl group, a C.sub.2 -C.sub.4 -alkyl group substituted by an OH group or preferably the methyl group, R.sub.2 represents hydrogen or methyl, X.sup.n(.sup.-) represents an anion and n represents 1, 2 or 3 Are used as fixing agents for substantive dyestuffs on cellulose fibre materials.
Claims10
In a process for dyeing cellulose fiber materials with substantive dyestuffs, the improvement comprising employing a quaternary N-(2,3-epoxyalkyl)-ammonium compound of the formula ##STR5## in which Y is an oxygen atom or sulphur atom, a --CH.sub.2 -- group or a direct bond,
- R.sub.1 is a C.sub.1 -C.sub.4 -alkyl group or a C.sub.2 -C.sub.4 -alkyl group unsubstituted or substituted by an OH group, R.sub.2 is hydrogen or methyl,
- X.sup.n(.sup.-) is an anion, and
- n is 1, 2 or 3
- as a fixing agent for the dyestuffs.
The process of claim 16, wherein
- R.sub.1 is methyl;
- and
- R.sub.2 is hydrogen.
Dependencies are inferred from the claim text.