GB466346A - Improvements in the manufacture and production of nitrogenous products - Google Patents

Abstract

Assistants useful in the textile, leather, lacquer, rubber, pharmaceutical and cosmetic industries are obtained when mono or polymeric 1 : 2-alkyleneimines are condensed with aldehydes or ketones. The condensation which may be carried out with the addition of other substances capable of condensation, e.g. urea, dimethylolurea, thiourea, phenols, cetylamine or octodecenylamine may be effected in the presence of solvents or diluents such as water, alcohol, ether, cyclohexanone, toluene, carbontetrachloride or chlorbenzene or of the following condensing agents; phosphoric acid phosphorus pentoxide, aluminium chloride, zinc chloride, boron fluoride, alkaline or surface active condensing agents. Acyl, sulphonic, sulphuric ester, carboxylic or phosphoric acid groups may be introduced into the products or the reacting components. The products may be added in dyeing, printing, washing, dressing, stripping, fulling, levelling, tanning, dispersing or wetting processes. They may also be used in softening and flotation agents and to increase the affinity of viscose and copper artificial silk for acid dyestuffs. They may be added to spinning solutions in the preparation of regenerated cellulose and copper artificial silk, and they render textiles creaseproof and slide-proof. Dispensing agents such as sulphuric esters of fatty alcohols and aliphatic sulphonic acids may be used with the products, which can also be used in the form of salts with mineral or organic, e.g. fatty acids. The condensation products may be produced directly on the fibre such as wool, cotton, cellulose acetate or viscose or copper artificial silk. In examples: (1) ethyleneimine (mono or polymeric) is condensed with formaldehyde, crotonaldehyde, oleic aldehyde, benzaldehyde acetone, benzophenone and cyclohexanone; (2) cotton or regenerated cellulose artificial silk is treated with a solution of polymerized ethyleneimine in carbontetrachloride and is then immersed in a formaldehyde bath; (3) butylethyleneimine is treated with acetaldehyde or benzaldehyde to give an artificial mass; (4) propylethyleneimine is condensed with aldol: Further specified imines are methylethyleneimine, a : b -butyleneimine, o - chlor - a : b - butyleneimine and dodecyleneimine. Specifications 466,344 and 466,345 are referred to.ALSO:Products which may be added to preparations used as dispersing agents are obtained when mono or polymeric 1 : 2-alkyleneimines are condensed with aldehydes or ketones. The condensation may be carried out with the addition of other substances capable of condensation, e.g. urea, dimethylolurea, thiourea, phenols, cetylamine, or octodecenylamine. Acyl, sulphonic, sulphuric ester, carboxylic or phosphoric acid groups may be introduced into the products or the reacting components. Dispersing agents such as sulphuric esters of fatty alcohols and aliphatic sulphonic acids may be used with the products, which can also be used in the form of salts with mineral or organic, e.g. fatty acids. In examples: (1) ethyleneimine (mono or polymeric) is condensed with formaldehyde, crotonaldehyde, oleicaldehyde, benzaldehyde, acetone, benzophenone and cyclohexanone; (2) butylethyleneimine is treated with acetaldehyde or benzaldehyde to give an artificial mass; (3) propylethyleneimine is condensed with aldol. Further specified imines are methylethyleneimine, a : b -butyleneimine, o -chlor-a : b -butyleneimine and dodecyleneimine. Specifications 466,344 and 466,345 are referred to.