Patent GB-913521-A (GB)
Title: Textile treatment and products therefor
Inventor: EARNSHAW JOHN
IPC: D06M13/405
Filed: 1960-01-28
Abstract: A product used as an intermediate in the anti-static treatment of textiles is prepared by reacting a N-(carboxyalkyl)-, N-(aminocarbonylalkyl)-, N-(cyanoalkyl)- or N-(carbalkoxyalkyl) substituted aliphatic polyamine (AB) with a halide of an ethylene oxide condensate (C), this product (ABC) being modified on the textile by reaction with a salt containing bromide or iodide ions or with a bromide or iodide of an ethylene oxide condensate (D) which may be the same as or different from (C).  The halides (C) and (D) contain at least 2 halogen atoms and are prepared by replacing the hydroxy groups of ethylene oxide condensates with halogen atoms. Suitable condensates are polyoxyethylene glycols, and ethylene oxide condensates of polyhydric alcohols, e.g. glycerol, pentaerythritol or sorbitol, and of amines, e.g. ethylamine, dodecylamine, cetylamine, and of amides.  Their average molecular weight is from 200 to 1,500. Chlorine or bromine is introduced by reaction with thionyl chloride or bromide, and the iodides are best prepared by reacting the chloride with sodium iodide in acetone.  The substituted polyamines are prepared from amines such as ethylene diamine, diethylene triamine, tetraethylene pentamine and bis hexamethylene triamine, by reaction with the appropriate ethenoid carboxylic acid, amide, ester or nitrile, or with formaldehyde and hydrocyanic acid.  The carboxyl groups may be neutralized with a mild alkali prior to reaction with the halide (C).  This reaction is preferably effected at elevated temperature in a solvent.  The products (ABC) are water-soluble and are applied to the textile from aqueous solution which may also contain the bromide or iodide.  The latter may alternatively be applied separately.  The total number of moles of (C) and (D) to the number of (AB) should lie between 1:5 and 5:1, and the number of (D) should not be more than twice the number of (C).  Suitable bromides or iodides are those of the alkali metals.  The textile is finally dried and baked, e.g. at temperatures of 130 DEG -210 DEG C.ALSO:An anti-static treatment for textiles comprises applying thereto the product (ABC) obtained by reacting a N-(cyanoalkyl)-, N-(carboxyalkyl)-, N-(aminocarbonylalkyl)-, or N-(carbalkoxyalkyl) substituted aliphatic polyamine (AB) with a halide of an ethylene oxide condensate (C), and reacting on the textile with a salt containing bromide or iodide ions or with a bromide or iodide of an ethylene oxide condensate (D), which may be the same as or different from (C).  The halides (C) and (D) contain at least 2 halogen atoms and are prepared by replacing the hydroxy groups of ethylene oxide condensates with halogen atoms.  Suitable condensates are polyoxyethylene glycols, and ethylene oxide condensates of polyhydric alcohols, e.g., glycerol, pentaerythritol or sorbitol, and of amines, e.g., ethylamine, dodecylamine or cetylamine, and of amides.  Their average molecular weight is from 200 to 1500.  The substituted polyamines are prepared from amines such as ethylene diamine, diethylene triamine, tetraethylene pentamine and bis-hexamethylene triamine, by reaction with the appropriate ethenoid carboxylic acid, amide, ester or nitrile, or with formaldehyde and hydrocyanic acid. The carboxyl groups may be neutralised with a mild alkali prior to reaction with the halide (C).  The products (ABC) are p water-soluble and are applied to the textile from aqueous solution, which may also contain the bromide or iodide.  The latter may also be applied separately.  Suitable bromides or iodides are those of the alkali metals.  The textile is finally dried and baked, e.g. at temperatures of 130 DEG  to 210 DEG C.  The amount applied is such that the textile increases in weight from about 0.1 to 5.0%. Specified textiles are those of polyamides, polyethylene terephthalate and polyacrylonitrile.