GB914152A - New condensation products and process of preparing them - Google Patents

Abstract

In a process for improving textile fibrous material, a polyoxyethylene compound containing at least 2 terminal primary amino groups (a) is reacted on the material with a compound containing at least 2 epoxy groups (b), the proportions being such that the condensation product contains at least 50% of polymeric ethylene oxide. Suitable amino compounds (a) are polyethylene glycols in which at least 2 OH groups have been replaced by NH2 groups; hydroxyethylation products of ammonia, of polyhydric alcohols (e.g. triethanolamine, glycerine, butane-diol, trimethylol propane), or of polyvalent amines (e.g. diethylene triamine), having molecular weights of about 300 to 2,500, of which at least 2 terminal OH groups have been converted to NH2 groups; and reaction products of polyepoxides containing polyethylene glycol residues with ammonia or amines. Suitable polyepoxides (b) are glycidyl ethers of polyhydroxy compounds such as ethylene glycol, polyethylene glycol and the corresponding propylene and butylene glycols, glycerine, sorbitol, pentaerythritol, butene-diol, hexadecane-triol, polypropylene oxide, diphenylol-propanedihydroxy ethyl ether, xylylene alcohol, diphenylolpropane and -methane, and cyanuric acid, and butadiene dioxide. A soluble pre-condensate may first be formed before applying to the fibre together with the necessary amount of one of the reactants to effect cross-linking. The reaction components are preferably applied in aqueous solutions, but may be applied separately or together in solution or dispersion in an organic solvent with or without water. Examples of organic solvents are dioxane, benzene, chlorobenzene and chlorinated hydrocarbons of 1-3 carbon atoms. Hardening is effected at temperatures of from 40 DEG to 160 DEG C. Other components such as aldehydes, aminoplast pre-condensates and softeners, fillers &c., may be incorporated. In the Examples, (1) o ,o 1-diamino-polyethylene glycol, prepared by reacting the bis-benzene-sulphonic acid ester of the glycol (mol. weight= 1,000) with ammonia, is reacted with glycerine diglycidyl ether; (2) triglycidyl cyanurate and the glycidyl ether of 4,41-diphenylol propane respectively are reacted with a similar diaminoglycol (mol. weight=1,500); (3) polyethylene glycol-di-(3-amino-2-hydroxypropyl) ether, prepared from bis-glycidyl ether of polyethylene glycol (600) and NH3, is reacted with a mixture of glycerine di- and tri-glycidyl ether.ALSO:In a process for improving the anti-static and pigment fixation properties of textile fibrous material, a polyoxyethylene compound containing at least 2 terminal primary amino groups (a), is reacted on the material with a compound containing at least 2 epoxy groups, (b), the proportions being such that the condensation product contains at least 50% of polymeric ethylene oxide. Suitable amino compounds (a) are polyethylene glycols in which at least 2 OH groups have been replaced by NH2 groups; hydroxyethylation products of ammonia, of polyhydric alcohols (e.g. triethanolamine, glycerine, butane-diol, trimethylol propane), or of polyvalent amines (e.g. diethylene triamine), having molecular weights of about 300 to 2,500, of which at least 2 terminal OH groups have been converted to NH2 groups; and reaction products or polyepoxides containing poly-ethylene glycol residues with ammonia or amines. Suitable polyepoxides (b) are glycidyl ethers of polyhydroxy compounds such as ethylene glycol, polyethylene glycol and the corresponding propylene and butylene glycols, glycerine, sorbitol, pentaerythitol, butanediol, hexadecane-triol, polypropylene oxide, diphenylol-propane-dihydroxyethyl ether, xylylene alcohol, diphenylol-propane and -methane, and cyanuric acid, and butadiene dioxide. A soluble pre-condensate may first be formed before applying to the fibre together with the necessary amount of one of the reactants to effect cross-linking. The reaction components are preferably applied in aqueous solution, but may be applied separately or together in solution or dispersion in an organic solvent with or without water. Examples of organic solvents are dioxane, benzene, chlorobenzene or chlorinated hydro-carbons of 1-3 carbon atoms. Hardening is effected at temperatures of from 40 DEG to 160 DEG C. Other components such as aldehydes, aminoplast pre-condensates and softeners, and fillers may be incorporated. Specified textile fibres are those of polyethylene glycol terephthalate and polycaprolactam.