Patent GB-1025433-A (GB)
Title: Aqueous compositions of salts of n,n-disubstituted semi-amides of di- or tri-carboxylic acids
IPC: D06M13/402
Filed: 1964-04-02
Abstract: A composition which may be used in the form of an aqueous solution, dispersion or paste for treating leather comprises (a) a salt of an N, N-disubstituted semi-amide of a di- or tri-carboxylic acid and (b) 0.02-0.4 mol per mol of the semi-amide salt of a condensation product of 5-80 mols of ethylene oxide with 1 mol of an alkyl phenol. The semi-amide salts may have the formula <FORM:1025433/C6-C7/1> in which A is an aliphatic, cycloaliphatic or aromatic divalent or trivalent hydrocarbon residue containing at most 8 carbon atoms, M is an alkali metal atom, R and R1 are R11-, R11-CONH-R111-or <FORM:1025433/C6-C7/2> in which R11 is an aliphatic hydrocarbon residue containing 11-23 carbon atoms and R111 is a divalent residue containing 2 or 3 carbon atoms, and n is 1 or 2. Suitable alkyl phenols which may be reacted with the ethylene oxide are those having the formula <FORM:1025433/C6-C7/3> in which X is a straight or branched alkyl or cyclo-alkyl radical containing 1-12 carbon atoms and s is 1, 2 or 3.  Prior to making up into the treating solutions, dispersions or pastes with soft or hard water the composition may be in the form of a powder obtained by spray-drying aqueous solutions of the composition.  The treating compositions may also contain water-soluble condensation products of urea or melamine with formaldehyde.ALSO:Semi-amide salts having the formula <FORM:1025433/C2/1> in which A is an aliphatic, cycloaliphatic or aromatic divalent or trivalent hydrocarbon residue containing at most 8 carbon atoms, M is an alkali metal atom, R and R1 each represents an identical or different residue of the formula <FORM:1025433/C2/2> in which R11 is an aliphatic hydrocarbon residue containing 11-23 carbon atoms and R111 is a divalent residue containing 2 or 3 carbon atoms, and n = 1 or 2, are prepared by the reaction of a di- or tri-carboxylic acid having the hydrocarbon residue A, e.g. oxalic, succinic, malonic, adipic, sebacic, maleic, phthalic, tetrahydrophthalic, hexahydrophthalic, terephthalic and trimellitic acid, or the corresponding anhydrides, with appropriate amounts of a secondary amine which may be a dialkylamine of the formula R11-NH-R11, a monoamidoalkyl-monoalkylamine of the formula R11-NH-R111-NHCO-R11, a diamido-dialkylamine of the formula R11-CONH-R111-NH-R111-NHCO-R11 or a diamidoalkyl-monoalkylamine of the <FORM:1025433/C2/3> in which R11 is an aliphatic hydrocarbon residue containing 11-23 carbon atoms, e.g. C11H23, C12H25, C15H31, C17H35 or C21H43, and R111 is a divalent residue having 2 or 3 carbon atoms, and converting the semi-amides thus produced into the alkali metal salts by reaction with an alcoholic alkali metal hydroxide solution.ALSO:A composition which may be used in the form of an aqueous solution, dispersion or paste for softening textiles, in the dyeing of cotton textile materials with direct dyestuffs and for treating paper comprises (a) a salt of an N, N-disubstituted semi-amide of a di- or tri-carboxylic acid and (b) 0.02-0.4 mol per mol of the semi-amide salt of a condensation product of 5-80 mols of ethylene oxide with 1 mol of an alkyl phenol.  The semiamide salts may have the formula <FORM:1025433/D1-D2/1> in which A is an aliphatic, cycloaliphatic or aromatic divalent or trivalent hydrocarbon residue containing at most 8 carbon atoms, M is an alkali metal atom, R and R1 are R11-, R11-CONH-R111-or <FORM:1025433/D1-D2/2> in which R11 is an aliphatic hydrocarbon residue containing 11-23 carbon atoms and R111 is a divalent residue containing 2 or 3 carbon atoms, and n is 1 or 2.  Suitable alkyl phenols which may be reacted with the ethylene oxide are those having the formulae <FORM:1025433/D1-D2/3> in which X is a straight or branched alkyl or cycloalkyl radical containing 1-12 carbon atoms and s is 1, 2 or 3.  Textile materials made from cotton, wool, viscose rayon, cellulose-2 1/2 -acetate, cellulose triacetate, polyamide, polyester or polyacrylonitrile fibres may be treated.  Prior to making up into the treating solutions, dispersions or pastes with soft or hard water the composition may be in the form of a powder obtained by spray-drying aqueous solutions of the composition. The treating compositions may also contain water-soluble condensation products of urea or melamine with formaldehyde.