Patent GB-930881-A (GB)
Title: Antistatic treatment of textiles
Inventor: BAIRD WILLIAM
IPC: D06M13/372
Filed: 1959-12-21
Abstract: A composition suitable for treating textiles comprises (1) a reaction product (ABC) obtained by condensing a polyalkylene polyamine (A) with up to 1 mole of an alkylene oxide (B) per nitrogen atom in the polyamine and reacting the condensate (AB), preferably in the presence of an acid-binding agent, with a halide of an ethylene oxide condensate (C) of average molecular weight within the range 200-1,500, and (2) a salt containing bromide or iodide ions when (ABC) contains unreacted chlorine atoms or a bromide or iodide of an ethylene oxide condensate (D), which may be the same as or different from the halide of the ethylene oxide condensate (C).  The halides of the ethylene oxide condensates (C) contain two or more halogen atoms and are obtained by replacing the hydroxyl groups of ethylene oxide condensates, e.g. polyethylene glycols and condensation products of ethylene oxide, with polyhydric alcohols such as glycerol, pentaerythritol or sorbitol, amines such as ethylamine, dodecylamine or cetylamine, or amides, with halogen atoms.  The molecular ratio of total polyethenoxy halide to polyamine/alkylene oxide condensate (AB) is 1:5 to 5:1, the molecular ratio of polyethenoxy halide (C) to polyamine/alkylene oxide condensate (AB) when a polyethenoxy bromide or iodide (D) is also used does not exceed 2:1 and the molecular ratio of polyethenoxy bromide or iodide (D) or the equivalent quantity of the salt containing bromide or iodide ions to the reaction product (ABC) is 0.2:1 to 3:1.  Suitable polyalkylene polyamines (A) are ethylene diamine, diethylene triamine, triethylene tetramine, tetraethylene pentamine and bishexamethylene triamine. The composition is preferably applied to the textile as an aqueous solution and the textile is then dried and baked at a temperature within the range 130 DEG -210 DEG C.ALSO:Textiles, e.g. polyamide, polyester and polyacrylontrile fibres, are rendered anti-static by treating them with (1) a reaction product (ABC) obtained by condensing a polyalkylene polyamine (A) with up to 1 mole of an alkylene oxide (B) per nitrogen atom in the polyamine and reacting the condensate (AB), preferably in the presence of an acid-binding agent, with a halide of an ethylene oxide condensate (C) of average molecular weight within the range 200-1500, and (2) a salt containing bromide or iodide ions when (ABC) contains unreacted chlorine atoms or with a bromide or iodide of an ethylene oxide condensate (D), which may be the same as or different from the halide of the ethylene oxide condensate (C), and then drying and baking them at a temperature within the range 130 DEG -210 DEG C.  The halides of the ethylene oxide condensates (C) contain two or more halogen atoms and are obtained by replacing the hydroxyl groups of ethylene oxide condensates, e.g. polyethylene glycols and condensation products of ethylene oxide with polyhydric alcohols such as glycerol, pentaerythritol or sorbitol, amines such as ethylamine, dodecylamine or cetylamine, or amides, with halogen atoms.  The molecular ratio of total polyethenoxy halide to poly amine/alkylene oxide condensate (AB) is 1:5 to 5:1, the molecular ratio of polyethenoxy halide (C) to polyamine/alkylene oxide condensate (AB) when a polyethenoxy bromide or iodide (D) is also applied it does not exceed 2:1 and the molecular ratio of polyethenoxy bromide or iodide (D) or the equivalent quantity of the salt containing bromide or iodide ions to reaction product (ABC) is 0.2:1 to 3:1.  Suitable polyalkylene polyamines (A) are ethylene diamine, diethylene triamine, triethylene tetramine, tetraethylene pentamine and bishexamethylene triamine. The reaction product (ABC) is preferably applied to the textile from an aqueous solution which also contains the salt containing bromide or iodide ions or the polyethenoxy bromide or iodide (D).