Patent GB-795771-A (GB)
Title: Improvements in or relating to the production of regenerated cellulose
IPC: C08B16/00
Filed: 1956-01-19
Abstract: Compounds of the general formula R-NA-(CzH2zNA)x-1CzH2zNA2, in which R represents an aliphatic or cyclic hydrocarbon radical having at least 6 carbon atoms, A represents hydrogen or a glycol or polyglycol residue of the formula -(CnH2nO)y-1CnH2nOH, x and y are integers of 1 or more and n and z are integers of 2 or more, at least one A being a glycol or polyglycol residue, are prepared by condensing a polyamine with a compound containing the radical R linked to a reactive atom or group, such as a halogen, followed by reaction with an alkylene oxide.  The products may be quaternised or reacted with formaldehyde or acetic anhydride.  In examples: (1) dodecyl chloride is condensed with tetraethylene pentamine and the product is condensed with ethylene oxide; (2) keryl chloride is condensed with diethylene triamine and the product is condensed with ethylene oxide; (3) cocofat chloride is condensed with ethylene diamine and the product is condensed with ethylene oxide; (4) dodecyl chloride is condensed with polyethylene polyamines obtained as a distillation residue after distilling off diethylene triamine and triethylene tetramine from a polyethylene polyamine mixture obtained by reaction of ethylene dichloride and ammonia; the resultant product is then condensed with ethylene oxide; (5) keryl phenyl chloride is condensed with polyamines prepared in accordance with Example (4), before condensation with ethylene oxide; (6) octadecyl chloride is condensed with dipropylene triamine and the product is reacted in turn with ethylene oxide and acetic anhydride; (7) dodecyl tetraethylene pentamine prepared according to Example (1) is condensed with propylene oxide; (8) 9 : 10-octadecenyl chloride is reacted with triethylene tetramine after which the product is condensed with ethylene oxide and then quaternized with dimethyl sulphate.  The products are useful in the manufacture of regenerated cellulose (see Group IV (a)).ALSO:Compounds of the formula R-NA-(CzH2z NA)x-1CzH2zNA2, in which R represents an aliphatic or cyclic hydrocarbon radical having at least 6 carbon atoms, A represents hydrogen or a glycol or a polyglycol residue of formula -(CnH2nO)y-1CnH2nOH, x and y are integers of 1 or more and n and z are integers of two or more, at least one A being a glycol or a polyglycol residue, and acetic anhydride, formaldehyde or quaternary salt derivatives thereof are used as additives at any stage, including a finishing stage, in the production of regenerated cellulose.  In Example (1) octadecyl dipropylene triamine is reacted in turn with ethylene oxide and acetic anhydride and the product is used to soften rayon fibre; (2) dodecyl tetraethylene pentamine is condensed with propylene oxide and the product is similarly used for softening rayon staple fibre.ALSO:A compound of the general formula <FORM:0795771/IV (a)/1> in which R represents an aliphatic or cyclic hydrocarbon radical having at least 6 carbon atoms, A represents hydrogen or a glycol or polyglycol residue of formula -(CnH2nO)y-1CnH2yOH, x and y are integers of 1 or more, and n and z are integers of 2 or more, at least one A being a glycol or polyglycol residue, or a quaternary salt or a formaldehyde, or acetic anhydride condensation product of a compound of said formula, is added at any stage, including a finishing stage, in the production of regenerated cellulose.  The radical R may be an aliphatic straight-chain or branched-chain, saturated or unsaturated hydrocarbon grouping, e.g. ethyl hexyl, dodecyl, hexadecyl, octadecenyl or octadecyl, or an aryl, alkylaryl or aralkyl group, e.g. a residue of dodecylbenzene, octadecyl benzene or nonylnaphthalene.  In examples, dodecyl chloride, keryl chloride, cocofat chloride, keryl phenyl chloride, octadecyl chloride and 9:10-octadecenyl chloride are reacted with ethylene diamine, diethylene triamine, triethylene tetramine, tetraethylene pentamine or dipropylene triamine, followed by condensation with an alkylene oxide.  The resultant products may be added to viscose or to the spinning bath in small quantities or used to soften filaments or staple fibres in finishing treatments.  They may also be incorporated into the cellulosic starting material.