Flashpointless textile treatment composition, preparation thereof and use thereof

Abstract

Disclosed are a flashpointless textile treatment composition, a process for preparing it, its use for treating textile materials and also the treated textile materials.

What is claimed is:  
     
         1 . Flashpointless textile auxiliaries containing aqueous colloidal suspensions of organosilasesquioxanes containing units of the general formula (I)  
       R 1 Si(O) 3/2   (I)  where each 
 R 1  is the same or different and represents a straight-chain or branched C 1 -C 18 -alkyl radical which is optionally substituted by one or more identical or different halogen radicals, —NH 2 , —SH or epoxy groups and/or in which one or more (CH) 2  groups is optionally replaced by —O—, —S— or —N(H)—.  
   
     
     
         2 . Flashpointless textile auxiliaries according to  claim 1 , containing not more than 2.5% by weight, each percentage being based on the total textile auxiliary, of an alcohol of the formula R 2 OH, where R 2  represents a straight-chain or branched C 1 -C 4 -alkyl radical.  
     
     
         3 . Flashpointless textile auxiliaries according to  claim 2  containing not more than 2.2% by weight, each percentage being based on the total textile auxiliary, of an alcohol of the formula R 2  OH, where R 2  represents a straight-chain or branched C 1 -C 4 -alkyl radical.  
     
     
         4 . Flashpointless textiles according to  claim 3  containing not more than 2% by weight, each percentage being based on the total textile auxiliary, of an alcohol of the formula R 2 OH, where R 2  represents a straight-chain or branched C 1 -C 4 -alkyl radical.  
     
     
         5 . Flashpointless textile auxiliaries according to  claim 1  wherein each R 1  is the same or different and represents a straight-chain or branched C 1 -C 7 -alkyl radical which is optionally substituted by one or more identical or different halogen radicals, NH 2 , —SH or epoxy groups and/or in which one or more (CH) 2  groups is optionally replaced by —O—, —S— or —N(H)—.  
     
     
         6 . Flashpointless textile auxiliaries according to  claim 5  wherein halogen radicals is F, Cl or Br radicals.  
     
     
         7 . Flashpointless textile auxiliaries according to  claim 1 , wherein the organosilasesquioxanes contain units of the formula R 1 Si(O) 3/2  where R 1  has different meanings subject to the proviso that up to 95 mol % of all of the R1 radicals are methyl.  
     
     
         8 . Flashpointless textile auxiliaries according to  claim 1 , wherein the organosilasesquioxanes contain units of the formula R 1 Si(O) 3/2  where R 1  has different meanings subject to the proviso that up 50-94 mol % of all of the R 4  are methyl.  
     
     
         9 . Flashpointless textile auxiliaries according to  claim 1 , wherein the organosilasesquioxanes contain units of the formula R 1 Si(O) 3/2  where R 1  has different meanings subject to the proviso that up to 80-94 mol % of all of the R 4  are methyl.  
     
     
         10 . Flashpointless textile auxiliaries according to  claim 1  wherein the substituents on the R 1  radical are epoxy groups of the formula (II)  
       
         
           
           
               
               
           
         
       
       where 
 n is an integer from 1 to 18 and preferably from 1 to 7,  
 and one or more of the alkylene groups —(CH 2 )— is optionally replaced by —O—, —S— or —N(H)—.  
 
     
     
         11 . Flashpointless textile auxiliaries according to  claim 10 , wherein the epoxy groups are groups of the formulae (III) or (IV)  
       
         
           
           
               
               
           
         
       
       where 
 x is O, S or NH.  
 
     
     
         12 . Flashpointless textile auxiliaries according to  claim 1 , wherein R 1  is methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, tert-butyl, n-pentyl or 2-ethylbutyl.  
     
     
         13 . Flashpointless textile auxiliaries according to  claim 1 , wherein the organosilasesquioxanes have an average particle size of 100-1000 angstrom.  
     
     
         14 . Flashpointless textile auxiliaries according to  claim 13 , wherein the organosilasesquioxanes have an average particle size of 200-600 angstrom.  
     
     
         15 . Flashpointless textile auxiliaries according to  claim 1 , wherein the organosilasesquioxanes, as well as the units of the formula (I), contain silica units of the formula Si(O 4 ) 2 .  
     
     
         16 . Flashpointless textile auxiliary according to  claim 1 , having the following composition: 
 0.01-3% by weight of at least one surface-active agent,    0.05-4% by weight of a buffer substance,    2-9% by weight of the organosilasesquioxane,    0-0.4% by weight of silica,    0-2.5% by weight of an alcohol R 2 OH and    97.94-81.1% by weight of water,    all the components mentioned adding up to 100% by weight.    
     
     
         17 . Process for preparing the flashpointless textile auxiliaries according to  claim 1  comprising 
 (1) condensing one or more silanes of the general formula (V)  
 R 1 —Si(OR 2 ) 3   (V)  
  and optionally one or more silanes of the general formula (VI)  
 Si(OR 2 ) 4   (VI)  
  where each 
 R 1  is the same or different and represents a straight-chain or branched alkyl radical having 1 to 18 carbon atoms which optionally is substituted by one or more identical or different halogen radicals, —NH 2 , —SH or epoxy groups and/or in which one or more (CH) 2  groups are optionally replaced by —O—, —S— or N(H)— and each  
 R 2  is the same or different and represents a straight-chain or branched C 1 -C 4 -alkyl radical,  
 
 in a mixture of water, a buffer substance and a surface-active substance, and  
 (2) distilling the reaction mixture of (1) at 55° C. to 100° C. under a pressure of 950 to 250 mbar and under an inert gas stream of 5 to 50 l/h.  
 
     
     
         18 . Process according to  claim 17 , wherein the silanes of the general formula (V) are methyltrimethoxysilane, methyltriethoxysilane, methyltriisopropoxysilane, ethyltrimethoxysilane, ethyltriethoxysilane, propyltrimethoxysilane, isobutyltrimethoxysilane, isobutyltriethoxysilane or 2-ethylbutyltriethoxysilane.  
     
     
         19 . Process according to  claim 17 , wherein the silane of the general formula (VI) is tetraethoxysilane.  
     
     
         20 . Process according to  claim 17 , wherein the surface-active substances used are cationic.  
     
     
         21 . Process according to  claim 20 , wherein the cationic surface-active substances are ammonium salts of alkylamines, quaternary ammonium salts, alkylpyridinium salts, imidazole salts, imidazolinium salts, salts of alkyldiamines and of alkylpolyamines, salts of acylated diamines and polyamines, salts of acylated alkanolamines, salts of esters and ethers of alkanolamines, alkanolamine ether salts, alkylethyleneurea salts, sulphonium compounds, phosphonium compounds or amine oxides  
     
     
         22 . Process according to  claim 17 , wherein the buffer substance used is sodium tetraborate, ammonium bicarbonate, sodium bicarbonate or potassium bicarbonate.  
     
     
         23 . Process according to  claim 17 , wherein the condensation in step (1) is carried out by adding the silanes of the general formula (V) and optionally (VI) to a mixture of water, buffer substance and surface-active substance.  
     
     
         24 . Process according to  claim 17 , wherein the distillation in step (2) is carried out at a temperature in the range from 60 to 80° C., under a pressure of 900 to 300 mbar and under a nitrogen stream of 5 to 50 l/h.  
     
     
         25 . Process according to  claim 24 , wherein the distillation in step (2) is carried out at a temperature in the range from 70 to 75° C., under a pressure of 900 to 300 mbar and under a nitrogen stream of 5 to 50 l/h.  
     
     
         26 . Process according to  claim 24 , wherein the distillation in step (2) is carried out at a temperature in the range from 70 to 75° C., under a pressure of 900 to 300 mbar and under a nitrogen stream of 20 to 40 l/h.  
     
     
         27 . Process according to  claim 17 , wherein the distillation is started immediately after completion of the addition of the silanes (V) and optionally (VI) to the mixture of water, buffer substance and surface-active substance.  
     
     
         28 . A process for preparing textile materials comprising finishing the materials with the flashpointless textile auxiliary according to  claim 1 .  
     
     
         29 . Textile material finished with a flashpointless textile auxiliary according to  claim 28.