Durable hydrophilic coating for textiles

Abstract

Low molecular weight silicone polyether ABA type block copolymer treatments wherein a linear polysiloxane is terminated at each end by a polyether moiety derived from ethylene oxide are useful to imparting a hydrophilic coating to the surface of either woven or non-woven textiles.

Having described the invention that which is claimed is:  
     
         1 . A polymeric fabric treated with a silicone compound selected from the group consisting of: 
 1) polysiloxane polyethers having the formula:                          where R 1  is selected from the group consisting of hydrogen and alkyls and R 2  and R 3  are each independently selected from the group consisting of one to forty carbon atom monovalent hydrocarbon radicals; the subscript a ranges from about 1 to about 8; the subscript b ranges from about 1 to about 10; the subscript c ranges from zero to 2; the subscript d ranges from about to 1 to about 10; and the number average molecular weight ranging from ranges from about to 300 to about 1,000.    2) polysiloxane polyethers having the formula:                          where R 1  is selected from the group consisting of hydrogen and alkyls and R 2  and R 3  are each independently selected from the group consisting of one to forty carbon atom monovalent hydrocarbon radicals; the subscript a ranges from about to 1 to about 8; the subscript b ranges from about 1 to about 10; the subscript c ranges from zero to 2; the subscript d ranges from about to 1 to about 10; and the number average molecular weight ranging from ranges from about to 300 to about 1,000;    3) polysiloxane polyethers having the formula:                          where R 1  is selected from the group consisting of hydrogen and alkyls and R 2  and R 3  are each independently selected from the group consisting of one to forty carbon atom monovalent hydrocarbon radicals; the subscript a ranges from about to 1 to about 8; the subscript b ranges from about 1 to about 10; the subscript c ranges from zero to 2; the subscript d ranges from about to 1 to about 10; the subscript e ranges from about to 1 to about 10; and the number average molecular weight ranging from ranges from about to 300 to about 1,000; and    4) mixtures thereof    whereby said fabric is rendered durably hydrophilic.    
     
     
         2 . The silicone compound of  claim 1  wherein said silicone is:  
       
         
           
           
               
               
           
         
       
     
     
         3 . The treatment silicone compound of  claim 1  wherein said silicone is:  
       
         
           
           
               
               
           
         
       
     
     
         4 . The silicone compound of  claim 1  wherein said silicone is:  
       
         
           
           
               
               
           
         
       
     
     
         5 . A polymeric fabric wherein said fabric has been treated with the treatment silicone of  claim 1 .  
     
     
         6 . A polymeric fabric wherein said fabric has been treated with the treatment silicone of  claim 2 .  
     
     
         7 . A polymeric fabric wherein said fabric has been treated with the treatment silicone of  claim 3 .  
     
     
         8 . A polymeric fabric wherein said fabric has been treated with the treatment silicone of  claim 4 .  
     
     
         9 . The polymeric fabric of  claim 5  comprising a polymer wherein said polymer is selected from the group consisting of: 
 alkyd resins, ophthalmic anhydride-glycerol resins, maleic acid-glycerol resins, adipic acid-glycerol resins, phthalic anhydride-pentaerythritol resins; allylic resins cross-linked by diallyl phthalate, diallyl isophthalate diallyl maleate, or diallyl chlorendate; aniline-formaldehyde resins, ethylene urea-formaldehyde resins, dicyandiamide-formaldehyde resins, melamine-formaldehyde resins, sulfonamide-formaldehyde resins, and urea-formaldehyde resins; epoxy resins, epichlorohydrin-bisphenol A resins; phenolic resins, phenol-formaldehyde resins, end-capped polyacetals, poly(oxymethylene), polyformaldehyde, poly(trichloroacetaldehyde), poly(n-valeraldehyde), poly(acetaldehyde), poly(propionaldehyde), acrylic polymers, polyacrylamide, poly(acrylic acid), poly(methacrylic acid), poly(ethyl acrylate), poly(methyl methacrylate), fluorocarbon polymers, poly(tetrafluoroethylene), perfluorinated ethylene-propylene copolymers, ethylene-tetrafluoroethylene copolymers, poly(chlorotrifluoroethylene), ethylene-chlorotrifluoroethylene copolymers, poly(vinylidene fluoride), poly(vinyl fluoride), polyamides, such as poly(6-aminocaproic acid) or poly(epsilon-caprolactam), poly(hexamethylene adipamide), poly(hexamethylene sebacamide), poly(11-amino-undecanoic acid), polyaramides, poly(imino-1,3-phenyleneiminoisophthaloyl) or poly(m-phenylene isophthalamide), parylenes, poly-p-xylylene, poly(chloro-p-xylylene), polyaryl ethers, poly(oxy-2,6-dimethyl-1,4-phenylene), poly(p-phenylene oxide), polyaryl sulfones, poly(oxy-1,4-phenylenesulfonyl-1,4-phenyleneoxy-1,4-phenylene-isopropylidene-1,4-phenylene), poly(sulfonyl-1,4-phenyleneoxyl,4-phenylenesulfonyl-4,4′-biphenylene), polycarbonates, poly(bisphenolA)orpoly(carbonyldioxy-1,4-phenyleneisopropylidene-1,4-phenylene), polyesters, poly(ethylene terephthalate), poly(tetramethylene terephthalate), poly(cyclohexylene-1,4-dimethylene terephthalate), poly(oxymethylene-1,4-cyclohexylenemethyleneoxyterephthaloyl), polyaryl sulfides, poly(p-phenylene sulfide), poly(thio-1,4-phenylene), polyimides, poly(pyromellitimido-1,4-phenylene), polyolefins, polyethylene, polypropylene, poly(1-butene), poly(2-butene), poly(1-pentene), poly(2-pentene), poly(3-methyl-1-pentene), poly(4-methyl-1-pentene), 1,2-poly-1,3-butadiene, 1,4-poly-1,3-butadiene, polyisoprene, polychloroprene, polyacrylonitrile, poly(vinyl acetate), poly(vinylidene chloride), polystyrene, copolymers of the foregoing, acrylonitrile-butadiene-styrene (ABS) copolymers, and mixtures thereof.  
 
     
     
         10 . The polymeric fabric of  claim 5  comprising a polymer wherein said polymer is a natural polymer selected from the group consisting of cotton, silk, wool, and cellulose.  
     
     
         11 . The polymeric fabric of  claim 9  wherein said polymer is selected from the group consisting of polyethylene, polypropylene, poly(1-butene), poly(2-butene), poly(1-pentene), poly(2-pentene), poly(3-methyl-1-pentene), poly(4-methyl-1-pentene), 1,2-poly-1,3-butadiene, 1,4-poly-1,3-butadiene, polyisoprene, polychloroprene, polyacrylonitrile, poly(vinyl acetate), poly(vinylidene chloride), polystyrene, copolymers of the foregoing, acrylonitrile-butadiene-styrene (ABS) copolymers, and mixtures thereof.  
     
     
         12 . The polymeric fabric of  claim 11  wherein said polymer is selected from the group consisting of polyethylene and polypropylene.  
     
     
         13 . The polymeric fabric of  claim 12  wherein said polymer is polyethylene.  
     
     
         14 . The polymeric fabric of  claim 13  wherein said polymer is polypropylene.  
     
     
         15 . The polymeric fabric of  claim 10  wherein said polymer is cellulose.  
     
     
         16 . The polymeric fabric of  claim 15  wherein said cellulose is paper.