Durable hydrophilic coating for textiles

• US 6,630,415 B2
• Filed: 11/29/2001
• Issued: 10/07/2003
• Est. Priority Date: 12/22/1997
• Status: Expired due to Fees

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Nye, Susan A., Phillips, Christine J.
• Primary Examiner(s): Moore, Margaret G.
• Application Number:
  US09/997,939
• Publication Number:
  US 20020061406A1
• Time in Patent Office: 677 Days
• Field of Search: 442/119, 556/445
• US Class Current: 442/119
• CPC Class Codes: C07F 7/0838 Compounds with one or more Si-O-Si sequences compounds with a ring containing only alternating Si and O atoms, i.e. cyclosilanes C07F7/21
• CPC Class Codes: C08G 77/46 containing polyether sequences
• CPC Class Codes: D06M 15/647 containing polyether sequences
• CPC Class Codes: D06M 2101/06 cellulosic
• CPC Class Codes: D06M 2101/12 Keratin fibres or silk
• CPC Class Codes: D06M 2101/18 Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
• CPC Class Codes: D06M 2200/00 Functionality of the treatment composition and/or properties imparted to the textile material
• CPC Class Codes: D21H 19/32 obtained by reactions forming a linkage containing silicon in the main chain of the macromolecule
• CPC Class Codes: Y10T 428/31659 With cellulosic layer
• CPC Class Codes: Y10T 428/31663 As siloxane, silicone or silane
• CPC Class Codes: Y10T 442/2139 Coating or impregnation specified as porous or permeable to a specific substance [e.g., water vapor, air, etc.]
• CPC Class Codes: Y10T 442/2492 Polyether group containing

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.

Claims

1. A polymeric fabric treated with a silicone compound selected from the group consisting of:

1) polysiloxane polyethers having the formula;

 

where R¹ is selected from the group consisting of hydrogen and alkyls and R² and R³ are each independently selected from the group consisting of one to forty carbon atom monovalent alkyl 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,

whereby said fabric is rendered durably hydrophilic.

2. The polymeric fabric of claim 1 wherein said silicone is:

wherein the subscript d ranges from about 2 to about 8.

3. The polymeric fabric of claim 1 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, poly(6-aminocaproic acid), 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), 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-phenyleneoxy1,4-phenylensulfonyl-4,4′

biphenylene), polycarbonates, poly(bisphenolA) or poly(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.

4. The polymeric fabric of claim 3 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.

5. The polymeric fabric of claim 4 wherein said polymer is selected from the group consisting of polyethylene and polypropylene.

6. The polymeric fabric of claim 5 wherein said polymer is polyethylene.

7. The polymeric fabric of claim 6 wherein said polymer is polypropylene.

8. The polymeric fabric of claim 1 comprising a polymer wherein said polymer is a natural polymer selected from the group consisting of cotton, silk, wool, and cellulose.

9. The polymeric fabric of claim 8 wherein said polymer is cellulose.

10. The polymeric fabric of claim 9 wherein said cellulose is paper.