US20040018788A1 - Durable hydrophilic coating for textiles - Google Patents
Durable hydrophilic coating for textiles Download PDFInfo
- Publication number
- US20040018788A1 US20040018788A1 US10/620,791 US62079103A US2004018788A1 US 20040018788 A1 US20040018788 A1 US 20040018788A1 US 62079103 A US62079103 A US 62079103A US 2004018788 A1 US2004018788 A1 US 2004018788A1
- Authority
- US
- United States
- Prior art keywords
- poly
- ranges
- subscript
- fabric
- resins
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 238000000576 coating method Methods 0.000 title abstract description 18
- 239000011248 coating agent Substances 0.000 title abstract description 17
- 239000004753 textile Substances 0.000 title abstract description 13
- -1 polysiloxane Polymers 0.000 claims abstract description 168
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 42
- 238000011282 treatment Methods 0.000 claims abstract description 39
- 229920000570 polyether Polymers 0.000 claims abstract description 29
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 23
- 239000004744 fabric Substances 0.000 claims description 72
- 239000000203 mixture Substances 0.000 claims description 18
- 229920005989 resin Polymers 0.000 claims description 18
- 239000011347 resin Substances 0.000 claims description 18
- 150000001875 compounds Chemical class 0.000 claims description 15
- 229920000642 polymer Polymers 0.000 claims description 14
- 239000004743 Polypropylene Substances 0.000 claims description 10
- 229910052739 hydrogen Inorganic materials 0.000 claims description 10
- 239000001257 hydrogen Substances 0.000 claims description 10
- 229920001155 polypropylene Polymers 0.000 claims description 10
- 239000004215 Carbon black (E152) Substances 0.000 claims description 9
- 125000000217 alkyl group Chemical group 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 9
- 125000004432 carbon atom Chemical group C* 0.000 claims description 9
- 229920001577 copolymer Polymers 0.000 claims description 9
- 229930195733 hydrocarbon Natural products 0.000 claims description 9
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 9
- 239000004698 Polyethylene Substances 0.000 claims description 8
- 229920000573 polyethylene Polymers 0.000 claims description 8
- 229920002587 poly(1,3-butadiene) polymer Polymers 0.000 claims description 6
- 229920000098 polyolefin Polymers 0.000 claims description 6
- 229920006324 polyoxymethylene Polymers 0.000 claims description 6
- 229920000728 polyester Polymers 0.000 claims description 5
- 229920001807 Urea-formaldehyde Polymers 0.000 claims description 4
- 239000001913 cellulose Substances 0.000 claims description 4
- 229920002678 cellulose Polymers 0.000 claims description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N formaldehyde Substances O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 4
- 229920001568 phenolic resin Polymers 0.000 claims description 4
- 229920000052 poly(p-xylylene) Polymers 0.000 claims description 4
- 229920001748 polybutylene Polymers 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 3
- 239000004642 Polyimide Substances 0.000 claims description 3
- 239000004793 Polystyrene Substances 0.000 claims description 3
- 229920001328 Polyvinylidene chloride Polymers 0.000 claims description 3
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims description 3
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 3
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 229920001195 polyisoprene Polymers 0.000 claims description 3
- 229920000306 polymethylpentene Polymers 0.000 claims description 3
- 239000011116 polymethylpentene Substances 0.000 claims description 3
- 229920002223 polystyrene Polymers 0.000 claims description 3
- 239000011118 polyvinyl acetate Substances 0.000 claims description 3
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 3
- 210000002268 wool Anatomy 0.000 claims description 3
- VIAMIUDTTIDZCA-ODZAUARKSA-N (z)-but-2-enedioic acid;propane-1,2,3-triol Chemical compound OCC(O)CO.OC(=O)\C=C/C(O)=O VIAMIUDTTIDZCA-ODZAUARKSA-N 0.000 claims description 2
- ROLAGNYPWIVYTG-UHFFFAOYSA-N 1,2-bis(4-methoxyphenyl)ethanamine;hydrochloride Chemical compound Cl.C1=CC(OC)=CC=C1CC(N)C1=CC=C(OC)C=C1 ROLAGNYPWIVYTG-UHFFFAOYSA-N 0.000 claims description 2
- GQHYXXXFYXNSDV-UHFFFAOYSA-N 2-benzofuran-1,3-dione;2,2-bis(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)CO.C1=CC=C2C(=O)OC(=O)C2=C1 GQHYXXXFYXNSDV-UHFFFAOYSA-N 0.000 claims description 2
- 239000004641 Diallyl-phthalate Substances 0.000 claims description 2
- 229920001780 ECTFE Polymers 0.000 claims description 2
- 229920000877 Melamine resin Polymers 0.000 claims description 2
- 229920000305 Nylon 6,10 Polymers 0.000 claims description 2
- 229920002302 Nylon 6,6 Polymers 0.000 claims description 2
- 229920002125 Sokalan® Polymers 0.000 claims description 2
- 229920000180 alkyd Polymers 0.000 claims description 2
- 125000000746 allylic group Chemical group 0.000 claims description 2
- 229920003235 aromatic polyamide Polymers 0.000 claims description 2
- ZPOLOEWJWXZUSP-WAYWQWQTSA-N bis(prop-2-enyl) (z)-but-2-enedioate Chemical compound C=CCOC(=O)\C=C/C(=O)OCC=C ZPOLOEWJWXZUSP-WAYWQWQTSA-N 0.000 claims description 2
- CJKWEXMFQPNNTL-UHFFFAOYSA-N bis(prop-2-enyl) 1,2,3,4,7,7-hexachlorobicyclo[2.2.1]hept-2-ene-5,6-dicarboxylate Chemical compound C=CCOC(=O)C1C(C(=O)OCC=C)C2(Cl)C(Cl)=C(Cl)C1(Cl)C2(Cl)Cl CJKWEXMFQPNNTL-UHFFFAOYSA-N 0.000 claims description 2
- QUDWYFHPNIMBFC-UHFFFAOYSA-N bis(prop-2-enyl) benzene-1,2-dicarboxylate Chemical compound C=CCOC(=O)C1=CC=CC=C1C(=O)OCC=C QUDWYFHPNIMBFC-UHFFFAOYSA-N 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 claims description 2
- PPBYBJMAAYETEG-UHFFFAOYSA-N ethene;formaldehyde;urea Chemical compound C=C.O=C.NC(N)=O PPBYBJMAAYETEG-UHFFFAOYSA-N 0.000 claims description 2
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 claims description 2
- 229920002313 fluoropolymer Polymers 0.000 claims description 2
- DYDNPESBYVVLBO-UHFFFAOYSA-N formanilide Chemical compound O=CNC1=CC=CC=C1 DYDNPESBYVVLBO-UHFFFAOYSA-N 0.000 claims description 2
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 claims description 2
- BQBUMJXDLQOOAJ-UHFFFAOYSA-N hexanedioic acid;propane-1,2,3-triol Chemical compound OCC(O)CO.OC(=O)CCCCC(O)=O BQBUMJXDLQOOAJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000005011 phenolic resin Substances 0.000 claims description 2
- 229920000933 poly (ε-caprolactam) Polymers 0.000 claims description 2
- 229920002863 poly(1,4-phenylene oxide) polymer Polymers 0.000 claims description 2
- 229920000090 poly(aryl ether) Polymers 0.000 claims description 2
- 229920002493 poly(chlorotrifluoroethylene) Polymers 0.000 claims description 2
- 229920000889 poly(m-phenylene isophthalamide) Polymers 0.000 claims description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 2
- 229920002401 polyacrylamide Polymers 0.000 claims description 2
- 229920000058 polyacrylate Polymers 0.000 claims description 2
- 239000004417 polycarbonate Substances 0.000 claims description 2
- 229920000515 polycarbonate Polymers 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 229920000120 polyethyl acrylate Polymers 0.000 claims description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 2
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 2
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 2
- 229920001955 polyphenylene ether Polymers 0.000 claims description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 2
- 229920000874 polytetramethylene terephthalate Polymers 0.000 claims description 2
- 229920002620 polyvinyl fluoride Polymers 0.000 claims description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 2
- 150000003457 sulfones Chemical class 0.000 claims description 2
- 150000003568 thioethers Chemical class 0.000 claims description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N glycerol Substances OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims 1
- 229920005615 natural polymer Polymers 0.000 claims 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 abstract description 6
- 229920001400 block copolymer Polymers 0.000 abstract description 2
- 0 [3*]C[3*] Chemical compound [3*]C[3*] 0.000 description 13
- 239000000463 material Substances 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 239000006185 dispersion Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 5
- 239000002250 absorbent Substances 0.000 description 5
- 230000002745 absorbent Effects 0.000 description 5
- 238000011278 co-treatment Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000009877 rendering Methods 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 125000004209 (C1-C8) alkyl group Chemical group 0.000 description 2
- 206010021639 Incontinence Diseases 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000008065 acid anhydrides Chemical class 0.000 description 2
- 230000001476 alcoholic effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000011221 initial treatment Methods 0.000 description 2
- 239000012815 thermoplastic material Substances 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- QLEITUFVKZSFRB-UHFFFAOYSA-N 2-benzofuran-1,3-dione;propane-1,2,3-triol Chemical compound OCC(O)CO.C1=CC=C2C(=O)OC(=O)C2=C1 QLEITUFVKZSFRB-UHFFFAOYSA-N 0.000 description 1
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 229920003180 amino resin Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009960 carding Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- SYJRVVFAAIUVDH-UHFFFAOYSA-N ipa isopropanol Chemical compound CC(C)O.CC(C)O SYJRVVFAAIUVDH-UHFFFAOYSA-N 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 125000000075 primary alcohol group Chemical group 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 150000003333 secondary alcohols Chemical class 0.000 description 1
- 239000004447 silicone coating Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-L succinate(2-) Chemical compound [O-]C(=O)CCC([O-])=O KDYFGRWQOYBRFD-UHFFFAOYSA-L 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000004758 synthetic textile Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004634 thermosetting polymer Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 150000003673 urethanes Chemical class 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
- D06M15/647—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain containing polyether sequences
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/0834—Compounds having one or more O-Si linkage
- C07F7/0838—Compounds with one or more Si-O-Si sequences
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/42—Block-or graft-polymers containing polysiloxane sequences
- C08G77/46—Block-or graft-polymers containing polysiloxane sequences containing polyether sequences
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/10—Animal fibres
- D06M2101/12—Keratin fibres or silk
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/24—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H19/32—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming a linkage containing silicon in the main chain of the macromolecule
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31652—Of asbestos
- Y10T428/31659—With cellulosic layer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31652—Of asbestos
- Y10T428/31663—As siloxane, silicone or silane
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
- Y10T442/2139—Coating or impregnation specified as porous or permeable to a specific substance [e.g., water vapor, air, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
- Y10T442/2484—Coating or impregnation is water absorbency-increasing or hydrophilicity-increasing or hydrophilicity-imparting
- Y10T442/2492—Polyether group containing
Definitions
- the present invention relates to low molecular weight silicone polyether ABA type block copolymers that are useful to imparting a hydrophilic coating to the surface of either woven or non-woven textiles.
- Textiles are made from a variety of materials both natural and man made. Natural textiles include cotton, wool, silk, linen and the like while synthetic textiles are derived from various high polymers such as polyesters, polyamides, polyimides, and the various polyolefins, e.g. polyethylene, polypropylene, polybutylene. While polymers are used extensively to make a variety of products ranging from blown and cast films, extruded sheets, injection molded articles, foams, blow molded articles, extruded pipe, monofilaments and non-woven webs many of the polymers used for such materials are hydrophobic. In many cases this property is an advantage.
- polymers there are a number of uses to which polymers may be put where their hydrophobic nature either limits their usefulness or requires some modification. This is particularly true of polyolefins such as polyethylene and polypropylene which are used to manufacture polymeric fabrics which are used in disposable absorbent articles such as diapers, training pants, incontinence products, wipes, feminine care products and the like. These polymeric fabrics are typically non-woven webs prepared by meltblowing, coforming or spunbonding. For uses such as the foregoing these non-woven fabrics need to be wettable. Frequently wettability can be obtained by coating the fabric in some fashion with a treatment solution during or after formation of the fabric web and drying the web.
- topically applied treatments are nonionic treatments, for example polyethoxylated octylphenols and the condensation products of propylene oxide with propylene glycol. These types of treatments are effective in rendering normally hydrophobic polymeric fabrics wettable or hydrophilic. However, the treatment is readily removed from the fabric, often after only a single exposure to an aqueous liquid.
- a treatment mixture that includes a sorbitol succinate treatment and a co-wetting aid that can be a silicone polyether or a primary or secondary alcohol;
- R 1 and R 6 are selected from the group of hydrogen and C 1-8 alkyl and aryl
- R 2 , R 3 , R 4 and R 5 are selected from the group of C 1-8 alkyl and aryl
- the subscript a represents an integer ranging from about 8 to about 25
- the subscript b represents an integer ranging from about 8 to about 25
- the ratio of b to a is in a range of from about 0.7 to about 1.5
- the subscript c represents an integer from 1 to about 10
- the subscript d represents an integer of from about 40 to about 70 the ratio of d to two times the sum of a and b is in a range of from about 0.7 to about 1.5
- the number average molecular weight is preferably in a range of from about 5,000 to about 35,000, more preferably from about 6,500 to about 18,500 and most preferably about 7,000.
- the present invention provides for a treatment silicone compound selected from the group consisting of:
- 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.
- 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;
- 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
- Such treatment silicone compositions are useful for treating fabrics comprised of natural or synthetic polymeric materials to render the fabrics hydrophilic, i.e. capable of picking up and absorbing quantities of water.
- Such treatment silicone compositions are useful for treating cellulosic materials such as paper.
- polymeric fabric means a fabric prepared from any polymeric material capable of being formed into a fabric and includes fabric webs such as paper.
- fabric webs such as paper.
- such material can be synthetic or natural, although the former are more likely to be employed in the present invention.
- natural polymeric materials include, cotton, silk, wool, and cellulose, by way of illustration only.
- Synthetic polymeric materials in turn, can be either thermosetting or thermoplastic materials, with thermoplastic materials being more common.
- fabric means any textile, non-woven or woven, or any web such as paper or felt.
- thermosetting polymers include, by way of illustration only, alkyd resins, such as phthalic anhydride-glycerol resins, maleic acid-glycerol resins, adipic acid-glycerol resins, and phthalic anhydride-pentaerythritol resins; allylic resins, in which such monomers as diallyl phthalate, diallyl isophthalate diallyl maleate, and diallyl chlorendate serve as nonvolatile cross-linking agents in polyester compounds; amino resins, such as aniline-formaldehyde resins, ethylene urea-formaldehyde resins, dicyandiamide-formaldehyde resins, melamine-formaldehyde resins, sulfonamide-formaldehyde resins, and urea-formaldehyde resins; epoxy resins, such as cross-linked epichlorohydrin-bisphenol A resins; phenolic
- thermoplastic polymers include, by way of illustration only, end-capped polyacetals, such as poly(oxymethylene) or polyformaldehyde, poly(trichloroacetaldehyde), poly(n-valeraldehyde), poly(acetaldehyde), poly(propionaldehyde), and the like; acrylic polymers, such as polyacrylamide, poly(acrylic acid), poly(methacrylic acid), poly(ethyl acrylate), poly(methyl methacrylate), and the like; fluorocarbon polymers, such as poly(tetrafluoroethylene), perfluorinated ethylene-propylene copolymers, ethylene-tetrafluoroethylene copolymers, poly(chlorotrifluoroethylene), ethylene-chlorotrifluoroethylene copolymers, poly(vinylidene fluoride), poly(vinyl fluoride), and the like; polyamides, such as poly(6-aminocaproic acid) or
- the term “fabric” is used broadly herein to mean any fibrous material which has been formed into a sheet or web. That is, the fabric is composed, at least in part, of fibers of any length.
- the fabric can be a woven or nonwoven sheet or web, all of which are readily prepared by methods well-known to those having ordinary skill in the art.
- nonwoven webs are prepared by such processes as meltblowing, coforming, spunbonding, carding, air laying, and wet laying.
- the fabric can consist of a single layer or multiple layers.
- a multilayered fabric can include films, scrim, and other nonfibrous materials.
- the term “durable” means that the polymeric fabric to which a treatment has been applied can be subjected to the rigorous washing procedure described hereinafter or to multiple exposures to water and remain wettable.
- treatment is used herein to mean any active agent that is capable of durably rendering a polymeric fabric (i.e. a fabric either woven or non-woven made from a polymeric fiber) wettable.
- the treatment is a linear polysiloxane that is terminated at each end by a polyether moiety derived from ethylene oxide, commonly referred to as an A-B-A polymer.
- the treatment is a polysiloxane polyether having the general formula:
- 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, preferably from about to 1.5 to about 6, more preferably from about to 1.5 to about 5, and most preferably from about to 1.5 to about 4;
- the subscript b ranges from about 1 to about 10, preferably from about 1 to about 7, more preferably from about 1 to about 5, and most preferably from about to 1 to about 3;
- the subscript c ranges from zero to 2, more preferably from 1 to 2, and is most preferably 2;
- the subscript d ranges from about to 1 to about 10, preferably from about to 2 to about 8, more preferably from about to 2 to about 7, and most preferably from about to 3 to about 5; and the number average molecular weight ranging from ranges from about to 300 to about 1,000, preferably from about to 400 to about 900, more preferably from about to 500 to about 900,
- the treatment is a polysiloxane polyether having the general formula:
- 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, preferably from about to 1.5 to about 6, more preferably from about to 1.5 to about 5, and most preferably from about to 1.5 to about 4;
- the subscript b ranges from about 1 to about 10, preferably from about 1 to about 7, more preferably from about 1 to about 5, and most preferably from about to 1 to about 3;
- the subscript c ranges from zero to 2, more preferably from 1 to 2, and is most preferably 2;
- the subscript d ranges from about to 1 to about 10, preferably from about to 2 to about 8, more preferably from about to 2 to about 7, and most preferably from about to 3 to about 5; and the number average molecular weight ranging from ranges from about to 300 to about 1,000, preferably from about to 400 to about 900, more preferably from about to 500 to about 900,
- the treatment is a polysiloxane polyether having the general formula:
- 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, preferably from about to 1.5 to about 6, more preferably from about to 1.5 to about 5, and most preferably from about to 1.5 to about 4;
- the subscript b ranges from about 1 to about 10, preferably from about 1 to about 7, more preferably from about 1 to about 5, and most preferably from about to 1 to about 3;
- the subscript c ranges from zero to 2, more preferably from 1 to 2, and is most preferably 2;
- the subscript d ranges from about to 1 to about 10, preferably from about to 2 to about 8, more preferably from about to 2 to about 7, and most preferably from about to 3 to about 5;
- the subscript e ranges from about to 1 to about 10, preferably from about to 2 to about 8, more preferably from about to 2 to about 7, and most preferably from about to 3 to
- the treatment of the present invention is a mixture comprising two or more of the first, second and third embodiments.
- the subscripts a, b, c, d etc. will assume integral values.
- the values of the subscripts will assume non-integral values depending on the population fraction for a given molecular weight, i.e. molar averaged stoichiometric subscripts will be non-integral in the case of mixtures as opposed to pure compounds.
- the advantages of the present invention are that the silicone polyether compounds of the present invention do not require a co-treatment.
- the materials also are effective at extremely low levels and maintain effectiveness after as many as five washings. Thus the materials maintain effectiveness after one, two, three, four and five washings. Effectiveness as to the hydrophilic coating is defined in the experimental section.
- the hydrophilic coatings or treatments of the present invention typically comprise from about 0.01 to about 20.00 weight percent of the total weight of the treated fabric, preferably from about 0.10 to about 10.00 weight percent of the total weight of the treated fabric, more preferably from about 0.50 to about 5.00 weight percent of the total weight of the treated fabric, and most preferably from about 0.75 to about 2.50 weight percent of the total weight of the treated fabric.
- the coated fabric may demonstrate a greater or lesser hydrophilic behavior for a given treatment composition depending on whether the coating is applied from an aqueous solution or dispersion or an alcoholic solution or dispersion.
- the greatest hydrophilic behavior is observed when the hydrophilic coating is applied from an aqueous dispersion, particularly when water is the only solvent employed.
- Textiles treated by the treatment of the present invention are useful for disposable absorbent articles such as diapers, training pants, incontinence products, wipes, feminine care products and the like. Wipes may be personal care wipes, floor care wipes, household care wipes, automotive care wipes and the like.
- the treatment of the present invention involves depositing the treating agent, the compounds used in the present invention, onto the textile or fabric being treated to render it hydrophilic, preferably durably hydrophilic.
- the base fabric used in evaluating the coating compositions of the present invention was a spunbound polypropylene nonwoven web having a basis weight of 15.5 g per square meter.
- the fabric was cut into test swatches having dimensions of 22 ⁇ 5 cm ⁇ 28 ⁇ 5 cm and an average weight ranging from 0.9 to 1.1 g (1.00 ⁇ 0.10 g).
- the silicone polyether compounds evaluated had the following structural formulas:
- silicone polyethers listed in Table 1 were suspended or dissolved in a 50 weight percent aqueous solution of isopropanol (2-propanol) or water at levels of 2.0, 0.5, 0.4 and 0.1 weight percent.
- Samples of the nonwoven spunbonded polypropylene fabric were treated by soaking them in the water-alcohol-silicone polyether mixture for 1-2 hours followed by drying in a forced air oven for 30 minutes at 105° C.
- the coated textiles when coated with the compounds of the present invention will pick up varying amounts of water depending on how extensively the textile is treated. If only the external surfaces of the textile are treated at very low levels, the total amount of water absorbed by the treated textile will be very low and may be indistinguishable from an untreated fabric. However, if the entire body of the fabric, exterior and interior, has been treated, the treated fabric can absorb as much as 300 to 400 weight percent.
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Abstract
Description
- This application is a divisional of U.S. Ser. No. 09/997,939 filed Nov. 29, 2001 which is a continuation-in-part application of U.S. Ser. No. 09/443,182 filed Nov. 19, 1999 which is a continuation of U.S. Ser. No. 08/995,389 filed Dec. 22, 1997.
- The present invention relates to low molecular weight silicone polyether ABA type block copolymers that are useful to imparting a hydrophilic coating to the surface of either woven or non-woven textiles.
- Textiles are made from a variety of materials both natural and man made. Natural textiles include cotton, wool, silk, linen and the like while synthetic textiles are derived from various high polymers such as polyesters, polyamides, polyimides, and the various polyolefins, e.g. polyethylene, polypropylene, polybutylene. While polymers are used extensively to make a variety of products ranging from blown and cast films, extruded sheets, injection molded articles, foams, blow molded articles, extruded pipe, monofilaments and non-woven webs many of the polymers used for such materials are hydrophobic. In many cases this property is an advantage.
- There are a number of uses to which polymers may be put where their hydrophobic nature either limits their usefulness or requires some modification. This is particularly true of polyolefins such as polyethylene and polypropylene which are used to manufacture polymeric fabrics which are used in disposable absorbent articles such as diapers, training pants, incontinence products, wipes, feminine care products and the like. These polymeric fabrics are typically non-woven webs prepared by meltblowing, coforming or spunbonding. For uses such as the foregoing these non-woven fabrics need to be wettable. Frequently wettability can be obtained by coating the fabric in some fashion with a treatment solution during or after formation of the fabric web and drying the web.
- Some of the more commonly applied topically applied treatments are nonionic treatments, for example polyethoxylated octylphenols and the condensation products of propylene oxide with propylene glycol. These types of treatments are effective in rendering normally hydrophobic polymeric fabrics wettable or hydrophilic. However, the treatment is readily removed from the fabric, often after only a single exposure to an aqueous liquid.
- There have been several different approaches to increasing the durability of treatments that are topically applied to the surface of a fabric. Among these approaches have been:
- (1) the use of a composition that includes water, a primary treatment, and a co-treatment that functions to wet the fabric with the treatment composition and that provides for a substantially uniform distribution of the primary treatment onto the fabric;
- (2) the use of a treatment, with or without a nonionic co-treatment that is the reaction product of an acid anhydride derivative with a polyhydroxy compound, polyethylene glycol, triethanolamine, a polyhydroxyamine, and certain unsaturated aliphatic sulfo compounds;
- (3) the use of a treatment, with or without a nonionic co-treatment that is the reaction product of certain unsaturated aliphatic sulfo compounds with the reaction product of an acid anhydride derivative with a polyamine having at least one NH group capable of addition to a double bond;
- (4) the use of a treatment mixture that includes an ester acid, ester salt, or a mixture thereof, and an amide-acid, amide-salt or mixture thereof with or without a nonionic co-treatment;
- (5) the use of a treatment mixture that includes a sorbitol succinate treatment and a co-wetting aid that can be a silicone polyether or a primary or secondary alcohol; and
-
- where R1 and R6 are selected from the group of hydrogen and C1-8 alkyl and aryl, R2, R3, R4 and R5 are selected from the group of C1-8 alkyl and aryl, the subscript a represents an integer ranging from about 8 to about 25, the subscript b represents an integer ranging from about 8 to about 25, the ratio of b to a is in a range of from about 0.7 to about 1.5, the subscript c represents an integer from 1 to about 10, the subscript d represents an integer of from about 40 to about 70 the ratio of d to two times the sum of a and b is in a range of from about 0.7 to about 1.5 and the number average molecular weight is preferably in a range of from about 5,000 to about 35,000, more preferably from about 6,500 to about 18,500 and most preferably about 7,000.
- The examples of U.S. Pat. No. 5,540,984 ('984) teach that silicone polyether treatments having a molecular weight below about 7,000 do not provide the durability provided by patentee's invention. Further, the polyether endgroups on the silicone treatments employed by the '984 patent ranged from about 50 to 80 weight percent propylene oxide and from about 50 to about 20 weight percent ethylene oxide. The '984 patent specifically teaches that reversing this weight ratio of polyether end groups to 85 weight percent ethylene oxide and 15 weight percent propylene oxide (patentee's example P) does not provide a durable hydrophilic coating as defined by patentee. This is emphasized by patentee's results for a silicone polyether treatment having 100 weight percent ethylene oxide polyether groups wherein the treatment was not durable (patentee's example J). Thus, the '984 patent teaches that the polyether substituents of the silicone polyether treatment must contain a mix of ethylene oxide and propylene oxide groups or preferably all propylene oxide groups. These results were obtained for copolymers terminated with the respective polyether moieties.
- Notwithstanding the advances that have been made in rendering fabrics wettable by providing for a hydrophilic coating there remains a need for further improvement in these areas.
- The present invention provides for a treatment silicone compound selected from the group consisting of:
-
- 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 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.
-
- 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 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;
-
- 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 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.
- Such treatment silicone compositions are useful for treating fabrics comprised of natural or synthetic polymeric materials to render the fabrics hydrophilic, i.e. capable of picking up and absorbing quantities of water. Such treatment silicone compositions are useful for treating cellulosic materials such as paper.
- As used herein, the term “polymeric fabric” means a fabric prepared from any polymeric material capable of being formed into a fabric and includes fabric webs such as paper. Thus, such material can be synthetic or natural, although the former are more likely to be employed in the present invention. Examples of natural polymeric materials include, cotton, silk, wool, and cellulose, by way of illustration only. Synthetic polymeric materials, in turn, can be either thermosetting or thermoplastic materials, with thermoplastic materials being more common. As used herein fabric means any textile, non-woven or woven, or any web such as paper or felt.
- Examples of thermosetting polymers include, by way of illustration only, alkyd resins, such as phthalic anhydride-glycerol resins, maleic acid-glycerol resins, adipic acid-glycerol resins, and phthalic anhydride-pentaerythritol resins; allylic resins, in which such monomers as diallyl phthalate, diallyl isophthalate diallyl maleate, and diallyl chlorendate serve as nonvolatile cross-linking agents in polyester compounds; amino resins, such as aniline-formaldehyde resins, ethylene urea-formaldehyde resins, dicyandiamide-formaldehyde resins, melamine-formaldehyde resins, sulfonamide-formaldehyde resins, and urea-formaldehyde resins; epoxy resins, such as cross-linked epichlorohydrin-bisphenol A resins; phenolic resins, such as phenol-formaldehyde resins, including Novolacs and resols; and thermosetting polyesters, silicones, and urethanes.
- Examples of thermoplastic polymers include, by way of illustration only, end-capped polyacetals, such as poly(oxymethylene) or polyformaldehyde, poly(trichloroacetaldehyde), poly(n-valeraldehyde), poly(acetaldehyde), poly(propionaldehyde), and the like; acrylic polymers, such as polyacrylamide, poly(acrylic acid), poly(methacrylic acid), poly(ethyl acrylate), poly(methyl methacrylate), and the like; fluorocarbon polymers, such as poly(tetrafluoroethylene), perfluorinated ethylene-propylene copolymers, ethylene-tetrafluoroethylene copolymers, poly(chlorotrifluoroethylene), ethylene-chlorotrifluoroethylene copolymers, poly(vinylidene fluoride), poly(vinyl fluoride), and the like; polyamides, such as poly(6-aminocaproic acid) or poly(epsilon-caprolactam), poly(hexamethylene adipamide), poly(hexamethylene sebacamide), poly(11-amino-undecanoic acid), and the like; polyaramides, such as poly(imino-1,3-phenyleneiminoisophthaloyl) or poly(m-phenylene isophthalamide), and the like; parylenes, such as poly-p-xylylene, poly(chloro-p-xylylene), and the like; polyaryl ethers, such as poly(oxy-2,6-dimethyl-1,4-phenylene) or poly(p-phenylene oxide), and the like; polyaryl sulfones, such as 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), and the like; polycarbonates, such as poly(bisphenolA)orpoly(carbonyldioxy-1,4-phenyleneisopropylidene-1,4-phenylene), and the like; polyesters, such as poly(ethylene terephthalate), poly(tetramethylene terephthalate), poly(cyclohexylene-1,4-dimethylene terephthalate) or poly(oxymethylene-1,4-cyclohexylenemethyleneoxyterephthaloyl), and the like; polyaryl sulfides, such as poly(p-phenylene sulfide) or poly(thio-1,4-phenylene), and the like; polyimides, such as poly(pyromellitimido-1,4-phenylene), and the like; polyolefins, such as 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, and the like: copolymers of the foregoing, such as acrylonitrile-butadiene-styrene (ABS) copolymers, and the like; and the like. In certain embodiments, the polymeric fabric will be prepared from a polyolefin. In other embodiments, the polyolefin will be polypropylene or polyethylene.
- The term “fabric” is used broadly herein to mean any fibrous material which has been formed into a sheet or web. That is, the fabric is composed, at least in part, of fibers of any length. Thus, the fabric can be a woven or nonwoven sheet or web, all of which are readily prepared by methods well-known to those having ordinary skill in the art. For example, nonwoven webs are prepared by such processes as meltblowing, coforming, spunbonding, carding, air laying, and wet laying. Moreover, the fabric can consist of a single layer or multiple layers. In addition, a multilayered fabric can include films, scrim, and other nonfibrous materials.
- As used herein, the term “durable” means that the polymeric fabric to which a treatment has been applied can be subjected to the rigorous washing procedure described hereinafter or to multiple exposures to water and remain wettable.
- The term “treatment” is used herein to mean any active agent that is capable of durably rendering a polymeric fabric (i.e. a fabric either woven or non-woven made from a polymeric fiber) wettable. In some embodiments, the treatment is a linear polysiloxane that is terminated at each end by a polyether moiety derived from ethylene oxide, commonly referred to as an A-B-A polymer. In one embodiment, the treatment is a polysiloxane polyether having the general 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 hydrocarbon radicals; the subscript a ranges from about to 1 to about 8, preferably from about to 1.5 to about 6, more preferably from about to 1.5 to about 5, and most preferably from about to 1.5 to about 4; the subscript b ranges from about 1 to about 10, preferably from about 1 to about 7, more preferably from about 1 to about 5, and most preferably from about to 1 to about 3; the subscript c ranges from zero to 2, more preferably from 1 to 2, and is most preferably 2; the subscript d ranges from about to 1 to about 10, preferably from about to 2 to about 8, more preferably from about to 2 to about 7, and most preferably from about to 3 to about 5; and the number average molecular weight ranging from ranges from about to 300 to about 1,000, preferably from about to 400 to about 900, more preferably from about to 500 to about 900, and most preferably from about to 600 to about 800.
-
- 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 hydrocarbon radicals; the subscript a ranges from about to 1 to about 8, preferably from about to 1.5 to about 6, more preferably from about to 1.5 to about 5, and most preferably from about to 1.5 to about 4; the subscript b ranges from about 1 to about 10, preferably from about 1 to about 7, more preferably from about 1 to about 5, and most preferably from about to 1 to about 3; the subscript c ranges from zero to 2, more preferably from 1 to 2, and is most preferably 2; the subscript d ranges from about to 1 to about 10, preferably from about to 2 to about 8, more preferably from about to 2 to about 7, and most preferably from about to 3 to about 5; and the number average molecular weight ranging from ranges from about to 300 to about 1,000, preferably from about to 400 to about 900, more preferably from about to 500 to about 900, and most preferably from about to 600 to about 800.
-
- 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 hydrocarbon radicals; the subscript a ranges from about to 1 to about 8, preferably from about to 1.5 to about 6, more preferably from about to 1.5 to about 5, and most preferably from about to 1.5 to about 4; the subscript b ranges from about 1 to about 10, preferably from about 1 to about 7, more preferably from about 1 to about 5, and most preferably from about to 1 to about 3; the subscript c ranges from zero to 2, more preferably from 1 to 2, and is most preferably 2; the subscript d ranges from about to 1 to about 10, preferably from about to 2 to about 8, more preferably from about to 2 to about 7, and most preferably from about to 3 to about 5; the subscript e ranges from about to 1 to about 10, preferably from about to 2 to about 8, more preferably from about to 2 to about 7, and most preferably from about to 3 to about 5; and the number average molecular weight ranging from ranges from about to 300 to about 1,000, preferably from about to 400 to about 900, more preferably from about to 500 to about 900, and most preferably from about to 600 to about 800.
- In a fourth embodiment the treatment of the present invention is a mixture comprising two or more of the first, second and third embodiments. It should be noted that for molecular species the subscripts a, b, c, d etc. will assume integral values. When a mixture of compounds is employed as the treatment component, the values of the subscripts will assume non-integral values depending on the population fraction for a given molecular weight, i.e. molar averaged stoichiometric subscripts will be non-integral in the case of mixtures as opposed to pure compounds.
- The advantages of the present invention are that the silicone polyether compounds of the present invention do not require a co-treatment. The materials also are effective at extremely low levels and maintain effectiveness after as many as five washings. Thus the materials maintain effectiveness after one, two, three, four and five washings. Effectiveness as to the hydrophilic coating is defined in the experimental section.
- The hydrophilic coatings or treatments of the present invention typically comprise from about 0.01 to about 20.00 weight percent of the total weight of the treated fabric, preferably from about 0.10 to about 10.00 weight percent of the total weight of the treated fabric, more preferably from about 0.50 to about 5.00 weight percent of the total weight of the treated fabric, and most preferably from about 0.75 to about 2.50 weight percent of the total weight of the treated fabric.
- Depending on the means employed to coat the fabric, the coated fabric may demonstrate a greater or lesser hydrophilic behavior for a given treatment composition depending on whether the coating is applied from an aqueous solution or dispersion or an alcoholic solution or dispersion. The greatest hydrophilic behavior is observed when the hydrophilic coating is applied from an aqueous dispersion, particularly when water is the only solvent employed. Textiles treated by the treatment of the present invention are useful for disposable absorbent articles such as diapers, training pants, incontinence products, wipes, feminine care products and the like. Wipes may be personal care wipes, floor care wipes, household care wipes, automotive care wipes and the like. In one embodiment, the treatment of the present invention, heretofore referred to as a coating, which coating may be a partial coating or a complete coating, involves depositing the treating agent, the compounds used in the present invention, onto the textile or fabric being treated to render it hydrophilic, preferably durably hydrophilic.
- All U.S. patents referenced herein are specifically herewith and hereby incorporated by reference.
- The following experiments are to be regarded as illustrative only and are not intended by their presentation to constitute any limitations upon the appended claims.
- Experimental
- The base fabric used in evaluating the coating compositions of the present invention was a spunbound polypropylene nonwoven web having a basis weight of 15.5 g per square meter. The fabric was cut into test swatches having dimensions of 22±5 cm×28±5 cm and an average weight ranging from 0.9 to 1.1 g (1.00±0.10 g). The silicone polyether compounds evaluated had the following structural formulas:
- The silicone polyether compounds evaluated for the purposes of the present invention are listed in Table 1.
TABLE 1 Structural Parameters for Silicone Polyethers Sample No. Type R1 R2 R3 a b c d e 1 A H CH3 CH3 1.8 3 2 3 0 2 A H CH3 CH3 4 3 2 0 0 3 A H CH3 CH3 4 3 2 3 0 4 A H CH3 CH3 4 3 2 4 0 5 A H CH3 CH3 4 3 2 5 0 6 A H CH3 CH3 8 3 2 3 0 7 A H CH3 CH3 8 3 2 5 0 8 A H CH3 CH3 8 3 2 10 0 9 A H CH3 CH3 12 3 2 15 0 10 A H CH3 CH3 20 3 2 25 0 11 B H CH3 CH3 1.7 3 2 3 0 12 C H CH3 CH3 12 3 3 20 3 - The silicone polyethers listed in Table 1 were suspended or dissolved in a 50 weight percent aqueous solution of isopropanol (2-propanol) or water at levels of 2.0, 0.5, 0.4 and 0.1 weight percent. Samples of the nonwoven spunbonded polypropylene fabric were treated by soaking them in the water-alcohol-silicone polyether mixture for 1-2 hours followed by drying in a forced air oven for 30 minutes at 105° C. The treated fabrics, having swatch dimensions of 22×28 cm. and weighing on average 0.95 g each were tested for hydrophilicity by pouring 100 g of water onto the fabric samples while the fabric sample was supported at a 35° angle above horizontal with an absorbent pad directly underneath the sample, which is known in the art as a run-off test. The absorbent pad was obtained by placing ten layers of commercially available paper towels one on top of each other; the paper towels having essentially the same dimensions as the fabric test swatch. Any of the water that ran off the fabric and was not absorbed was collected and measured. The treated fabric was judged effective or as having an effective hydrophilic coating if the fabric swatch and the absorbent pad thereunder retained 80 g of the 100 g poured onto the fabric, i.e. 80%. Conversely, if 20 g of water or more was recovered from the test the fabric sample was deemed to have failed the test. Fabrics that were treated with a water solution or dispersion of the compounds of the present invention tended to perform better than fabrics treated with alcoholic solutions or dispersions. The amount of coating it is possible to impart to the treated fabric tends to be a function of how the fabric is treated, i.e. whether the external surfaces of the fabric are treated or whether the entire fabric is immersed into the impregnating solution or dispersion.
TABLE 2 Coating Weights of Hydrophilic Silicone Coating on Textile Samples Solution Concentra- Coating Concentra- tion of Weight tion of Aqueous of Silicone, Sample No. A D Silicone, wt. % iso-Pr-OH wt. % A-1 1.8 3 0.05 0 4.67 A-3 4 3 2.00 50 6.59 A-3 4 3 0.50 50 0.66 A-3 4 3 0.40 50 1.20 A-3 4 3 0.40 0 15.03 A-3 4 3 0.30 0 6.88 A-3 4 3 0.20 0 4.64 A-3 4 3 0.10 0 1.75 A-3 4 3 0.05 0 1.68 A-5 4 5 2.00 50 8.01 A-5 4 5 0.50 50 1.30 A-5 4 5 0.05 0 1.25 A-6 8 3 0.05 0 0 A-7 8 5 2.00 50 3.44 A-8 8 10 2.00 50 3.78 A-8 8 10 0.05 28 0 A-9 12 15 0.05 28 0 A-10 20 25 0.05 28 0.02 B-1 1.7 2 2.00 50 9.01 B-1 1.7 3 0.50 50 1.31 C-1 8 1 0.05 0 0 C-2 12 3 2.00 50 5.39 C-2 12 3 0.05 28 0.05 - The coated textiles when coated with the compounds of the present invention will pick up varying amounts of water depending on how extensively the textile is treated. If only the external surfaces of the textile are treated at very low levels, the total amount of water absorbed by the treated textile will be very low and may be indistinguishable from an untreated fabric. However, if the entire body of the fabric, exterior and interior, has been treated, the treated fabric can absorb as much as 300 to 400 weight percent.
Claims (16)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/620,791 US20040018788A1 (en) | 1997-12-22 | 2003-07-16 | Durable hydrophilic coating for textiles |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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US99538997A | 1997-12-22 | 1997-12-22 | |
US44318299A | 1999-11-19 | 1999-11-19 | |
US09/997,939 US6630415B2 (en) | 1997-12-22 | 2001-11-29 | Durable hydrophilic coating for textiles |
US10/620,791 US20040018788A1 (en) | 1997-12-22 | 2003-07-16 | Durable hydrophilic coating for textiles |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US09/997,939 Division US6630415B2 (en) | 1997-12-22 | 2001-11-29 | Durable hydrophilic coating for textiles |
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US20040018788A1 true US20040018788A1 (en) | 2004-01-29 |
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US09/997,939 Expired - Fee Related US6630415B2 (en) | 1997-12-22 | 2001-11-29 | Durable hydrophilic coating for textiles |
US10/620,791 Abandoned US20040018788A1 (en) | 1997-12-22 | 2003-07-16 | Durable hydrophilic coating for textiles |
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Application Number | Title | Priority Date | Filing Date |
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US09/997,939 Expired - Fee Related US6630415B2 (en) | 1997-12-22 | 2001-11-29 | Durable hydrophilic coating for textiles |
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US (2) | US6630415B2 (en) |
EP (1) | EP0924239B1 (en) |
JP (1) | JPH11240954A (en) |
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US20090113637A1 (en) * | 2006-06-07 | 2009-05-07 | Kimmai Thi Nguyen | Treating textiles with silicone polyether-amide block copolymers |
US20100319149A1 (en) * | 2007-06-26 | 2010-12-23 | Live-Right, Llc | Infant toothbrush |
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US8735524B2 (en) * | 2011-09-09 | 2014-05-27 | Air Products And Chemicals, Inc. | Silicone containing compositions and uses thereof |
CN103958530A (en) * | 2011-11-04 | 2014-07-30 | 道康宁公司 | Hydrophilic organosilanes |
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US5811482A (en) * | 1996-07-17 | 1998-09-22 | Osi Specialties, Inc. | Non-migrating hydrophilic silicone finish for hydrophobic substrates such as nonwovens |
US6211284B1 (en) * | 1998-06-30 | 2001-04-03 | Dow Corning Toray Silicone Co. | Highly storage-stable organopolysiloxane composition |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US20090113637A1 (en) * | 2006-06-07 | 2009-05-07 | Kimmai Thi Nguyen | Treating textiles with silicone polyether-amide block copolymers |
US7896929B2 (en) | 2006-06-07 | 2011-03-01 | Dow Corning Corporation | Treating textiles with silicone polyether-amide block copolymers |
US20100319149A1 (en) * | 2007-06-26 | 2010-12-23 | Live-Right, Llc | Infant toothbrush |
Also Published As
Publication number | Publication date |
---|---|
EP0924239A1 (en) | 1999-06-23 |
JPH11240954A (en) | 1999-09-07 |
DE69827751D1 (en) | 2004-12-30 |
US6630415B2 (en) | 2003-10-07 |
EP0924239B1 (en) | 2004-11-24 |
US20020061406A1 (en) | 2002-05-23 |
DE69827751T2 (en) | 2005-12-01 |
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