WO2024012662A1 - Extender compounds for durable water repellence - Google Patents
Extender compounds for durable water repellence Download PDFInfo
- Publication number
- WO2024012662A1 WO2024012662A1 PCT/EP2022/069458 EP2022069458W WO2024012662A1 WO 2024012662 A1 WO2024012662 A1 WO 2024012662A1 EP 2022069458 W EP2022069458 W EP 2022069458W WO 2024012662 A1 WO2024012662 A1 WO 2024012662A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- isocyanate
- compound
- dwr
- poly
- water
- Prior art date
Links
- 150000001875 compounds Chemical class 0.000 title claims abstract description 41
- 239000004606 Fillers/Extenders Substances 0.000 title claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title description 14
- 239000004744 fabric Substances 0.000 claims abstract description 36
- 239000005871 repellent Substances 0.000 claims abstract description 33
- 239000004753 textile Substances 0.000 claims abstract description 24
- 239000005056 polyisocyanate Substances 0.000 claims abstract description 20
- 150000001491 aromatic compounds Chemical class 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 15
- 239000000376 reactant Substances 0.000 claims abstract description 9
- 239000000835 fiber Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 6
- 239000007795 chemical reaction product Substances 0.000 claims abstract description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 3
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 3
- XPFVYQJUAUNWIW-UHFFFAOYSA-N furfuryl alcohol Chemical compound OCC1=CC=CO1 XPFVYQJUAUNWIW-UHFFFAOYSA-N 0.000 claims description 27
- RKMGAJGJIURJSJ-UHFFFAOYSA-N 2,2,6,6-tetramethylpiperidine Chemical compound CC1(C)CCCC(C)(C)N1 RKMGAJGJIURJSJ-UHFFFAOYSA-N 0.000 claims description 18
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 16
- 239000012948 isocyanate Substances 0.000 claims description 15
- 230000002940 repellent Effects 0.000 claims description 15
- 239000000126 substance Substances 0.000 claims description 15
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 claims description 14
- CRVGTESFCCXCTH-UHFFFAOYSA-N methyl diethanolamine Chemical compound OCCN(C)CCO CRVGTESFCCXCTH-UHFFFAOYSA-N 0.000 claims description 11
- -1 aromatic isocyanate Chemical class 0.000 claims description 10
- 239000004814 polyurethane Substances 0.000 claims description 9
- 229920002635 polyurethane Polymers 0.000 claims description 8
- GOQYKNQRPGWPLP-UHFFFAOYSA-N n-heptadecyl alcohol Natural products CCCCCCCCCCCCCCCCCO GOQYKNQRPGWPLP-UHFFFAOYSA-N 0.000 claims description 7
- JIABEENURMZTTI-UHFFFAOYSA-N 1-isocyanato-2-[(2-isocyanatophenyl)methyl]benzene Chemical compound O=C=NC1=CC=CC=C1CC1=CC=CC=C1N=C=O JIABEENURMZTTI-UHFFFAOYSA-N 0.000 claims description 6
- 239000005057 Hexamethylene diisocyanate Substances 0.000 claims description 6
- 235000019445 benzyl alcohol Nutrition 0.000 claims description 6
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims description 6
- 229920000728 polyester Polymers 0.000 claims description 6
- 239000004094 surface-active agent Substances 0.000 claims description 6
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 4
- 239000004952 Polyamide Substances 0.000 claims description 4
- 229920006243 acrylic copolymer Polymers 0.000 claims description 4
- 150000007824 aliphatic compounds Chemical class 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 229920002647 polyamide Polymers 0.000 claims description 4
- 239000000654 additive Substances 0.000 claims description 3
- 229920005862 polyol Polymers 0.000 claims description 3
- 150000003077 polyols Chemical class 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 229920000877 Melamine resin Polymers 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 2
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 claims description 2
- 229920006149 polyester-amide block copolymer Polymers 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 description 11
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 9
- 150000002513 isocyanates Chemical class 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 8
- 239000007921 spray Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 6
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 6
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 239000002981 blocking agent Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 4
- 125000000524 functional group Chemical group 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 4
- PGYPOBZJRVSMDS-UHFFFAOYSA-N loperamide hydrochloride Chemical compound Cl.C=1C=CC=CC=1C(C=1C=CC=CC=1)(C(=O)N(C)C)CCN(CC1)CCC1(O)C1=CC=C(Cl)C=C1 PGYPOBZJRVSMDS-UHFFFAOYSA-N 0.000 description 4
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 3
- 230000001976 improved effect Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 229920002994 synthetic fiber Polymers 0.000 description 3
- 239000004758 synthetic textile Substances 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- 239000000080 wetting agent Substances 0.000 description 3
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- WHKUVVPPKQRRBV-UHFFFAOYSA-N Trasan Chemical compound CC1=CC(Cl)=CC=C1OCC(O)=O WHKUVVPPKQRRBV-UHFFFAOYSA-N 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 150000002009 diols Chemical class 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- YKYONYBAUNKHLG-UHFFFAOYSA-N propyl acetate Chemical compound CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 description 2
- 239000001993 wax Substances 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- DNIAPMSPPWPWGF-VKHMYHEASA-N (+)-propylene glycol Chemical compound C[C@H](O)CO DNIAPMSPPWPWGF-VKHMYHEASA-N 0.000 description 1
- ZWVMLYRJXORSEP-UHFFFAOYSA-N 1,2,6-Hexanetriol Chemical compound OCCCCC(O)CO ZWVMLYRJXORSEP-UHFFFAOYSA-N 0.000 description 1
- YPFDHNVEDLHUCE-UHFFFAOYSA-N 1,3-propanediol Substances OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 description 1
- 229940035437 1,3-propanediol Drugs 0.000 description 1
- XUJLWPFSUCHPQL-UHFFFAOYSA-N 11-methyldodecan-1-ol Chemical class CC(C)CCCCCCCCCCO XUJLWPFSUCHPQL-UHFFFAOYSA-N 0.000 description 1
- PTJWCLYPVFJWMP-UHFFFAOYSA-N 2-[[3-hydroxy-2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)COCC(CO)(CO)CO PTJWCLYPVFJWMP-UHFFFAOYSA-N 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- XEGQWJQMFPJOKD-UHFFFAOYSA-N C(C)(=O)OCCCC.C(O)C(CC)(CO)CO Chemical compound C(C)(=O)OCCCC.C(O)C(CC)(CO)CO XEGQWJQMFPJOKD-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
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 1
- RFSUNEUAIZKAJO-ARQDHWQXSA-N Fructose Chemical compound OC[C@H]1O[C@](O)(CO)[C@@H](O)[C@@H]1O RFSUNEUAIZKAJO-ARQDHWQXSA-N 0.000 description 1
- 229930091371 Fructose Natural products 0.000 description 1
- 239000005715 Fructose Substances 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 238000004566 IR spectroscopy Methods 0.000 description 1
- 229920001730 Moisture cure polyurethane Polymers 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- TVXBFESIOXBWNM-UHFFFAOYSA-N Xylitol Natural products OCCC(O)C(O)C(O)CCO TVXBFESIOXBWNM-UHFFFAOYSA-N 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000006184 cosolvent Substances 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- NNYOSLMHXUVJJH-UHFFFAOYSA-N heptane-1,5-diol Chemical compound CCC(O)CCCCO NNYOSLMHXUVJJH-UHFFFAOYSA-N 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 238000007603 infrared drying Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- HEBKCHPVOIAQTA-UHFFFAOYSA-N meso ribitol Natural products OCC(O)C(O)C(O)CO HEBKCHPVOIAQTA-UHFFFAOYSA-N 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229920000166 polytrimethylene carbonate Polymers 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000003011 styrenyl group Chemical class [H]\C(*)=C(/[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000003760 tallow Substances 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- QXJQHYBHAIHNGG-UHFFFAOYSA-N trimethylolethane Chemical compound OCC(C)(CO)CO QXJQHYBHAIHNGG-UHFFFAOYSA-N 0.000 description 1
- 230000004584 weight gain Effects 0.000 description 1
- 235000019786 weight gain Nutrition 0.000 description 1
- 239000000811 xylitol Substances 0.000 description 1
- HEBKCHPVOIAQTA-SCDXWVJYSA-N xylitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)CO HEBKCHPVOIAQTA-SCDXWVJYSA-N 0.000 description 1
- 229960002675 xylitol Drugs 0.000 description 1
- 235000010447 xylitol Nutrition 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
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/395—Isocyanates
-
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
- C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
-
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/80—Masked polyisocyanates
- C08G18/8003—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen
- C08G18/8006—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32
- C08G18/8009—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32 with compounds of C08G18/3203
- C08G18/8022—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32 with compounds of C08G18/3203 with polyols having at least three hydroxy groups
-
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/80—Masked polyisocyanates
- C08G18/8003—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen
- C08G18/8006—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32
- C08G18/8009—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32 with compounds of C08G18/3203
- C08G18/8022—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32 with compounds of C08G18/3203 with polyols having at least three hydroxy groups
- C08G18/8025—Masked aliphatic or cycloaliphatic polyisocyanates
-
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/80—Masked polyisocyanates
- C08G18/8003—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen
- C08G18/8006—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32
- C08G18/8009—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32 with compounds of C08G18/3203
- C08G18/8022—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32 with compounds of C08G18/3203 with polyols having at least three hydroxy groups
- C08G18/8029—Masked aromatic polyisocyanates
-
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/80—Masked polyisocyanates
- C08G18/8003—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen
- C08G18/8006—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32
- C08G18/8041—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32 with compounds of C08G18/3271
-
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/80—Masked polyisocyanates
- C08G18/8061—Masked polyisocyanates masked with compounds having only one group containing active hydrogen
- C08G18/8064—Masked polyisocyanates masked with compounds having only one group containing active hydrogen with monohydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- 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
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/02—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with hydrocarbons
-
- 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
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/402—Amides imides, sulfamic acids
- D06M13/432—Urea, thiourea or derivatives thereof, e.g. biurets; Urea-inclusion compounds; Dicyanamides; Carbodiimides; Guanidines, e.g. dicyandiamides
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- 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
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
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- 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
- D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
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- 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
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- 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
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- 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
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
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- 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
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/34—Polyamides
-
- 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
- D06M2200/10—Repellency against liquids
- D06M2200/12—Hydrophobic properties
Definitions
- the present invention relates to the use of compounds that are the reaction product of a di- or poly-isocyanate and an aromatic compound as a non-reactive extender for durable water-repellence in textile fabrics, as well as a durable water-repellence system (DWR) comprising said non-reactive extender and a water-repellent compound, their use in water- repellent finishing of fibre materials, and a process for treating textile fabrics using said non- reactive extender or DWR system.
- the non-reactive extenders and the DWR systems according to the present invention are free of fluorochemicals and endow natural and synthetic textile fabrics with water-repellent properties.
- Blocked isocyanate extenders are typically delivered as emulsions in water.
- An example of such extender for oil- and water-repellent products is PHOBOL® XAN extender (Huntsman Corp.), which is a dispersion of an oxime-blocked isocyanate, requiring at least 150°C curing temperature for safety and performance reasons.
- blocked isocyanate encompasses mono-, di- and poly-isocyanates in which an isocyanate group has been reacted with blocking agents which, upon heating, release the isocyanate and the blocking agent.
- Blocking agents are e.g. amines, amides, compounds having an active hydrogen atom or alcohols. If said heating is carried out in the presence of a compound having a functional group that can react with said isocyanate group, such as a hydroxyl or an amino group of a suitable substrate such as a fibre, an improved adhesion may result.
- These blocked isocyanates are thus called extenders of the reactive-type, having as drawbacks the need of a curing temperature above 150°C and the release of the blocking agent, which is usually harmful for the environment.
- aqueous systems to obtain water-repellent properties on textiles which comprise paraffin wax and/or acrylic polymers.
- An ultimate goal is to reduce the amount of chemicals used in and energy consumed during the process.
- Such substances and processes are described, for example, in WO2010115496 A1 , WO2018054712 A1 and WO2011035906 A2.
- the present invention also provides a process for obtaining excellent water-repellent properties on said fabrics.
- the present invention relates to the use of a compound, which is the reaction product of:
- R 1 , R 2 , R 3 , R 4 and R 5 are independently selected from the group consisting of H and Ci-4 alkyl;
- Y is OH, NH 2 or SH
- X is O, N or S
- non-reactive extender in the context of the present disclosure means that the respective compounds do not react with functional group(s) of the textile fibres.
- the non-reactive extenders and the durable water- repel I ence (DWR) systems according to the present invention do neither contain any fluorochemicals nor styrenes.
- the non-reactive extenders and the DWR systems according to the present invention do not release any potentially toxic compound upon curing of the textile fabrics. Accordingly, the present invention further limits the number of ingredients used in the preparation of extenders and DWR systems for textile applications which are potentially harmful to health and environment.
- the at least one di- or poly-isocyanate (i) is preferably at least one, for example one, two or three aromatic isocyanates, aliphatic isocyanates, pre-condensates or condensates thereof.
- the aromatic isocyanate is methylene diphenyl isocyanate (MDI) or toluene diisocyanate (TDI)
- the pre-condensate or condensate is a methylene diphenyl isocyanate (MDI)-based pre-condensate or a hexamethylene diisocyanate (HDI)-based condensate.
- pre-condensate and “pre-polymer” are herein used interchangeably and mean a stable, usually partially polymerized chemical intermediate that is still reactive, i.e. can be fully polymerized at a later time (e.g. MDI pre-condensate Suprasec® 2021 or 2010 from Huntsman Corp.).
- the at least one aromatic compound (ii) is preferably benzyl alcohol or furfuryl alcohol.
- the aliphatic compound of formula (III) is stearyl alcohol.
- the further reactant(s) (iii) is/are selected from the group consisting of one or more di- or polyols, N-methyl diethanolamine (NMDEA), 2,2,6,6-tetramethylpiperidine (TMP), and mixtures thereof.
- Suitable diols according to the present invention include ethylene glycol, diethylene glycol, triethyleneglycol, 1 ,3-propanediol, 1,4-butanediol, 1,6-hexanediol, 1,5-heptanediol, or a combination thereof.
- Suitable polyols according to the present invention comprise three or more hydroxyl groups and include glycerol, trimethylol ethane, trimethylol propane, 1 ,2,6-hexanetriol, pentaerythritol, tri pentaerythritol, di pentaerythritol, trimethylol propane, propoxylated pentaerythritol, ethoxylated pentaerythritol, ethoxylated trimethylol propane, xylitol, sorbitol, glucose, fructose and sucrose.
- glycerol trimethylol ethane
- trimethylol propane 1 ,2,6-hexanetriol
- pentaerythritol tri pentaerythritol
- di pentaerythritol trimethylol propane
- propoxylated pentaerythritol ethoxylated pentaeryth
- M DI methylene diphenyl isocyanate
- the compound according to the present invention may be formulated as an aqueous dispersion, preferably comprising from about 20 weight% to about 35 weight% dry content including surfactants.
- Suitable surfactants according to the present invention are dispersants including known commercially available surface-active compounds such as nonionic ethoxylated compounds, for example ethoxylated alcohols or ethoxylated carboxylic acids, cationic surfactants such as quaternary ammonium salts, or fatty amines.
- the fatty amines are applied in combination with a suitable acid, for example, an organic acid such as acetic acid.
- the present invention also relates to a durable water-repellence (DWR) system, comprising (a) at least one non-fluorinated water-repellent compound; and (b) at least one non- reactive extender compound according to the present invention.
- DWR durable water-repellence
- the at least one non-fluorinated water-repellent compound (a) is preferably selected from the group consisting of polyurethane, acrylic copolymer, wax, melamine condensates, silicone repellents, hyperbranched/dendrimeric repellents, and mixtures thereof.
- the ratio of the at least one non-fluorinated water-repellent compound (a) to compound (b) is from about 90:10 to about 10:90, preferably from about 80:20 to about 20:80, more preferably from about 70:30 to about 30:70, and most preferably from about 60:40 to about 40:60.
- compound (a) is a polyurethane, an acrylic copolymer or a mixture thereof, and the ratio of (a) to (b) is from about 5:1 to about 1 :2, preferably from about 3:1 to about 1 :1.
- the DWR system according to the present invention may further comprise one or more substances selected from the group consisting of additives, solvents and surfactants.
- Suitable additives are wetting agents (e.g. INVADINE® PBN, from Huntsman Corp.), pH control agents (e.g. acetic acid, citric acid, hydrochloric acid, propionic acid, benzoic acid and sodium salts thereof), resins, catalysts (e.g. Knittex® types from Huntsman Corp.) and cosolvents for stabilization (e.g. glycols).
- wetting agents e.g. INVADINE® PBN, from Huntsman Corp.
- pH control agents e.g. acetic acid, citric acid, hydrochloric acid, propionic acid, benzoic acid and sodium salts thereof
- resins e.g. Knittex® types from Huntsman Corp.
- cosolvents for stabilization e.g. glycols
- Suitable solvents are any type of substance that can dissolve the compounds of the present DWR system to form a solution, e.g. alkyl acetates (such as ethyl acetate, n-propyl acetate, butyl acetate), methyl ethyl ketone (MEK), methyl /so-butyl ketone (MiBK), and dimethylformamide (DMF).
- alkyl acetates such as ethyl acetate, n-propyl acetate, butyl acetate
- MEK methyl ethyl ketone
- MiBK methyl /so-butyl ketone
- DMF dimethylformamide
- the non-reactive extender and the DWR system according to the present invention are useful in the water-repellent finishing of fiber materials.
- the present invention further relates to a process for treating a textile fabric composed of fiber materials, comprising the steps of padding the fabric with the present non-reactive extender or DWR system, and subsequently drying.
- the process according to the present invention may further comprise the step of curing.
- the maximum curing temperature is equal or below 180°C, preferably equal or below 150°C, more preferably equal or below 110°C, even more preferably equal or below 100°C, and most preferably equal or below 80°C.
- Textile fabrics to be treated with the compound or DWR system according to the present invention are, for example, polyester, polyamide, cotton, blends or variations thereof.
- the fabric is polyester or polyamide, or blends or variations thereof.
- Such fabrics are wovens, knits or nonwovens.
- the concentration of the compound according to the present invention is from about 2 to about 20 g/L, preferably from about 5 to about 15 g/L, and most preferably about 10 g/L to about 200 g/L, in a pad bath.
- the compound and DWR system according to the present invention are particularly useful for conferring water-repellent properties on natural and synthetic textile fabrics.
- the desired water-repellence effect level is achieved on synthetic textile fabrics, such as polyester fabrics or mixed fabrics of cotton and polyester, but is also visible in cotton fabrics.
- the textile fabrics treated with the compounds and DWR system according to the present invention are especially suitable for outerwear.
- Suprasec® 2021 pre-polymerised diphenyl methane diisocyanate (MDI) - functionality of 2.5 NCO groups per unit (Huntsman Corp.)
- MiBK methyl-/so-butyl ketone
- BuAc butyl acetate trimethylolpropane
- TMP 2,2,6,6-tetramethylpiperidine furfuryl alcohol benzyl alcohol stearyl alcohol
- Ethoquad HT/25 ethoxylated tallow methyl ammonium chloride propylene glycol
- HAc acetic acid IVADINE® PBN: wetting agent (Huntsman Corp.)
- Neoseed® NR-7080 polyacrylate based repellent (Nicca Textile Chemicals)
- Zelan® R3 polyurethane based repellent (Chemours/Huntsman Corp.)
- UXN Phobol Extender® UXN Reactive extender (Huntsman Corp.)
- NonREx 2 benzyl alcohol alone
- NonREx 3 a mixture of furfuryl alcohol and stearyl alcohol
- Table 1 shows the non-reactive extender compounds obtained according to the invention (NonREx 1-3), as well as the composition of a comparative extender (Comp. 1), using 2-HEA instead of one or more aromatic/aliphatic alcohols. These compositions have been used for the preparation of the aqueous dispersions in Example 2.
- Table 1 Non-reactive extender compounds (NonREx 1-3) according to the invention and comparative extender (Comp. 1).
- NMDEA /V-methyl diethanolamine
- MiBK methyl-fso-butyl ketone
- BuAc butyl acetate
- Table 2 illustrates the different aqueous dispersions obtained with the non- reactive extender compounds according to the invention (Non-REx 1-3) and comparative extender (Comp. 1).
- Table 2 Aqueous dispersions according to the invention and comparative aqueous dispersion.
- NonREx 1 NonREx 2 NonREx 3 Comp. 1 organic solution ex. 1 g 150 150 145 150
- All loadings in g/L refer to a standard solids content of 25% and are corrected in the reports to match this level.
- Standard recipes on synthetics contain 1 g/L HAc 60% and 5 mL/L IVADINE® PBN as wetting agent.
- the typical curing conditions for extender-containing formulations, as required by for product safety reasons for blocked isocyanates, are drying for 10 minutes at 110°C and curing at least 5 minutes at 150°C in a drying cupboard or equivalent conditions on a Mathis lab dryer. Application is done by padding in a manual lab foulard.
- able 3 Comparison of performance of the repellents alone (Standard) and different DWR systems subjected to Bundesmann test.
- the recipe cured at 80°C (DWR system 4) instead of 150°C kept the performance level or was improved, saving energy, removing the need for high curing temperatures and eliminating residual blocking agent on the fabric and in the exhaust compared to standard extender types.
- NR7080 (Standard 3) at 30 g/L achieved about 30% water absorbency for all curing times at 80°C, while the combination of 30g/L NR7080 with 10 g/L NonREx 1 (DWR System 4) absorbed about 21 % water absorbency, reaching or surpassing the 150°C level of the NR7080 (Standard 1) alone.
- Non-REx 1-type furan
- phenyl Non-REx 2-type
- DWR System 4 DWR System 4
- Blending the furfuryl-type extender (Non-REx 1) with a polyurethane wax (oligofunctional isocyanate reacted with stearyl alcohol) was also effective as an extender system, exhibiting a similar performance compared to Non-REx 1. Adding the stearyl component directly to the recipe improves the effect even more.
- the DWR systems according to the invention offer a strongly improved effect concerning the Bundesmann rain test before laundry, even at lower levels of repellent applied, thus lowering the cost of the recipes and reduce total amount of chemicals applied to the textile. After 5 laundry cycles (HL) the effect is reduced but still visible. After 20 laundry cycles no differences are observable, i.e. the product does not impar performance here. Main effect measure is the amount of water absorbed by the fabric in mass% during the test, the lower the better.
- the NonREx compounds according to the invention alone may contribute to water- repellence on its own, although not shown in the above results.
- the DWR systems according to the present invention perform already at 80°C delivering effect levels otherwise only seen above 120°C (e.g. Phobol® Extender XAN or UXN, which require a curing temperature of at least 150°C) reducing again cost and environmental impact, making them also applicable to fabrics requiring special treatment conditions.
- Phobol® Extender XAN or UXN which require a curing temperature of at least 150°C
- MDI methylene diphenyl diisocyanate
- HDI hexamethylene diisocyanate
- AATCC American Association of Textile Chemists and Colorists
Abstract
The present invention relates to the use of a compound, which is the reaction product of: (i) at least one di- or poly-isocyanate; (ii) at least one aromatic compound selected from the group consisting of: (I) and (II) wherein R1, R2, R3, R4 and R5 are independently selected from the group consisting of H and C1-4 alkyl; Y is OH, NH2 or SH; X is O, N or S; and (iii) optionally one or more further reactants; as a non-reactive extender for durable water-repellence in textile fabrics. The present invention further relates to a durable water-repellence (DWR) system comprising at least one non-fluorinated water-repellent compound and at least one non-reactive extender compound as above, their use in water-repellent finishing of fibre materials, as well as a process for treating a textile fabric composed on fibre materials.
Description
EXTENDER COMPOUNDS FOR DURABLE WATER REPELLENCE
[1] The present invention relates to the use of compounds that are the reaction product of a di- or poly-isocyanate and an aromatic compound as a non-reactive extender for durable water-repellence in textile fabrics, as well as a durable water-repellence system (DWR) comprising said non-reactive extender and a water-repellent compound, their use in water- repellent finishing of fibre materials, and a process for treating textile fabrics using said non- reactive extender or DWR system. The non-reactive extenders and the DWR systems according to the present invention are free of fluorochemicals and endow natural and synthetic textile fabrics with water-repellent properties.
[2] Over the past years, many countries have committed to improve the quality of the environment by saving natural resources and reducing the emission of substances which are harmful to the climate. Funds are provided by the governments to support the industry in achieving these goals. The consumer is asking for environmentally friendly textile products which are produced in accordance with highest ecological standards. Brands and retailers are conveying these demands into real requirements and textile manufacturers are continuously improving their production excellence by investing in modern equipment and selecting environmentally friendly chemical substances.
[3] It is known to furnish textile fabrics, such as wovens, knits or nonwovens, with certain properties, for example, water-repellence, by treating the fabrics with aqueous dispersions containing particular chemical ingredients. Water-repellent properties on textiles are usually achieved by using fluorine-containing products as such chemical ingredients. However, fluorine-containing products are costly and their use has been restricted due to the developing regulatory framework for chemicals.
[4] Fluorochemical treatments are relatively expensive and are often used in combination with less expensive non-fluorinated "extenders". Among known extenders, blocked isocyanates are a desirable class, since they are inexpensive, easy to prepare, and very effective. Blocked isocyanate extenders are typically delivered as emulsions in water. An example of such extender for oil- and water-repellent products is PHOBOL® XAN extender (Huntsman Corp.), which is a dispersion of an oxime-blocked isocyanate, requiring at least 150°C curing temperature for safety and performance reasons.
[5] The term "blocked isocyanate" encompasses mono-, di- and poly-isocyanates in which an isocyanate group has been reacted with blocking agents which, upon heating, release the isocyanate and the blocking agent. Blocking agents are e.g. amines, amides, compounds
having an active hydrogen atom or alcohols. If said heating is carried out in the presence of a compound having a functional group that can react with said isocyanate group, such as a hydroxyl or an amino group of a suitable substrate such as a fibre, an improved adhesion may result. These blocked isocyanates are thus called extenders of the reactive-type, having as drawbacks the need of a curing temperature above 150°C and the release of the blocking agent, which is usually harmful for the environment.
[6] Alternatively, aqueous systems to obtain water-repellent properties on textiles have been suggested which comprise paraffin wax and/or acrylic polymers. An ultimate goal is to reduce the amount of chemicals used in and energy consumed during the process. Such substances and processes are described, for example, in WO2010115496 A1 , WO2018054712 A1 and WO2011035906 A2.
[7] It is an object of the present invention to provide non-reactive extenders and systems that help provide excellent water-repellent properties on all textile fabrics including polyester- containing fabrics and reducing energy consumed and amount of chemical used in the process. The present invention also provides a process for obtaining excellent water-repellent properties on said fabrics.
[8] Accordingly, the present invention relates to the use of a compound, which is the reaction product of:
(i) at least one di- or poly-isocyanate;
(I) (H) wherein
R1, R2, R3, R4 and R5 are independently selected from the group consisting of H and Ci-4 alkyl;
Y is OH, NH2 or SH;
X is O, N or S; and
(iii) optionally one or more further reactants; as a non-reactive extender for durable water-repellence in textile fabrics.
[9] The term “non-reactive extender” in the context of the present disclosure means that the respective compounds do not react with functional group(s) of the textile fibres.
[10] The non-reactive extenders and the durable water- repel I ence (DWR) systems according to the present invention do neither contain any fluorochemicals nor styrenes. In addition, as there is no reaction with functional group(s) of the textile fibres, the non-reactive extenders and the DWR systems according to the present invention do not release any potentially toxic compound upon curing of the textile fabrics. Accordingly, the present invention further limits the number of ingredients used in the preparation of extenders and DWR systems for textile applications which are potentially harmful to health and environment.
[11] The at least one di- or poly-isocyanate (i) is preferably at least one, for example one, two or three aromatic isocyanates, aliphatic isocyanates, pre-condensates or condensates thereof.
[12] In a preferred aspect, the aromatic isocyanate is methylene diphenyl isocyanate (MDI) or toluene diisocyanate (TDI), and the pre-condensate or condensate is a methylene diphenyl isocyanate (MDI)-based pre-condensate or a hexamethylene diisocyanate (HDI)-based condensate.
[13] The terms “pre-condensate” and “pre-polymer” are herein used interchangeably and mean a stable, usually partially polymerized chemical intermediate that is still reactive, i.e. can be fully polymerized at a later time (e.g. MDI pre-condensate Suprasec® 2021 or 2010 from Huntsman Corp.).
[14] The at least one aromatic compound (ii) is preferably benzyl alcohol or furfuryl alcohol.
[15] In one embodiment of the present invention, 50 mol% of the at least one aromatic compound (ii) is replaced with an aliphatic compound of formula (III) 'Y
, ' -21
(III), wherein Y is OH, NH2 or SH.
[16] In a preferred aspect, the aliphatic compound of formula (III) is stearyl alcohol.
[17] In one aspect, about 40% or more, and preferably about 60% or more, of the -N=C=O groups of the at least one di- or poly-isocyanate (i) reacts with the aromatic compound (ii).
[18] The further reactant(s) (iii) is/are selected from the group consisting of one or more di- or polyols, N-methyl diethanolamine (NMDEA), 2,2,6,6-tetramethylpiperidine (TMP), and mixtures thereof.
[19] Suitable diols according to the present invention include ethylene glycol, diethylene glycol, triethyleneglycol, 1 ,3-propanediol, 1,4-butanediol, 1,6-hexanediol, 1,5-heptanediol, or a combination thereof.
[20] Suitable polyols according to the present invention comprise three or more hydroxyl groups and include glycerol, trimethylol ethane, trimethylol propane, 1 ,2,6-hexanetriol, pentaerythritol, tri pentaerythritol, di pentaerythritol, trimethylol propane, propoxylated pentaerythritol, ethoxylated pentaerythritol, ethoxylated trimethylol propane, xylitol, sorbitol, glucose, fructose and sucrose.
[21] In one aspect, the further reactant(s) (iii) react(s) with about 60% or less, or preferably about 40% or less of the -N=C=O groups of the at least one di- or poly-isocyanate (i). In another aspect, the further reactant(s) (iii) reacts with about 10% to about 30% of the -N=C=O groups of the at least one di- or poly-isocyanate (i).
[22] In a preferred aspect, the compound according to the present invention is the reaction product of (i) methylene diphenyl isocyanate (M DI)- based pre-condensate having a functionality of equal or above 2, (ii) furfuryl alcohol or benzyl alcohol, which reacts with about 60% or more of the -N=C=O groups of the at least one di- or poly-isocyanate (i); and N-methyl diethanolamine (NMDEA) (iii), which reacts with about 10% of the -N=C=O groups of the at least one di- or poly-isocyanate (i), or 2,2,6,6-tetramethylpiperidine (TMP) (iii), which reacts with about 30% of the -N=C=O groups of the at least one di- or poly-isocyanate (i).
[23] The compound according to the present invention may be formulated as an aqueous dispersion, preferably comprising from about 20 weight% to about 35 weight% dry content including surfactants.
[24] Suitable surfactants according to the present invention are dispersants including known commercially available surface-active compounds such as nonionic ethoxylated compounds, for example ethoxylated alcohols or ethoxylated carboxylic acids, cationic surfactants such as quaternary ammonium salts, or fatty amines. Appropriately, the fatty amines are applied in combination with a suitable acid, for example, an organic acid such as acetic acid.
[25] If desired, further ingredients which are known to be useful as constituents of textiletreating compositions may be added to the resulting aqueous dispersion of the present invention.
[26] The present invention also relates to a durable water-repellence (DWR) system, comprising (a) at least one non-fluorinated water-repellent compound; and (b) at least one non- reactive extender compound according to the present invention.
[27] The at least one non-fluorinated water-repellent compound (a) is preferably selected from the group consisting of polyurethane, acrylic copolymer, wax, melamine condensates, silicone repellents, hyperbranched/dendrimeric repellents, and mixtures thereof.
[28] In one aspect, the ratio of the at least one non-fluorinated water-repellent compound (a) to compound (b) is from about 90:10 to about 10:90, preferably from about 80:20 to about 20:80, more preferably from about 70:30 to about 30:70, and most preferably from about 60:40 to about 40:60.
[29] In a preferred aspect, compound (a) is a polyurethane, an acrylic copolymer or a mixture thereof, and the ratio of (a) to (b) is from about 5:1 to about 1 :2, preferably from about 3:1 to about 1 :1.
[30] The DWR system according to the present invention may further comprise one or more substances selected from the group consisting of additives, solvents and surfactants.
[31] Suitable additives are wetting agents (e.g. INVADINE® PBN, from Huntsman Corp.), pH control agents (e.g. acetic acid, citric acid, hydrochloric acid, propionic acid, benzoic acid and sodium salts thereof), resins, catalysts (e.g. Knittex® types from Huntsman Corp.) and cosolvents for stabilization (e.g. glycols).
[32] Suitable solvents are any type of substance that can dissolve the compounds of the present DWR system to form a solution, e.g. alkyl acetates (such as ethyl acetate, n-propyl acetate, butyl acetate), methyl ethyl ketone (MEK), methyl /so-butyl ketone (MiBK), and dimethylformamide (DMF).
[33] The non-reactive extender and the DWR system according to the present invention are useful in the water-repellent finishing of fiber materials.
[34] The present invention further relates to a process for treating a textile fabric composed of fiber materials, comprising the steps of padding the fabric with the present non-reactive extender or DWR system, and subsequently drying.
[35] The process according to the present invention may further comprise the step of curing. The maximum curing temperature is equal or below 180°C, preferably equal or below 150°C,
more preferably equal or below 110°C, even more preferably equal or below 100°C, and most preferably equal or below 80°C.
[36] Textile fabrics to be treated with the compound or DWR system according to the present invention are, for example, polyester, polyamide, cotton, blends or variations thereof. Preferably, the fabric is polyester or polyamide, or blends or variations thereof. Usually, such fabrics are wovens, knits or nonwovens.
[37] In the process according to the present invention, the concentration of the compound according to the present invention is from about 2 to about 20 g/L, preferably from about 5 to about 15 g/L, and most preferably about 10 g/L to about 200 g/L, in a pad bath.
[38] The compound and DWR system according to the present invention are particularly useful for conferring water-repellent properties on natural and synthetic textile fabrics. Surprisingly, the desired water-repellence effect level is achieved on synthetic textile fabrics, such as polyester fabrics or mixed fabrics of cotton and polyester, but is also visible in cotton fabrics. The textile fabrics treated with the compounds and DWR system according to the present invention are especially suitable for outerwear.
[39] The following Examples serve to illustrate the invention. Unless otherwise indicated, the temperatures are given in degrees Celsius, and concentration is in g/L.
Chemicals
Suprasec® 2021 : pre-polymerised diphenyl methane diisocyanate (MDI) - functionality of 2.5 NCO groups per unit (Huntsman Corp.)
MiBK: methyl-/so-butyl ketone
BuAc: butyl acetate trimethylolpropane
NMDEA: /V-methyl diethanolamine
TMP: 2,2,6,6-tetramethylpiperidine furfuryl alcohol benzyl alcohol stearyl alcohol
2-HEA: 2-hydroxyethyl acrylate
Marlipal 013/100: ethoxylated isotridecyl alcohol 10EO
Ethoquad HT/25: ethoxylated tallow methyl ammonium chloride propylene glycol
HAc: acetic acid
IVADINE® PBN: wetting agent (Huntsman Corp.)
Neoseed® NR-7080: polyacrylate based repellent (Nicca Textile Chemicals) Zelan® R3: polyurethane based repellent (Chemours/Huntsman Corp.) UXN: Phobol Extender® UXN Reactive extender (Huntsman Corp.)
Examples
Example 1 - Synthesis of a Non-Reactive Extender Compound of the Present Invention (NonREx 1)
[40] In a 500 mL three-neck round bottom flask, equipped with a mechanical stirrer, internal thermometer, and a reflux condenser, 90.5 g of Suprasec® 2021 (0.500 eq NCO, assumed mol weight 362 g/mol) and 96 g MiBK were added under inter atmosphere. After several minutes of stirring at room temperature, a clear, low viscous solution was obtained. Then, 6.70 g (50mmol; 0.150 eq) of trimethylolpropane was added and temperature was raised to 50°C while continuously stirring the solution. Reaction progress was followed using IR spectroscopy, monitoring the peak area at 2260 cm-1 (NCO valence vibration). After 90 min at 50°C, 2.98 g (25 mmol; 0.050 eq) of NMDEA in 5.75 g of MiBK was added; a temperature increase of 7°C indicated a strong exothermic reaction. After 1 h of continued stirring at 50°C, 50.0 g of MiBK was used to dilute the reaction mass. An amount of 29.40 g (300 mmol; 0.3 eq) of furfuryl alcohol was prepared and added dropwise. During addition an exothermal reaction raised the internal temperature by 9°C. After another 90 minutes of continued stirring at 50°C, the reaction mass was allowed to cool to room temperature overnight. As viscosity increased during that period, another 46 g of MiBK was added. 370 g of reaction at 35% dry content mass were obtained.
[41] Further non-reactive extender compounds were prepared with benzyl alcohol alone (NonREx 2) and a mixture of furfuryl alcohol and stearyl alcohol (NonREx 3), synthesized from multivalent isocyanate prepolymers according to the same reaction scheme.
[42] Table 1 shows the non-reactive extender compounds obtained according to the invention (NonREx 1-3), as well as the composition of a comparative extender (Comp. 1), using 2-HEA instead of one or more aromatic/aliphatic alcohols. These compositions have been used for the preparation of the aqueous dispersions in Example 2.
Table 1 : Non-reactive extender compounds (NonREx 1-3) according to the invention and comparative extender (Comp. 1).
* S. 2021 = Suprasec® 2021
FFA = furfuryl alcohol
BZA = benzyl alcohol
SA = stearyl alcohol
2-HEA = 2-hydroxyethyl acrylate
TMP = 2,2,6,6-tetramethylpiperidine
NMDEA = /V-methyl diethanolamine MiBK = methyl-fso-butyl ketone BuAc = butyl acetate
Example 2 - General Procedure for Aqueous Dispersion preparation
[43] 150 g of the organic solution obtained in Example 1 (organic solution ex. 1 , 35.0% dry content) were kept at 60°C for 45 min. A solution of 2.1 g Marlipal 013/100, 1.05 g Ethoquad HT/25, 7.87 g propylene glycol and 243.75 g water were prepared at 55-60°C, then 6.3 g of HAc 60% were added to achieve a pH of about 3. The organic solution was added to the surfactant mixture while using a high-speed shear force stirrer. The resulting mass was passed through a high-pressure homogenizer four times at 200 bar (2x107 Pa) and 54-62°C. The organic solvent was removed from the resulting emulsion under reduced pressure. Water was added to obtain a white emulsion with a dry content of 25% (1 h at 120°C under infrared drying conditions).
[44] Table 2 below illustrates the different aqueous dispersions obtained with the non- reactive extender compounds according to the invention (Non-REx 1-3) and comparative extender (Comp. 1).
Table 2: Aqueous dispersions according to the invention and comparative aqueous dispersion.
Component Unit NonREx 1 NonREx 2 NonREx 3 Comp. 1 organic solution ex. 1 g 150 150 145 150
Surfactants Marlipal 013/100 g 2.1 2.1 1.74 2.1
Ethoquad HT/25 g 1.05 1.05 0.87 1.05 diol propylene glycol g 7.87 7.87 6.52 7.87
HAc 60% g 6.3 6.3 0.44 5.2 water g 243.75 243.75 253.75 243.75
Aqueous yield g 194.6 266 168 185.3 Dispersion dry content % 25 17.3 21 .9 25 pH 3.2 3.2 4.2
[45] The following examples describe - as a representative example - the treatment of PES textile fabrics (blue polyester, ID004) with DWR systems using the aqueous dispersions prepared as per the general procedure of Example 2.
Example 3 - Application Examples (Finishing)
General conditions
- Application
[46] All loadings in g/L refer to a standard solids content of 25% and are corrected in the reports to match this level. Standard recipes on synthetics contain 1 g/L HAc 60% and 5 mL/L IVADINE® PBN as wetting agent. The typical curing conditions for extender-containing formulations, as required by for product safety reasons for blocked isocyanates, are drying for 10 minutes at 110°C and curing at least 5 minutes at 150°C in a drying cupboard or equivalent conditions on a Mathis lab dryer. Application is done by padding in a manual lab foulard.
Laundry
[47] Samples are tested before and after laundry/one final tumble dryer cycle (LTD, laundry tumble dry). Here, laundry type 4N at 40°C, a typical home laundry simulation, is used. The
fabrics are washed together with a certain amount of additional load to meet a certain stress level for the samples.
[48] The finished fabrics obtained as per the application examples were subjected to the following tests:
[49] (I) Spray test as per AATCC
Result: droplets falling of the fabric, Spray rating 100 (best), 50 (worst); 0 (complete wetting)
[50] (II) Bundesmann test (BM) as per AATCC
Results: Bundesmann rating after 1, 5 and 10 minutes, like Spray rating 5 (no water remains on the surface, i.e. best result) to 1 (complete surface wetting)
- Water absorbency: relative weight gain of fabric sample after test in percent leakage; amount of water penetrating the sample, in mL
[51] The different DWR systems according to the invention have been prepared and compared with repellents alone (Standard) in different concentrations, as well as with comparative DWR systems. The results are summarized below in Table 3.
able 3: Comparison of performance of the repellents alone (Standard) and different DWR systems subjected to Bundesmann test.
NR-7080: Neoseed® NR-7080 FA = Furfuryl alcohol A = Stearyl alcohol ZA = Benzyl alcohol -HEA = 2-Hydroxyethyl Acrylate XN: Phobo® Extender UXN L: Home Laundry Cycles
[52] As it can be seen from Table 3 above, the DWR systems according to the present invention (i.e. NonREx 1-3 in combination with repellent acrylates - Neoseed® NR7080 and Zelan R3), a strong reduction in water absorbency on PES fabrics in different scenarios is visible. Spray rating is not impacted, it is 100 for all samples, unless otherwise mentioned.
[53] Importantly, the recipe cured at 80°C (DWR system 4) instead of 150°C kept the performance level or was improved, saving energy, removing the need for high curing temperatures and eliminating residual blocking agent on the fabric and in the exhaust compared to standard extender types.
[54] In addition, NR7080 (Standard 3) at 30 g/L achieved about 30% water absorbency for all curing times at 80°C, while the combination of 30g/L NR7080 with 10 g/L NonREx 1 (DWR System 4) absorbed about 21 % water absorbency, reaching or surpassing the 150°C level of the NR7080 (Standard 1) alone.
[55] Reducing the amount of repellent NR-7080 to 10 g/L (Standard 3) and comparing it with a recipe with additional 5 g/L of Non-REx 2 or 3 (DWR System 4) yielded again absorbency around 21 % with at 80°C. Leakage and Bundesmann ratings were restored to the levels of 30 g/L repellent alone, i.e. the combinations of 10g/L NR-7080 and 5g/L NonREx 2 or 3 at 80°C achieve similar results of 30g/L NR-7080 at 150°C. Changing the functional group in the polyurethane from furan (Non-REx 1-type) to phenyl (Non-REx 2-type) affected the performance in a similar way, i.e. they are exchangeable (DWR System 4), so that the NonREx 1 can be replaced at 150°C or 80°C with Non-REx 2 at 5 and 10 g/L usage amount of the NonREx, achieving comparable results.
[56] When lowering the amount of repellent even further to 5 g/L which is below the effective level for NR7080-type (Spray: 80/75/70; 41 % Abs.), adding a minimum of 5 g/L Non-REx 1 restores the effect (Spray 100/100/90; 21 % Abs.) - see Standard 1 versus DWR System 1. For the sake of comparison, around 21% water absorbance by the fabric (Bundesmann test) and Spray rating 100/100/100 (Spray test) is the base line effect of the repellent NR7080 alone at higher loadings.
[57] Blending the furfuryl-type extender (Non-REx 1) with a polyurethane wax (oligofunctional isocyanate reacted with stearyl alcohol) was also effective as an extender system, exhibiting a similar performance compared to Non-REx 1. Adding the stearyl component directly to the recipe improves the effect even more.
[58] The DWR systems according to the invention offer a strongly improved effect concerning the Bundesmann rain test before laundry, even at lower levels of repellent applied, thus lowering the cost of the recipes and reduce total amount of chemicals applied to the textile. After 5 laundry cycles (HL) the effect is reduced but still visible. After 20 laundry cycles no differences are observable, i.e. the product does not impar performance here. Main effect measure is the amount of water absorbed by the fabric in mass% during the test, the lower the better. The NonREx compounds according to the invention alone may contribute to water- repellence on its own, although not shown in the above results.
[59] The DWR systems according to the present invention perform already at 80°C delivering effect levels otherwise only seen above 120°C (e.g. Phobol® Extender XAN or UXN, which require a curing temperature of at least 150°C) reducing again cost and environmental impact, making them also applicable to fabrics requiring special treatment conditions.
Abbreviations:
PUR = polyurethane
PES = polyester
TDI = toluene diisocyanate
MDI = methylene diphenyl diisocyanate
HDI = hexamethylene diisocyanate
DWR = durable water-repellence system
BM = Bundesmann rain test
AATCC = American Association of Textile Chemists and Colorists
Claims
1. Use of a compound, which is the reaction product of:
(i) at least one di- or poly-isocyanate;
(I) (H) wherein
R1, R2, R3, R4 and R5 are independently selected from the group consisting of H and Ci-4 alkyl;
Y is OH, NH2 or SH;
X is O, N or S; and
(iii) optionally one or more further reactants; as a non-reactive extender for durable water-repellence in textile fabrics.
2. Use according to claim 1 , wherein the at least one di- or poly-isocyanate (i) is an aromatic isocyanate, an aliphatic isocyanate, a pre-condensate or a condensate thereof.
3. Use according to claim 2, wherein the aromatic isocyanate is chosen from methylene diphenyl isocyanate (MDI) or toluene diisocyanate (TDI), and the pre-condensate or condensate is a methylene diphenyl isocyanate (MDI)- based pre-condensate or a hexamethylene diisocyanate (HDI)-based condensate.
4. Use according to any of claims 1 to 3, wherein the at least one aromatic compound (ii) is benzyl alcohol or furfuryl alcohol.
5. Use according to any of claims 1 to 4, wherein up to about 50 mol% of the at least one aromatic compound (ii) is replaced with an aliphatic compound of formula (III)
wherein
Y is OH, NH2 or SH.
Use according to claim 5, wherein the aliphatic compound of formula (III) is stearyl alcohol. Use according to any of claims 1 to 6, wherein about 40% or more, and preferably about 60% or more, of the -N=C=O groups of the at least one di- or poly-isocyanate (i) reacts with the aromatic compound (ii). Use according to any of claims 1 to 7, wherein the at least one further reactant (iii) is selected from the group consisting of one or more di- or polyols, N-methyl diethanolamine (NMDEA), 2,2,6,6-tetramethylpiperidine (TMP) and mixtures thereof. Use according to any of claims 1 to 8, wherein the at least one further reactant (iii) reacts with about 60% or less, and preferably about 40% or less, of the -N=C=O groups of the at least one di- or poly-isocyanate (i) or with about 10% to about 30% of the -N=C=O groups of the at least one di- or poly-isocyanate (i). Use according to any of claims 1 to 9, wherein the at least one di- or poly-isocyanate (i) is methylene diphenyl isocyanate (M DI)- based pre-condensate having a functionality of equal or above 2; the at least one aromatic compound (ii) is furfuryl alcohol or benzyl alcohol, which reacts with about 60% or more of the -N=C=O groups of the at least one di- or poly-isocyanate (i); and the further reactant (iii) is N-methyl diethanolamine (NMDEA), which reacts with about 10% of the -N=C=O groups of the at least one di- or poly-isocyanate (i), or 2,2,6,6-tetramethylpiperidine (TMP), which reacts with about 30% of the -N=C=O groups of the at least one di- or poly-isocyanate (i). A durable water-repellence (DWR) system, comprising:
(a) at least one non-fluorinated water-repellent compound; and
(b) at least one compound according to any of claims 1 to 10. The DWR system according to claim 11 , wherein the at least one water-repellent compound (a) is selected from the group consisting of polyurethane, acrylic copolymer, wax, melamine condensate, silicone repellent, hyperbranched/dendrimeric repellents, and mixtures thereof.
The DWR system according to claim 11 and 12, wherein the ratio of the at least one non-fluorinated water-repellent compound (a) to compound (b) is from about 90:10 to about 10:90, preferably from about 80:20 to about 20:80, more preferably from about 70:30 to about 30:70, and most preferably from about 60:40 to about 40:60. The DWR system according to any of claims 11 to 13, wherein (a) is a polyurethane, an acrylic copolymer or a mixture thereof, and the ratio of (a) to (b) is from about 5:1 to about 1 :2, preferably from about 3:1 to about 1 :1. The DWR system according to any of claims 11 to 14, further comprising one or more substances selected from the group consisting of additives, solvents and surfactants. Use of the compound according to any of claims 1 to 10 or DWR system according to any of claims 11 to 15 in water-repellent finishing of fibre materials. A process for treating a textile fabric composed of fibre materials, comprising the steps of padding the fabric with the compound according to any one of claims 1 to 10, or the DWR system according to any one of claims 11 to 15, and subsequently drying. The process according to claim 17, further comprising curing, wherein the maximum curing temperature is equal or below 180°C, preferably equal or below 150°C, more preferably equal or below 110°C, even more preferably equal or below 100°C, and most preferably equal or below 80°C. The process according to claim 17 or 18, wherein the fibre material is selected from the group consisting of polyester, polyamide, cotton, blends or variations thereof, preferably polyester or polyamide, or blends or variations thereof. The process according to any of claims 17 to 19, wherein the compound according to any one of claims 1 to 10 is present in a concentration from about 2 to about 20 g/L, preferably from about 5 to 15 g/L, and most preferably about 10 g/L to about 200 g/L, in a pad bath.
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EP2186839A1 (en) * | 2008-11-13 | 2010-05-19 | Bayer MaterialScience AG | Polyurethane dispersions for coating with barrier features |
WO2010115496A1 (en) | 2009-03-28 | 2010-10-14 | Huntsman Textile Effects (Germany) Gmbh | Fluorine-free aqueous dispersion for treating textile fabrics |
WO2011035906A2 (en) | 2009-09-26 | 2011-03-31 | Huntsman Textile Effects (Germany) Gmbh | Composition for oil- and/or water-repellent finishing of fiber materials |
EP3074437B1 (en) * | 2013-11-26 | 2018-01-17 | Rudolf GmbH | Finishing agent with blocked polyisocyanates |
WO2018054712A1 (en) | 2016-09-23 | 2018-03-29 | Huntsman Textile Effects (Germany) Gmbh | Fluorine-free aqueous dispersions for the finishing of textile fabrics |
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2022
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Publication number | Priority date | Publication date | Assignee | Title |
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GB1218670A (en) * | 1967-12-15 | 1971-01-06 | Nat Starch Chem Corp | Carboxamido-aziridine derivatives, their preparation, and their use as water repellency agents |
EP2186839A1 (en) * | 2008-11-13 | 2010-05-19 | Bayer MaterialScience AG | Polyurethane dispersions for coating with barrier features |
WO2010115496A1 (en) | 2009-03-28 | 2010-10-14 | Huntsman Textile Effects (Germany) Gmbh | Fluorine-free aqueous dispersion for treating textile fabrics |
WO2011035906A2 (en) | 2009-09-26 | 2011-03-31 | Huntsman Textile Effects (Germany) Gmbh | Composition for oil- and/or water-repellent finishing of fiber materials |
EP3074437B1 (en) * | 2013-11-26 | 2018-01-17 | Rudolf GmbH | Finishing agent with blocked polyisocyanates |
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