WO2022269096A1 - Procédé d'obtention d'un revêtement - Google Patents
Procédé d'obtention d'un revêtement Download PDFInfo
- Publication number
- WO2022269096A1 WO2022269096A1 PCT/EP2022/067496 EP2022067496W WO2022269096A1 WO 2022269096 A1 WO2022269096 A1 WO 2022269096A1 EP 2022067496 W EP2022067496 W EP 2022067496W WO 2022269096 A1 WO2022269096 A1 WO 2022269096A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- coating
- polyol
- molecule
- smp
- polyisocyanate
- Prior art date
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 117
- 239000011248 coating agent Substances 0.000 title claims abstract description 106
- 238000000034 method Methods 0.000 title claims abstract description 61
- 229920005862 polyol Polymers 0.000 claims abstract description 104
- 150000003077 polyols Chemical class 0.000 claims abstract description 103
- 229920000642 polymer Polymers 0.000 claims abstract description 53
- 229920001228 polyisocyanate Polymers 0.000 claims abstract description 52
- 239000005056 polyisocyanate Substances 0.000 claims abstract description 52
- 239000000758 substrate Substances 0.000 claims abstract description 32
- 125000005372 silanol group Chemical group 0.000 claims abstract description 12
- 150000004756 silanes Chemical class 0.000 claims abstract description 10
- 230000003115 biocidal effect Effects 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims description 43
- 230000008569 process Effects 0.000 claims description 33
- 239000011541 reaction mixture Substances 0.000 claims description 26
- 238000005299 abrasion Methods 0.000 claims description 24
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 21
- -1 polyoxyethylene Polymers 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 14
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical group [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 239000000839 emulsion Substances 0.000 claims description 12
- 238000004132 cross linking Methods 0.000 claims description 11
- 239000004814 polyurethane Substances 0.000 claims description 11
- 229920002635 polyurethane Polymers 0.000 claims description 11
- 239000004094 surface-active agent Substances 0.000 claims description 11
- 239000012948 isocyanate Substances 0.000 claims description 10
- 150000002513 isocyanates Chemical class 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 10
- 230000000844 anti-bacterial effect Effects 0.000 claims description 9
- 239000000470 constituent Substances 0.000 claims description 9
- 239000006185 dispersion Substances 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 8
- 229920002457 flexible plastic Polymers 0.000 claims description 8
- 239000012071 phase Substances 0.000 claims description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium group Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 7
- 229940032007 methylethyl ketone Drugs 0.000 claims description 7
- 239000012074 organic phase Substances 0.000 claims description 6
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 claims description 5
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 5
- 239000008346 aqueous phase Substances 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims description 5
- 239000002736 nonionic surfactant Substances 0.000 claims description 5
- 230000003253 viricidal effect Effects 0.000 claims description 5
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 4
- 125000001931 aliphatic group Chemical group 0.000 claims description 4
- 150000005215 alkyl ethers Chemical class 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000000123 paper Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 3
- 150000003973 alkyl amines Chemical class 0.000 claims description 3
- 150000002576 ketones Chemical class 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 229920000570 polyether Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims description 2
- 229910002808 Si–O–Si Inorganic materials 0.000 claims description 2
- 125000005370 alkoxysilyl group Chemical group 0.000 claims description 2
- 235000019270 ammonium chloride Nutrition 0.000 claims description 2
- 230000000840 anti-viral effect Effects 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- 125000002091 cationic group Chemical group 0.000 claims description 2
- 239000003599 detergent Substances 0.000 claims description 2
- XTAKDLWEWPRLGB-UHFFFAOYSA-N dimethyl-octadecyl-(3-trimethoxysilylpropyl)azanium Chemical compound CCCCCCCCCCCCCCCCCC[N+](C)(C)CCC[Si](OC)(OC)OC XTAKDLWEWPRLGB-UHFFFAOYSA-N 0.000 claims description 2
- 229910052731 fluorine Inorganic materials 0.000 claims description 2
- 239000011737 fluorine Substances 0.000 claims description 2
- 150000002367 halogens Chemical group 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 150000004819 silanols Chemical class 0.000 claims description 2
- 230000001747 exhibiting effect Effects 0.000 claims 2
- 238000013019 agitation Methods 0.000 claims 1
- 125000001033 ether group Chemical group 0.000 claims 1
- 230000000855 fungicidal effect Effects 0.000 claims 1
- 125000001183 hydrocarbyl group Chemical group 0.000 claims 1
- 229920001289 polyvinyl ether Polymers 0.000 claims 1
- 239000002023 wood Substances 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 229910008051 Si-OH Inorganic materials 0.000 description 16
- 229910006358 Si—OH Inorganic materials 0.000 description 16
- 238000012360 testing method Methods 0.000 description 16
- 238000009472 formulation Methods 0.000 description 15
- 125000001453 quaternary ammonium group Chemical group 0.000 description 15
- 229920002397 thermoplastic olefin Polymers 0.000 description 12
- 241000894006 Bacteria Species 0.000 description 11
- 150000001412 amines Chemical group 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 239000004971 Cross linker Substances 0.000 description 7
- 239000003960 organic solvent Substances 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- 238000003878 thermal aging Methods 0.000 description 7
- ZPLCXHWYPWVJDL-UHFFFAOYSA-N 4-[(4-hydroxyphenyl)methyl]-1,3-oxazolidin-2-one Chemical compound C1=CC(O)=CC=C1CC1NC(=O)OC1 ZPLCXHWYPWVJDL-UHFFFAOYSA-N 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 238000010348 incorporation Methods 0.000 description 4
- 239000002054 inoculum Substances 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 238000010186 staining Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 241000588724 Escherichia coli Species 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 241000700605 Viruses Species 0.000 description 3
- 230000032683 aging Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 150000001282 organosilanes Chemical group 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 241000191070 Escherichia coli ATCC 8739 Species 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- 241000191967 Staphylococcus aureus Species 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M acrylate group Chemical group C(C=C)(=O)[O-] NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 description 2
- 150000001356 alkyl thiols Chemical class 0.000 description 2
- 239000003242 anti bacterial agent Substances 0.000 description 2
- 230000002051 biphasic effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- HJOVHMDZYOCNQW-UHFFFAOYSA-N isophorone Chemical compound CC1=CC(=O)CC(C)(C)C1 HJOVHMDZYOCNQW-UHFFFAOYSA-N 0.000 description 2
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 2
- 230000020477 pH reduction Effects 0.000 description 2
- 230000002688 persistence Effects 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 229910000077 silane Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- PZJJKWKADRNWSW-UHFFFAOYSA-N trimethoxysilicon Chemical group CO[Si](OC)OC PZJJKWKADRNWSW-UHFFFAOYSA-N 0.000 description 2
- UZVUSORDFOESJG-UHFFFAOYSA-N 2-bromo-3-methyl-6-propan-2-ylphenol Chemical compound CC(C)C1=CC=C(C)C(Br)=C1O UZVUSORDFOESJG-UHFFFAOYSA-N 0.000 description 1
- 241000004176 Alphacoronavirus Species 0.000 description 1
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical group C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 229920001410 Microfiber Polymers 0.000 description 1
- 229920001730 Moisture cure polyurethane Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical compound C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- AIXMJTYHQHQJLU-UHFFFAOYSA-N chembl210858 Chemical compound O1C(CC(=O)OC)CC(C=2C=CC(O)=CC=2)=N1 AIXMJTYHQHQJLU-UHFFFAOYSA-N 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 231100000135 cytotoxicity Toxicity 0.000 description 1
- 230000003013 cytotoxicity Effects 0.000 description 1
- 231100000263 cytotoxicity test Toxicity 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000006355 external stress Effects 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-M hexanoate Chemical compound CCCCCC([O-])=O FUZZWVXGSFPDMH-UHFFFAOYSA-M 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000005453 ketone based solvent Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000005580 one pot reaction Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000012462 polypropylene substrate Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 125000006308 propyl amino group Chemical group 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010517 secondary reaction Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 150000003573 thiols Chemical class 0.000 description 1
- 125000005369 trialkoxysilyl group Chemical group 0.000 description 1
- YUYCVXFAYWRXLS-UHFFFAOYSA-N trimethoxysilane Chemical group CO[SiH](OC)OC YUYCVXFAYWRXLS-UHFFFAOYSA-N 0.000 description 1
- 230000003612 virological effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- C08G18/0804—Manufacture of polymers containing ionic or ionogenic groups
- C08G18/0809—Manufacture of polymers containing ionic or ionogenic groups containing cationic or cationogenic groups
- C08G18/0814—Manufacture of polymers containing ionic or ionogenic groups containing cationic or cationogenic groups containing ammonium groups or groups forming them
-
- 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
- C08G18/0838—Manufacture of polymers in the presence of non-reactive compounds
- C08G18/0842—Manufacture of polymers in the presence of non-reactive compounds in the presence of liquid diluents
- C08G18/0861—Manufacture of polymers in the presence of non-reactive compounds in the presence of liquid diluents in the presence of a dispersing phase for the polymers or a phase dispersed in the polymers
- C08G18/0871—Manufacture of polymers in the presence of non-reactive compounds in the presence of liquid diluents in the presence of a dispersing phase for the polymers or a phase dispersed in the polymers the dispersing or dispersed phase being organic
-
- 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
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/2805—Compounds having only one group containing active hydrogen
- C08G18/288—Compounds containing at least one heteroatom other than oxygen or nitrogen
- C08G18/289—Compounds containing at least one heteroatom other than oxygen or nitrogen containing silicon
-
- 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
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/50—Polyethers having heteroatoms other than oxygen
- C08G18/5003—Polyethers having heteroatoms other than oxygen having halogens
- C08G18/5015—Polyethers having heteroatoms other than oxygen having halogens having fluorine atoms
-
- 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
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/78—Nitrogen
- C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
- C08G18/791—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups
- C08G18/792—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups formed by oligomerisation of aliphatic and/or cycloaliphatic isocyanates or isothiocyanates
-
- 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
-
- 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
- C08G18/8032—Masked aliphatic or cycloaliphatic polyisocyanates not provided for in one single of the groups C08G18/8016 and C08G18/8025
-
- 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
- C08G18/8083—Masked polyisocyanates masked with compounds having only one group containing active hydrogen with compounds containing at least one heteroatom other than oxygen or nitrogen
- C08G18/809—Masked polyisocyanates masked with compounds having only one group containing active hydrogen with compounds containing at least one heteroatom other than oxygen or nitrogen containing silicon
Definitions
- the present invention relates to a process for obtaining a coating with multiple polymeric components.
- the present invention further relates to such a coating where the components are nested.
- the present invention also relates to a method for obtaining a coating on a substrate.
- the present invention finally relates to the use of the coating, in particular to a biocidal and/or durable use.
- a coating created from epoxy resin corresponding to a known thermosetting liquid polymer.
- the epoxy resin When the epoxy resin is cross-linked, often in the presence of a catalyst, it can be shaped according to the needs of the user. For example, it can be smoothed, cut or perforated. It works in liquid form and is applicable in many areas such as jewelry, furniture or even flooring.
- this resin has the disadvantage of requiring several days of drying to be hardened and the hardness depends on the temperature or the time of treatment or the presence of catalysts. Another disadvantage of this resin is that it degrades over time.
- patent US8158191 discloses a two-step process: a first layer of polyurethane is applied to a surface of a polycarbonate or polyamide substrate, then the first layer of polyurethane is applied with a silane-type coating resistant to 'abrasion.
- US4345053 discloses a moisture-curable sealant composition for application to non-porous substrates.
- the sealing composition comprises a silicon-terminated polymer which is obtained by reaction between a polyurethane, polyether or polyethylene prepolymer carrying two OH (or amine) functions with a polyisocyanate. When the polyisocyanate is no longer detectable, an organosilane bearing an isocyanate group is then added. The process is therefore carried out in several stages.
- Patent EP2785801 discloses a process for obtaining a curable film-forming composition applied to the substrate to attenuate the accumulation of ice on the substrate. This composition includes two coats which are ⁇ applied one after the other.
- Patent EP3209739 discloses a composition for obtaining a two-component coating.
- the coating, as produced, does not contain isocyanate which has not reacted during the production process, which is an essential characteristic of this document. Unreacted isocyanates are removed from the mixture by an additional step. Cross-linking is done via epoxy or acrylic residues.
- Patent CN 103 804 613B describes a 4-step synthesis involving temperature variations, the evaporation of solvents and the stopping of certain reactions resulting in an aqueous emulsion of a polyurethane derivafized by silicone groups.
- a hydroxyacrylafe is then reacted with the still free NCO residues and the ⁇ -glycidoxypropylfrimephoxysilane or the g-mercapfopropylfriephoxysilane is then added.
- Deep amines considered antibacterial, are present via the acidification of amine groups; however, these deep amines are not physically separated from the polymer chain, for example by a "spacer" of 8 or more carbon atoms.
- the methods of the prior art are carried out in two or even more stages, each being well controlled.
- Quaternary ammoniums coupled to an aliphatic chain have been used as a bactericidal agent for the development of anfibacterial coating, in particular those in the form of an organosilane, such as 3- ( tri hy d roxysi ly I ) propyldimefhylocfadecyl-ammonium chloride . Indeed, several scientific studies show that quaternary ammoniums prevent the growth of bacteria and certain viruses on solid supports.
- Document EPI 863865 discloses a process for the preparation of a quaternary ammonium antibacterial agent containing silica combined with other polymers.
- Document EP2285857 presents an antibacterial coating in the form of an interconnected polyurethane-silica network with quaternary ammoniums used as an antibacterial agent.
- the process is carried out in two stages, the first stage consists in preparing a polyurethane functionalized by a siloxane function and a second stage where the siloxane functions carried by the polyurethane react with the siloxanes carrying quaternary ammoniums at temperatures between the ambient temperature e ⁇ 100°C.
- the advantage of a two-step process is ⁇ that there is good control of the different reactions, that any excess reagents can be neutralized. Additionally, catalysts or other compounds that are not desired in the coating are easily removed.
- the present invention aims to solve the drawbacks of the state of the art, in particular to provide a process for obtaining an easy, rapid and economical coating, the coating being, or possibly being, biocidal and having mechanical and reinforced chemical.
- the terminology 'one po ⁇ ' in a single container, preferably, means that all the components are ⁇ added substantially at the same time and/or that the various crosslinking reactions occur substantially in same time.
- a first object of the present invention consists of a process for obtaining a coating in which one mixes in a single container: a polyol (or several polyols) in aqueous phase or in an aqueous-organic biphasic system, a aliphatic polyisocyanate (or several polyisocyanates) in organic phase said polyisocyanate being hydrophilic and/or dispersible in an aqueous solution, one (or more) SMP polymer(s) carrying silane groups, said silane groups being hydrolysable to silanol derivatives, and a first molecule comprising (i) a silane derivative hydrolysable into a silanol group and (ii) a residue (eg alkyl amine, alkyl thiol) capable of forming a covalent bond with the polyisocyanate.
- a polyol or several polyols
- a aliphatic polyisocyanate or several polyisocyanates
- this polyol and this polyisocyanate form a first network
- this polyisocyanate and this first molecule form a second network
- this first molecule and this SMP polymer form a third network via their silanol groups.
- Other molecules comprising a silane derivative which can be hydrolyzed into a silanol group e ⁇ an alkyl residue, but devoid of the residue (eg amine, thiol) capable of forming a covalent bond with the polyisocyanate can optionally be incorporated into the reaction mixture.
- This process allows a simplified reaction system, easily applicable to a substrate (glass, metal, paper, ...) which, after polymerization (crosslinking), becomes very resistant.
- this process further comprises the (preliminary) step of adding to the reaction mixture a second molecule comprising a silane derivative e ⁇ further comprising an ammonium group (a quaternary amine don ⁇ one of the derivatives es ⁇ a long-term alkyl chain), this silane derivative being hydrolysable into a silanol group, so that, during the reaction phase, this silanol group of this silane derivative of this second molecule can form an Si-O-Si bond with the silanol group of the first molecule and/or with the silane group of the SMP.
- this polyol in aqueous phase or in the aqueous-organic biphasic system used in this process is cationic or neutral or, in any case, does not have too high a density of negative charges and/or the absence of aggregate between the SMP polymer and the second molecule has been previously tested, as well as the compatibility between the polyol and the second molecule.
- the inventors have noticed that polyols having too high a density of negative charges, for example a polyol of acrylate structure, interacted with ammonium, which negatively affected the reaction.
- a preferred polyol has a weak hydrophilic character.
- a preferred polyol is halogenated (fluorinated), and/or dispersed or emulsified in water.
- a second particularly preferred molecule is dimethyloctadecyl[3(trimethoxysilyl)propyl]ammonium (CAS: 27668-52-6 ) or a similar molecule whose hydrophobic tail, instead of being Cie, is C16 or C17, or even any molecule whose hydrophobic tail is from Ce to Cis.
- the second molecule is soluble before its incorporation into the reaction mixture and does not form aggregates. Indeed, the inventors have noticed that the presence of aggregates of the second molecule, for example when the second molecule is not well dissolved, induces strong heterogeneities for the coating, which reduces its mechanical strength and even the persistence of its biocidal property.
- the second molecule could advantageously be in solution in a C1-C4 alcohol, advantageously in a mixture of this alcohol with an aprotic organic solvent, such as methyl-ethyl-ketone (MEK), tetra hydrofuran (THF) or butyl acetate, despite the presence in the level of the 'one po ⁇ ' reaction mixture with isocyanates, which involves secondary reactions that were considered parasitic.
- MEK methyl-ethyl-ketone
- THF tetra hydrofuran
- butyl acetate butyl acetate
- the inventors have noticed that the incorporation of the second molecule, even dissolved in a C1-C4 alcohol, increases the mechanical properties, including the mechanical resistance of the coating, instead of reduce it.
- polyol should be understood broadly. However, the preferred polyols have neither too high nor too low a content of -OH residues.
- the -OH content of the polyol is preferably measured by acidification with acetic acid, followed by neutralization with KOH.
- Standards such as JIS K 1557-1:2007, ISO 14900:2017 or JIS K 0070-1992 can be used for this purpose ⁇ .
- the polyol gains from being incorporated at a content of between 3 and 20% (weight of the polyol: total weight of the reaction mixture) in the reaction mixture, from preferably between 5 and 15%, more preferably between 8 and 12%, for example about 11% (by weight).
- the polyol content can be expressed relative to the other constituents forming the triple polymeric network.
- the polyol is preferably incorporated at a content of between 25% and 75% (weight of the polyol: weight of all the compounds intended to form the polymer, such as the polyol, the (first , seconds and SMP) molecules having a group having a hydrolyzable function in Si-OH and the polyisocyanate), preferably between 30 and 70%, preferably between 35 and 65%, preferably between 40 and 60%, preferably between 45 and 55%.
- the polyol can be incorporated in contents by weight at the bottom of the ranges mentioned above, for example between 30 and 35% by weight (weight of the polyol: weight of all the compounds intended to form the polymer, such as the polyol, the first molecule, the second molecule (if present), the SMP and the polyisocyanate).
- polystyrene resin The polyol content and the choice of a polyol with a specific -OH value is also advantageously determined by the polyisocyanate content (see below).
- a preferred polyol has one or more halogen residues, preferably fluorine. This also increases the hydrophobic character of the polyol.
- an advantageous polyol has a weak hydrophilic character.
- Preferred structures are chosen from poly ethylene (halogenated, fluorinated) and/or poly-vinyl ethylene (halogenated, fluorinated), for example a polyol whose structure is ⁇ formed by the polymerization between a halogenated (fluorinated) ethylene and a vinyl ether.
- the inventors have noticed that the coatings comprising such low hydrophilic polyols are more resistant to washing.
- the polyol is preferably present in the form of an emulsion, and/or in the form of a dispersion in water. This advantageously allows the incorporation of the polyol, even if it is not very hydrophilic.
- a surfactant which is preferably a nonionic surfactant, such as polyoxyethylene alkyl ethers.
- the aqueous emulsion or dispersion comprising the polyol comprises between 1 e ⁇ 5% of the surfactant (weight of the surfactant weight of the emulsion or of the aqueous dispersion comprising the polyol), more preferably between 2 e ⁇ 3% , or even about 2.5% of the surfactant.
- the aqueous dispersion or emulsion comprising the polyol preferably comprises between 2 and 10% of the surfactant (weight of the surfactant weight of the polyol present in the emulsion or of the aqueous dispersion), more preferably between 3 and 7%, between 4 and 6%, even about 5% of the surfactant.
- the polyisocyanafe is ⁇ added to the reaction mixture at a content by weight (mass) of between 1 and 10%, preferably between 2 and 7%, preferably between 3 and 5%, or even between 4 and 4 7% is ⁇ a relatively 'high' value range, especially for accelerating cross-linking.
- a content by weight (mass) of between 1 and 10%, preferably between 2 and 7%, preferably between 3 and 5%, or even between 4 and 4 7% is ⁇ a relatively 'high' value range, especially for accelerating cross-linking.
- the inventors have found that higher values, for example between 4 and 7% and/or between 3 and 5% (weight of polyisocyanate: weight of reaction mixture) were advantageous when the coating substrate is very flexible, such as a flexible plastic. , such as polyolefin hermoplastics.
- the polyisocyanate is preferably added to the reaction mixture in a content relative to the other constituents forming the triple polymeric network.
- the polyisocyanate is ⁇ preferably incorporated at a content of between 2% and ⁇ 30% (weight of the polyisocyanate: weight of all the compounds intended to form the polymer, such as the polyol, the groups having a hydrolysable function to Si—OH and the polyisocyanate), preferably between 5 and 25%, preferably between 10 and 20%, preferably between 14 and 18%.
- the polyisocyanate when it is desired to accelerate the crosslinking, is ⁇ incorporated in proportions located at the top of the above ranges, for example between 20 and 25%, for example between 21 and 22% (weight of the polyisocyanate : weight of all the compounds intended to form the polymer, such as the polyol, the SMP polymers, the (first e ⁇ seconds) molecules having groups having a hydrolyzable function in Si-OH e ⁇ the polyisocyanate).
- weight of the polyisocyanate weight of all the compounds intended to form the polymer, such as the polyol, the SMP polymers, the (first e ⁇ seconds) molecules having groups having a hydrolyzable function in Si-OH e ⁇ the polyisocyanate.
- a third way of determining the polyisocyanate content is ⁇ to ensure an excess with respect to the -OH functions of the polyol and ⁇ to the functions being likely to react with the polyisocyanate carried by the molecules having derivatives Si hydrolyzable in Si-OH, in particular the first molecule.
- a preferred polyisocyanate has an NCO content (% by mass) between 15 and 20 (% by mass), preferably between 16 and 19.5 (% by mass), preferably between 17 and 19 (% by mass) .
- the NCO content (% by mass) is advantageously determined according to standard ISO 1 1909 (2007).
- the total content of isocyanate residues (NCO) present on the polyisocya notes is ⁇ higher by 5, 10, 15, 20, 25, 30, 40, 50, or even up to 100% (preferably up to 90%, 80%, 70%, 60%) relative to the total content in the mixture of —OH residues present on the polyol(s).
- An excess of isocyanate residues of 50 to 100% relative to the content of -OH residues present on the polyol is preferred.
- an excess of 100%, or even 200% with respect to the content of —OH residues present on the polyol is ⁇ preferred.
- Excess is preferably meant the number of isocyanate equivalents carried by the polyisocyanate (or by the polyisocyanates if a mixture is ⁇ used) which is ⁇ greater than the number of -OH equivalents carried by the polyol (or the polyols if a mixture of polyols is ⁇ used).
- the isocyanate residues in fact also react with the first molecule, and the inventors have even noticed a faster reaction with the first molecule (especially when it comprises an amine function capable of reacting with an isocyanate) than with the functions - OH of the polyol, even halogenated, which partly explains the excess compared to the -OH equivalents of the polyol.
- Such an excess can ⁇ be at least 20, 25, 30, 35, 40, 45, 40, 55, 60, or even 65% (-NCO equivalents: sum of the -OH equivalents of the polyol, or polyols e ⁇ reaction equivalents (amine) of the first molecule), but preferably less than 100%, less than 90%, less than 80% or less than 70% (-NCO equivalents: sum of the -OH equivalents of the polyol, or polyols e ⁇ of the reaction equivalents of the first molecule).
- the polyisocyanate(s) are ⁇ (its ⁇ ) hydrophilic and/or dispersible in an aqueous solution, which means preferably that, in the reaction mixture which comprises water and ⁇ an organic solvent, the polyisocyanate being completely soluble or forming aggregates only of sizes (diameter) of less than 1 miti, preferably less than 500 nm, preferably less than 300 nm.
- the term “diameter” preferably means the equivalent diameter of the particle, that is to say that the volume of the particle is to that of a sphere of the same volume.
- the absence of aggregates, or at least the absence of aggregates with a diameter greater than 1 miti (or 300 nm) allows thin, resistant and transparent coatings.
- the organic solvent is also advantageously chosen according to the size of the isocyanate aggregates.
- acetone is not a good solvent from this point of view.
- Ketone solvents are preferred, although acetone is less preferred as a solvent than other ketones.
- the first e ⁇ second molecules carrying a hydrolyzable group in Si-OH have ⁇ , preferably, a mass lower than 10000 Da, preferably a mass of less than 5000 Da, preferably less than 1000 Da, or even less than 500 Da and even (slightly) less than 200 Da (first molecule only) or 400 Da (second molecule).
- the molecules carrying a hydrolyzable group in Si—OH have less than 5 hydrolyzable residues in Si—OH per molecule, preferably less than 4, exactly 3, less than 3, or a single Si—OH residue.
- the content of SMP polymer is not taken into account.
- the first molecule is a tri alkyloxysilyl amine, preferably an alkyl amine, or an alkyl thiol, of tri alkyloxysilyl, such as 3 (trimethoxysilyl)-propylamine (CAS Number 13822-56-5 ).
- the above methoxy groups can be substituted by other alkoxy groups (eg ethoxy).
- first and second molecules bearing a hydrolysable group to Si—OH are preferably incorporated into the reaction mixture at a content of between 2% and 20% (weight of the first and second molecules at hydrolyzable group to Si—OH: weight of the reaction mixture), preferably between 3% and 15%, preferably between 4% and 10%, such as between 5% and 7%.
- these first and second molecules carrying a hydrolyzable group in Si—OH are incorporated in a content relative to the other constituents forming the triple polymeric network.
- this (these) molecule(s) comprising an Si is (are) preferably incorporated at a content of between 4% and 50% (weight of the first and second molecule: weight of all the compounds intended to form the polymer, such as the polyol, the groups having a hydrolyzable function in Si-OH and the polyisocyanate), preferably between 7 and 40%, preferably between 10 and 35% , preferably between 13 and 30%, preferably between 15 and 25%, or even between 16 and 20%.
- the SMP polymers, first and (optionally) second molecules are ⁇ preferably incorporated in contents which ensure a Si content in the coating of between 0.5 and 10% (weight of Si: weight of the coating), preferably between 1 to 7% (Si weight: coating weight), such as between 1.5% and 6% (Si weight: coating weight), preferably between 2% and 5% (weight of Si: coating weight).
- molecule bearing a hydrolysable group in Si-OH is preferably meant an organosilane (therefore an Si-C- bond) having at least one Si-O-R bond(s), preferably the 3 remaining bonds, wherein R is ⁇ an organic compound, preferably methyl or ethyl.
- a particularly preferred molecule carrying a hydrolysable group to Si—OH contains a trimethoxysilyl group.
- Such a group Si-OR, Si(OR)3, trimethoxysilyl, etc.
- the first and second molecules both comprise a trialkoxysilyl group (preferably trimethoxysilyl or triethoxysilyl), the fourth bond preferably being an alkane, for the first molecule, in C I -C ⁇ , preferably in C3 , derivatized with a primary terminal amine (therefore for example a propylamine group), e ⁇ a Cs-Cis alkane, derivatized with a quaternary amine for the second molecule.
- the SMP polymer is ⁇ advantageously derivatized with one or more trialkoxysilyl-propylcarbamate.
- the mass ratio between the first molecule and the SMP polymer is between 2 and 20%, preferably between 5 and 15%, of preferably between 8 and 12% (weight of the first molecule: sum of the weight of the first molecule e ⁇ of the SMP polymer).
- the SMP polymer is ⁇ preferably incorporated into the reaction mixture at a content (by weight, mass) of between 1.5 and 10%, preferably between 2 and 5%, preferably between 3 and 4%.
- the SMP polymer is preferably added to the reaction mixture in a content relative to the other constituents forming the triple polymeric network.
- the SMP polymer is preferably incorporated at a content of between 2% and 30% (weight of the SMP polymer: weight of all the compounds intended to form the polymer, such as the polyol , the groups having a function that can be hydrolyzed to Si—OH and the polyisocyanate), preferably between 5 and 25%, preferably between 10 and 20%, preferably between 13 and 17%. Proportions at the top of the ranges mentioned above are possible and sometimes advantageous, for example between 17 (or 18%) and 30%, or even between 20 and 28%.
- a preferred SMP polymer is a polyester, polyether or polyurethane, preferably polyurethane.
- a preferred SMP polymer in the context of the present invention, has a molecular mass between 1000 and 10000 g/mole, preferably between 2000 and 5000 g/mole.
- an SMP polymer is derivatized by hydrolysable silane groups to silanol only at the ends.
- silane groups hydrolysable into silanol at the level of the SMP polymer, for example a silane group every 500, every 1000, every 1500, every 2000, or even every 2500 Da of polymer chain .
- the invention could have been designed without the SMP polymer, for example by adapting the amounts of polyol, polyisocyanate and first and second molecule, the inventors noticed that such formulations resulted in a less homogeneous coating, in particular when the second molecule es ⁇ is present, which reduces the mechanical resistance of the e ⁇ coating or its biocidal properties (bactericidal, virucidal).
- the content of the first molecule can ⁇ be calculated according to the content of SMP polymers ef/or the content of isocyanates ef/or (indirectly) according to the content of polyols and/or according to the content of second molecule, or even the total Si content of the coating (see above).
- the first molecule is preferably incorporated at a mass content of between 1 and 5%, preferably between 1.5 and 4%, for example between 1.6 and 2.5%, preferably between 1 7% and 2% (weight of the first molecule: sum of the weights of the components forming the coating, the polyol, the polyisocyanate, the first molecule, the second molecule if present, the SMP polymer), or according to a preferred alternative between 3 and 3.3% (weight of the first molecule: sum of the weights of the components forming the coating, the polyol, the polyisocyanate, the first molecule, the second molecule if present, the SMP polymer).
- a first molecule mass content of between 3 and 3.5% is advantageous (in synergy with high polyisocyanate content).
- a mass content between 1.6 and 2.5%, preferably between 1.7% and 2% is preferred.
- a surfactant preferably a non-ionic surfactant such as a polyoxyethylene alkyl ether (or a mixture of polyoxyethylene alkyl ethers) is added to the reaction mixture (or forms part of the reaction mixture; for example, the polyol in the presence of this surfactant is in dispersion or in emulsion in an aqueous phase).
- a surfactant is 2 to 10% based on the weight of the polyol, preferably 3 to 7%.
- the organic phase for the SMP polymer and/or for the polyisocyanate and/or, optionally for the two-phase system of the polyol and/or for the first molecule and/or for the second molecule es ⁇ a ketone derivative liquid at room temperature e ⁇ partially soluble in water, preferably methyl-efhyl-cefone (MEK).
- MEK methyl-efhyl-cefone
- the aqueous component is more abundant (weight of aqueous component: weight of all solvents) than the organic component.
- the relative contents of water and of organic solvent are such that the mixture of the solvents results in the formation of a single phase, and not of a two-phase water:organic solvent system.
- an organic solvent in water very preferably has sufficient solubility in water.
- a very preferred organic solvent ensures that the isocyanate remains soluble in the reaction mixture or, at the very least, forms aggregates only of small size (diameter ⁇ 1 miti, even ⁇ 300 nm ).
- reaction mixture preferably, between 50 and 85% of the reaction mixture is made up of solvents (weight of solvents: total weight of the reaction mixture), preferably between 60%, or even 70% and 80%.
- a reaction mixture that is too concentrated has the disadvantage of not allowing a totally transparent coating and also of being incompatible with thin coatings.
- this advantageously makes it possible to obtain a reaction mixture having a viscosity of between 20 and 500 mPa.s (25° C.), preferably between 50 and 100 mPa.s.
- a viscosity of between 20 and 500 mPa.s (25° C.), preferably between 50 and 100 mPa.s.
- These ranges of viscosity values are advantageous in particular when the application of the coating is done by rollers (eg wallpaper, textiles): a mixture that is too low in viscosity or, above all, too viscous is difficult to apply.
- a related aspect of the present invention relates to the coating obtainable by the above process.
- this coating has a thickness of between 1 and 40 miti, preferably between 2 and 20 miti, more particularly between 5 and 10 miti.
- this coating has an abrasion resistance of 100, preferably 1000, cycles using a linear abrasive 2803 with a weight of 100 grams and a speed of 50 cycles/minute, in a humid environment, in which the resistance is advantageously understood as a persistence of the coloring after immersion of the coating in a bromothymol blue solution.
- this coating allows a reduction of bacteria, Staphylococcus aureus ATCC 6538 (Sa) ef / or Escherichia coli ATCC 8739 (Ec), of more than 99%, preferably of more than 99.9%, of preferably more than 99.99%, after one hour of contact ef/or after 24 hours of contact, in which, preferably, between 10000 and 1000000 bacteria (Sa or Ec) are inoculated per cm 2 of surface, per example a PVC, covered or not by the coating according to the present invention.
- Another related aspect of the present invention is a method of applying this coating to a substrate comprising the following steps:
- Drying preferably at room temperature, preferably between 15 and 35°C, for a predetermined time interval, preferably between 30 minutes and 48 hours, preferably between 4 and 24 hours, more particularly between 8 and 12 hours.
- This method is advantageous, in particular when the substrate is a flexible plastic, such as a thermoplastic polyolefin (TPO), said method comprising incorporating the first molecule at a mass content of at least 2% (weight of the first molecule, sum of the weights of the constituents of the coating: polyol, first, second molecule, SMP polymer, polyisocyanate) and/or the polyisocyanate at a mass content of at least 20% (weight of the polyisocyanate, sum of the weights of the constituents of the coating : polyol, first, second molecule, SMP polymer, polyisocyanate).
- TPO thermoplastic polyolefin
- said method comprises a step of crosslinking the coating after application to its substrate, said crosslinking being carried out at a temperature between 60°C e ⁇ 100°C, preferably at around 80°C (e.g. for 10 to 30 minutes), or “flash” curing at a temperature of around 180°C (eg between 150°C and 200°C) for 20 seconds to 2 minutes, preferably between 30 and 60 seconds.
- a temperature between 60°C e ⁇ 100°C preferably at around 80°C (e.g. for 10 to 30 minutes)
- flash curing at a temperature of around 180°C (eg between 150°C and 200°C) for 20 seconds to 2 minutes, preferably between 30 and 60 seconds.
- This method is also advantageous in particular when the substrate is the wallpaper, preferably the coating being applied to the wallpaper so as to ensure a thickness of between about 4 and 5 microns.
- Said method when the substrate is ⁇ wallpaper, then advantageously comprising the addition of a mafifian ⁇ agent to the reaction mixture, preferably in a component comprising the polyol (eg 0.5 to 1% by weight relative to the weight
- the matifian ⁇ agent is ⁇ a powder whose particles have ⁇ a maximum diameter less than 80%, preferably less than 70% of the thickness of the coating applied to the substrate and/or in which the diameter particles of the matifian ⁇ agent are ⁇ between 2 and 3 microns.
- the matifian ⁇ agent is ⁇ of the organic type and/or not negatively charged.
- the inventors have noticed that the matifianf agents of the (eg no silica particles) disperse well in the reaction mixture (eg the component comprising the polyol) and that this mixture remains stable over time.
- the inventors have noticed that the absence of negative charges allows avoid interactions with positively charged groups ent, such as quaternary ammonium, which led to an increase in the viscosity of the mixture, which could be problematic.
- Another aspect of the present invention relates to the use of the coating described above to increase the mechanical strength of a substrate, such as plastic, glass, paper, paint or metal.
- a substrate such as plastic, glass, paper, paint or metal.
- Figure 1 tes ⁇ of abrasion resistance of a wallpaper.
- Figure 2 tes ⁇ of resistance to abrasion of a gyproc.
- Figure 3 comparison of the abrasion resistance of two coatings made from different polyols, on the left a coating with a polyol resin based on polyacrylafe and on the right a coating with a resin based on fluoroéfhylene-vinyléfher.
- Figure 4 comparison of 3 coatings applied to a soft plastic, then subjected to a thermal aging test ⁇ .
- Figure 5 Comparison of 3 coatings applied to wallpaper.
- Example 1 One-pof process for obtaining coating
- the mixture containing a first component being a fluoro-polyol in emulsion in water (approximately 48.5% by mass of the polyol, 2.5% by mass of non-ionic surfactant (see above), 49% by mass of water; 22g of the emulsion has been added), the particles have a diameter of between 0.1 and 0.2 mih.
- a first component being a fluoro-polyol in emulsion in water
- the particles have a diameter of between 0.1 and 0.2 mih.
- a second component comprising 8 g of methyl ethyl ketone (MEK);
- an SMP being a polyurethane functionalized with trimethoxysilane functions (contains between 5 and 10% of methoxy functions);
- a third component comprising 3 g of MEK and 4 g of aliphatic polyisocyanate having an NCO content of approximately 18% measured according to method Ml 05-ISO 1 1909.
- the molecular mass is approximately 230.
- the final coating has very good abrasion resistance (no trace of scrafch after the abrasion test) and anfibacterial activity (determined according to the ISO 22196 standard).
- the inventors have tested other polyols with good results. However, the use of a halogenated polyol made it possible to increase the mechanical resistance of the coating (see below). On the other hand, other polyols that are too strongly anionic, where OH groups have been grafted to a polyacrylate type structure, have caused interference when the silane having a quaternary ammonium was added. Other SMPs can be used, however, when quaternary ammonium is present in the mixture, there is a risk of formation of aggregates. Thus, the usable SMPs benefit from being tested beforehand.
- the antibacterial activity of the coating deposited on PVC is determined according to the ISO 22196 standard.
- the two strains of bacteria were cultured up to an OD of 0.88 for E. coli 8739 and 0.53 for S. aureus and diluted respectively 200 times and 50 times in order to obtain approximately 5*10 5 bacteria/ml for the starting inoculum. This inoculum was evaluated and it was approximately 2*10 6 for E. coli and 4*10 6 for S. aureus. Each surface was inoculated with 800mI of the starting inoculum. These surfaces are ⁇ placed in a humid atmosphere in an oven at 37°C to be incubated for 1 hour or 24 hours.
- the inoculum from these surfaces is recovered in 20 ml of LB500.
- the bacteria present in this solution are ⁇ listed by dilutions of 100 to 10 5 by spreading 3 times 10mI per Petri dish.
- the biocidal coating according to the invention provides the same efficacy as the AgOX control, with reductions of 5 to 7 Logl 0 , as shown below or Table 1, even after only 1 hour of contact.
- Example 3
- the coating was used to test for possible virucidal activity against Coronavirus hCOV-229E, a virus from the same family as SARS-Covidl 9, according to ISO 21702.
- a cytotoxicity test ⁇ was performed using MRC5 cells (ATCC CCL-171) and the inventors did not observe any cytotoxicity associated with the coating of the invention.
- the abrasion resistance test ⁇ is carried out using a 2803 linear abrader with a weight of 100 g and a speed of 50 cycles/minutes.
- a microfiber cloth is ⁇ glued to the axis of the abraser.
- Abrasion is ⁇ carried out in a humid environment (permanent presence of water on the surface of the coating).
- Figure 1 shows the 4 conditions, wallpaper without coating or with e ⁇ coating without or after 1000 abrasion cycles. We immediately notice that the uncovered wallpaper is ⁇ damaged by the abrasive treatment, unlike wallpaper which has been covered.
- Figure 2 shows similar results: untreated Gyproc is damaged by the abrasive treatment, unlike treated Gyproc.
- the same formulation described in example 1 was deposited on a wooden substrate, on a polypropylene substrate and on a PVC substrate.
- the coating described in Example 1 and deposited on the various substrates has a very high resistance to abrasion. After 1000 abrasion cycles with a weight of 100g, the coating shows no visible degradation. These are ⁇ severe aging conditions.
- the inventors used the gyproc-acrylic plates + coating of the example above (before and after abrasion test).
- the coating has a durability greater than 1000 abrasion cycles, including for its biocidal properties.
- example 1 A mixture similar to that of example 1 was produced, except that the nature of the polyol was modified, ef it is now an acrylafe (-OH value between 48 and 50). In parallel, example 1 was reproduced.
- the upperparts are ⁇ intensely colored blue.
- the coloration of the lower part is ⁇ strongly affected when the polyol is ⁇ hydrophilic (here, an acrylate) and ⁇ remains intense when the polyol halogenated (less hydrophilic) is ⁇ used to form the coating.
- the area of discoloration at the bottom of the left part of Figure 3 which clearly shows that the area where the abrasion was carried out is ⁇ discolored: in the left part of Figure 3, the center of the area of the bottom is discolored, showing that the abrasion has strongly altered the coating, unlike the right part, where the color intensity of the lower section is ⁇ identical to that of the upper section.
- the thermal aging (at high temperatures > 100° C.) of the coatings applied to flexible plastic surfaces of the TPO type can cause the coating to diffuse into the flexible surface.
- the formulation of the 3-component coating was adapted by the inventors to ensure a permanent presence of the coating on the flexible surface after thermal aging.
- the inventors have compared different ratios between the 2 cross-linkers and the quaternary ammonium in the bu ⁇ to improve the thermal resistance of the coating applied to TPO:
- Crosslinker 1 Silane-amine present in component B (second component of example 1)
- Crosslinker 2 polyisocyanate present in component C (third component of example 1)
- QATs the quaternary ammonium silane present in component B.
- Other molecules forming a silica network could have been incorporated, but this one is advantageous for its antibacterial and antiviral properties (when it is correctly incorporated into the coating)
- the 3 formulations were deposited on TPO surfaces by spraying (deposit between 3 to 5 g of dry matter per m 2 of TPO surface).
- the three deposits were cross-linked by baking at 80°C/15 minutes.
- Thermal aging consists of putting the TPO surfaces + coatings in an oven at 120°C for 500 hours.
- the bromothymol blue staining test ⁇ shows better thermal stability of the coating of formulation III with a stronger presence of the two cross-linkers compared to the QATs. Indeed, the bromothymol blue staining of the first two formulations is ⁇ almost completely lost after thermal ageing, whereas it is almost entirely preserved for the third formulation.
- the increase in the crosslinking density makes it possible to maintain the presence of the QATs after thermal aging.
- matifian ⁇ agent On matte surfaces, such as wallpaper, the addition of matifian ⁇ agent to the formulation is often preferred, so as not to modify the tint of the wallpaper (color and gloss).
- a matifian ⁇ agent of the neutral polyimide particle type with a size between 2 to 3 microns is ⁇ added to component 1 (Polyol-fluorinated in aqueous emulsion) with a mass percentage between 0.5 to 1%.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Dispersion Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Paints Or Removers (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
Description
Claims
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EP22738611.7A EP4359456A1 (fr) | 2021-06-25 | 2022-06-27 | Procédé d'obtention d'un revêtement |
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BE2021/5498 | 2021-06-25 |
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Citations (9)
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US4345053A (en) | 1981-07-17 | 1982-08-17 | Essex Chemical Corp. | Silicon-terminated polyurethane polymer |
EP1863865A1 (fr) | 2005-03-22 | 2007-12-12 | Biosafe Inc. | Procede de creation d'un agent antimicrobien a base d'ammonium quaternaire contenant du silicium, polymere, sans solvant, presentant des proprietes antimicrobiennes prolongees superieures |
JP2009084319A (ja) * | 2007-09-27 | 2009-04-23 | Fujifilm Corp | 親水性樹脂組成物及びそれを用いた親水性部材 |
EP2285857A1 (fr) | 2008-05-29 | 2011-02-23 | Basf Se | Composition antimicrobienne contenant des agents antimicrobiens liés de façon covalente à un réseau interconnecté de polyuréthane-silice |
US8158191B2 (en) | 2004-10-12 | 2012-04-17 | Sdc Coatings, Inc. | Coating compositions, articles, and methods of coating articles |
CN102505491A (zh) * | 2011-11-01 | 2012-06-20 | 吴江市北厍盛源纺织品助剂厂 | 聚氨酯改性有机硅抗菌型助剂的合成方法 |
CN103804613A (zh) | 2014-02-20 | 2014-05-21 | 江西省科学院应用化学研究所 | 一种有机硅改性阳离子水性聚氨酯抗菌乳液的制备方法 |
EP2785801A1 (fr) | 2011-12-02 | 2014-10-08 | PPG Industries Ohio Inc. | Procédé d'atténuation de l'accumulation de glace sur un substrat |
EP3209739A1 (fr) | 2014-10-22 | 2017-08-30 | The Government of the United States of America as represented by the Secretary of the Navy | Revêtements à base de siloxane en deux composants contenant des polymères à liaisons urée et terminaisons alcoxysilane |
-
2021
- 2021-06-25 BE BE20215498A patent/BE1029530B1/fr active IP Right Grant
-
2022
- 2022-06-27 EP EP22738611.7A patent/EP4359456A1/fr active Pending
- 2022-06-27 WO PCT/EP2022/067496 patent/WO2022269096A1/fr active Application Filing
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4345053A (en) | 1981-07-17 | 1982-08-17 | Essex Chemical Corp. | Silicon-terminated polyurethane polymer |
US8158191B2 (en) | 2004-10-12 | 2012-04-17 | Sdc Coatings, Inc. | Coating compositions, articles, and methods of coating articles |
EP1863865A1 (fr) | 2005-03-22 | 2007-12-12 | Biosafe Inc. | Procede de creation d'un agent antimicrobien a base d'ammonium quaternaire contenant du silicium, polymere, sans solvant, presentant des proprietes antimicrobiennes prolongees superieures |
JP2009084319A (ja) * | 2007-09-27 | 2009-04-23 | Fujifilm Corp | 親水性樹脂組成物及びそれを用いた親水性部材 |
EP2285857A1 (fr) | 2008-05-29 | 2011-02-23 | Basf Se | Composition antimicrobienne contenant des agents antimicrobiens liés de façon covalente à un réseau interconnecté de polyuréthane-silice |
CN102505491A (zh) * | 2011-11-01 | 2012-06-20 | 吴江市北厍盛源纺织品助剂厂 | 聚氨酯改性有机硅抗菌型助剂的合成方法 |
EP2785801A1 (fr) | 2011-12-02 | 2014-10-08 | PPG Industries Ohio Inc. | Procédé d'atténuation de l'accumulation de glace sur un substrat |
CN103804613A (zh) | 2014-02-20 | 2014-05-21 | 江西省科学院应用化学研究所 | 一种有机硅改性阳离子水性聚氨酯抗菌乳液的制备方法 |
CN103804613B (zh) * | 2014-02-20 | 2015-11-18 | 江西省科学院应用化学研究所 | 一种有机硅改性阳离子水性聚氨酯抗菌乳液的制备方法 |
EP3209739A1 (fr) | 2014-10-22 | 2017-08-30 | The Government of the United States of America as represented by the Secretary of the Navy | Revêtements à base de siloxane en deux composants contenant des polymères à liaisons urée et terminaisons alcoxysilane |
Also Published As
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EP4359456A1 (fr) | 2024-05-01 |
BE1029530A1 (fr) | 2023-01-25 |
BE1029530B1 (fr) | 2023-01-30 |
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