WO2000049119A1 - Utilisation de dispersions filmogenes de dioxyde de titane pour le nettoyage et la desinfection des surfaces, dispersions filmogenes de dioxyde de titane - Google Patents
Utilisation de dispersions filmogenes de dioxyde de titane pour le nettoyage et la desinfection des surfaces, dispersions filmogenes de dioxyde de titane Download PDFInfo
- Publication number
- WO2000049119A1 WO2000049119A1 PCT/FR2000/000371 FR0000371W WO0049119A1 WO 2000049119 A1 WO2000049119 A1 WO 2000049119A1 FR 0000371 W FR0000371 W FR 0000371W WO 0049119 A1 WO0049119 A1 WO 0049119A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- dispersion
- titanium dioxide
- film
- acrylamide
- water
- Prior art date
Links
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 152
- 239000006185 dispersion Substances 0.000 title claims abstract description 92
- 239000004408 titanium dioxide Substances 0.000 title claims abstract description 70
- 238000004140 cleaning Methods 0.000 title claims abstract description 15
- 230000000249 desinfective effect Effects 0.000 title claims abstract description 13
- 229920000642 polymer Polymers 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000009835 boiling Methods 0.000 claims abstract description 13
- 238000001035 drying Methods 0.000 claims abstract description 12
- 238000000151 deposition Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 7
- 239000000178 monomer Substances 0.000 claims description 43
- 239000002245 particle Substances 0.000 claims description 31
- -1 polydimethylsiloxanes Polymers 0.000 claims description 30
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 27
- 125000002091 cationic group Chemical group 0.000 claims description 26
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 23
- 229920001577 copolymer Polymers 0.000 claims description 23
- 239000000203 mixture Substances 0.000 claims description 22
- GQOKIYDTHHZSCJ-UHFFFAOYSA-M dimethyl-bis(prop-2-enyl)azanium;chloride Chemical compound [Cl-].C=CC[N+](C)(C)CC=C GQOKIYDTHHZSCJ-UHFFFAOYSA-M 0.000 claims description 21
- 239000005630 Diquat Substances 0.000 claims description 18
- SYJFEGQWDCRVNX-UHFFFAOYSA-N diquat Chemical compound C1=CC=[N+]2CC[N+]3=CC=CC=C3C2=C1 SYJFEGQWDCRVNX-UHFFFAOYSA-N 0.000 claims description 18
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 16
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 16
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 15
- 125000000129 anionic group Chemical group 0.000 claims description 14
- 229920001519 homopolymer Polymers 0.000 claims description 14
- UZNHKBFIBYXPDV-UHFFFAOYSA-N trimethyl-[3-(2-methylprop-2-enoylamino)propyl]azanium;chloride Chemical compound [Cl-].CC(=C)C(=O)NCCC[N+](C)(C)C UZNHKBFIBYXPDV-UHFFFAOYSA-N 0.000 claims description 14
- JKNCOURZONDCGV-UHFFFAOYSA-N 2-(dimethylamino)ethyl 2-methylprop-2-enoate Chemical compound CN(C)CCOC(=O)C(C)=C JKNCOURZONDCGV-UHFFFAOYSA-N 0.000 claims description 13
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 claims description 12
- 150000003839 salts Chemical class 0.000 claims description 12
- 150000002734 metacrylic acid derivatives Chemical class 0.000 claims description 11
- JZMJDSHXVKJFKW-UHFFFAOYSA-M methyl sulfate(1-) Chemical compound COS([O-])(=O)=O JZMJDSHXVKJFKW-UHFFFAOYSA-M 0.000 claims description 10
- NLVXSWCKKBEXTG-UHFFFAOYSA-N vinylsulfonic acid Chemical compound OS(=O)(=O)C=C NLVXSWCKKBEXTG-UHFFFAOYSA-N 0.000 claims description 10
- 239000000654 additive Substances 0.000 claims description 9
- 229920006317 cationic polymer Polymers 0.000 claims description 9
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 9
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 claims description 8
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 claims description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 7
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 claims description 6
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 6
- QNILTEGFHQSKFF-UHFFFAOYSA-N n-propan-2-ylprop-2-enamide Chemical compound CC(C)NC(=O)C=C QNILTEGFHQSKFF-UHFFFAOYSA-N 0.000 claims description 6
- 125000005375 organosiloxane group Chemical group 0.000 claims description 6
- 229920001634 Copolyester Polymers 0.000 claims description 5
- 125000000217 alkyl group Chemical group 0.000 claims description 5
- 230000003385 bacteriostatic effect Effects 0.000 claims description 5
- 229940088644 n,n-dimethylacrylamide Drugs 0.000 claims description 5
- YLGYACDQVQQZSW-UHFFFAOYSA-N n,n-dimethylprop-2-enamide Chemical compound CN(C)C(=O)C=C YLGYACDQVQQZSW-UHFFFAOYSA-N 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 229920002601 oligoester Polymers 0.000 claims description 5
- 125000001453 quaternary ammonium group Chemical group 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 4
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 claims description 4
- 239000002202 Polyethylene glycol Substances 0.000 claims description 4
- 125000001931 aliphatic group Chemical group 0.000 claims description 4
- 229920001223 polyethylene glycol Polymers 0.000 claims description 4
- XIUCEANTZSXBQQ-UHFFFAOYSA-N (3-chloro-2-hydroxypropyl)-trimethylazanium Chemical compound C[N+](C)(C)CC(O)CCl XIUCEANTZSXBQQ-UHFFFAOYSA-N 0.000 claims description 3
- STVDIZSDTABYLF-UHFFFAOYSA-N 2-[hydroxy(prop-2-enoyl)amino]acetic acid Chemical compound OC(=O)CN(O)C(=O)C=C STVDIZSDTABYLF-UHFFFAOYSA-N 0.000 claims description 3
- SZAXDKXHDBPOJW-UHFFFAOYSA-M 2-ethenyl-1-ethylpyridin-1-ium;bromide Chemical compound [Br-].CC[N+]1=CC=CC=C1C=C SZAXDKXHDBPOJW-UHFFFAOYSA-M 0.000 claims description 3
- AGBXYHCHUYARJY-UHFFFAOYSA-N 2-phenylethenesulfonic acid Chemical class OS(=O)(=O)C=CC1=CC=CC=C1 AGBXYHCHUYARJY-UHFFFAOYSA-N 0.000 claims description 3
- NYUTUWAFOUJLKI-UHFFFAOYSA-N 3-prop-2-enoyloxypropane-1-sulfonic acid Chemical compound OS(=O)(=O)CCCOC(=O)C=C NYUTUWAFOUJLKI-UHFFFAOYSA-N 0.000 claims description 3
- FLCAEMBIQVZWIF-UHFFFAOYSA-N 6-(dimethylamino)-2-methylhex-2-enamide Chemical compound CN(C)CCCC=C(C)C(N)=O FLCAEMBIQVZWIF-UHFFFAOYSA-N 0.000 claims description 3
- MOLSQELXOJIIKB-UHFFFAOYSA-N Cl.CN(C)CCCC=C(C)C(N)=O Chemical compound Cl.CN(C)CCCC=C(C)C(N)=O MOLSQELXOJIIKB-UHFFFAOYSA-N 0.000 claims description 3
- QNAYBMKLOCPYGJ-REOHCLBHSA-N L-alanine Chemical compound C[C@H](N)C(O)=O QNAYBMKLOCPYGJ-REOHCLBHSA-N 0.000 claims description 3
- 235000004279 alanine Nutrition 0.000 claims description 3
- 150000001298 alcohols Chemical class 0.000 claims description 3
- 150000008064 anhydrides Chemical class 0.000 claims description 3
- 235000013870 dimethyl polysiloxane Nutrition 0.000 claims description 3
- 125000002768 hydroxyalkyl group Chemical group 0.000 claims description 3
- LVHBHZANLOWSRM-UHFFFAOYSA-N itaconic acid Chemical class OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 claims description 3
- 125000005395 methacrylic acid group Chemical group 0.000 claims description 3
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 3
- 238000004659 sterilization and disinfection Methods 0.000 claims description 3
- RRHXZLALVWBDKH-UHFFFAOYSA-M trimethyl-[2-(2-methylprop-2-enoyloxy)ethyl]azanium;chloride Chemical compound [Cl-].CC(=C)C(=O)OCC[N+](C)(C)C RRHXZLALVWBDKH-UHFFFAOYSA-M 0.000 claims description 3
- OEIXGLMQZVLOQX-UHFFFAOYSA-N trimethyl-[3-(prop-2-enoylamino)propyl]azanium;chloride Chemical compound [Cl-].C[N+](C)(C)CCCNC(=O)C=C OEIXGLMQZVLOQX-UHFFFAOYSA-N 0.000 claims description 3
- ZTWTYVWXUKTLCP-UHFFFAOYSA-N vinylphosphonic acid Chemical compound OP(O)(=O)C=C ZTWTYVWXUKTLCP-UHFFFAOYSA-N 0.000 claims description 3
- WCCVMVPVUAVUFI-UHFFFAOYSA-N 2-methylprop-2-enamide;hydrochloride Chemical compound Cl.CC(=C)C(N)=O WCCVMVPVUAVUFI-UHFFFAOYSA-N 0.000 claims description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 claims description 2
- 230000000996 additive effect Effects 0.000 claims description 2
- FZGFBJMPSHGTRQ-UHFFFAOYSA-M trimethyl(2-prop-2-enoyloxyethyl)azanium;chloride Chemical compound [Cl-].C[N+](C)(C)CCOC(=O)C=C FZGFBJMPSHGTRQ-UHFFFAOYSA-M 0.000 claims description 2
- 229920002126 Acrylic acid copolymer Polymers 0.000 claims 8
- 229920006322 acrylamide copolymer Polymers 0.000 claims 6
- 239000002253 acid Substances 0.000 claims 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 claims 2
- 229920003145 methacrylic acid copolymer Polymers 0.000 claims 2
- 229940117841 methacrylic acid copolymer Drugs 0.000 claims 2
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 claims 1
- VRUCNCADOJQBHN-UHFFFAOYSA-N 2-methylprop-2-enamide Chemical compound CC(=C)C(N)=O.CC(=C)C(N)=O VRUCNCADOJQBHN-UHFFFAOYSA-N 0.000 claims 1
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 claims 1
- HKMUDAWTNXZJJO-UHFFFAOYSA-N n-methylprop-2-enamide;2-methylprop-2-enamide Chemical compound CNC(=O)C=C.CC(=C)C(N)=O HKMUDAWTNXZJJO-UHFFFAOYSA-N 0.000 claims 1
- AIUAMYPYEUQVEM-UHFFFAOYSA-N trimethyl(2-prop-2-enoyloxyethyl)azanium Chemical compound C[N+](C)(C)CCOC(=O)C=C AIUAMYPYEUQVEM-UHFFFAOYSA-N 0.000 claims 1
- 239000002105 nanoparticle Substances 0.000 abstract description 10
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 abstract description 2
- 229920000728 polyester Polymers 0.000 description 9
- OVSKIKFHRZPJSS-UHFFFAOYSA-N 2,4-D Chemical compound OC(=O)COC1=CC=C(Cl)C=C1Cl OVSKIKFHRZPJSS-UHFFFAOYSA-N 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000003139 biocide Substances 0.000 description 6
- XTUSEBKMEQERQV-UHFFFAOYSA-N propan-2-ol;hydrate Chemical compound O.CC(C)O XTUSEBKMEQERQV-UHFFFAOYSA-N 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 4
- 235000021355 Stearic acid Nutrition 0.000 description 4
- 230000003373 anti-fouling effect Effects 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 4
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 description 4
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 4
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 4
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 4
- 239000008117 stearic acid Substances 0.000 description 4
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 229920000620 organic polymer Polymers 0.000 description 3
- SFHBJXIEBWOOFA-UHFFFAOYSA-N 5-methyl-3,6-dioxabicyclo[6.2.2]dodeca-1(10),8,11-triene-2,7-dione Chemical compound O=C1OC(C)COC(=O)C2=CC=C1C=C2 SFHBJXIEBWOOFA-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 2
- 229920000691 Poly[bis(2-chloroethyl) ether-alt-1,3-bis[3-(dimethylamino)propyl]urea] Polymers 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 125000005250 alkyl acrylate group Chemical group 0.000 description 2
- 230000003115 biocidal effect Effects 0.000 description 2
- 150000002009 diols Chemical class 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000005227 gel permeation chromatography Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- KNZGECOKJOJOSP-UHFFFAOYSA-N 1,4-dimethoxy-1,4-dioxobutane-2-sulfonic acid Chemical compound COC(=O)CC(S(O)(=O)=O)C(=O)OC KNZGECOKJOJOSP-UHFFFAOYSA-N 0.000 description 1
- QOVUSIZUVWPIAP-UHFFFAOYSA-N 2,6-bis(methoxycarbonyl)benzenesulfonic acid Chemical compound COC(=O)C1=CC=CC(C(=O)OC)=C1S(O)(=O)=O QOVUSIZUVWPIAP-UHFFFAOYSA-N 0.000 description 1
- YZTJKOLMWJNVFH-UHFFFAOYSA-N 2-sulfobenzene-1,3-dicarboxylic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1S(O)(=O)=O YZTJKOLMWJNVFH-UHFFFAOYSA-N 0.000 description 1
- LLLVZDVNHNWSDS-UHFFFAOYSA-N 4-methylidene-3,5-dioxabicyclo[5.2.2]undeca-1(9),7,10-triene-2,6-dione Chemical compound C1(C2=CC=C(C(=O)OC(=C)O1)C=C2)=O LLLVZDVNHNWSDS-UHFFFAOYSA-N 0.000 description 1
- GHXZTYHSJHQHIJ-UHFFFAOYSA-N Chlorhexidine Chemical compound C=1C=C(Cl)C=CC=1NC(N)=NC(N)=NCCCCCCN=C(N)N=C(N)NC1=CC=C(Cl)C=C1 GHXZTYHSJHQHIJ-UHFFFAOYSA-N 0.000 description 1
- RVGRUAULSDPKGF-UHFFFAOYSA-N Poloxamer Chemical compound C1CO1.CC1CO1 RVGRUAULSDPKGF-UHFFFAOYSA-N 0.000 description 1
- 241000589517 Pseudomonas aeruginosa Species 0.000 description 1
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical class OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- 230000002730 additional effect Effects 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 229940045714 alkyl sulfonate alkylating agent Drugs 0.000 description 1
- 150000008052 alkyl sulfonates Chemical class 0.000 description 1
- 150000004808 allyl alcohols Chemical class 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000002280 amphoteric surfactant Substances 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000002519 antifouling agent Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229960003260 chlorhexidine Drugs 0.000 description 1
- DIKRGVZWFUYZSF-UHFFFAOYSA-N chloromethane;2-methylprop-2-enamide Chemical compound ClC.CC(=C)C(N)=O DIKRGVZWFUYZSF-UHFFFAOYSA-N 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 125000005442 diisocyanate group Chemical group 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 150000002333 glycines Chemical class 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical class Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 238000000399 optical microscopy Methods 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002304 perfume Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 238000006277 sulfonation reaction Methods 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- 238000004627 transmission electron microscopy Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/23—Solid substances, e.g. granules, powders, blocks, tablets
- A61L2/232—Solid substances, e.g. granules, powders, blocks, tablets layered or coated
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/16—Heavy metals; Compounds thereof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
- Y10S430/148—Light sensitive titanium compound containing
Definitions
- the subject of the present invention is the use of a film-forming dispersion of titanium dioxide nanoparticles for cleaning and / or disinfecting surfaces exposed to light.
- the subject of the invention is also a method of cleaning and / or disinfecting surfaces exposed to light by depositing a film of titanium dioxide nanoparticles on said surfaces, as well as dispersions of titanium dioxide nanoparticles, the filmogenicity of which is improved by the presence of a film-forming polymer.
- titanium dioxide nanoparticles as a bactericidal and photo-oxidizing agent in detergent compositions for washing clothes or surfaces has been described by the Applicant in its French patent application No. 95 00821 of January 25, 1996.
- the Applicant has found that the dispersions of titanium dioxide nanoparticles are film-forming.
- the object of the present invention is to use the photo-oxidative properties of titanium dioxide nanoparticles, as well as their film-forming nature to clean and / or disinfect the surfaces on said surfaces, of a non-permanent film of titanium dioxide capable of generate free radicals disinfecting surfaces and oxidizing dirt.
- a non-permanent film of titanium dioxide capable of generate free radicals disinfecting surfaces and oxidizing dirt.
- the film formed is then gradually removed by the following cleaning steps.
- the target areas of application can be very varied, such as cleaning or disinfecting hard surfaces encountered in the food industry, kitchens, bathrooms, sanitary, hospitals, windows, facades ..., as well as degradation and / or the elimination of heavy hydrocarbons deposited on surfaces, in particular following accidental pollution (for example beaches, rocks, equipment, plants, etc.).
- a first object of the invention consists in the use of a dispersion of titanium dioxide, for cleaning and / or disinfecting surfaces exposed to light, by depositing a film of titanium dioxide on said surfaces, said titanium dioxide being in the form of elementary particles of size less than 100 nm, of preferably less than 70 nm, and with a specific surface greater than 150 rtfVg, preferably greater than 200 m 2 / g, the continuous phase of said dispersion comprising water and / or at least one alcohol with a boiling point less than 120 ° C, preferably less than or equal to 100 ° C, said dispersion having, when it comprises water, a pH different by at least 1 unit, preferably by at least 2 units, from the value of isoelectric point of titanium dioxide in said dispersion.
- the pH of the dispersion comprising water is of course the pH of the continuous phase.
- the titanium dioxide used is very particularly in the form of elementary particles with a size of the order of 20 to 60 nm and a specific surface of the order of 200 to 300 m 2 / g.
- BET surface is understood to mean the specific surface determined by nitrogen adsorption in accordance with standard ASTM D 3663-78 established on the basis of the BRUNAUER - EMMETT - TELLER method described in the periodical "The Journal of the American Society", 60, 309 (1938).
- the size of the elementary particles of titanium dioxide according to the invention is measured by transmission electron microscopy (TEM).
- the nature of the elementary particles of titanium dioxide is preferably the anatase (isoelectric point between 5.5 and 6 for pure anatase). Within said dispersion, said elementary particles can be present both in the form of aggregates and of elementary particles.
- said dispersion may comprise of the order of 0.01 to 15% of its weight, preferably of the order of 0.1 to 10% of its weight of titanium dioxide.
- alcohols which may constitute or be present in the continuous phase, there may be mentioned in particular aliphatic monoalcohols with a boiling point below 100 ° C. such as ethanol, isopropanol, etc.
- the continuous phase consists of a water / alcohol (s) mixture with a boiling point below 120 ° C.
- the ratio between the water and the alcohol (s) may be arbitrary.
- An alcohol with a higher boiling point (in particular a diol such as ethylene glycol) may however be present in the continuous phase, but this may not represent more than 10% of the weight of said phase.
- the continuous phase comprises water, preferably from 50 to 100%, preferably from 70 to 99.9% of its weight of water.
- the pH values favorable to a good implementation of the invention can range from 0 to 14, preferably from 2 to 14 and are function of other additives possibly present in the dispersion and capable of modifying the isoelectric point of titanium dioxide.
- the pH values favorable to a good implementation of the invention are situated below 4 or beyond 8; preferably, the pH of the dispersion can range from 0 to 3 approximately or from 9 to 14 approximately.
- pH regulators may be present; we can mention mineral or organic acids such as hydrochloric, nitric, sulfuric, phosphoric, citric, glutaric, adipic, succinic ..., bases such as ammonia, alkali metal hydroxides, sodium carbonate, triethanolamine ...
- Said dispersion may also contain other additives which are soluble or dispersible in the continuous phase, additives which can promote its stability, its wettability, increase its film-forming character, its biocidal character or provide other additional properties.
- non-ionic surfactants promoting wettability, of the polyoxyethylenated C6-C12 alkylphenols type, polyoxyethylenated and / or polyoxypropylene aliphatic C8-C22 alcohols, block copolymers of ethylene oxide - propylene oxide, optionally polyoxyethylene carboxylic amides. ..,
- anionic or amphoteric surfactants as dispersants, agents of the alkali metal soap type (alkali salts of C8-C24 fatty acids), alkali sulfonates (C8-C13 alkylbenzene sulfonates, C12-C16 alkylsulfonates), fatty alcohols CQ- C-
- biocides or bacteriostats capable of improving the biocidal nature of the dispersions, in particular in the event of insufficient light, such as cationic surfactants (alkyldimethylammonium halides, etc.), biocides, quaternary ammonium or phosphonium halides, amphoteric biocides derivatives of glycines, phenolic biocides, biocides derived from chlorhexidine, hypochlorites, biocides or film-forming polymers, quaternary polyammonium ...
- cationic surfactants alkyldimethylammonium halides, etc.
- biocides quaternary ammonium or phosphonium halides
- amphoteric biocides derivatives of glycines phenolic biocides
- biocides derived from chlorhexidine, hypochlorites biocides or film-forming polymers
- - film-forming anti-fouling agents such as terephthalic polyesters which may be sulfonated ...
- a particular embodiment of the invention consists in improving the film-forming character of the titanium dioxide nanoparticles by the presence within the dispersion of at least one organic polymer or organosiloxane of film-forming character which can furthermore provide one or more properties ( s) additional to said dispersion.
- the amount of polymer that can be present can represent of the order of 0.005 to 15%, preferably of the order of 0.01 to 10% of the weight of said dispersion.
- organic film-forming polymers or organosiloxanes which can be used, there may be mentioned very particularly:
- polyester copolymers based on ethylene terephthalate and / or propylene terephthalate and polyoxyethylene terephthalate units (US-A-3,959,230, US-A-3,893,929, US-A-4,116,896, US-A-4,702,857 , US-A-4,770,666); . sulfonated polyester oligomers obtained by sulfonation of an oligomer derived from ethoxylated allyl alcohol, dimethyl terephthalate and 1,2 propylene diol (US-A-4,968,451)
- polyester copolymers based on propylene terephthalate and polyoxyethylene terephthalate units and terminated by ethyl or methyl units (US-A-4,711,730) or polyester oligomers terminated by alkylpolyethoxy groups (US-A-4,702,857) anionic sulfopolyethoxy (US-A-4,721,580), sulfoaroyl (US-A-4,877,896)
- polyesters-polyurethanes obtained by reaction of a polyester obtained from adipic acid and / or terephthalic acid and / or sulfoisophthalic acid and a diol, on a prepolymer with terminal isocyanate groups obtained from a polyoxyethylene glycol and a diisocyanate (FR-A-2 334 698)
- polyester oligomers obtained by condensation of isophthalic acid, of dimethyl sulfosuccinate and of diethylene glycol (FR-A-2 236 926).
- quaternary ammonium ionenes described in US-A-4, 157,388 (MIRAPOL A-15 or POLYQUATERNIUM-2 from Rhodia)
- polyoxyalkylene film-forming polymers carrying anionic functions such as copolymers of acrylic acid and / or methacrylic acid and polyethylene glycol acrylate and / or methacrylate, the polyoxyethylene unit of which has a mass of the order of 500 to 10,000
- polyalkoxylated polydimethylsiloxanes providing shine and oleophobia such as SILICONE COPOLYOL 10646 from Rhodia - other film-forming polymers derived from ethylenically unsaturated monomers which can be polymerized by the radical route, such as (meth) acrylic acid, (C1) alkyl acrylates- C4, styrene, butadiene ...
- a particularly advantageous embodiment of the invention consists in the use of dispersions of titanium dioxide further comprising a film-forming organic polymer, preferably hydrophilic, capable of interacting with the surface of the particles of titanium dioxide, preferably by electrostatic connection.
- Said dispersions are preferably aqueous and have a pH of the order of 4 to 9.
- films-forming organic polymer can contain of the order of 0.005 to 10%, preferably 0.01 to 5%, very particularly 0.01 to 2% by weight of film-forming organic polymer.
- film-forming polymers there may be mentioned:
- polyoxyalkylene film-forming polymers carrying anionic functions such as copolymers of acrylic acid and / or methacrylic acid and polyethylene glycol acrylate and / or methacrylate, the polyoxyethylene unit of which has a mass of the order of 500 to 10,000
- cationic film-forming homopolymers or copolymers derived from cationic ethylenically unsaturated monomers mention may be made of those derived from at least one of the following cationic monomers
- aminoacryloyl or acryloyloxy monomers such as trimethylaminopropylmethacrylate chloride, trimethylaminoethylacrylamide or methacrylamide chloride or bromide, trimethylaminobutylacrylamide or methacrylamide methyl chloride, trimethylaminopropylmethacrylamethylmethylacrymethylchloride ), (3-acrylamidopropyl) trimethylammonium chloride (APTAC), methacryloyloxyethyl trimethylammonium chloride or methyl sulfate, acryloyloxyethyl trimethylammonium chloride; * * 1-ethyl 2-vinylpyridinium bromide, chloride or methyl sulfate;
- N, N-dialkyldiallylamine monomers such as N, N-dimethyldiallylammonium chloride (DADMAC);
- polyquaternary monomers such as dimethylaminopropylmethacrylamide chloride, N- (3-chloro-2-hydroxypropyl) trimethylammonium (DIQUAT) ...; optionally mixed with at least one nonionic monomer such as acrylamide, N-isopropylacrylamide, N, N-dimethyiacrylamide, dimethylaminoethylmethacrylate (DMAEMA), dimethylaminopropylmethacrylamide, vinyl alcohol, alkyl acrylates or methacrylates or hydroxyalkyl, polyoxyalkylene glycol acrylates or methacrylates ...
- nonionic monomer such as acrylamide, N-isopropylacrylamide, N, N-dimethyiacrylamide, dimethylaminoethylmethacrylate (DMAEMA), dimethylaminopropylmethacrylamide, vinyl alcohol, alkyl acrylates or methacrylates or hydroxyalkyl, polyoxyalkylene glycol
- amphoteric film-forming copolymers derived from cationic ethylenically unsaturated monomers mention may be made of those derived from at least one of the cationic monomers mentioned above and from at least one anionic monomer as
- MAPTAC acrylic or methacrylic acid
- DIQUAT acrylic or methacrylic acid
- DADMAC acrylic or methacrylic acid
- Said cationic or amphoteric film-forming homopolymers or copolymers derived from cationic ethylenically unsaturated monomers preferably have a molecular mass of less than 100,000 (molecular weight by weight, expressed in g / mol, which can be determined by aqueous gel permeation chromatography
- a second subject of the invention consists of a film-forming dispersion comprising
- the continuous phase of said dispersion comprising water and / or at least one alcohol with a boiling point of less than 120 ° C, preferably less than or equal to 100 ° C and having, when it includes water, a pH different from at least 1 unit, preferably at least 2 units, of the isoelectric point value of titanium dioxide in said dispersion.
- a pH different from at least 1 unit, preferably at least 2 units, of the isoelectric point value of titanium dioxide in said dispersion Preferential or more specific characteristics as to the nature of the titanium dioxide, of the continuous phase, of the pH regulators, of the other additives possibly present and of the respective amounts of the various components have already been mentioned above. Examples of organic film-forming polymers or alkoxylated organosiloxanes which can be used to improve the film-forming character of titanium nanoparticles have already been mentioned above.
- Said dispersion can be obtained by mixing its various components at room temperature.
- the continuous phase of said dispersion comprising water and / or at least one alcohol with a boiling point below 120 ° C, preferably less than or equal to 100 ° C and having, when it includes water, a pH different by at least 1 unit, preferably by at least 2 units, from the value of the isoelectric point of the titanium dioxide in said dispersion.
- They are preferably aqueous and have a pH of the order of 4 to 9.
- organic film-forming polymers which can be used to interact with the surface of the titanium dioxide particles, preferably by electrostatic bonding, have already been mentioned above.
- a final object of the invention consists of a method of cleaning and / or disinfecting the surfaces exposed to light, by depositing and then drying on said surfaces a film-forming dispersion of titanium dioxide, said titanium dioxide being in the form of elementary particles of size less than 100 nm, preferably less than 70 nm, and of specific surface greater than 150 m 2 / g, preferably greater than 200 m 2 / g, the continuous phase of said dispersion comprising water and / or at least one alcohol with a boiling point of less than 120 ° C, preferably less than or equal to 100 ° C, said dispersion having, when it comprises water, a pH different from at least 1 unit, preferably at least 2 units, the value of the isoelectric point of the titanium dioxide in the dispersion.
- the dispersion of titanium dioxide nanoparticles can be deposited on the surfaces by fine spraying on the surface to be treated, by application using a sponge, a mop or using a prepreg cellulosic material, or any other means, so as to deposit on the order of 0.01 to 10 g of titanium dioxide per m 2 of surface to be treated, preferably on the order of 0.05 to 5 g of titanium dioxide per m 2 of surface to be treated.
- a dispersion of titanium dioxide is prepared in the form of elementary particles of 40 nm and a specific surface of 250 m 2 / g after drying at 200 ° C. in a water / alcohol mixture, the composition of which is as follows
- a dispersion of titanium dioxide is prepared in the form of elementary particles of 40 nm and a specific surface of 250 m 2 / g after drying at 200 ° C. in a water / alcohol mixture, the composition of which is as follows
- a dispersion of titanium dioxide is prepared in the form of elementary particles of 40 nm and a specific surface of 250 m 2 / g after drying at 200 ° C. in a water / alcohol mixture, the composition of which is as follows
- a dispersion of titanium dioxide is prepared in the form of elementary particles of 40 nm and a specific surface of 250 m 2 / g after drying at 200 ° C. in a water / alcohol mixture, the composition of which is as follows
- Example 5 by introducing the film-forming polymer (providing gloss and oleophobia) into the colloidal aqueous dispersion of titanium dioxide, followed by the addition of the water-isopropanol mixture, then adjustment of the pH to 2.5.
- the film-forming polymer providing gloss and oleophobia
- a dispersion of titanium dioxide is prepared in the form of elementary particles of 40 nm and a specific surface of 250 m 2 / g after drying at 200 ° C. in a water / alcohol mixture, the composition of which is as follows
- a dispersion of titanium dioxide is prepared in the form of elementary particles of 40 nm and a specific surface of 250 m 2 / g after drying at 200 ° C. in a water / alcohol mixture, the composition of which is as follows
- test A In the presence of cationic polymer (test A) the dispersion remains homogeneous and the measurement of the particle size by laser diffusion confirms the absence of aggregation of titanium oxide (particle size: 40 nm).
- test B In the case of the solution without cationic polymer, (test B) a strong precipitation is observed during the addition of sodium hydroxide.
- the two neutralized solutions A and B are deposited on a black ceramic tile, using an adsorbent paper.
- the quantity deposited is of the order of 0.5 mg / cm 2 .
- solution A gives a layer of titanium invisible to the eye.
- solution B gives very clear white traces.
- a model stain, stearic acid is then deposited on each ceramic tile, having been previously treated with formulas A or B.
- the layer of stearic acid is approximately 0.01 mg / m 2 and it is obtained by depositing a 1% solution in isopropanol After drying, the tiles are exposed to visible light for 48 hours.
- the ceramic tile treated with solution A shows almost no trace of stearic acid visible to the eye.
- the tile treated with solution B shows visible traces of stearic acid.
- a film corresponding to 3 or 6 g of titanium dioxide per m 2 of tile surface is formed on a ceramic tile, by spreading, using a film puller, the dispersion of Example 2 over said tile.
- the film is left to dry in ambient air overnight.
- a suspension of bacteria (Pseudomonas Aeruginosa) is deposited on the entire surface of the tile.
- the tile covered by a cover which is not UV-impermeable (to avoid excessive dehydration of the bacteria), is exposed to UV light (365 nm) for 6 hours.
- the number of colonies is counted and compared to that obtained by depositing the same suspension of bacteria on an untreated tile.
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Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU26773/00A AU2677300A (en) | 1999-02-17 | 2000-02-15 | Use of film-forming titanium dioxide dispersions for cleaning and disinfecting surfaces, film-forming titanium dioxide dispersions |
| EP00905137A EP1151068A1 (fr) | 1999-02-17 | 2000-02-15 | Utilisation de dispersions filmogenes de dioxyde de titane pour le nettoyage et la desinfection des surfaces, dispersions filmogenes de dioxyde de titane |
| US09/890,944 US6905814B1 (en) | 1999-02-17 | 2000-02-15 | Use of film-forming titanium dioxide dispersions for cleaning and disinfecting surfaces, film-forming titanium dioxide dispersions |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR99/01938 | 1999-02-17 | ||
| FR9901938A FR2789591B1 (fr) | 1999-02-17 | 1999-02-17 | Utilisation de dispersions filmogenes de dioxyde de titane pour la desinfection des surfaces dures, dispersions filmogenes de dioxyde de titane et procede de desinfection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2000049119A1 true WO2000049119A1 (fr) | 2000-08-24 |
Family
ID=9542147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2000/000371 WO2000049119A1 (fr) | 1999-02-17 | 2000-02-15 | Utilisation de dispersions filmogenes de dioxyde de titane pour le nettoyage et la desinfection des surfaces, dispersions filmogenes de dioxyde de titane |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6905814B1 (fr) |
| EP (1) | EP1151068A1 (fr) |
| AU (1) | AU2677300A (fr) |
| FR (1) | FR2789591B1 (fr) |
| WO (1) | WO2000049119A1 (fr) |
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-
1999
- 1999-02-17 FR FR9901938A patent/FR2789591B1/fr not_active Expired - Fee Related
-
2000
- 2000-02-15 EP EP00905137A patent/EP1151068A1/fr not_active Ceased
- 2000-02-15 US US09/890,944 patent/US6905814B1/en not_active Expired - Fee Related
- 2000-02-15 WO PCT/FR2000/000371 patent/WO2000049119A1/fr not_active Application Discontinuation
- 2000-02-15 AU AU26773/00A patent/AU2677300A/en not_active Abandoned
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2729673A1 (fr) * | 1995-01-25 | 1996-07-26 | Rhone Poulenc Chimie | Composition detergente contenant du dioxyde de titane a fonction bactericide et photo-oxydante |
| CA2260803A1 (fr) * | 1996-07-19 | 1998-01-29 | Toto Ltd. | Composition de revetement hydrophile photocatalytique |
| EP0857770A2 (fr) * | 1997-02-06 | 1998-08-12 | Shin-Etsu Chemical Co., Ltd. | Compositions de revêtement, films hydrophiles et articles revêtus d'un film hydrophile |
| FR2766494A1 (fr) * | 1997-07-22 | 1999-01-29 | Rhodia Chimie Sa | Dispersion de particules de titane comprenant un liant a base d'un polyorganosiloxane |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8172951B2 (en) | 2000-12-21 | 2012-05-08 | Massholder Karl F | Method of cleaning with an aqueous composition containing a semiconductor |
| FR2887448A1 (fr) * | 2005-06-23 | 2006-12-29 | Rhodia Chimie Sa | Composition cosmetique comprenant un copolymere ampholyte |
| WO2006136730A3 (fr) * | 2005-06-23 | 2007-03-08 | Rhodia Chimie Sa | Composition cosmetique comprenant un copolymere ampholyte |
| CN101247785B (zh) * | 2005-06-23 | 2013-04-24 | 罗地亚化学公司 | 包含两性共聚物的化妆品组合物 |
| JP2009525246A (ja) * | 2006-02-01 | 2009-07-09 | コロロッビア イタリア ソシエタ ペル アチオニ | ナノ粒子の形態のTiO2の水性分散液の製造方法、及びこの方法で得られる分散体 |
| US20200405894A1 (en) * | 2016-10-18 | 2020-12-31 | PurWorld Technologies LLC | System and method for reinsurance of air purification |
| US11819580B2 (en) * | 2016-10-18 | 2023-11-21 | PurWorld Technologies LLC | Method of chemically disinfecting a vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2789591A1 (fr) | 2000-08-18 |
| US6905814B1 (en) | 2005-06-14 |
| AU2677300A (en) | 2000-09-04 |
| EP1151068A1 (fr) | 2001-11-07 |
| FR2789591B1 (fr) | 2002-10-04 |
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