WO1997048927A1 - Cleaning composition, method and apparatus for cleaning exterior windows - Google Patents
Cleaning composition, method and apparatus for cleaning exterior windows Download PDFInfo
- Publication number
- WO1997048927A1 WO1997048927A1 PCT/US1997/012596 US9712596W WO9748927A1 WO 1997048927 A1 WO1997048927 A1 WO 1997048927A1 US 9712596 W US9712596 W US 9712596W WO 9748927 A1 WO9748927 A1 WO 9748927A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- water
- weight
- cleaning composition
- spray gun
- passage
- Prior art date
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 107
- 239000000203 mixture Substances 0.000 title claims abstract description 99
- 238000000034 method Methods 0.000 title claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 121
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000007921 spray Substances 0.000 claims abstract description 41
- 239000003456 ion exchange resin Substances 0.000 claims abstract description 40
- 229920003303 ion-exchange polymer Polymers 0.000 claims abstract description 40
- 238000005507 spraying Methods 0.000 claims abstract description 10
- 239000004094 surface-active agent Substances 0.000 claims description 37
- 239000011521 glass Substances 0.000 claims description 28
- 150000001298 alcohols Chemical class 0.000 claims description 22
- 239000007788 liquid Substances 0.000 claims description 19
- 239000003093 cationic surfactant Substances 0.000 claims description 15
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 14
- 239000003599 detergent Substances 0.000 claims description 14
- RYCLIXPGLDDLTM-UHFFFAOYSA-J tetrapotassium;phosphonato phosphate Chemical compound [K+].[K+].[K+].[K+].[O-]P([O-])(=O)OP([O-])([O-])=O RYCLIXPGLDDLTM-UHFFFAOYSA-J 0.000 claims description 14
- 239000011347 resin Substances 0.000 claims description 13
- 229920005989 resin Polymers 0.000 claims description 13
- UEUXEKPTXMALOB-UHFFFAOYSA-J tetrasodium;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxylatomethyl)amino]acetate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O UEUXEKPTXMALOB-UHFFFAOYSA-J 0.000 claims description 13
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- 125000002091 cationic group Chemical group 0.000 claims description 7
- 239000008213 purified water Substances 0.000 claims description 7
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 7
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 6
- 125000004432 carbon atom Chemical group C* 0.000 claims description 6
- 239000007822 coupling agent Substances 0.000 claims description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 239000011324 bead Substances 0.000 claims description 5
- 239000008188 pellet Substances 0.000 claims description 5
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 4
- 239000003112 inhibitor Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 239000003957 anion exchange resin Substances 0.000 claims 1
- 238000000746 purification Methods 0.000 claims 1
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 12
- QUCDWLYKDRVKMI-UHFFFAOYSA-M sodium;3,4-dimethylbenzenesulfonate Chemical compound [Na+].CC1=CC=C(S([O-])(=O)=O)C=C1C QUCDWLYKDRVKMI-UHFFFAOYSA-M 0.000 description 10
- 239000002245 particle Substances 0.000 description 9
- 238000005192 partition Methods 0.000 description 9
- 229940048842 sodium xylenesulfonate Drugs 0.000 description 9
- 125000000129 anionic group Chemical group 0.000 description 7
- 239000008233 hard water Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 238000005342 ion exchange Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000005201 scrubbing Methods 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 239000004902 Softening Agent Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000003945 anionic surfactant Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 210000003608 fece Anatomy 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000002736 nonionic surfactant Substances 0.000 description 2
- 235000021317 phosphate Nutrition 0.000 description 2
- 229920001467 poly(styrenesulfonates) Polymers 0.000 description 2
- LWIHDJKSTIGBAC-UHFFFAOYSA-K potassium phosphate Substances [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 2
- 159000000001 potassium salts Chemical class 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- KEZYHIPQRGTUDU-UHFFFAOYSA-N 2-[dithiocarboxy(methyl)amino]acetic acid Chemical compound SC(=S)N(C)CC(O)=O KEZYHIPQRGTUDU-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical class OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- 239000004135 Bone phosphate Substances 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- OCUCCJIRFHNWBP-IYEMJOQQSA-L Copper gluconate Chemical class [Cu+2].OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O.OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O OCUCCJIRFHNWBP-IYEMJOQQSA-L 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000004471 Glycine Substances 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 229920000388 Polyphosphate Polymers 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241000364021 Tulsa Species 0.000 description 1
- GPTXEUANTKYEHV-UHFFFAOYSA-N [acetyloxy-[2-(diacetyloxyamino)ethyl]amino] acetate;sodium Chemical compound [Na].[Na].[Na].[Na].CC(=O)ON(OC(C)=O)CCN(OC(C)=O)OC(C)=O GPTXEUANTKYEHV-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000008051 alkyl sulfates Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- GRKUXCWELVWVMZ-UHFFFAOYSA-N amino acetate Chemical class CC(=O)ON GRKUXCWELVWVMZ-UHFFFAOYSA-N 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 239000000908 ammonium hydroxide Substances 0.000 description 1
- 239000002280 amphoteric surfactant Substances 0.000 description 1
- 238000005349 anion exchange Methods 0.000 description 1
- -1 aromatic sulfonates Chemical class 0.000 description 1
- QTPILKSJIOLICA-UHFFFAOYSA-N bis[hydroxy(phosphonooxy)phosphoryl] hydrogen phosphate Chemical compound OP(O)(=O)OP(O)(=O)OP(O)(=O)OP(O)(=O)OP(O)(O)=O QTPILKSJIOLICA-UHFFFAOYSA-N 0.000 description 1
- 150000001642 boronic acid derivatives Chemical class 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- HJMZMZRCABDKKV-UHFFFAOYSA-N carbonocyanidic acid Chemical class OC(=O)C#N HJMZMZRCABDKKV-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- XPPKVPWEQAFLFU-UHFFFAOYSA-J diphosphate(4-) Chemical compound [O-]P([O-])(=O)OP([O-])([O-])=O XPPKVPWEQAFLFU-UHFFFAOYSA-J 0.000 description 1
- 235000011180 diphosphates Nutrition 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 229940005740 hexametaphosphate Drugs 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 239000003752 hydrotrope Substances 0.000 description 1
- 150000002462 imidazolines Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical class OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920005646 polycarboxylate Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 235000011009 potassium phosphates Nutrition 0.000 description 1
- 150000003856 quaternary ammonium compounds Chemical class 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- DZCAZXAJPZCSCU-UHFFFAOYSA-K sodium nitrilotriacetate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CC([O-])=O DZCAZXAJPZCSCU-UHFFFAOYSA-K 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 235000011008 sodium phosphates Nutrition 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical group [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 235000019832 sodium triphosphate Nutrition 0.000 description 1
- 239000013042 solid detergent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 150000003890 succinate salts Chemical class 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
- FEJQDYXPAQVBCA-UHFFFAOYSA-J tetrasodium;ethane-1,2-diamine;tetraacetate Chemical compound [Na+].[Na+].[Na+].[Na+].CC([O-])=O.CC([O-])=O.CC([O-])=O.CC([O-])=O.NCCN FEJQDYXPAQVBCA-UHFFFAOYSA-J 0.000 description 1
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L1/00—Cleaning windows
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
- B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
- B05B7/244—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using carrying liquid for feeding, e.g. by suction, pressure or dissolution, a carried liquid from the container to the nozzle
- B05B7/2443—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using carrying liquid for feeding, e.g. by suction, pressure or dissolution, a carried liquid from the container to the nozzle the carried liquid and the main stream of carrying liquid being brought together downstream of the container before discharge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor
-
- C11D2111/18—
Definitions
- the present invention relates to a composition and a related method and apparatus for cleaning exterior windows in which the cleaning composition is applied to the surface and then the surface is rinsed with water.
- the '522 patent discloses a non-fogging window cleaner containing 0.1 to 3% of an anti-fogging surfactant mixture including a mixture of a nonionic surface active agent and an anionic or nonionic surfactant.
- the '738 patent discloses an aqueous cleaning composition containing water and a catalytically effective amount of a catalyst, an optional surface active agent with or without a water softening agent.
- the '873 and '828 patents disclose a water based cleaning composition including a major amount of water and a minor amount of a cleaning agent such as ammonium hydroxide or a lower alcohol such as isopranol and a small amount of a polyethylene glycol of high molecular weight and/or a lubricity component.
- the '983 patent discloses an aqueous detergent composition containing zwitterionic and cationic detergent surfactants and solvents and/or buffers. Such cleaning compositions are typically applied to a glass surface and wiped off with an absorbent material or squeegee.
- the residual hard water film or spots tend to form in some cases even if the rinse water has a low degree of hardness depending on factors such as the size, age or condition of the window. For example, very bad filming has been observed when the rinse water has only 35 ppm of CaCO 3 .
- the present invention seeks to overcome that and other drawbacks.
- a first object of the invention is to provide a composition for cleaning exterior windows that is effective in combination with water.
- Another object of the invention is to provide a composition for cleaning exterior windows that is non-toxic to animals and plants.
- Yet another object of the invention is to provide a method for cleaning exterior windows with the composition of the present invention in combination with water.
- Still another object of the invention is to provide a method for cleaning windows located above the ground floor of a structure without having to remove screens and engage in other cumbersome procedures.
- the method can include a rinse step which provides a visual indication of when rinsing is completed due to beading of the rinse water on the glass surface.
- a further object of the invention is to provide a method for cleaning a surface such as glass that requires no wiping.
- Another object of the invention is to provide a method for cleaning a surface such as glass without leaving an undesirable residual hard water film or spotting on the surface.
- the present invention provides a powdered cleamng composition for cleaning a glass surface comprising (i) 15 to 60, preferably 30% by weight of tetrasodium EDTA; (ii) 15 to 60, preferably about 30% by weight of tetrapotassium pyrophosphate; (iii) about 15 to 60, preferably about 30% by weight of sodium carbonate; (iv) 2.5 to 10, preferably about 5% by weight of an ethoxylated alcohol surfactant; and (v) about 2.5 to 10, preferably about 5% by weight of an ethoxylated quaternary surfactant.
- the present invention provides an aqueous cleaning composition for cleaning a glass surface comprising (i) 1 to 10, preferably 2 to 7% by weight on a dry basis of tetrasodium EDTA; (ii) 1 to 20, preferably about 5 to 15% by weight on a dry basis of tetrapotassium pyrophosphate; (iii) about 1 to 10, preferably about 5 to 8% by weight on a dry basis of sodium xylene sulfonate; (iv) 0.1 to 10, preferably about 3 to 7% by weight of at least one ethoxylated alcohol surfactant; (v) at least about 0.1 % of a cationic surfactant, preferably about 0.5 to 3% by weight ethoxylated quaternary surfactant; and (vi) 48 to 97% by weight of water, preferably about 70 to 80% water.
- the present invention provides a method for cleaning a glass surface comprising spraying a cleaning composition mixed with water on the surface; preparing purified rinse water by passing rinse water over an ion exchange resin; and rinsing the surface with the purified rinse water.
- the cleaning composition can be in the form of a highly built liquid, slurry or solid detergent which is mixed with the water and applied to the glass surface as an aqueous solution.
- Figure 1 illustrates a hand held, hose end spray gun that can be used in the method of the invention
- Figure 2 depicts how the spray gun shown in Figure 1 can be used to carry out the method of the invention to clean windows on a building structure;
- Figures 3 a-c illustrate side, top and front views, respectively, of another embodiment of a hand -held, hose end spray gun useful for cleaning and rinsing a surface to be cleaned in accordance with the invention
- Figures 4 a-c illustrate side, top and front views, respectively, of the main body of the spray gun of Figures 3 a-c;
- Figures 5 a-b illustrate a base and a cap of an ion exchange resin cartridge of the spray gun of Figures 3 a-c;
- Figure 6 illustrates an assembly of the base and cap of the cartridge of
- Figures 7 a-c illustrate side, top and front views, respectively, of a spray gun having a modified ion exchange resin cartridge in accordance with the invention
- Figure 8 illustrates an assembly of the base and cap of the cartridge of
- Figures 9 a-b illustrate side and front views, respectively, of a modified spray gun having an ion exchange resin compartment in the main body in accordance with another embodiment of the invention; and Figure 10 illustrates details of the spray gun shown in Figure 1.
- the invention provides an exterior window wash system which can clean outside windows and glass quickly and easily without spotting.
- the invention overcomes disadvantages of the labor intensive method of cleaning windows which requires climbing on ladders, scrubbing and wiping or using a squeegee.
- windows can be cleaned and rinsed with an easy-to- use device.
- the device is capable of removing dirt, smudges, bird droppings and/or hard water spots to leave behind clear, sparkling clean glass.
- the device attaches to a garden hose and the device includes a valve for selective spraying of the cleaning composition or rinse water. With the valve in the "clean" position, water mixes with the cleaning composition inside the sprayer to allow cleaning of windows without scrubbing.
- the cleaning solution can be allowed to remain on the window for a suitable time period but preferably does not dry and can range from 10 seconds to 1 minute. With the valve in the "rinse" position, rinse water passes through the sprayer, is filtered to remove the hardness and/or other residues that causes spotting and/or filming and after rinsing the window, the glass dries to a clean and beautiful finish without the need for wiping or using a squeegee.
- the cleaning composition used according to the present invention can take various forms such as in the form of a liquid, slurry, or solid such as a loose or compacted powder.
- the cleaning composition is a heavily built detergent and preferably contains low foam surfactants.
- the cleaner can include organic and inorganic builders.
- the cleaner be non-hazardous in that it is caustic-free, acid-free and/or solvent-free.
- the detergent include an ingredient which provides a visual indication of when the rinsing step is completed.
- the cleaning composition includes a rinse indicator such as an ethoxylated quaternary surfactant which causes the rinse water to bead up when sufficient rinsing has been completed.
- the cleaning composition can include at least one inorganic builder such as orthophosphates (e.g. , monobasic, dibasic or tribasic phosphates including sodium or potassium salts), polyphosphates (e.g., sodium or potassium phosphates such as tripolyphosphate, pyrophosphate, pentaphosphate, hexametaphosphate, etc.), non-phosphorous alkaline sodium and potassium salts (e.g. , silicates, carbonates, borates, bicarbonates, sesquicarbonates, tetraborates, etc.), or the like.
- a preferred phosphate builder is tetrapotassium pyrophosphate (TKPP).
- the cleaner can include at least one organic builder such as an amino acid type builder (e.g. , amino acetates or nitriloacetates such as ethylenediamine tetraacetic acid (EDTA), tetrasodium EDTA, nitrilotriacetates such as trisodium nitrilotriacetate (NT A), glycinates such as glycine, etc.), carbohydrate type builder (e.g., sugars such as succinates or gluconates, etc.), polycarboxylates (e.g. , polyacrylic acid salts, citric acid, etc.), polyphophonates (e.g., Dequest O 97/48927 PC17US97/12596
- an amino acid type builder e.g. , amino acetates or nitriloacetates such as ethylenediamine tetraacetic acid (EDTA), tetrasodium EDTA, n
- Ethylenediamine tetraacetic acid tetrasodium salt is an especially preferred organic builder.
- EDTA Ethylenediamine tetraacetic acid tetrasodium salt
- Versene 100 is an especially preferred organic builder.
- the foregoing organic builders can be used alone or in combination with or without additional organic builders.
- the cleaner can include at least one surfactant providing wetting and optionally low foaming characteristics such as non-ionic, anionic, cationic and amphoteric surfactants.
- the preferred surfactants are nonionic compounds and in particular a mixture of ethoxylated alcohols has been found to be particularly effective.
- the surfactants can comprise a mixture of alcohols sold by Shell Oil Company under the tradenames Neodol 91-6 and Neodol 91-2.5.
- Neodol 91-6 is a mixture of alcohols containing 9 to 11 carbon atoms with an average of 6 moles of ethylene oxide reacted onto the hydroxyl portion of the alcohols.
- Neodol 91-2.5 is a mixture of alcohols containing 9 to 11 carbon atoms with an average of 2.5 moles of ethylene oxide reacted onto the hydroxyl portion of the alcohols.
- the surfactants can be used alone or in combination.
- Neodol 91-6 and Neodol 91-2.5 are particularly effective when used in combination.
- the cleaning composition can include a coupling agent such as an anionic coupling agent (e.g. , aromatic sulfonates such as sodium xylene sulfonate, sodium alkyl napthnlene sulfonates, phosphate esters, alkyl sulfate, etc.), an amphoteric coupling agent (e.g.
- an anionic coupling agent e.g. , aromatic sulfonates such as sodium xylene sulfonate, sodium alkyl napthnlene sulfonates, phosphate esters, alkyl sulfate, etc.
- a preferred coupling agent is a hydrotrope such as sodium xylene sulfonate (SXS).
- SXS sodium xylene sulfonate
- a particularly preferred form of SXS is SXS-40, which is a 40% solution of SXS in water.
- SXS-40 is sold by Stepan Company under the tradenames STEPANATE SXS and similar products sold by Pilot (Pilot SXS-40) and Witco (Witconate SXS liquid, Petro BA and Petro AA).
- the coupling agent minimizes phase separation of the surfactant from the builder.
- the cleaner can include a rinse indicator such as at least one cationic surfactant which causes beading of the rinse water on the glass surface being cleaned.
- a rinse indicator such as at least one cationic surfactant which causes beading of the rinse water on the glass surface being cleaned.
- One preferred cationic surfactant is an ethyoxlated quaternary surfactant such as Q-17-2 sold by Exxon's Tomah division.
- the cationic surfactant aids rinsing by causing the rinse water to bead up when rinsing is completed.
- any cationic surfactant soluble or dispersible in a highly built formula can also be used.
- the foregoing surfactants can be used alone or in combination with each other with or without additional surfactants.
- the cleaning composition can include optional components such as corrosion inhibitors for glass and/or metal (e.g., aluminum, copper, steel, galvanized surfaces, etc.), odorants, disinfectants, anti-fogging agents, solvents, water softening agents, suspension agents, etc.
- corrosion inhibitors for glass and/or metal e.g., aluminum, copper, steel, galvanized surfaces, etc.
- odorants e.g., aluminum, copper, steel, galvanized surfaces, etc.
- odorants e.g., odorants, disinfectants, anti-fogging agents, solvents, water softening agents, suspension agents, etc.
- odorants e.g., odorants, disinfectants, anti-fogging agents, solvents, water softening agents, suspension agents, etc.
- a preferred corrosion inhibitor is a sodium silicate such as sodium meta silicate pentahydrate (SMS-5H 2 O), which is an aluminum corrosion inhibitor.
- the cleaning composition according to one embodiment of the present invention comprises a loose or compacted powder which includes about 15 to 60, preferably about 30% by weight of tetrasodium EDTA; about 15 to 60, preferably about 30% by weight of tetrapotassium pyrophosphate; about 15 to 60, preferably about 30% by weight of sodium carbonate (preferably in the low density form); about 2.5 to 10, preferably about 5% by weight of ethoxylated alcohol surfactants; and about 2.5 to 10, preferably about 5% by weight of ethoxylated quaternary surfactant.
- the tetrasodium EDTA and tetrapotassium pyrophosphate synergistically combine to remove high silicate dirt type soil, which is the most common form of soil found on home exterior windows.
- the sodium carbonate aids in the removal of grease and oils, particularly from body oils such as fingerprints. It also acts as a filler that lowers the cost of the composition and facilities compression of the cleaning composition in pellet form.
- the ethoxylated alcohol surfactant assists in the removal of body oils such as fingerprints. It also achieves wetting of a glass surface so that even cleaning is achieved.
- the ethoxylated quaternary surfactant serves as a rinse indicator that allows the user to know when enough purified rinse water has been applied to the surface. It is important from a cost perspective to avoid using more purified rinse water than necessary because the ion exchange resin, which purifies the rinse water, will last longer if it only processes the minimum amount of rinse water necessary for a given application.
- the powdered cleaning composition of the invention When applied in combination with water, the powdered cleaning composition of the invention can be used in solid form, such as a pellet, to allow the water to dissolve it.
- the pellet can be compressed in a shape that is compatible with a hand held hose end sprayer apparatus from which it is dispersed.
- the cleaning composition is in a liquid or semi- liquid form which is mixed with water and sprayed onto a window by a hand- held hose-end sprayer.
- the cleaner can be in the form of an aqueous solution which is withdrawn from a container via suction and admixed with water from a garden hose via a closed venturi or aspirator type of sprayer.
- the method of the invention comprises cleaning a surface by applying a cleaning composition in combination with water to the surface, passing rinse water through an ion exchange resin to purify it, and rinsing the surface with the purified water.
- the method of the invention is particularly effective in removing dirt, smudges, bird droppings, and hard water spots from glass surfaces such as the exterior surfaces of outdoor windows.
- Factors that affect how clean a window is after rinsing include the effectiveness of the cleaning step, the size of the windows, the weather conditions at the time of cleamng, and the quality of the rinse water.
- a significant advantage of the method of the invention is in eliminating or reducing the formation of an undesirable, residual hard water film or spots on the surface that has been cleaned. This is achieved by removing the hardness of the rinse water by first passing the rinse water through an ion exchange resin such as a bed of ion exchange resin particles.
- the cleaning composition according to another embodiment of the present invention comprises an aqueous cleaning composition.
- the aqueous cleaning composition can include 40 to 75 % , preferably about 50-65 % by weight of water; 5 to 30%, preferably about 10-20% by weight of a 40% solution of ethylenediaminetetraacetate tetrasodium salt in water (EDTA such as Versene 100); 2 to 20%, preferably 5-15% by weight of inorganic builder such as tetrapotassium pyrophosphate (TKPP); 0.5 to 10% of at least one ethoxylated alcohol surfactant, preferably about 1 to 5% by weight of a mixture of alcohols containing 9 to 11 carbon atoms with an average of 6 moles of ethylene oxide reacted into the hydroxyl portion of the alcohols (Neodol 91-6) and about 1 to 5 % by weight of a mixture of alcohols containing 9 to 11 carbon atoms with an average of 2.5 moles of ethylene oxide reacted onto the
- the ion exchange resin used in the method of the invention can be of the cationic, anionic, and preferably of the mixed bed type, such as a blend of cationic and anionic resins.
- the ion exchange resin may contain various particle sizes or the resin can have a narrow particle size distribution.
- the method of the invention is preferably used to clean glass surfaces such as windows.
- the method of the invention can be used to clean other surfaces such as mirrors, polished stone, ceramic, painted surfaces such as vehicles, or other shiny surfaces.
- a time interval between the steps of applying the cleaning composition and applying the purified rinse water to the surface It is preferable to have a time interval between the steps of applying the cleaning composition and applying the purified rinse water to the surface.
- the preferred practice is to apply the cleaning composition and wait 10 seconds to 1 minute before applying the purified rinse water.
- the cleaning composition could be removed by water from any source at any time such as during a rainstorm.
- One or more applicator devices such as hose-end, hand-held spray guns can be used to practice the method of the invention.
- one spray gun could apply the cleaner and another spray gun could apply the water rinse.
- spray guns which could be modified to include chambers for holding the ion exchange resin and/or the powdered or liquid cleaning composition can be found in commonly owned U.S. Patent Nos.
- the applicator device includes separate chambers for the cleaner and ion exchange resin.
- Such spray guns can be attached to the end of a garden hose to receive water for performing the cleaning step by combining the cleaning composition with water and spraying the mixture on a surface to be cleaned.
- the spray gun can also be used for performing the rinse step.
- the applicator device has a compartment for containing a cleaning composition and a separate compartment for containing an ion exchange resin.
- a valve can be used to direct incoming water from a garden hose to either compartment depending on which step of the method of the invention is being carried out.
- the applicator device can include suitable attachments for connection to containers/sources of the cleaning composition and ion-exchanged rinse water.
- the cleaning solution along with the force of the blast of the water hitting the glass can clean a window and the ethoxylated quaternary surfactant can form an invisible film on the glass.
- This film will cause the glass to bead water when the purified rinse water is applied.
- the user knows that enough purified rinse water has been applied to the window to remove the cleaning composition without spotting and/or filming.
- the excess use of purified rinse water can be avoided and the life of the exchange resin can be maximized allowing more windows to be cleaned before replacement of the exchange resin. In this way, a smaller and thus more economical spray gun can be manufactured for consumer use.
- FIG. 1 An applicator device in accordance with one embodiment of the invention is shown in Figure 1.
- the applicator 10 has a compartment 12 for containing the cleaning composition 14 and a compartment 16 for containing the ion exchange resin 18.
- the applicator device can be connected to a garden hose 20.
- a valve 22 will allow the user to direct the incoming water through either compartment 12 or 16, depending on whether the cleaning or rinsing step is being carried out.
- the valve 22 When the valve 22 is in the "Clean” position, the incoming water from the hose 20 will mix with the cleaning composition 14 inside compartment 12 to permit cleaning of a surface without scrubbing. In that mode, the mixture of water and cleaning solution will exit through opening 24.
- the valve 22 When the valve 22 is switched to the "Rinse” position, the incoming water from the hose 20 will pass through the ion exchange resin 18 in compartment 16 and exit through opening 26. As the incoming water passes through the ion exchange resin 18 in compartment 16, it is treated to remove the hardness and other residues that cause spotting.
- the glass rinsed with the purified water can dry to a clean finish without wiping or using another device such as a squeegee.
- Figure 2 illustrates how the applicator device 10 can be used to employ the composition and method of the invention to clean surfaces such as glass windows above ground level without having to use ladders and scrub or wipe the windows.
- FIGS 3 a-c illustrate side, top and front views, respectively, of a hand ⁇ held, hose end spray gun 28 useful for cleaning and rinsing a surface to be cleaned in accordance with the invention.
- the spray gun includes a main body 30 and an ion exchange cartridge 32.
- the main body includes an inlet 34 for attachment to a garden hose 36 and an inlet 38 for attachment to a container 40 holding a liquid detergent composition withdrawn from the container by suction through suction tube 42.
- a valve 44 includes passages (not shown) for selectively allowing water from the garden hose to pass through the ion exchange cartridge or pass directly through the main body so as to mix with the liquid detergent.
- the main body includes an outlet 46 communicating with the inlet 48 of the cartridge.
- the inlet 48 is located on a projection 50 sealed in a bore 52 in the main body by an O-ring 54.
- the inlet 48 is in fluid communication with a series of passages 56, 58, 60, 62, 64, 66 filled with particles of an ion exchange resin 68.
- the cartridge 32 is cylindrical in shape and the passages 56-66 are progressively larger in cross section and volume towards the middle of the cartridge.
- the main body includes tabs 76, 78 which engage shoulders 80, 82.
- the cartridge includes a cap 84 and a base 86, the base including a T-shaped slot receiving a mating T- shaped portion of the main body, as shown in Figure 3c. With this arrangement, the cartridge 32 can be replaced when the ion exchange resin particles are depleted and no longer adequately perform their ion exchanging function.
- Figures 4 a-c illustrate side, top and front views, respectively, of the main body 30 of the spray gun 28.
- the main body includes an opening 92, an upstream passage 94, a downstream passage 96, a supply passage 98, a bore 100 and an outlet 102.
- the bore 100 receives an outlet end of the suction tube 42 and liquid detergent is siphoned into the downstream passage 96 due to a closed venturi effect when water from the hose 36 passes from the upstream passage 94 into the downstream passage 96.
- the valve 44 is in a cleaning position, water is supplied to the opening 92 and liquid detergent is mixed with water and sprayed through the outlet 102.
- FIGs 5 a-b illustrate details of the base 86 and the cap 84 of the ion exchange resin cartridge 32 of the spray gun 28.
- the base includes partitions 104, 106, 108 and the cap 84 includes a series of grooves 110, 112, 114 receiving edges of the partitions 104-108.
- the cap 84 also includes partitions 116, 118.
- the partitions provide a flow path which directs the water entering inlet 48 upwardly and over an upper edge of partition 104, downwardly between partitions 104 and 116, under a lower edge of partition 116, upwardly between partitions 116 and 106, and so on.
- six passages 56-66 are shown, any suitable arrangement of flow passages can be used in accordance with the invention.
- Figures 7 a-c illustrate side, top and front views, respectively, of a spray gun having a modified ion exchange resin cartridge 120 in accordance with the invention and Figure 8 shows details of the cartridge 120.
- the main body 30 is the same as shown in Figures 3-6 but the cartridge has a different flow passage arrangement for purposes of obtaining more effective treatment of the water in order to remove the hardness thereof.
- the cartridge includes upward flow passages 122, 124, 126, 128, 130 and downward flow passages 132, 134, 136 138 formed by partitions 140, 142, 144, 146, 148, 150, 152, 154, 156, 158, 160.
- the upward flow passages 122-130 are larger in cross section and volume than the downward flow passages 132, 134, 136, 138, 140.
- the closely spaced portions forming the downward flow passages can be less than 0.10 inch apart. It is believed that the ion exchange resin is more effective in removing the hardness of the water when the water is flowing against gravity since this would reduce channeling of the water to be treated through the resin. As such, the modified cartridge provides a more effective and efficient arrangement of the ion exchange resin particles.
- Figures 9 a-b illustrate side and front views, respectively, of a modified spray gun 170 having an ion exchange resin compartment built into a main body 172 in accordance with another embodiment of the invention.
- the main body 172 includes an inlet 174 for attachment to a garden hose and an inlet 176 for attachment to a container holding a liquid detergent composition which is withdrawn from the container by suction through a suction tube.
- a valve 200 includes passages for selectively allowing water from the garden hose to pass through an ion exchange resin compartment 180 comprised of three sequential flow passages 182, 184, 186 or pass directly through the main body 172 so as to mix with the liquid detergent.
- the main body includes a passage 188 directly communicating with the flow passage 182 which in turn communicates with flow passages 184 and 186, all of which are filled with the ion exchange resin.
- the main body 172 includes an upstream passage 190, a downstream passage 192, a supply passage 194, a bore 196 and an outlet 198.
- the bore 196 receives an outlet end of the suction tube and liquid detergent is siphoned into the downstream passage 192 due to a closed venturi effect when water from the hose passes through the upstream passage 190 into the downstream passage 192.
- valve 200 when valve 200 is in a cleaning position, water is supplied to the passage 190 and liquid detergent is mixed with water and sprayed through the outlet 198.
- FIG. 10 illustrates details of the spray gun shown in Figure 1 having an ion exchange resin compartment 210 and a compartment 212 holding a cleaning composition built into a main body 220.
- the main body 220 includes an inlet 222 for attachment to a garden hose, an outlet 224 for spraying a mixture of water and cleaner and an outlet 226 for spraying rinse water.
- valve 230 When valve 230 is in a rinse position, a passage 232 allows water from the garden hose to pass through the ion exchange resin compartment 210.
- the deionizer compartment includes a series of baffles 214 (only three of which are shown) and particles of an ion exchange resin 216 between the baffles.
- a passage 234 allows water to pass through the cleaner compartment 212 so as to mix with the cleaning composition which can be provided in the form of pellets 218.
- the main body 220 includes a passage 236 communicating with the ion exchange resin compartment 210 and a flow passage 238 communicating with the cleaner compartment 212.
- a flow passage 240 in the main body selectively supplies water to passages 232, 234 in the valve depending on the position of the valve.
- the size of the chamber holding the ion exchange resin was found to affect the efficiency of the resin in removing the hardness of the rinse water. In particular, it was found that longer and more narrow chambers were more efficient than short and wide chambers. In the following tests, A represents a 17 inch long and 1.25 inch diameter chamber holding 300 grams of resin, B represents a 9 inch long and 2 inch diameter chamber holding 260 grams of resin and C represents an 8 inch long and 3 inch diameter chamber holding 280 grams of resin. In the following results, the rinse water had a hardness of about 290
- the ion exchange resin can comprise a mixture of anionic and cationic resins.
- a preferred cationic resin is Dowex Monosphere 550A available from Dow Chemical Company, a strong base anion exchange type deionizer having a styrene-DVB gel matrix and a quaternary amine functional group with a mean particle size of 530 to 630 microns.
- a preferred anionic resin is Dowex Monosphere 650C(H) available from Dow Chemical Company, a strong acid cation exchange type deionizer having a styrene-DVB gel matrix and a sulfonic acid functional group with a mean particle size of 600 to 700 microns.
- a 50/50 mixture of these two deionizers can remove enough hardness from the water typically found in suburban environments to sufficiently avoid filming and/or spotting after the rinsing step according to the invention.
- the amount of deionizer needed to rinse the windows of a home will depend on the hardness of the water and size of the home, e.g. 300 grams of deionizer for a large home and 100 grams of deionizer for a small home.
- Cleaning performance of cleaning compositions in accordance with the invention was compared to cleaning performance of commercially available products sold under the names Bix, renz e-z and Windex Outdoor, with a rating of 0 on a scale of 0 to 4 indicating complete soil removal (as observed visually and by gloss meter) and 4 representing lack of soil removal.
- the products were sprayed through a hose end sprayer onto exterior windows and rinsed off after about 1 minute. The results of these tests are set forth below:
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU38041/97A AU3804197A (en) | 1996-06-19 | 1997-06-19 | Cleaning composition, method and apparatus for cleaning exterior windows |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US2007196P | 1996-06-19 | 1996-06-19 | |
US60/020,071 | 1996-06-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997048927A1 true WO1997048927A1 (en) | 1997-12-24 |
Family
ID=21796582
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1997/012596 WO1997048927A1 (en) | 1996-06-19 | 1997-06-19 | Cleaning composition, method and apparatus for cleaning exterior windows |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU3804197A (en) |
MX (1) | MX9801382A (en) |
WO (1) | WO1997048927A1 (en) |
Cited By (14)
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WO2001096516A1 (en) * | 2000-06-14 | 2001-12-20 | The Procter & Gamble Company | Process for cleaning a surface |
WO2001096036A1 (en) * | 2000-06-14 | 2001-12-20 | The Procter & Gamble Company | Spray cleaning device |
WO2002098798A1 (en) * | 2001-06-06 | 2002-12-12 | The Procter & Gamble Company | Article for deionization of water |
US6562142B2 (en) | 2001-01-30 | 2003-05-13 | The Procter & Gamble Company | System and method for cleaning and/or treating vehicles and the surfaces of other objects |
WO2004024352A1 (en) * | 2002-09-10 | 2004-03-25 | Ppg Industries Ohio, Inc. | Method and apparatus for cleaning a photoactive and/or hydrophilic surface |
WO2003022447A3 (en) * | 2001-09-11 | 2004-07-22 | Procter & Gamble | Sprayer and filter therefor |
WO2006052578A2 (en) * | 2004-11-03 | 2006-05-18 | Johnsondiversey, Inc. | Method of cleaning containers for recycling |
US7081441B2 (en) | 2002-05-24 | 2006-07-25 | The Procter & Gamble Co. | Composition for cleaning and/or treating surfaces |
US7124962B1 (en) | 2005-05-24 | 2006-10-24 | S.C. Johnson & Son, Inc. | Sprayer for cleaning exterior surfaces |
US7256165B2 (en) | 1999-06-15 | 2007-08-14 | The Procter & Gamble Company | Cleaning compositions |
US7264678B2 (en) | 2000-06-14 | 2007-09-04 | The Procter & Gamble Company | Process for cleaning a surface |
US7507300B2 (en) * | 2002-09-10 | 2009-03-24 | Ppg Industries Ohio, Inc. | Method and apparatus for cleaning a photoactive and/or hydrophilic surface |
US7874757B2 (en) | 2007-02-21 | 2011-01-25 | Diversified Dynamics Corporation | Window cleaning apparatus with deionization cartridge |
US11028344B2 (en) | 2016-08-16 | 2021-06-08 | Diversey, Inc. | Composition for aesthetic improvement of food and beverage containers and methods thereof |
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US7507300B2 (en) * | 2002-09-10 | 2009-03-24 | Ppg Industries Ohio, Inc. | Method and apparatus for cleaning a photoactive and/or hydrophilic surface |
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AU2005305095B2 (en) * | 2004-11-03 | 2011-07-14 | Diversey, Inc. | Method of cleaning containers for recycling |
US7124962B1 (en) | 2005-05-24 | 2006-10-24 | S.C. Johnson & Son, Inc. | Sprayer for cleaning exterior surfaces |
US7874757B2 (en) | 2007-02-21 | 2011-01-25 | Diversified Dynamics Corporation | Window cleaning apparatus with deionization cartridge |
US11028344B2 (en) | 2016-08-16 | 2021-06-08 | Diversey, Inc. | Composition for aesthetic improvement of food and beverage containers and methods thereof |
Also Published As
Publication number | Publication date |
---|---|
AU3804197A (en) | 1998-01-07 |
MX9801382A (en) | 1998-11-29 |
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