WO2011062707A1 - Hypochlorite denture compositions and methods of use - Google Patents
Hypochlorite denture compositions and methods of use Download PDFInfo
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- WO2011062707A1 WO2011062707A1 PCT/US2010/052487 US2010052487W WO2011062707A1 WO 2011062707 A1 WO2011062707 A1 WO 2011062707A1 US 2010052487 W US2010052487 W US 2010052487W WO 2011062707 A1 WO2011062707 A1 WO 2011062707A1
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B11/00—Oxides or oxyacids of halogens; Salts thereof
- C01B11/04—Hypochlorous acid
- C01B11/06—Hypochlorites
- C01B11/064—Hypochlorites of alkaline-earth metals
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/50—Preparations specially adapted for dental root treatment
- A61K6/52—Cleaning; Disinfecting
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
Definitions
- the present invention relates generally to solid single-layered cleaning compositions. These compositions may be used to clean and disinfect dentures, other dental appliances, or cleaning other oral surfaces (e.g., as a mouthwash, endodontic root canal disinfection).
- compositions and methods related to denture cleaning compounds comprising hypochlorite in a single-layered composition. It is contemplated that the composition may also be useful in other oral care environments, such as a mouthwash and as an endodontic root canal disinfectant.
- Use of calcium and/or magnesium hypochlorite in a single-layered composition (e.g., in tablet form) as taught herein minimizes and/or eliminates the formation of residues that are associated with other calcium hypochlorite compositions.
- the compositions do not generate malodors typically associated with the use of chlorinated isocyanurates.
- the present invention also releases bleach faster than the typical use of halogenated hydantoins.
- the present invention also dissolves faster than typical commercial products based on calcium hypochlorite or halogenated hydantoins.
- One embodiment of the present invention comprises a solid single-layered composition including: a) a hypochlorite selected from the group consisting of calcium hypochlorite, magnesium hypochlorite and mixtures thereof; b) a builder selected from the group consisting of carbonate, bicarbonate, sesquicarbonate and mixtures thereof; c) an acid selected from the group consisting of carboxylic acid, dicarboxylic acid, sulfonic acid, acid sulfate, acid phosphate, and mixtures thereof; d) a water-soluble polymer selected from the group consisting of a polycarboxylate, sulfonated carboxylate, polysulfonate, polyvinylpyrrolidone, polypyridinium salt, polyquaternary ammonium salt, and mixtures thereof; e) at least one anionic surfactant; f) at least one hydrotrope; g) wherein the composition does not contain potassium hypochlorite, sodium hypochlorite, lithium hypoch
- Another embodiment of the present invention comprises a solid-layered one- layered composition consisting essentially of a) a hypochlorite selected from the group consisting of calcium hypochlorite, magnesium hypochlorite and mixtures thereof; b) a builder selected from the group consisting of carbonate, bicarbonate, sesquicarbonate and mixtures thereof; c) an acid selected from the group consisting of carboxylic acid dicarboxylic acid, sulfonic acid, an acid sulfate, an acid phosphate, and mixtures thereof; d) a water-soluble polymer selected from the group consisting of a polycarboxylate, a sulfonated carboxylate, a polysulfonate, a polyvinylpyrrolidone, a polypyridinium salt, a polyquaternary ammonium salt, and mixtures thereof; e) at least one anionic surfactant; f) at least one hydrotrope; g) optionally, a cobuild
- Another embodiment of the present invention is directed to a solid one- layered composition consisting of: a) a hypochlorite selected from the group consisting of calcium hypochlorite, magnesium hypochlorite and mixtures thereof; b) a builder selected from the group consisting of carbonate, bicarbonate, sesquicarbonate and mixtures thereof; c) an acid selected from the group consisting of a carboxylic acid, a dicarboxylic acid, a sulfonic acid, an acid sulfate, an acid phosphate, and mixtures thereof; d) a water-soluble polymer selected from the group consisting of a polycarboxylate, sulfonated carboxylate, polysulfonate, polyvinylpyrrolidone, polypyridinium salt, polyquatemary ammonium salt, and mixtures thereof; e) at least one anionic surfactant; f) optionally, at least one hydrotrope; g) optionally, a cobuilder
- the composition includes calcium and/or magnesium hypochlorite and an acid
- hypochlorous acid is formed upon dissolution of the composition in water.
- the composition derives its disinfection and cleaning properties from the hypochlorous acid formed in situ, rather than the hypochlorite alone.
- the use of hypochlorous acid, rather than direct use of an alkaline or alkaline earth hypochlorite (e.g. , calcium hypochlorite) results in a composition that is acidic rather than basic, and which provides improved efficacy.
- surfactant is meant to mean and include a substance or compound that reduces surface tension when dissolved in water or water solutions, or that reduces interfacial tension between two liquids, or between a liquid and a solid.
- surfactant thus includes anionic, nonionic, cationic, zwitterionic and/or amphoteric agents.
- the present invention is directed to a solid single-layered composition.
- the solid single-layered composition comprises calcium hypochlorite, magnesium hypochlorite or mixtures thereof, an acid, a water-soluble polymer, and an anionic surfactant.
- Optional ingredients may be added to the composition to enhance the efficacy of the solid single-layered composition.
- the calcium and/or magnesium hypochlorite and acid react to form hypochlorous acid.
- the composition may be particularly suitable for use in disinfecting dentures or other dental appliances, although it is contemplated that the composition may also be useful in other oral care environments, such as a mouthwash and as an endodontic root canal disinfectant.
- hypochlorous acid rather than direct use of an alkaline or alkaline earth hypochlorite (e.g. , calcium hypochlorite) results in a composition that is typically acidic rather than basic.
- This lower pH speeds the rate of antimicrobial activity, improves the removal of plaque and biofilms including their conditioning layer, and increases the removal of stains from food, beverages and tobacco.
- Complete removal of biofilms including their conditioning layer increases the incubation time required for bacteria to reattach to the denture to reform a biofilm when subsequently re-exposed to bacteria.
- the lower pH also increases the removal of dental calculus and other hard to remove calcium deposits. This is because the solubility of the calcium is significantly greater within the acidic environment.
- hypochlorous acid is more effective than hypochlorite ion, a lower concentration of hypochlorous acid may be used. This largely eliminates the formation of unpleasant odors from the reaction of hypochlorite ion and proteins. In addition, the hypochlorous acid works more quickly so that shorter contact times with the cleaning solution produce the desired results. Hypochlorous acid solutions by virtue of their lower effective concentration and their lower pH are also less corrosive to some materials used to construct dentures and dental appliances.
- the pH of the mixed and prepared composition may be as high as about 9, preferably, the pH of the hypochlorous acid disinfecting composition is between about 5 and about 8. In another embodiment, the pH of the hypochlorous acid disinfecting composition is between about 6 and about 7. In one embodiment, the pH is preferably acidic (i.e., less than 7), most preferably between about 5.5 and about 6.5.
- the concentration of hypochlorous acid will be selected to remove stains, biofilms and kill or remove at least 99.9% of bacteria, viruses, and fungi.
- concentration will depend on the use instructions for the product.
- a product designed for soaking dentures overnight would contain at least 10 ppm, preferably more than about 20 ppm, more preferably more than about 30 ppm, and most preferably more than about 50 ppm of hypochlorous acid.
- a product designed to work in 3 to 5 minutes would contain at least 50 ppm, preferably more than about 100 ppm, more preferably more than about 150 ppm, and most preferably more than about 300 ppm of hypochlorous acid.
- the maximum concentration is about 1500 ppm, preferably less than about 1000 ppm, more preferably less than about 600 ppm, and most preferably less than about 400 ppm of hypochlorous acid.
- the solid single-layered composition contains calcium hypochlorite, magnesium hypochlorite or mixtures thereof. These hypochlorite salts include anhydrous varieties as well as the various hydrates, double salts such as monobasic and dibasic forms, and triple salts. The hypochlorite salts may be crystalline or amorphous.
- the solid single-layered composition does not contain any other types of hypochlorite such as sodium hypochlorite, lithium hypochlorite, or potassium hypochlorite.
- the composition does not contain any N-halogenated compounds, peroxides, persulfates, hydantoins, isocyanurates, or carboxylic acids that also have hydroxyl, amino, amido, imino, or imido groups.
- Such excluded components include hypobromites, hypoiodites, chlorinated trisodium phosphate dodecahydrates, potassium and sodium dichloroisocyanurates, trichlorocyanuric acid, N-chloroimides, N-chloroamides, N-chlorosulfamide, N-chloroamines, chlorohydantoins such as dichlorodimethyl hydantoin, chlorobromo dimethylhydantoin, and bromo-compounds corresponding to the chloro-compounds above.
- compositions of the present invention do not require a bleach activator.
- bleach activator it is meant herein a compound which reacts with peroxygen bleach like hydrogen peroxide to form a peracid.
- the peracid thus formed constitutes the activated bleach.
- Bleach activators that are not to be used in the composition include, but are not limited to, those belonging to the class of esters, amides, imides, or anhydrides.
- TAED sodium 3,5,5 trimethyl hexanoyloxy-benzene sulphonate
- diperoxy dodecanoic acid diperoxy dodecanoic acid
- nonylamide of peroxyadipic acid nonylamide of peroxyadipic acid
- n-nonanoyloxybenzenesulphonate NOBS
- ATC acetyl triethyl citrate
- N-acyl caprolactams selected from the group consisting of substituted or unsubstituted benzoyl caprolactam, octanoyl caprolactam, nonanoyl caprolactam, hexanoyl caprolactam, decanoyl caprolactam, undecenoyl caprolact
- the calcium hypochlorite, magnesium hypochlorite or mixture thereof is present in the composition in an amount of less than about 50%.
- the calcium and/or magnesium hypochlorite may be present in the composition in an amount ranging from about 0.1% to about 50%, about 0.1% to about 45%, about 0.1% to about 40%, about 0.1% to about 30%, about 0.1% to about 25%, about 0.1% to about 20%, about 0.1% to about 15%, about 0.1% to about 10%, about 0.1%) to about 5%, about 5% to about 20%>, about 5% to about 15%, about 10%> to about 20%, about 10% to about 15% or about 15% to about 20%.
- the composition may contain a builder.
- the builder may be present in the cleaning composition in an amount ranging from about 10% to about 90%, about 20% to about 90%, about 20% to about 80%, about 20% to about 60%, about 20% to about 50%), about 30%) to about 60%>, about 35 to about 55%, about 40 to about 50%, about 20% to about 30%, about 30% to about 50%, about 30% to about 45%, about 30% to about 40%, about 20% to about 60%, about 25% to about 60%, about 20% to about 40%), or about 20% to about 30%.
- the builder can be selected from inorganic builders, such as carbonate, bicarbonate, sesquicarbonate, and mixtures thereof.
- the builder may comprise a carbonate, bicarbonate, or sesquicarbonate of one or more alkali metals.
- the builder may be in its anhydrous form or any of its stable hydrates, and they may be crystalline or amorphous.
- a builder is advantageous, as it can increase the effectiveness of the surfactant.
- the builder can also function as a softener, a sequestering agent, a buffering agent, or a pH adjusting agent in the cleaning composition.
- a variety of builders or buffers can be used and they include, but are not limited to, phosphate- silicate compounds, zeolites, alkali metal, ammonium and substituted ammonium polyacetates, trialkali salts of nitrilotriacetic acid, carboxylates, polycarboxylates, carbonates, bicarbonates, polyphosphates, aminopolycarboxylates, polyhydroxy- sulfonates, and starch derivatives.
- Builders when used, include, but are not limited to, organic acids, mineral acids, alkali metal and alkaline earth salts of silicate, metasilicate, polysilicate, borate, sulfates, hydroxide, carbonate, carbamate, phosphate, polyphosphate, pyrophosphates, triphosphates, tetraphosphates, ammonia, hydroxide, monoethanolamine, monopropanolamine, diethanolamine, dipropanolamine, triethanolamine, and 2-amino-2-methylpropanol.
- Other suitable buffers include ammonium carbamate and acetic acid. Mixtures of any of the above may also be acceptable.
- Useful inorganic buffers/alkalinity sources include ammonia, the alkali metal carbonates and alkali metal phosphates, e.g., sodium carbonate, sodium polyphosphate.
- alkali metal carbonates and alkali metal phosphates e.g., sodium carbonate, sodium polyphosphate.
- Other preferred pH adjusting agents include sodium or potassium hydroxide.
- silicate is meant to encompass silicate, metasilicate, polysilicate, aluminosilicate and similar compounds.
- Preferred builders/buffers of the solid single- layered composition include carbonate, bicarbonate, sesquicarbonate and mixtures thereof.
- the composition may contain a water-soluble polymer.
- water-soluble polymers include, but are not limited to, polycarboxylate, sulfonated carboxylate, polysulfonate, polyvinylpyrrolidone ("PVP"), a polypyridinium salt, a polyquaternary ammonium salt, and mixtures thereof.
- polycarboxylates include, but are not limited to polymers with sufficient carboxylate ions to achieve water solubility.
- Carboxylate ions may be derived from various monomers including acrylic acid, methacrylic acid, maleic acid and maleic anhydride.
- Copolymers of different carboxylate-containing monomers are also suitable as well as copolymers with non carboxylate containing monomers such as methacrylate, acrylonitrile, styrene, ethylene, propylene, and many others. Mixtures of carboxylate containing polymers can also be used.
- the molecular weight of the water-soluble polymer may be between about 1,000 to about 10,000 daltons, about 1,000 to about 8,000 daltons, about 1,000 to about 6,000 daltons, about 1,000 to about 5,000 daltons, about 1,000 to about 4,000 daltons, about 1,000 to about 2,000 daltons, about 2,000 to about 10,000 daltons, about 2,000 to about 8,000 daltons, about 2,000 to about 6,000 daltons, about 2,000 to about 5,000 daltons, about 2,000 to about 4,000 daltons, about 3,000 to about 10,000 daltons, about 3,000 to about 8,000 daltons, about 3,000 to about 6,000 daltons, about 3,000 to about 5,000 daltons, about 3,000 to about 4,000 daltons, about 4,000 to about 10,000 daltons, about 4,000 to about 8,000 daltons, about 4,000 to about 6,000 daltons, about 5,000 to about 10,000 daltons, about 5,000 to about 7,500 daltons, or about 7,500 to about 10,000 daltons.
- the water-soluble polymer may be present in an amount ranging from about 0.1% to about 60%, about 0.1% to about 50%, about 0.1% to about 40%, about 0.1% to about 30%, about 0.1% to about 20%, about 0.1% to about 15%, about 0.1% to about 10%, about 1% to about 10%, about 1% to about 5%, about 1% to about 3%, about 5% to about 60%), about 5% to about 50%>, about 5% to about 40%>, about 5% to about 30%>, about 5% to about 20%, about 5% to about 10%, about 10% to about 60%, about 10% to about 50%, about 10% to about 40%, about 10% to about 30%, about 10% to 20%, about 20% to about 60%, about 20% to about 50%, about 20% to about 40%, about 20% to about 30%, about 30% to about 60%, about 30% to about 50%, about 30% to about 40%, or about 40% to about 60%.
- the composition may contain an acid.
- acids that can be used with the present invention include, but are not limited to, carboxylic acid, dicarboxylic acid, sulfonic acid, an acid sulfate, an acid phosphate, and mixtures thereof.
- Specific examples of acids include, but are not limited to, succinic acid, glutaric acid, 3-pyridine sulfonic acid, dodecyl benzene sulfonic acid, and mixtures thereof.
- the composition does not contain carboxylic acids that have one or more hydroxyl, amino, amido, imino, or imido group moieties.
- acids that are not to be used in the composition include, but are not limited to citric acid, tartaric acid, and alanine.
- the acid may be present in an amount of at least 30%, and in one embodiment at least 50%, of the composition.
- the acid may be present in an amount ranging from about 30%> to about 80%>, about 30%> to about 70%>, about 30%> to about 60%, about 30% to about 50%, or about 40% to about 80%, about 40% to about 70%, about 40% to about 60%, about 40% to about 50%, about 50% to about 80%, about 50% to about 70%, or about 50% to about 60%.
- the acid is present in an amount of at least about 50% (e.g., about 50% to about 60%>), and the calcium and/or magnesium hypochlorite is present in an amount of about 0.1% to about 5%. This results in the desired relatively low, but effective, concentration of hypochlorous acid upon dissolution of the composition in water.
- the composition may optionally contain a cross-linked water-swellable polymer.
- water-swellable polymers include, but are not limited to, cross- linked polycarboxylate, cross-linked sulfonated carboxylate, cross-linked polysulfonate, cross-linked PVP, cross-linked polypyridinium salt, cross-linked polyquaternary ammonium salt, cellulose, cross-linked carboxymethylcellulose, sodium carboxymethylcellulose, and mixtures thereof.
- the molecular weight of the water-swellable polymer may be between about 1,000 to about 10,000 daltons, about 1,000 to about 8,000 daltons, about 1,000 to about 6,000 daltons, about 1,000 to about 5,000 daltons, about 1,000 to about 4,000 daltons, about 1,000 to about 2,000 daltons, about 2,000 to about 10,000 daltons, about 2,000 to about 8,000 daltons, about 2,000 to about 6,000 daltons, about 2,000 to about 5,000 daltons, about 2,000 to about 4,000 daltons, about 3,000 to about 10,000 daltons, about 3,000 to about 8,000 daltons, about 3,000 to about 6,000 daltons, about 3,000 to about 5,000 daltons, about 3,000 to about 4,000 daltons, about 4,000 to about 10,000 daltons, about 4,000 to about 8,000 daltons, about 4,000 to about 6,000 daltons, about 5,000 to about 10,000 daltons, about 5,000 to about 7,500 daltons, and about 7,500 to about 10,000 daltons.
- the water-swellable polymer may optionally be present in an amount ranging from about 0.1% to about 60%, about 0.1% to about 50%, about 0.1% to about 40%, about 0.1% to about 30%, about 0.1% to about 20%, about 0.1% to about 15%, about 0.1% to about 10%, about 0.5% to about 10%, about 0.5% to about 5%, about 0.5% to about 3%), about 5% to about 60%>, about 5% to about 50%>, about 5% to about 40%>, about 5% to about 30%>, about 5% to about 20%, about 5% to about 10%, about 10% to about 60%, about 10% to about 50%, about 10% to about 40%, about 10% to about 30%, about 10% to 20%, about 20% to about 60%, about 20% to about 50%, about 20% to about 40%, about 20% to about 30%, about 30% to about 60%, about 30% to about 50%, about 30% to about 40%, about 40% to about 60%.
- the composition may contain one or more anionic surfactants.
- One or more additional surfactants selected from nonionic, cationic, ampholytic, amphoteric and zwitterionic surfactants and mixtures thereof may be included in some embodiments, although in one embodiment no nonionic surfactants are included.
- a typical listing of anionic, ampholytic, and zwitterionic classes, and species of these surfactants is given in U.S. Pat. No. 3,929,678 to Laughlin and Heuring.
- a list of suitable cationic surfactants is given in U.S. Pat. No. 4,259,217 to Murphy.
- Each of the above patents is hereby incorporated by reference.
- the surfactants may be present at a level of from about 0.1% to about 25%, from about 0.1% to about 20%, from about 0.1% to about 15%), from about 0.1% to about 10%, from about 0.1% to about 5%, from about 5% to about 20%), from about 5% to about 15%, from about 5% to about 10%, from about 10% to about 20%, from about 10% to about 15%, or from about 15% to about 20%.
- the composition comprises an anionic surfactant.
- anionic surfactants useful for detersive purposes can be used in the cleaning composition. These can include salts (including, for example, sodium, potassium, ammonium, and substituted ammonium salts such as mono-, di- and tri-ethanolamine salts) of the anionic sulfate, sulfonate, carboxylate and sarcosinate surfactants.
- Anionic surfactants may comprise a sulfonate or a sulfate surfactant.
- Anionic surfactants may comprise an alkyl sulfate, a linear or branched alkyl benzene sulfonate, or an alkyldiphenyloxide disulfonate, as described herein.
- anionic surfactants include the isethionates such as the acyl isethionates, N-acyl taurates, fatty acid amides of methyl tauride, alkyl succinates and sulfosuccinates, monoesters of sulfosuccinate (for instance, saturated and unsaturated C12-C18 monoesters) diesters of sulfosuccinate (for instance saturated and unsaturated C 6 -Ci 4 diesters), and N-acyl sarcosinates.
- isethionates such as the acyl isethionates, N-acyl taurates, fatty acid amides of methyl tauride, alkyl succinates and sulfosuccinates, monoesters of sulfosuccinate (for instance, saturated and unsaturated C12-C18 monoesters) diesters of sulfosuccinate (for instance saturated and unsaturated C 6 -Ci 4
- Resin acids and hydrogenated resin acids are may also be suitable, such as rosin, hydrogenated rosin, and resin acids and hydrogenated resin acids present in or derived from tallow oil, although in one embodiment, no resins are included.
- Anionic sulfate surfactants suitable for use herein include the linear and branched primary and secondary alkyl sulfates, alkyl ethoxy sulfates, fatty oleoyl glycerol sulfates, alkyl phenol ethylene oxide ether sulfates, the C5-Ci 7 acyl-N ⁇ (Ci-C 4 alkyl) and ⁇ N ⁇ (C 1 -C 2 hydroxyalkyl) glucamine sulfates, and sulfates of alkylpolysacchanides such as the sulfates of alkylpolyglucoside (the nonionic nonsulfated compounds being described herein).
- Alkyl sulfate surfactants may be selected from the linear and branched primary Cio-Cig alkyl sulfates, the Cn-C 15 branched chain alkyl sulfates, or the C 12 -C 14 linear chain alkyl sulfates.
- Alkyl ethoxysulfate surfactants may be selected from the group consisting of the C10-C18 alkyl sulfates, which have been ethoxylated with from 0.5 to 20 moles of ethylene oxide per molecule.
- the alkyl ethoxysulfate surfactant may be a Cn-Cis, or a C11-C15 alkyl sulfate which has been ethoxylated with from 0.5 to 7, or from 1 to 5, moles of ethylene oxide per molecule.
- One aspect of the invention employs mixtures of the alkyl sulfate and/or sulfonate and alkyl ethoxysulfate surfactants. Such mixtures have been disclosed in PCT Patent Application No. WO 93/18124, herein incorporated by reference.
- Anionic sulfonate surfactants suitable for use herein include the salts of C 5 - C 2 o linear alkylbenzene sulfonates, alkyl ester sulfonates, C 6 -C 2 2 primary or secondary alkane sulfonates, C 6 -C 2 4 olefin sulfonates, sulfonated polycarboxylic acids, alkyl glycerol sulfonates, fatty acyl glycerol sulfonates, fatty oleyl glycerol sulfonates, and any mixtures thereof.
- Suitable anionic carboxylate surfactants include the alkyl ethoxy carboxylates, the alkyl polyethoxy polycarboxylate surfactants and the soaps (alkyl carboxyls), especially certain secondary soaps as described herein.
- Suitable alkyl ethoxy carboxylates include those with the formula:
- RO(CH 2 CH 2 0) x CH 2 COO ⁇ M wherein R is a C 6 to C 18 alkyl group, x ranges from 0 to 10, and the ethoxy late distribution is such that, on a weight basis, the amount of material where x is 0 is less than 20% and M is a cation.
- Suitable alkyl polyethoxypolycarboxylate surfactants include those having the formula RO ⁇ (CHR 1 -CHR 2 --0) x ⁇ R 3 wherein R is a C 6 to Ci 8 alkyl group, x is from 1 to 25, R 1 and R 2 are selected from the group consisting of hydrogen, methyl acid radical, succinic acid radical, hydroxysuccinic acid radical, and mixtures thereof, and R 3 is selected from the group consisting of hydrogen, substituted or unsubstituted hydrocarbon having between 1 and 8 carbon atoms, and mixtures thereof.
- Suitable soap surfactants include the secondary soap surfactants, which contain a carboxyl unit connected to a secondary carbon.
- Suitable secondary soap surfactants for use herein are water-soluble members selected from the group consisting of the water-soluble salts of 2-methyl-l-undecanoic acid, 2-ethyl-l-decanoic acid, 2- propyl- 1-nonanoic acid, 2-butyl-l-octanoic acid and 2-pentyl-l-heptanoic acid. Certain soaps may also be included as suds suppressors.
- alkali metal sarcosinates of formula R ⁇ CON(R 1 ) CH-)COOM, wherein R is a C 5 -Ci 7 linear or branched alkyl or alkenyl group, R 1 is a C 1 -C4 alkyl group and M is an alkali metal ion.
- R is a C 5 -Ci 7 linear or branched alkyl or alkenyl group
- R 1 is a C 1 -C4 alkyl group
- M is an alkali metal ion.
- myristyl and oleoyl methyl sarcosinates in the form of their sodium salts are examples of their sodium salts.
- Suitable surfactants include fatty acid sarcosinates which are mild, biodegradable anionic surfactants derived from fatty acids and sarcosine (amino acid).
- Sarcosine is the N-methyl derivative of glycine.
- Sarcosine is a natural amino acid found in muscles and other tissues. Sarcosine is found naturally as an intermediate in the metabolism of choline to glycine.
- the sarcosines are acyl sarcosines.
- acyl sarcosines include, but are not limited to, cocoyl sarcosine, lauroyl sarcosine, myristoyl sarcosine, oleoyl sarcosine, stearoyl sarcosine which are modified fatty acids.
- the salts of acyl sarcosines are referred to acyl sarcosinates.
- Acyl sarcosinates useful herein include, for example, those having a formula:
- RCON(CH 3 )CH 2 COOX wherein R is an alkyl or alkenyl having from 8 to 22 carbon atoms, preferably from 12 to 18 carbon atoms, more preferably from 12 to 14 carbon atoms; and X is a sodium, potassium, ammonium, or triethanolamine.
- acyl sarcosinates that can be used with the present invention include, but are not limited to, sodium coccyl sarcosinate, sodium lauroyl sarcosinate and sodium myristoyl sarcosinate, sodium oleoyl sarcosinate, sodium stearoyl sarcosinate, ammonium coccyl sarcosinate, ammonium lauroyl sarcosinate and ammonium myristoyl sarcosinate, ammonium oleoyl sarcosinate and ammonium stearoyl sarcosinate.
- acyl sarcosinates include, but are not limited to, for example, sodium lauroyl sarcosinate having the tradename HAMPOSYL L30 which is available from Hampshire Chemicals, and sodium cocoyl sarcosinate having the tradename HAMPOSYL C30 which is also available from Hampshire Chemicals.
- Suitable surfactants include fatty alcohol sulfates which have a higher alcohol or alkyl group normally in the range of 10 to 18 carbon atoms.
- the cation will almost invariably be sodium or will include sodium, although other cations, such as triethanolamine, potassium, ammonium, magnesium or calcium may also be used.
- Preferred fatty alcohol sulfates are those wherein the fatty alcohol is essentially saturated and is of a carbon content(s) within the 10 to 18 carbon atoms range, preferably 10 or 12 to 14 or 16 carbon atoms, such as 12 to 16, or that is derived from coconut oil (coco), palm oil, or palm kernel oil.
- Lauryl sulfates and particularly, sodium lauryl sulfate, are preferred primary detergents but such designation also may apply to such detergents wherein the carbon chain length of the alcohol is not limited to 12 carbon atoms, but is primarily (over 50% and normally over 70 or 75%) of 12 to 14 carbon atoms. Such materials may be obtained from natural sources, such as coconut oil and palm kernel oil.
- the fatty alcohol sulfate is a C 12 -C 18 fatty alcohol sulfate.
- the fatty alcohol sulfate is a C 12 -C 16 fatty alcohol sulfate.
- the fatty alcohol sulfate is a C 12 -C 14 fatty alcohol sulfate.
- the fatty alcohol is a C 12 fatty alcohol sulfate. In another embodiment, the fatty alcohol sulfate is sodium lauryl sulfate. In a specific embodiment, the fatty alcohol sulfate is a sodium coco fatty alcohol sulfate.
- Suitable amphoteric surfactants for use herein include the amine oxide surfactants and the alkyl amphocarboxylic acids.
- Suitable amine oxides include those compounds having the formula R 3 (OR 4 ) x NO(R 5 ) 2 wherein R 3 is selected from an alkyl, hydroxyalkyl, acylamidopropyl and alkylphenyl group, or mixtures thereof, containing from 8 to 26 carbon atoms; R 4 is an alkylene or hydroxyalkylene group containing from 2 to 3 carbon atoms, or mixtures thereof, x is from 0 to 5, preferably from 0 to 3; and each R 5 is an alkyl or hydroxyalkyl group containing from 1 to 3, or a polyethylene oxide group containing from 1 to 3 ethylene oxide groups.
- Suitable amine oxides are C10-C18 alkyl dimethylamine oxide, and Cio-Cig acylamido alkyl dimethylamine oxide.
- a suitable example of an alkyl amphodicarboxylic acid is MIRANOL C2M Cone, manufactured by Miranol, Inc., Dayton, N.J.
- Zwitterionic surfactants may also be incorporated into the cleaning compositions. These surfactants can be broadly described as derivatives of secondary and tertiary amines, derivatives of heterocyclic secondary and tertiary amines, or derivatives of quaternary ammonium, quaternary phosphonium or tertiary sulfonium compounds. Betaine and sultaine surfactants are exemplary zwitterionic surfactants for use herein.
- Suitable betaines are those compounds having the formula R(R 1 ) 2 N + R 2 COO " wherein R is a C 6 -Ci8 hydrocarbyl group, each R 1 is typically C1-C3 alkyl, and R 2 is a C1-C5 hydrocarbyl group.
- Suitable betaines are Ci 2 -Ci8 dimethyl-ammonio hexanoate and the C10-C18 acylamidopropane (or ethane) dimethyl (or diethyl) betaines.
- Complex betaine surfactants are also suitable for use herein.
- Suitable cationic surfactants to be used herein include the quaternary ammonium surfactants.
- the quaternary ammonium surfactant may be a mono C 6 -Ci6, or a C 6 -Cio N-alkyl or alkenyl ammonium surfactant wherein the remaining N positions are substituted by methyl, hydroxyethyl or hydroxypropyl groups. Suitable are also the mono-alkoxylated and bis-alkoxylated amine surfactants. Additional suitable cationic surfactants include coco fatty acid diethanolamine, hydrogenated palm tea ester quat, and cationic ethyoxylate fatty acids.
- cationic ester surfactants are cationic ester surfactants.
- the cationic ester surfactant is a compound having surfactant properties comprising at least one ester (i.e. —COO—) linkage and at least one cationically charged group.
- Suitable cationic ester surfactants, including choline ester surfactants have for example been disclosed in U.S. Pat. Nos. 4,228,042, 4,239,660 and 4,260,529, each of which is herein incorporated by reference.
- the ester linkage and cationically charged group may be separated from each other in the surfactant molecule by a spacer group consisting of a chain comprising at least three atoms (i.e. of three atoms chain length), or from three to eight atoms, or from three to five atoms, or three atoms.
- the atoms forming the spacer group chain are selected from the group consisting of carbon, nitrogen, and oxygen atoms and any mixtures thereof, with the proviso that any nitrogen or oxygen atom in said chain connects only with carbon atoms in the chain.
- spacer groups having, for example,—O—O— (i.e.
- the spacer group chain may comprise only carbon atoms, or the chain may be a hydrocarbyl chain.
- the cleaning composition may comprise cationic mono-alkoxylated amine surfactants, for instance, of the general formula: R 1 R 2 R 3 N A P R 4 X " wherein R 1 is an alkyl or alkenyl moiety containing from about 6 to about 18 carbon atoms, or from 6 to about 16 carbon atoms, or from about 6 to about 14 carbon atoms; R 2 and R 3 are each independently alkyl groups containing from one to about three carbon atoms, for instance, methyl, for instance, both R 2 and R 3 are methyl groups; R 4 is selected from hydrogen, methyl and ethyl; X " is an anion such as chloride, bromide, methylsulfate, sulfate, or the like, to provide electrical neutrality; A is a alkoxy group, especially a ethoxy, propoxy or butoxy group; and p is from 0 to about 30, or from 2 to about 15, or from 2 to about 8.
- R 1 is an alkyl or alkenyl
- Suitable A P R 4 groups are -CH 2 CH 2 -OH, -CH 2 CH 2 CH 2 -OH, -CH 2 CH(CH 3 )-OH and— CH(CH 3 )CH 2 — OH.
- Suitable R 1 groups are linear alkyl groups, for instance, linear R 1 groups having from 8 to 14 carbon atoms.
- Suitable cationic mono-alkoxylated amine surfactants for use herein are of the formula R 1 (CH 3 )(CH 3 )N + (CH 2 CH 2 0) 2 _ 5 HX " wherein R 1 is Cio-Cis hydrocarbyl and mixtures thereof, especially C 10 -C 14 alkyl, or C 10 and C 12 alkyl, and X is any convenient anion to provide charge balance, for instance, chloride or bromide.
- compounds of the foregoing type include those wherein the ethoxy (CH 2 CH 2 0) units (EO) are replaced by butoxy, isopropoxy [CH(CH 3 )CH 2 0] and [CH 2 CH(CH 3 )0] units (i-Pr) or n-propoxy units (Pr), or mixtures of EO and/or Pr and/or i-Pr units.
- the cationic bis-alkoxylated amine surfactant may have the general formula: R 1 R 2 N + A p R 3 A* q R 4 X " wherein R 1 is an alkyl or alkenyl moiety containing from about 8 to about 18 carbon atoms, or from 10 to about 16 carbon atoms, or from about 10 to about 14 carbon atoms; R 2 is an alkyl group containing from one to three carbon atoms, for instance, methyl; R 3 and R 4 can vary independently and are selected from hydrogen, methyl and ethyl, X " is an anion such as chloride, bromide, methylsulfate, sulfate, or the like, sufficient to provide electrical neutrality.
- a and A' can vary independently and are each selected from C 1 -C4 alkoxy, for instance, ethoxy, (i.e.,— CH 2 CH 2 O— ), propoxy, butoxy and mixtures thereof, p is from 1 to about 30, or from 1 to about 4 and q is from 1 to about 30, or from 1 to about 4, or both p and q are 1.
- Suitable cationic bis-alkoxylated amine surfactants for use herein are of the formula R 1 CH 3 N + (CH 2 CH 2 0H)(CH 2 CH 2 OH) X " , wherein R 1 is Cio-Cis hydrocarbyl and mixtures thereof, or C 10 , C 12 , C 14 alkyl and mixtures thereof, X " is any convenient anion to provide charge balance, for example, chloride.
- R 1 is Cio-Cis hydrocarbyl and mixtures thereof, or C 10 , C 12 , C 14 alkyl and mixtures thereof
- X " is any convenient anion to provide charge balance, for example, chloride.
- R 1 is derived from (coconut) C 12 -C 14 alkyl fraction fatty acids
- R 2 is methyl and A P R 3 and A' q R 4 are each monoethoxy.
- cationic bis-alkoxylated amine surfactants useful herein include compounds of the formula: R 1 R 2 N + ⁇ (CH 2 CH 2 0) p H--(CH 2 CH 2 0) q H X " wherein R 1 is Cio-Cis hydrocarbyl, or C 10 -C 14 alkyl, independently p is 1 to about 3 and q is 1 to about 3, R 2 is Ci-C 3 alkyl, for example, methyl, and X " is an anion, for example, chloride or bromide.
- the inventive compositions may include at least one fluorosurfactant selected from nonionic fluorosurfactants, cationic fluorosurfactants, and mixtures thereof which are soluble or dispersible in the aqueous compositions taught herein, sometimes compositions which do not include further detersive surfactants, or further organic solvents, or both.
- Suitable nonionic fluorosurfactant compounds are found among the materials presently commercially marketed under the tradename FLUORAD (ex.
- Exemplary fluorosurfactants include those sold as FLUORAD FC-740, generally described to be fluorinated alkyl esters; FLUORAD FC-430, generally described to be fluorinated alkyl esters; FLUORAD FC-431, generally described to be fluorinated alkyl esters; and, FLUORAD FC-170-C, which is generally described as being fluorinated alkyl polyoxyethlene ethanols.
- An example of a suitable cationic fluorosurfactant compound has the following structure: C n F 2n+ iS0 2 NHC 3 H 6 N (CH 3 ) 3 T where n is about 8.
- This cationic fluorosurfactant is available under the tradename FLUORAD FC-135 from 3M.
- Another example of a suitable cationic fluorosurfactant is F 3 — (CF 2 ) n — (CH 2 ) m SCH 2 CHOH-CH 2 ⁇ N + R 1 R 2 R 3 Cr wherein: n is 5-9 and m is 2, and R 1 , R 2 and R 3 are— CH 3 .
- This cationic fluorosurfactant is available under the tradename ZONYL FSD (available from DuPont, described as 2-hydroxy-3-((gamma-omega-perfluoro-C6- 2 o- alkyl)thio)-N,N,N-trimethy- 1-1 -propyl ammonium chloride).
- ZONYL FSD available from DuPont, described as 2-hydroxy-3-((gamma-omega-perfluoro-C6- 2 o- alkyl)thio)-N,N,N-trimethy- 1-1 -propyl ammonium chloride.
- Other cationic fluorosurfactants suitable for use in the present invention are also described in EP 866,115 to Leach and Niwata, herein incorporated by reference.
- the fluorosurfactant selected from the group of nonionic fluorosurfactant, cationic fluorosurfactant, and mixtures thereof may be present in amounts of from 0.001 to 5% wt., preferably from 0.01 to 1% wt., and more preferably from 0.01 to 0.5% wt.
- Some embodiments of the invention may comprise a nonionic surfactant.
- any alkoxylated nonionic surfactants are suitable herein, for instance, ethoxylated and propoxylated nonionic surfactants.
- Alkoxylated surfactants can be selected from the classes of the nonionic condensates of alkyl phenols, nonionic ethoxylated alcohols, nonionic ethoxylated/propoxylated fatty alcohols, nonionic ethoxylate/propoxylate condensates with propylene glycol, and the nonionic ethoxylate condensation products with propylene oxide/ethylene diamine adducts.
- the condensation products of aliphatic alcohols with from 1 to 25 moles of alkylene oxide, particularly ethylene oxide and/or propylene oxide, are suitable for use herein.
- the alkyl chain of the aliphatic alcohol can either be straight or branched, primary or secondary, and generally contains from 6 to 22 carbon atoms. Also suitable are the condensation products of alcohols having an alkyl group containing from 8 to 20 carbon atoms with from 2 to 10 moles of ethylene oxide per mole of alcohol.
- Polyhydroxy fatty acid amides suitable for use herein are those having the structural formula I ⁇ CONR ⁇ Z wherein: R 1 is H, C1-C4 hydrocarbyl, 2-hydroxyethyl, 2- hydroxypropyl, ethoxy, propoxy, or a mixture thereof, for instance, C1-C4 alkyl, or Ci or C 2 alkyl; and R 2 is a C5-C31 hydrocarbyl, for instance, straight-chain C5-C19 alkyl or alkenyl, or straight-chain C9-C17 alkyl or alkenyl, or straight-chain Cn-Cn alkyl or alkenyl, or mixture thereof, and Z is a polyhydroxyhydrocarbyl having a linear hydrocarbyl chain with at least 3 hydroxyls directly connected to the chain, or an alkoxylated derivative (for example, ethoxylated or propoxylated) thereof. Z may be derived from reducing a sugar in a reductive amination reaction,
- Suitable fatty acid amide surfactants include those having the formula: R 1 CON(R 2 ) 2 wherein R 1 is an alkyl group containing from 7 to 21, or from 9 to 17 carbon atoms and each R 2 is selected from the group consisting of hydrogen, C 1 -C4 alkyl, C 1 -C4 hydroxyalkyl, and— (C 2 H 4 0) X H, where x is in the range of from 1 to 3.
- Suitable alkylpolysaccharides for use herein are disclosed in U.S. Pat. No. 4,565,647 to Llenado, herein incorporated by reference, having a hydrophobic group containing from 6 to 30 carbon atoms and a polysaccharide, e.g., a polyglycoside, hydrophilic group containing from 1.3 to 10 saccharide units.
- Alkylpolyglycosides may have the formula: R 2 0(C n H 2n O) t (glycosyl) x wherein R 2 is selected from the group consisting of alkyl, alkylphenyl, hydroxyalkyl, hydroxyalkylphenyl, and mixtures thereof in which the alkyl groups contain from 10 to 18 carbon atoms; n is 2 or 3; t is from 0 to 10, and x is from 1.3 to 8.
- the glycosyl may be derived from glucose.
- suitable nonionic surfactants are food safe nonionic surfactants.
- food safe nonionic surfactants are sucrose esters, such as sucrose cocoate available from Croda, and sorbitan esters, such as polyoxyethylene (20) sorbitan monooleate from J. T. Baker and polyoxyethylene (20) sorbitan monolaurate from Uniquema.
- sorbitan esters such as polyoxyethylene (20) sorbitan monooleate from J. T. Baker and polyoxyethylene (20) sorbitan monolaurate from Uniquema.
- Other examples of food safe nonionic surfactants are given in Generally Recognized As Safe (GRAS) lists, as described below.
- GRAS Generally Recognized As Safe
- the compositions may specifically contain alkyl polyglucoside ("APG") surfactant.
- APG alkyl polyglucoside
- Suitable alkyl polyglucoside surfactants are the alkylpolysaccharides that are disclosed in U.S. Pat. No. 5,776,872 to Giret et al; U.S. Pat. No. 5,883,059 to Furman et al; U.S. Pat. No. 5,883,062 to Addison et al; and U.S. Pat. No. 5,906,973 to Ouzounis et al, which are all incorporated by reference.
- Suitable alkyl polyglucosides for use herein are also disclosed in U.S. Pat. No.
- alkylpolyglucosides having a hydrophobic group containing from about 6 to about 30 carbon atoms, or from about 10 to about 16 carbon atoms and polysaccharide, e.g., a polyglycoside, hydrophilic group containing from about 1.3 to about 10, or from about 1.3 to about 3, or from about 1.3 to about 2.7 saccharide units.
- polysaccharide e.g., a polyglycoside, hydrophilic group containing from about 1.3 to about 10, or from about 1.3 to about 3, or from about 1.3 to about 2.7 saccharide units.
- polysaccharide e.g., a polyglycoside, hydrophilic group containing from about 1.3 to about 10, or from about 1.3 to about 3, or from about 1.3 to about 2.7 saccharide units.
- polyalkyleneoxide chain joining the hydrophobic moiety and the polysaccharide moiety.
- a suitable alkyleneoxide is ethylene oxide.
- Typical hydrophobic groups include alkyl groups, either saturated or unsaturated, branched or unbranched containing from about 8 to about 18, or from about 10 to about 16 carbon atoms.
- the alkyl group may contain up to about 3 hydroxy groups and/or the polyalkyleneoxide chain can contain up to about 10, or less than about 5, alkyleneoxide moieties.
- Suitable alkyl polysaccharides are octyl, nonyldecyl, undecyldodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, and octadecyl, di-, tri-, terra-, penta-, and hexaglucosides, galactosides, lactosides, glucoses, fructosides, fructoses and/or galactoses.
- Suitable mixtures include coconut alkyl, di-, tri- , terra-, and pentaglucosides and tallow alkyl terra-, penta-, and hexaglucosides.
- Suitable alkylpolyglycosides have the formula: R 2 0(C n H 2n O)t(glucosyl) x wherein R 2 is selected from the group consisting of alkyl, alkylphenyl, hydroxyalkyl, hydroxyalkylphenyl, and mixtures thereof in which the alkyl groups contain from about 10 to about 18, preferably from about 12 to about 14 carbon atoms; n is about 2 or about 3, preferably about 2; t is from 0 to about 10, preferably 0; and x is from about 1.3 to about 10, preferably from about 1.3 to about 3, most preferably from about 1.3 to about 2.7.
- the glycosyl is preferably derived from glucose.
- the alcohol or alkylpolyethoxy alcohol is formed first and then reacted with glucose, or a source of glucose, to form the glucoside (attachment at the 1 -position).
- the additional glycosyl units can then be attached between their 1 -position and the preceding glycosyl units 2-, 3-, 4- and/or 6-position, preferably predominantly the 2-position.
- a group of alkyl glycoside surfactants suitable for use in the practice of this invention may be represented by formula I below:
- R is a monovalent organic radical containing from about 6 to about 30 (preferably from about 8 to about 18) carbon atoms;
- R 2 is a divalent hydrocarbon radical containing from about 2 to about 4 carbon atoms;
- O is an oxygen atom;
- y is a number which has an average value from about 0 to about 1 and is preferably 0;
- G is a moiety derived from reducing a saccharide containing 5 or 6 carbon atoms; and
- x is a number having an average value from about 1 to 5 (preferably from 1.1 to 2);
- b is a number from 0 to 3x+l preferably
- R is generally the residue of a fatty alcohol having from about 8 to 30 or 8 to 18 carbon atoms.
- Suitable alkylglycosides include, for example, APG 325 (a C9-C11 alkyl polyglycoside available from Cognis Corporation), APG 625 (a C10-C16 alkyl polyglycoside available from Cognis Corporation), Dow TRITON CGI 10 (a Cs-Cio alkyl polyglycoside available from Dow Chemical Company), AG6202 (a Cg alkyl polyglycoside available from Akzo Nobel) GLUCOPON 425N (a Cg-Ci6 alkyl polyglycoside available from Cognis Corporation), GLUCOPON 215 (a Cg-Cio alkyl polyglycoside available from Cognis Corporation), GLUCOPON 225 (a C 8 -Ci 0 alkyl polyglycoside available from Cognis Corporation) and ALKADET 150 (a Cg-Cio alkyl poly
- a C 8 to C 10 alkylpoly-glucoside includes alkylpoly-glucosides wherein the alkyl group is substantially Cg alkyl, substantially C 10 alkyl, or a mixture of substantially Cg and C 10 alkyl. Additionally, short chain APGs such as C 4 and/or C 6 or mixtures thereof may be suitable for use with the present invention.
- the composition contains no enzymes, waxes, resins, nonionic surfactants, chlorite salts, or chloride dioxide.
- the composition may include one or more hydrotropes for solubilizing the other components of the composition upon addition of water.
- the hydrotrope solubilizing materials when used, include, but are not limited to water soluble salts of low molecular weight organic acids such as the alkali metal (sodium and/or potassium) salts of aromatic sulfonic acids.
- Specific exemplary materials include, but are not limited to, toluene sulfonate, cumene sulfonate, xylene sulfonate, naphthalene sulfonate, methyl naphthalene sulfonate, and combinations thereof.
- the hydrotropes may be present at a level of from about 0.1% to about 25%, from about 0.1% to about 20%, from about 0.1 % to about 15%, from about 0.1% to about 10%), from about 0.1 % to about 5%.
- the compositions may optionally contain one or more of the following adjuncts: colorants, perfumes, sequestrants, anti-corrosion agents, lubricants, binders, fillers, disintegration aids, preservatives, or desiccants.
- Other adjuncts include, but are not limited to, acids, electrolytes, stabilizers, thickeners, defoamers, cloud point modifiers, stain and soil repellants, odor control agents, brighteners, fluorescent whitening agents, and solid processing aids.
- Binders when used, include, but are not limited to, celluloses, starches, gums, and synthetic polymers.
- Solid processing aids when used, include, but are not limited to, flow aids, lubricants, anti-static agents, and glidants.
- Electrolytes when used, may include, but are not limited to, calcium, sodium and potassium chloride.
- Thickeners when used, include, but are not limited to, xanthan gum, calcium carbonate, cellulose, aluminum oxide, alginates, guar gum, methyl, ethyl, clays, and/or propyl hydroxycelluloses.
- Defoamers when used, include, but are not limited to, silicones, aminosilicones, silicone blends, and/or silicone/hydrocarbon blends.
- Preservatives when used, include, but are not limited to, mildewstat or bacteriostat, methyl, ethyl and propyl parabens, phosphates such as trisodium phosphate, short chain organic acids (e.g. acetic, lactic and/or glycolic acids), bisguanidine compounds (e.g. DANTAGARD and/or GLYDANT) and/or short chain alcohols (e.g. ethanol and/or isopropyl alcohol).
- mildewstat or bacteriostat methyl, ethyl and propyl parabens
- phosphates such as trisodium phosphate
- short chain organic acids e.g. acetic, lactic and/or glycolic acids
- bisguanidine compounds e.g. DANTAGARD and/or GLYDANT
- short chain alcohols e.g. ethanol and/or isopropyl alcohol
- the mildewstat or bacteriostat includes, but is not limited to, mildewstats (including non-isothiazolone compounds) including KATHON GC, a 5-chloro-2-methyl-4-isothiazolin-3-one, KATHON ICP, a 2-methyl-4-isothiazolin-3-one, and a blend thereof, and KATHON 886, a 5-chloro-2- methyl-4-isothiazolin-3-one, all available from Rohm and Haas Company; BRONOPOL, a 2-bromo-2-nitropropane 1, 3 diol, from Boots Company Ltd., PROXEL CRL, a propyl-p-hydroxybenzoate, from ICI PLC; NIPASOL M, an o-phenyl-phenol, Na + salt, from Nipa Laboratories Ltd., DOWICIDE A, a l,2-Benzoisothiazolin-3-one, from Dow Chemical Co., Nipacides from Clariant,
- compositions of the present invention may be used in the disinfection of dentures, although other uses of the composition (e.g., as a mouthwash, or for endodontic root canal disinfection) are also contemplated.
- the one-layered composition of the present invention is preferably in the form of a single-layer substantially homogenous tablet, although it may alternatively take the form of a powder or granules.
- the present invention is directed to composition claims and methods of using the composition. Generally, methods steps of using the composition include contacting a specific surface (e.g., dentures) with the composition in water so as to clean the specific surface with the composition.
- compositions in Table 1 were initially prepared as powders.
- the powders in the above table were prepared and dissolved in 150 mL of water to make a cleaning solution for dentures and dental appliances. All of the powders displayed effervescence and created foam to signal cleaning power. They also released the indicated amount of hypochlorous acid to disinfect and remove stains, plaque and biofilms.
- the pH of the cleaning solution was between pH 5.5 and pH 6.5.
- compositions 5-19 are described in Tables 2-4, below.
Abstract
Description
Claims
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US35143310P | 2010-06-04 | 2010-06-04 | |
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WO2013050562A1 (en) * | 2011-10-05 | 2013-04-11 | Lohas Products Gmbh | Composition comprising anolyte and carbonate |
US20140255476A1 (en) * | 2011-08-19 | 2014-09-11 | University Of Washington Through Its Center For Commercialization | Compositions, devices, and methods for treating infections |
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WO2008045435A1 (en) * | 2006-10-09 | 2008-04-17 | The Procter & Gamble Company | Calcium hypochlorite for use in a laundry washing process |
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US4671972A (en) * | 1984-03-16 | 1987-06-09 | Warner-Lambert Company | Controlled release encapsulated hypochlorite deactivator for use in denture cleansers |
US5599781A (en) * | 1995-07-27 | 1997-02-04 | Haeggberg; Donna J. | Automatic dishwashing detergent having bleach system comprising monopersulfate, cationic bleach activator and perborate or percarbonate |
US20020198128A1 (en) * | 1997-03-07 | 2002-12-26 | The Procter & Gamble Company | Bleach compositions containing metal bleach catalyst, and bleach activators and/or organic percarboxylic acids |
US20050143274A1 (en) * | 2003-12-17 | 2005-06-30 | Ghosh Chanchal K. | Compositions and methods of delivering bleaching agents to teeth |
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US20140255476A1 (en) * | 2011-08-19 | 2014-09-11 | University Of Washington Through Its Center For Commercialization | Compositions, devices, and methods for treating infections |
US10570390B2 (en) * | 2011-08-19 | 2020-02-25 | Rodney J. Y. Ho | Compositions, devices, and methods for treating infections |
WO2013050562A1 (en) * | 2011-10-05 | 2013-04-11 | Lohas Products Gmbh | Composition comprising anolyte and carbonate |
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