GB2623945A - Concentrated multipurpose hard surface cleaners - Google Patents
Concentrated multipurpose hard surface cleaners Download PDFInfo
- Publication number
- GB2623945A GB2623945A GB2215921.4A GB202215921A GB2623945A GB 2623945 A GB2623945 A GB 2623945A GB 202215921 A GB202215921 A GB 202215921A GB 2623945 A GB2623945 A GB 2623945A
- Authority
- GB
- United Kingdom
- Prior art keywords
- composition
- composition according
- prior
- thickener
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- XCOBTUNSZUJCDH-UHFFFAOYSA-B lithium magnesium sodium silicate Chemical compound [Li+].[Li+].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Na+].[Na+].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3 XCOBTUNSZUJCDH-UHFFFAOYSA-B 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- NEMFQSKAPLGFIP-UHFFFAOYSA-N magnesiosodium Chemical compound [Na].[Mg] NEMFQSKAPLGFIP-UHFFFAOYSA-N 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 239000001525 mentha piperita l. herb oil Substances 0.000 description 1
- 239000001683 mentha spicata herb oil Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- OSWPMRLSEDHDFF-UHFFFAOYSA-N methyl salicylate Chemical compound COC(=O)C1=CC=CC=C1O OSWPMRLSEDHDFF-UHFFFAOYSA-N 0.000 description 1
- XJRBAMWJDBPFIM-UHFFFAOYSA-N methyl vinyl ether Chemical compound COC=C XJRBAMWJDBPFIM-UHFFFAOYSA-N 0.000 description 1
- 239000010466 nut oil Substances 0.000 description 1
- 239000003605 opacifier Substances 0.000 description 1
- 239000010502 orange oil Substances 0.000 description 1
- 239000003002 pH adjusting agent Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 235000019477 peppermint oil Nutrition 0.000 description 1
- 239000000546 pharmaceutical excipient Substances 0.000 description 1
- 229960005323 phenoxyethanol Drugs 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000010665 pine oil Substances 0.000 description 1
- 239000001631 piper nigrum l. fruit oil black Substances 0.000 description 1
- 239000001738 pogostemon cablin oil Substances 0.000 description 1
- 229920001983 poloxamer Polymers 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 238000001303 quality assessment method Methods 0.000 description 1
- 238000012207 quantitative assay Methods 0.000 description 1
- 239000004172 quinoline yellow Substances 0.000 description 1
- 235000012752 quinoline yellow Nutrition 0.000 description 1
- 229940051201 quinoline yellow Drugs 0.000 description 1
- IZMJMCDDWKSTTK-UHFFFAOYSA-N quinoline yellow Chemical compound C1=CC=CC2=NC(C3C(C4=CC=CC=C4C3=O)=O)=CC=C21 IZMJMCDDWKSTTK-UHFFFAOYSA-N 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
- 239000010669 rosewood oil Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000010671 sandalwood oil Substances 0.000 description 1
- 239000008159 sesame oil Substances 0.000 description 1
- 235000011803 sesame oil Nutrition 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 1
- 229940080313 sodium starch Drugs 0.000 description 1
- 229920003109 sodium starch glycolate Polymers 0.000 description 1
- 239000008109 sodium starch glycolate Substances 0.000 description 1
- 229940079832 sodium starch glycolate Drugs 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000012453 solvate Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 235000019721 spearmint oil Nutrition 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 239000004149 tartrazine Substances 0.000 description 1
- UJMBCXLDXJUMFB-GLCFPVLVSA-K tartrazine Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)C1=NN(C=2C=CC(=CC=2)S([O-])(=O)=O)C(=O)C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 UJMBCXLDXJUMFB-GLCFPVLVSA-K 0.000 description 1
- 235000012756 tartrazine Nutrition 0.000 description 1
- 229960000943 tartrazine Drugs 0.000 description 1
- 239000010677 tea tree oil Substances 0.000 description 1
- 229940111630 tea tree oil Drugs 0.000 description 1
- 239000010678 thyme oil Substances 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
- JXVGWAIUCIHLLC-UHFFFAOYSA-K trisodium 2-hydroxypropane-1,2,3-tricarboxylate 2-hydroxypropane-1,2,3-tricarboxylic acid dihydrate Chemical compound O.O.[Na+].[Na+].[Na+].OC(=O)CC(O)(CC(O)=O)C(O)=O.OC(CC([O-])=O)(CC([O-])=O)C([O-])=O JXVGWAIUCIHLLC-UHFFFAOYSA-K 0.000 description 1
- 239000010679 vetiver oil Substances 0.000 description 1
- 239000000341 volatile oil Substances 0.000 description 1
- 239000009637 wintergreen oil Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/662—Carbohydrates or derivatives
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D11/00—Special methods for preparing compositions containing mixtures of detergents
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/0005—Other compounding ingredients characterised by their effect
- C11D3/0036—Soil deposition preventing compositions; Antiredeposition agents
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/22—Carbohydrates or derivatives thereof
- C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
- C11D2111/14—Hard surfaces
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Molecular Biology (AREA)
- Detergent Compositions (AREA)
Abstract
A concentrated cleaning composition comprising at least one organic acid, thickener, non-ionic surfactant and auxiliary agent. The composition has a viscosity ranging between 150 to 800 centipoise (cP) for at least 12 weeks as measured under conditions: 20 oC, Viscometer Brookfield LVDV, Spindle No. 2, at 50 rpm. The thickener may comprise a gum such as xanthan present between 0.01 to 2 wt. %. The organic acid may be citric acid and present between 4.5 and 75 wt. %. The non-ionic surfactant may be an alkylpolyglucoside and may be present between 0.2 and 10 wt. %. The auxiliary agent may be a soil repelling polymer such as a modified starch or polyvinylpyrrolidone present between 0.02 to 0.35 wt. %.
Description
CONCENTRATED MULTIPURPOSE HARD SURFACE CLEANERS
TECHNICAL FIELD
The present disclosure relates to concentrated multipurpose hard surface cleaners containing an organic acid, an alkyl glucoside, and a thickener.
BACKGROUND
There are a variety of hard surface cleaning compositions that have been described in the art. Such compositions are typically low viscosity ready to use combinations of a bleach material, surfactants, fragrances, and dyes producing their desired aesthetic, cleaning, disinfecting, or deodorizing effects. Concentrated formulations are rare due to their corrosive and undesirable safety profile.
As the industry is moving towards environmental friendlier formulations and sustainable solutions, there is a need for concentrated non-corrosive cleaner compositions that can provide such unmet need for consumers. The invention described herein below addresses such short comings in the art.
SUMMARY OF THE INVENTION
The present invention can be characterized as an instrument of change in consumer's patten of use towards environmentally friendlier and sustainable options. The present invention provides concentrated non-corrosive hard surface cleaning compositions that can be used as a refill stock for generating a diluted ready to use cleaning composition for hard surfaces. In addition, the present invention contains less amount of plastic and paper for packaging giving the consumers an option to reuse the respective dispensing containers.
In the first aspect of the present invention is directed to concentrated bathroom cleaning compositions that contains at least one organic acid, at least one thickener, at least one non-ionic surfactant, and at least one auxiliary agent, wherein the composition having a viscosity ranging between 150 to 800 cP as measured under conditions: 20°C, Viscometer Brookfield LVDV, Spindle No. 2, at 50 rpm, expressed in cP or centipoise or milli-pascal per second (1 cP = 1 mPa.$), for at least 12 weeks, 52 weeks, 112 weeks, preferably at least 240 weeks. In some embodiments, the concentrated compositions have a pH ranging between 2.0 to 4.0 at room temperature, and a density ranging between 1.1 to 1.4 g/ml at 20°C. In some embodiments, the composition is substantially free of any anionic, cationic and/or amphoteric surfactants. In some embodiments, the non-ionic surfactant is the sole source of a surfactant, and the composition is free of any anionic, cationic and/or amphoteric surfactants.
In some embodiments of the first aspect of the invention, the organic acid may be citric acid, acetic acid, lactic acid, formic acid, oxalic acid, uric acid, malic acid, sorbic acid and glycolic acid. In preferred embodiments, the organic acid is citric and glycolic acids with citric acid being the most preferred acid. In some embodiments, the concentration of the organic acid in the compositions according to the present invention ranges between about 2.5% w/w to about 45% w/w, preferably between about 5% to about 42.5% w/w, most preferably between 20% w/w to 40% w/w.
In some embodiments the thickener is a gum based thickener. In some embodiments, the gum-based thickener is selected from the group consisting of xanthan, alginic, guar gum, locust bean gum, diutin, carrageenan, arabic and acacia gum. Particularly preferred is xanthan gum (CAS# 11138-66-2). In some embodiments the thickeners are present in amounts ranging between 0.01% w/w to about 1% w/w, preferably in the range of 0.07 to about 0.5% w/w. In some embodiment, the gum based thickener has a molecular weight ranging between 5,000 to about 5,000,000 daltons.
In some embodiments, the non-ionic surfactant may be an alkyl polyglucoside C6-C16 alkyl polyglucoside, preferably C8-C10 alkyl polyglucoside. In some embodiments, the alkyl polyglucoside may be at least one of the following: decyl glucoside, capryl/caprylyl glucoside, myristyl glucoside, coco glucoside, caprylyl/myristyl glucoside and lauryl glucoside. More preferred of the alkyl polyglucosides is caprylyl/capryl glucoside and caprylyl/myristyl glucoside.
In some embodiments, the concentration of the alkyl polyglucoside may range between about 0.5 w/w to about 7% w/w, preferably between 0.5% w/w to about 5% w/w.
In second aspect of the invention, the compositions is a concentrated non-corrosive aqueous composition comprising (a) about 5% to about 40% w/w of citric acid; (b) about 0.02% to 0.5% by w/w of a thickener; (c) about 0.5% to 5.0% w/w of C8-C10 alkyl polyglucoside; nonionic surfactant; (d) about 0.02% to 0.35% by weight of a soil-repelling polymer. In other embodiments, the composition may further contain water, trisodium citrate, sodium hydroxide.
In some embodiments, the amount of water may range between 45 to 95% by weight. In a preferred embodiment, the amount of water ranges between about 45% to about 55% by weight. In some embodiments, the composition is free of any other cationic, anionic or amphoteric surfactants. In some embodiments, the composition is a homogenous composition having no lumps after at least 52 weeks storage at the room temperature.
In some embodiments, the composition according to the present invention consists essentially of: ( a) from 35% to 45% w/w of citric acid, (b) from 0.15% to 0.25% w/w of xanthan gum, (c) from 3.5% to 4.5% w/w of C8-C10 alkyl polyglucoside, (d) from 0.20% to 0.30% of modified starch polymer as the soil-repelling polymer, (e) from 4.5% to 5.5% w/w sodium hydroxide, and optionally a perfume or a dye ingredient, wherein the composition has a viscosity ranging between 150 to 800 cP.
In third aspect, the present invention provides for methods of cleaning hard surfaces by further and applying the diluted composition to the hard surfaces of interest.
In fourth aspect, the present invention is directed to methods of manufacturing a hygienic composition in a container comprising the steps of placing the concentrated compositions according to the first aspect of the present invention to a container and diluting the concentrated composition by adding water to the container and mixing the resulting composition.
In another aspect, the present invention provides for methods of cleaning hard surfaces in bathrooms such as toilet bowls, bathroom tiles and floors or the like by applying the cleaning composition according to the fourth aspect of the present invention. In some embodiments, the method further includes the step of applying water to remove undesirable scaling and odor in the area of interest.
DETAILED DESCRIPTION OF THE INVENTION
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as is commonly understood by one of skill in the art to which this invention belongs and shall be understood to have the meanings described below. All publications and patents referred to herein are incorporated by reference in their entirety. Unless otherwise specified, a reference to a particular compound includes all ionic, salt, solvate (e.g., hydrate), protected forms, and other stereoisomers thereof, isomeric forms, including racemic and other mixtures thereof.
As used herein, "about" will mean up to plus or minus 5% of the particular term.
As used herein, "consisting essentially of" refers to excluding other active ingredients but including the recited optional excipients. As used herein, "consist of" or "consisting of" refers to compositions that only includes the recited ingredients.
By the term "substantially free" it is meant that the final composition is free of any traces of the identified ingredient to the extent that it could be detected by general quantitative assays known in the art for detection of such ingredient in the final composition or if detected, but less than 1% of the total weight of the respective composition only in the form of residual content of the ingredient or the composition containing such ingredient. For example, the phrase substantially free of amphoteric surfactant would mean that the respective composition contains less than 1% of any amphoteric surfactant. On the other hand, the phrase "free of" reflects that the claim is free of any traces of the ingredient at issue.
As used herein, unless specifically defined, the term "viscosity" refers to the dynamic viscosity, as measured using a Brookfield viscometer (spindle no. 2, at 50 rpm, at 20°C).
All ranges described herein are meant to be inclusive of all amounts therebetween. For example, a range of dispersant system from 40% to 45% by weight is intended to cover all amounts or concentrations therebetween including 40%, 41%, 42%, 43%, 44% and 45% by 30 weight.
The present inventors have discovered combinations of organic acids, thickeners, non-ionic surfactants, providing a concentrated non-corrosive hard surface cleaning compositions that achieve enhanced hygienic activities and sanitation when applied to hard surface areas of the bathroom. Accordingly, at least one aspect of the present invention is unique combinations of at least one organic acid, at least one thickener, at least one non-ionic surfactant, and at least one auxiliary agent, wherein the composition having a viscosity ranging between 150 to 800 cP as measured under conditions: 20°C, Viscometer Brookfield LVDV, Spindle No. 2, at 50 rpm, expressed in cP or centipoise or milli-pascal per second (1 cP = 1 mPa.$) for at least 12 weeks, 52 weeks, 112 weeks, preferably for at least 240 weeks.
In some embodiments, the concentrated compositions have a pH ranging between 2.0 to 4.0 at room temperature, and a density ranging between 1.1 to 1.4 g/ml at 20°C. In some embodiments, the composition is substantially free of any anionic, cationic and/or amphoteric surfactants. In some embodiments, the non-ionic surfactant is the sole source of a surfactant and the composition is free of any anionic, cationic and/or amphoteric surfactants.
In second aspect of the invention, the compositions is a concentrated non-corrosive aqueous composition comprising (a) about 5% to about 40% w/w of citric acid; (b) about 0.02% to 0.5% by w/w of a thickener; (c) about 0.5% to 5.0% w/w of C8-C10 alkyl polyglucoside as the non-ionic surfactant; (d) about 0.17 to 0.35 % by weight of xanthan gum. In other embodiments, the composition may further contain water, trisodium citrate, sodium hydroxide.
In some embodiments, the amount of water may range between 45 to 95% by weight.
In a preferred embodiment, the amount of water ranges between about 45% to about 55% by weight. In some embodiments, the composition is free of any other cationic, anionic or amphoteric surfactants. In some embodiments, the composition is a homogenous composition having no lumps after at least 52 weeks storage at the room temperature.
In some embodiments, the concentrated non-corrosive aqueous composition of the present invention contains (a) about 30% to about 40% w/w citric acid, (b) about 0.1% to about 0.3% w/w xanthan gum, (c) about 3% to about 5% w/w of C8-C10 alkyl polyglucoside, (d) about 0.15% to about 0.35% modified starch polymer, (e) about 3% to about 6% w/w sodium hydroxide, and optionally a perfume or a dye ingredient.
In some embodiments, the composition according to the present invention consists essentially of: ( a) from 35% to 45% w/w of citric acid, (b) from 0.15% to 0.25% w/w of xanthan gum, (c) from 3.5% to 4.5% w/w of C8-C10 alkyl polyglucoside, (d) from 0.2% to 0.3% of modified starch polymer, (e) from 4.5% to 5.5% w/w sodium hydroxide, and optionally a perfume or a dye ingredient, wherein the composition has a viscosity ranging between 150 to 800 cP and a pH ranging between 2 to 4. In another embodiment, such concentrated composition may further be diluted with water to form a ready to use formula.
In other embodiment, the concentrated composition consists of (a) about 37.5% to about 40% w/w citric acid, (b) about 0.15% to about 0.25% w/w xanthan gum, (c) about 3.5% to about 4.5% w/w of C8-C10 alkyl polyglucoside, (d) about 0.2% to about 0.3% modified starch polymer, (e) about 4.5% to about 5.5% w/w sodium hydroxide, and a perfume or a dye ingredient. In another embodiment, such concentrated composition may further be diluted with water to form a ready to use formula.
For the sake of clarity, any disclosed ranges provided herein include all ranges and values therebetween. Thus, for example a viscosity that ranges between 150 to 800 cP, includes all values and ranges therebetween including 151, 180, 190, 215, 230, 240, 250, 270, 280, 350, 375, 450, 500, 550, 600, 650, 700, 750, and so on.
In some embodiments, the composition of the present invention further contains a biocidal agent, fragrance, a dye, a binder, a bittering agent, acidity regulators, pH adjustor, a chelating agent, anti-caking agents, suitable fillers, or any mixtures thereof. In some embodiments, the composition is a solid lavatory cleaning composition containing a dispersant, a thickener, a non-ionic surfactant, a biocide material and a fragrance. In some embodiments, the biocide agent may be a single quaternary ammonium or a combination of quaternary ammonium material that provides germicidal activities.
Organic Acids The organic acid according to the present invention are preferably those that are not corrosive at concentration that can provide sufficient cleaning properties. Accordingly, the organic acids of choice are citric acid, acetic acid, lactic acid, formic acid, oxalic acid, uric acid, malic acid, sorbic acid glycolic acid and any combinations thereof at such concentrations that do not corrosive. In preferred embodiments, the organic acid is citric and glycolic acids with citric acid being the most preferred acid. Suitable concentration of the organic acid in the compositions according to the present invention ranges between about 4.5% w/w to about 75% w/w; between about 5% to about 50% w/w; between about 30% to about 50%; between 35% to 45%; but preferably between 37.5% w/w to 40% w/w. In most preferred embodiment, the pH of the concentrated composition is in the range of 2.0-4.0, preferably above 2.0 but less than 3.5.
In most preferred embodiments, the concentrated compositions according to the present invention contains about 30% to about 50% w/w of the organic acid. If citric acid is used, the preferred concentrations of the citric acid in the final concentrated formulation is 20 between 35% w/w to about 45% w/w.
In other embodiments, the concentrated compositions may be diluted with additional water, or other aqueous solvents. In such cases, the concentration of the citric acid may range between 5% to about 7.5% w/w.
Thickeners In certain aspects of the present invention, the inventors have discovered that use of any thickener may not provide the suitable viscosity and stability for the intended purposes of the presently describe non-corrosive concentrated compositions. Proper thickeners according to the present invention are those that would provide suitable viscosity for dispensing through a trigger system, at a concentration levels below 2% w/w, preferably at a concentrations level below 1% w/w, and more preferably at concentration level below 0.5%. To that end, the inventors have discovered that only a selected group of thickeners can provide the desired viscosity and stability. Optimal level of the viscosity of the liquid composition according to the present invention may range from 150 to 800 cP or from 200 to 500 cP, at 20° C as measured with Brookfield Viscometer Brookfield LVDV, Spindle No. 2, at 50 rpm as specified.
In some embodiments, the compositions of the present invention contain a gum-based thickener selected from the group consisting of a xanthan, alginic, guar gum, hydroxypropyl guar gum, locust bean gum, diutin, carrageenan, arabic and acacia gum or any combinations thereof.
In some embodiments, the composition can further contain a second thickener such methyl cellulose, crystalline cellulose, hydroxyethyl cellulose, hydroxymethyl cellulose, hydroxypropyl cellulose, methyl vinyl ether/maleic anhydride copolymer, dimethyl polysiloxane, sodium starch glycolate, sodium starch phosphate ester, sodium polyacrylate, carboxymethyl guar gum, methyl cellulose, crystalline cellulose, hydroxyethyl cellulose, hydroxymethyl cellulose, hydroxypropyl cellulose, polyvinylpyrrolidone, polyvinyl alcohol (PVA), clay materials, acid derivatives, acid copolymers, urethane associate thickeners (UAT), polyether urea polyurethanes (PEUPU), polyether polyurethanes (PEPU), or an inorganic thickener such as sodium magnesium silicate, lithium magnesium sodium silicate, acrylic acid/behenic acid copolymer, calcium carbonate, calcium silicate, magnesium silicate, silica powders, various glasses, amorphous hydrated silicic acid or fumed silica In certain embodiments, the gum based thickener may have a molecular weight ranging from 50,000 to about 5,000,000; 75,000, to 4,000,000; preferably between 100,000 to 2,500,000 and more preferably between 1,000,000 to 2,000,000 g/mol (or 1 and 2 million Da!tons). In certain embodiment, the gum-based thickener has a viscosity ranging between 1000-3500 for 1% solution when measured at 25°C after 2 hours with Brookfield viscometer, LVDV, #3 spindle at 60 RPM.
In some embodiments, the thickeners is xanthan gum in amounts ranging between 0.01% w/w to 2% w/w, preferably in the range of 0.07 to 0.5% w/w. In some embodiments, the xanthan gum in the concentrated composition according to the present invention is present in amount ranging between about 0.15 to about 0.25 % w/w. In other embodiments, the ratio between the gum-based ingredient and the organic acid is in the range of 1:150 respectively to about 1:250, preferably in the range of 1:175 to about 1: 195. In certain embodiments, wherein the thickener is xanthan gum and the organic acid is citric acid, the ratio between xanthan gum to citric acid can range between 1:175 to 1:195.
Surfactants The non-ionic surfactant used in the present invention are preferably an alkylpolyglucoside. Suitable alkyl polyglucosides include C6-C16 alkyl polyglucoside, preferably C8-C10 alkyl polyglucoside. In some embodiments, the alkyl polyglucoside may be at least one of the following: decyl glucoside, capryl/caprylyl glucoside, myristyl glucoside, coco glucoside, caprylyl/myristyl glucoside and lauryl glucoside. More preferred of the alkyl polyglucosides is caprylyl/capryl glucoside and caprylyl/myristyl glucoside.
In some embodiments, the concentration of the alkyl polyglucoside may range between about 0.5 w/w to about 7% w/w, preferably between 0.5% w/w to about 5% w/w. in preferred embodiments, the non-corrosive concentrated composition contains about 3% to about 5% w/w of C8-C10 alkyl polyglucoside. In more preferred embodiment, the non-corrosive concentrated composition according to the present invention contains about 3.5% to about 4.5% w/w of C8-C10 alkyl polyglucoside.
Other non-ionic surfactant that may be used include a great variety of alkoxyiated alcohols, especially ethoxylated and/or propoxylatecl alcohols, is conveniently commercially available. , preferred alkoxylated alcohols for use herein are nonionic surfactants according to the formula RO(E.)e(P}pH where H is a hydrocarbon chain of from 2 to 24 carbon atoms, E is ethylene oxide and P is propylene oxide, and e and p which represent the average degree of, respectively ethoxylation and propoxylation, are of from 0 to 24 (with the sum of e+p being at least I.). Preferably, the hydrophobic moiety of the nonionic compound can be a primary or secondary, straight or branched alcohol having from 8 to 24 carbon atoms.. Such suitable nonionic surfactants are commercially available under such trade names as Pluronics'? or Lutensol®.
Biocide material The presence of biocidal material in the compositions according to the invention is optional. In certain embodiments, the compositions of the present invention contain a biocide such as any one or more of the antiviral, antimicrobial, antibacterial, antifungal, antiprotozoal, antiarcheal, and/or antiparasitic activities that is selected from quaternary ammonium-based biocides. Examples of such quaternary ammonium biocides are n-alkyl dimethyl benzyl ammonium chloride, n-alkyl, dimethyl ethyl benyl ammonium chloride, dodecyl dimethyl ammonium chlorides (DDAC), cetyl trimethyl ammonium chloride (CTAC), benzalkonium chloride (BAC), or any mixtures thereof. In certain embodiments, the biocide material includes n-alkyl dimethyl benzyl ammonium chloride, n-alkyl, dimethyl ethyl benyl ammonium chloride, either alone or in combination together as provided under the BTC® 2125M series by Stepan.
In some embodiments, the quaternary ammonium biocide having at least one alkyl chain having a length of C12-Cis, more preferably a mixture of Cu-Cm, with concentration of Cu ranging between 5% to about 70% by weight, and concentrations of C14 ranging between 3070% by weight, preferably between 60-68% by weight or any combinations thereof.
Optional Auxiliary Ingredients In some embodiments, the present composition may include one or more additional optional ingredients selected from the group consisting of soil-repelling polymers, dye, a fragrance, a chelating agent, preservatives, bitterness flavorant, radical scavengers, hydrotropes, anticorrosion agents, opacifiers, brighteners, abrasives such as silica, kaolin, talc or an absorbent.
Soil-repelling polymers are those polymers that reduce soil adhesion on hard surfaces by generally leaving a polymeric film on hard surfaces and enhancing surface shine. They include amphoteric modified starch polymers or the like that are capable of boosting shining effects, providing long lasting cleaning, glossy effect by hydrophilizing hard surfaces and reducing soil adhesion on such surfaces. Suitable starch polymers are plant-based, 2-phenoxyethanol derived starch, such as bio-based polymers commercially available as Polyquart® Ecoclean Max A by BASF. In some embodiments, modified starch polymer may be used at from 0.02% to 0.35% w/w, preferably between 0.15% to 0.25% and most preferably at 0.20% w/w. Other suitable soil-repelling polymers include PVP (polyvinylpyrrolidone) commercially available as Sorez hs 205 ® from SP Freetown Fine Chemicals Inc. Suitable dyes that may be used in this invention include, but are not limited to Sanolin Blue EHRL, Sanolin Blue NBL, Sanolin Lave Blue A liq, Sanolin Tartrazine X 90 and Sanolin Quinoline Yellow 70 (Clariant), Duasyn Acid Blue AE 03 or the like.
Suitable fragrances that may be used in this invention includes natural or synthetic fragrances inducing essential oils derived from herbs, flowers, trees, and other plants. Such oils include for example, rose oil or peppermint oil, sesame oil, macadamia nut oil, tea tree oil, evening primrose oil, Spanish sage oil, Spanish rosemary oil, coriander oil, thyme oil, pimento berries oil, rose oil, anise oil, balsam oil, bergamot oil, rosewood oil, cedar oil, chamomile oil, sage oil, clary sage oil, clove oil, cypress oil, eucalyptus oil, fennel oil, sea fennel oil, frankincense oil, geranium oil, ginger oil, grapefruit oil, jasmine oil, juniper oil, lavender oil, lemon oil, lemongrass oil, lime oil, mandarin oil, marjoram oil, myrrh oil, neroli oil, orange oil, patchouli oil, pepper oil, black pepper oil, petitgrain oil, pine oil, rose otto oil, rosemary oil, sandalwood oil, spearmint oil, spikenard oil, vetiver oil, wintergreen oil, or the like known to those of skill in the art.
Methods of manufacturing and use of the Composition In other aspects, the present invention provides for methods of manufacture a hygienic composition comprising the steps of manufacturing the concentrated composition by mixing the ingredients by methods known in the art and subsequently diluting the concentrated composition with sufficient water to reach an organic acid level ranging between 4 to 8 w/w in the resulting composition, preferably at a temperature ranging between 20° C to 25 °C, and shaking the resulting composition it to assume a viscosity ranging from 150 to 800 cP, 250 to 550 cP, and preferably 300 to 400 cP.
In some embodiments, the concentrated composition according to the present invention can achieve a shelf life of at least 12 weeks, 52 weeks, 112 weeks, preferably at least 240 weeks, wherein when diluted with water after such shelf-life it can provide a viscosity ranging between 150 to 800 cP, 250 to 550 cP, and preferably 300 to 400 cP.
In some embodiment, the diluted liquid aqueous cleaning composition derived from the concentrated composition may contain (a) from about 4.00% to about 7.5% by weight of the organic acid; (b) from about 0.015% to about 0.04% by weight of a thickener; (c) from about 0.30% to about 0.75% by weight of a non-ionic surfactant; and (d) from about 85% to about 95% by weight of a water, wherein the diluted liquid aqueous composition having a viscosity ranging from 3 cP to 10 cP at 20°C as measured using spindle 2 at 50 rpm on a Brookfield viscometer. In some embodiments, the viscosity of the diluted liquid aqueous composition ranges between 4.5 to about 6.5. In some embodiments, the liquid composition further contains a dye, a fragrance and a pH modifier.
In another aspect, the present invention provides for methods of cleaning hard surfaces in bathrooms such as toilet bowls, urinal, lavatory fixtures, bathroom, showers, washbasin/sink, bathroom fittings (shower head, faucets) and flooring tiles and floors by mixing the concentrated liquid composition according to the present invention, in a container diluting the composition with water to reach 750 ml, and applying the resulting cleaning composition to the area of interest and optionally applying water to remove undesirable scaling and odor in the same area.
Hard surfaces according to this invention include such material as bricks, ceramic, cement, crystal, diamond, glass, latex, marble, metallic (preferably non-copper or non-brass), pebbles, porcelain, polymeric and quarry tiles, and natural stone. By way of example, hard surfaces are preferably non-porous hard surfaces and may include surfaces composed of plastic such as PMMA plates, molten polycarbonate, foamy PVCs glazed, polyester, vinyl; vinyl floorings such as Polyflors, including Polyflor oatmeal 9240 yellow, Polyflor Frosted Mint PC2, Polyflor Gray; metals such as stainless steel, Aluminum; Counter Tops such as laminated MDF; Tiles such as refrigerator top, baked enamel, ceramic bathroom shiny tiles, ceramic bathroom matt ties, terra cott, tempered glass, mirror; Floor panels, such as Ash, Oak or Bamboo floor panels; bathroom fittings particularly chrome bathroom fittings; and fiberglass, FormicaTM, Carla nu" or lavatory fixtures; and other hard surfaces known to the industry.
In some embodiments, the concentrated compositions according to the present invention are manufactured by first adding water into a mixing tank at temperatures ranging between 22 °C-25 °C. Low water temperature prolongs the time needed to dissolve the ingredients. The mixer is subsequently turned on and set at moderate speed to avoid foaming.
In the next step, the gum-based thickener such as xanthan gum is added and mix until dissolved followed by adding the organic acid (i.e. Citric acid) to form a uniform solution. NaOH is then added slowly formula while controlling temperature and mix for 5 min. In the next step, the Alkylpolyglucoside is added and mixed for next 5 min or until uniform. In the next step, soil-repelling polymers such as derivatized starch polymer is added and mixed for next 5 min or until uniform followed by the perfume. The entire mixture is mixed for 15minutes until product is completely homogenous. The concentrated composition may further be diluted with water to prepare the ready to use formula.
Examples
The foregoing examples provide a description of preferred embodiments of the first aspect of the present invention in concentrate form and the resulting diluted composition forming a homogenous aqueous liquid composition having a viscosity of ranging 5 to 6 cP. Table 1 below provides the components and the preferred ranges of the concentrated composition according to the present invention as well as the diluted ready to use version at pH ranging 2.5 to 4. The concentrated composition were manufactured according to the process steps set forth above and then diluted in 750 ml of water to provide the ready to use composition.
Table 1
Concentrated Diluted ready to use % in % in % in % in formula A formula B formula A formula B up to 100 Up to 100 up to 100 up to 100 Function DEIONI5EDWATE EUROPE a-Trisodium citrate was fo med after the addition of the citric acid anhydrous into the solvent and allowing citric acid to react with NaOH in the mixture. The concentration of the respective ingredients where measured in the concentrated composition.
b-Modified starch polymer used in this example was Polyquart Ecoclean Max A by BASF The inventors further compared various thickeners and their performance against each other when combined with citric acid, polyglucoside and the modified starch polymer. The list of the thickeners used in these examples are identified in Table 2 below all of which are commercially available by various suppliers:
Table 2
Thickener trade name Thickener chemistry Supplier Xanthan Gum Grade Xanthan Gum JBL/Jungnunzlauer Transparent Rheovis TTA® Aqueous dispersion based on 2- BASF propenoin acid, 2-methyl-, polymer with butyl 2- propenoate and ethyl-2-propenoate Acusol 880 ® PEG Copolymer DOW Carbopol Aqua CC ® polymer Crosslinked polyacrylic Lubrizol acid polymer Carbopol 674 ® polymer Crosslinked polyacrylic Lubrizol acid polymer Carbopol 691® polymer Crosslinked polyacrylic Lubrizol acid polymer Carbopol EZ-4 ® Crosslinked polyacrylic Lubrizol acid polymer Solvasol 243 ® Alcohols, C12-14 (even Sasol numbered), ethoxylated (CAS: 68439-50-9) 38.3867 34.26- 6.045 5.39-5.42 34.43 5.32-5.54 0.84-0.87 4.2000 4.2000 0.6614 0.6614 0.1500 0.1500 0.0236 0.0236 0.0315 0.0315 0.2000 0.2000 5.0496 0.0000 0.7952 0.0000 0.2500 0.2500 0.0394 0.0394 241:K4 perfume thickener Bang Kant :gym Med fled Starch polym ItITRICAC.
TRiso DUNI CITRATE DIFIYDRATE c-8-c1a ALKYL POLYGLUCOSIDE :tricargartie*.-.
polyrne Natrosol 250 HHRP ® Hydroxyethyl cellulose Ashland Table 3 provides the composition according to the present invention, Example 1, and various comparative examples. The compositions of Table 3 were formulated according to the process steps described above, except that Examples 2-10 differ in the type and content of the thickener used. It was surprisingly observed that composition of the Examples 2-10 are inferior as compared to the composition of Example 1 by failing to meet various feasibility criteria.
Table 3
Citric Acid Trisodium Citrate Dihydrate C8-C10 Alkyl Polyglucoside (Glucopon 215 UP) Xanthan Gum Rheovis TEA Accusol 880 Carbopol Aqua CC polymer Carbopol 674 polymer Carbopol 691 polymer Carbopol EZ-4 Solvasol 243 Hydroxyethyl cellulose Modified Starch Polymer Fragrance Total 100 ml Viscosity (cP), 262 Failed I Failed Failed Failed Failed Failed Failed Failed Failed a-Measured post reaction after the addition of citric acid anhydrous into the mixture.
b-Measured within the first 3 weeks.
c-By "Failed" it is meant that the formula failed the feasibility criteria for various reasons including but not limited to proper viscosity, poor cleaning performance, failure to flow through trigger system and non-homogeneity. Only Example 1 met all such criteria.
Table 3 further shows superiority of the gum based thickeners according to the present invention as compared to various other thickeners. Example 1 was the only combination that provided superior viscosity, shelf-life stability while meeting the feasibility criteria.
The composition of Ex.1 was subsequently diluted up to 750 ml. The cleaning effectiveness of the diluted composition was tested based on IKW Recommendation for the Quality Assessment of Bathroom Cleaners, section, and Determination of limescale removal properties by marble slab immersion in ready to use bathroom cleaner, under following conditions: 1) 10s soaking time, 10 min exposure in vertical position 2) 5s soaking time, 10 min exposure in vertical position 3) 10min soaking time in horizontal position Vertical SU rface Soaking Exposure Limescale removal ability Average StDev time time [g] 10s 10min 0.125 0.128 0.0026 0.131 0.127 0.129 5s 10min 0.133 0.137 0.0048 0.144 0.137 0.132 0.139 Horizo tal surface Soaking Exposure Limescale removal ability Average StDev time time [g] 10min 0.984 0.981 0.0317 1.023 0.949 0.966 While multiple embodiments are disclosed, still other embodiments will become apparent to those skilled in the art from the following detailed description, which shows and describes illustrative embodiments of the invention. Accordingly, the detailed description and examples are to be regarded as illustrative in nature and not restrictive.
Claims (11)
- Claims 1. An aqueous cleaning compositions comprising at least one non-ionic surfactant, at least one organic acid, at least one thickener, and at least one auxiliary agent, wherein the composition having a viscosity ranging between 150 to 800 cP as measured under conditions: 20 °C,Viscometer Brookfield LVDV, Spindle No. 2, at 50 rpm, expressed in cP or centipoise or milli-pascal per second (1 cP = 1 mPa.$), for at least 12 weeks, 52 weeks, 112 weeks, preferably at least 240 weeks.
- 2. The composition according to claim 1, wherein: a. the nonionic surfactant is selected from the group consisting of a lkylpolyglucosides in an amount ranging between 0.2% to 10%; preferably 0.5 w/w to about 7% w/w, most preferably between 0.5% w/w to about 5% w/w; b. the organic acid is present in amount ranging between 4.5% to 75% by weight of the composition, preferably between 30% w/w to 50% w/w, and most preferably between 37.5% w/w to 40% w/w; and c. the thickener is gum based and is present in amount ranging between 0.01% w/w to about 2% w/w, preferably in the range of 0.07 to about 0.5% w/w.
- 3. The composition according to any one of the prior claims, wherein the non-ionic surfactant is the sole source of a surfactant.
- 4 The composition according to any one of the prior claims, wherein the at least one nonionic surfactant is selected from the group consisting of C6-C16 alkyl polyglucoside, preferably C8-C10 alkyl polyglucoside.
- The composition according to any one of the prior claims, wherein the composition further contains a soil-repelling polymer selected from the group consisting of modified starch polymer or PVP, in an amount of 0.02% to 0.35% w/w, preferably between 0.15% to 0.25% and most preferably at 0.20%.
- 6. The composition according to any one of the prior claims, wherein the water is in an amount of 45% w/w to 95% w/w.
- 7. The composition according to any of the prior claims, wherein a pH level of the composition is between 2 to 4.
- 8. The composition according to anyone of the prior claims, wherein the organic acid is citric acid and the thickener is xanthan gum.
- 9. The composition according to anyone of the prior claims, wherein the ratio between the gum-based ingredient and the organic acid is in the range of 1:150 to 1:250, preferably in the range of 1:175 to 1: 195.
- 10. The composition according to any one of the prior claims, wherein the composition consists essentially of: (a) from 35% to 45% w/w, preferably 37.5% to 40% w/w of citric acid (b) from 0.15% to 0.25% w/w of xanthan gum, (c) from 3.5% to 4.5% w/w of C8-C10 alkyl polyglucoside, (d) from 0.2% to 0.3% of modified starch polymer, (e) from 4.5% to 5.5% w/w sodium hydroxide, and optionally a perfume or a dye ingredient, wherein the composition has a viscosity ranging between 150 to 800 cP.
- 11. A method of cleaning a hard surface, wherein the composition according to any of the prior claims is diluted with water for various cleaning purposes and then applied to the hard surface area of interest.
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PCT/EP2023/080008 WO2024089214A1 (en) | 2022-10-27 | 2023-10-26 | Concentrated multipurpose hard surface cleaners |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2341870A (en) * | 1998-09-22 | 2000-03-29 | Reckitt & Colman Inc | Acidic hard surface cleaning compositions |
US20110028369A1 (en) * | 2007-08-17 | 2011-02-03 | Reckitt Benckiser Inc. | Environmentally Acceptable Acidic Lavatory Treatment Compositions |
WO2022175661A1 (en) * | 2021-02-16 | 2022-08-25 | Reckitt & Colman (Overseas) Hygiene Home Limited | Solid toilet bowl and lavatory cleaning compositions |
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DE102004020017A1 (en) * | 2004-04-21 | 2005-11-17 | Henkel Kgaa | Strongly acidic sanitary cleaner with stabilized viscosity and phase behavior |
US20160160155A1 (en) * | 2014-12-09 | 2016-06-09 | Karla Call | Concentrated hard surface cleaner with readily biodegradable cleaning agents |
EP3569682B1 (en) * | 2018-05-15 | 2022-12-07 | The Procter & Gamble Company | Liquid hard surface cleaning compositions having improved viscosity |
-
2022
- 2022-10-27 GB GB2215921.4A patent/GB2623945A/en active Pending
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- 2023-10-26 WO PCT/EP2023/080008 patent/WO2024089214A1/en unknown
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Publication number | Priority date | Publication date | Assignee | Title |
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GB2341870A (en) * | 1998-09-22 | 2000-03-29 | Reckitt & Colman Inc | Acidic hard surface cleaning compositions |
US20110028369A1 (en) * | 2007-08-17 | 2011-02-03 | Reckitt Benckiser Inc. | Environmentally Acceptable Acidic Lavatory Treatment Compositions |
WO2022175661A1 (en) * | 2021-02-16 | 2022-08-25 | Reckitt & Colman (Overseas) Hygiene Home Limited | Solid toilet bowl and lavatory cleaning compositions |
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