CA2111393A1 - Liquid toilet bowl cleaner - Google Patents
Liquid toilet bowl cleanerInfo
- Publication number
- CA2111393A1 CA2111393A1 CA002111393A CA2111393A CA2111393A1 CA 2111393 A1 CA2111393 A1 CA 2111393A1 CA 002111393 A CA002111393 A CA 002111393A CA 2111393 A CA2111393 A CA 2111393A CA 2111393 A1 CA2111393 A1 CA 2111393A1
- Authority
- CA
- Canada
- Prior art keywords
- toilet bowl
- particles
- donating compound
- composition
- particle size
- 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.)
- Abandoned
Links
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
- C11D3/395—Bleaching agents
- C11D3/3956—Liquid compositions
Abstract
ABSTRACT
The present invention is directed to a liquid toilet bowl cleaning composition comprising an aqueous dispersion of particles of at least one halogen donating compound wherein said particles have a surface modifier adsorbed on the surface thereof in an amount sufficient to achieve a particle size of less than about 400 nanometers (nm). The compositions of the present invention can contain other conventional ingredients in toilet bowl cleaning compositions such as enzymes, surfactants, perfumes, dyes and other similar ingredients.
The present invention is directed to a liquid toilet bowl cleaning composition comprising an aqueous dispersion of particles of at least one halogen donating compound wherein said particles have a surface modifier adsorbed on the surface thereof in an amount sufficient to achieve a particle size of less than about 400 nanometers (nm). The compositions of the present invention can contain other conventional ingredients in toilet bowl cleaning compositions such as enzymes, surfactants, perfumes, dyes and other similar ingredients.
Description
;~1 L~3~3 LIQUID TOII-ET BOWL CI,EANER
Field of the Invention The present invention relates to concentrated liquid toilet bowl cleaning compositions.
Backqround of the Invention Compositions that automatically dispense cleaning agents and ad~uvants into toilet bowls have been commercially available for many years. Numerous attempts have been made to add antimicrobial agent~ to these compositions. However, delivery of efficacious amounts of antimicrobial and other cleaning agents has been difficult.
It would be desirable to provide a liquid toilet bowl cleaning composition that efficiently delivers an efficacious amount of active ingredient to the bowl.
Summarv of the Invention The present invention is directed to a concentrated liquid toilet bowl cleaning composition compri~ing an aguQou~ di~per~ion Or particles Or at lea~t one halogen donating compound wherein ~aid particle~ have a surface modifier adsorbed on the ~urface thereof in an amount sufficient to achieve a particle ~ize of less than about 400 nanometers (nm).
The compositions of the present invention can also contain other conventional ingredients in toilet bowl cleaning compositions such as surfactant6, dyes, cau~tic, antisoiling agent~, fragrances and other similar ingredients.
Detailed Description of the Invention ~ ~r.' ' The composition6 of the present invention comprise halogen donating compounds containing nanoparticles.
f~ 3 1~3 3 A stable 6uspension of a halogen donating compound in nanoparticle form can deliver a consi6tent controlled do6age of active ingredient~ over the life of the product. Conventional guspengion~ would ~eparate S over time and reduce the product efficacy.
In the compo6itions of the present invention oxidizing species roleased by the halogen donating compound would not be available to destructively interact with other formulation ingredients. This would allow the incorporation of ingredient6 which normally are not compatible in liquid halogen bleach 6y6tems.
For example, incorporation of a dye would be a valuable activity 6ignal for the con~umer.
Halogen donating compound6 containing nanoparticles delivered to the toilet tank would dissolve more rapidly due to their small size and relea6e 6ufficient quantities of halogen to ~anitize the toilet bowl, with each flu6h, over approximately a thirty day period. Delivery of efficacious amount6 of active to achieve sanitization has typically been an insurmountable hurdle for automatic toilet bowl cleaners due to the larqe volume of water than mugt be treated over time.
~he guantity of available active halogen 2S donating compound 6hould fall within the range of 35 to 70 weight percent in the toilet bowl cleaner for effective efficacy.
Useful halogen donating compounds include halohydantoins guch as 1,3-dichloro-5 5-dimethylhydantoin, 1,3-dichloro-5-ethyl-5-methylhydantoin and 1-bromo-3-3-chloro-5-5-dimethylhydantoin, calcium hypochlorite and ~imilar compounds. Commercially available compo6ition6 containing thege hydantoing include Dantochlor RW and 8273 Dantoin 8-2-5 available from L~NZA, Inc., Fair Lawn, NJ,.
The particles of this invention contain discrete phase of a halogen donating compound as described above having a 6urface modifier adsorbed on the 6urface thereof. Useful surface modifier6 are believed to include tho~e whlch physically adhere to the ~urface of the halogen donating compound but do not chemically bond to the halogen donating compound.
Suitable ~urface modifiers can preferably be ~elected from known organic ~nd inorganic excipients.
Such excipients include various polymers, low molecular weight oligomers, natural product6 and surfactants.
Preferred 6urface modifiers include nonionic and anionic ~urfactant6. Repre~entative examples of excipients include gelatin, casein, lecithin (pho~phatides), gum acacia, cholesterol, tragacanth, ~tearic acid, benzalkonium chloride, calcium ~tearate, glyceryl mono~tearate, cetostearl alcohol, cetomacrogol emul~ifying wax, ~orbitan e~ter~, polyoxyethylene alkyl ethers, e.g., macrogol ether~ ~uch a~ cetomacrogol 1000, polyoxyethylene castor oil derivative6, polyoxyethylene sorbitan fatty acid esters, e.g., the COD ercially available Tween~, polyethylene glycol6, polyoxyethylene ~tearates, colloidol ~ilicon dioxide, phosphates, sodium dodecyl~ulfate, carboxymethylcellulose calcium, ~`
carboxymethylcellulose 60dium, methylcellulose hydroxyethylcellulo~e, hydroxypropylcellulose, hydroxypropylmethycellulose phthalate, noncry6talline cellulose, magnesium aluminum ~ilicate, triethanolamine, polyvinyl ~lcohol, ~nd polyvinylpyrrolidone (PVP). Most of these excipients are described in detail in the Handbook of Pharmaceutical Excipients, published ~ointly by the American Pharmaceutical A~ociation and The Pharmaceutical Society of Great Britain, the Pharmaceutical Press, 19~6, the disclosure of which is hereby incorporated by reference in its entirety. The surface modifiers are commercially available and/or can be prepared by techniguee known in the art.
The surface modifier i3 adsorbed on the surface of the halogen donating compound in an amount ~ufficient to maintain an effective average particle ~ize of less than about 400 nm. The surface modifier does not chemically react with the halogen donating compound or itself. Furthermore, the individually adsorbed molecules of the surface modifier are essentially free of intermolecular crosslinkages.
As used herein, particle size refers to a number average particle size as measured by conventional particle size measuring techniques well known to those ~killed in the art, such as sedimentation field flow fractionation, photon correlation 6pectroscopy, or disk centri$ugation. By "an effective average particle size of less than about 400 nm" it is meant that at least 90%
of the particles have a weight average particle size of les~ than about 400 nm when measured by the above-noted techniques. In preferred embodiments of the invention, the effective average particle size is less than about 250 nm. In some embodiments of the invention, an effective average particle size of less than about 100 nm has been achieved. With reference to the effective average particle size, it is preferred that at least 95%
and, more preferably, at least 99% of the particles have a particle size less than the effective average, e.g., 400 nm. In particularly preferred embodiments, essentially all of the particles have a size less than 400 nm. In some embodiments, essentially all of the particles have a size less than 250 nm.
~ f~
The particles of this invention can be prepared in a method comprising the steps of dispersing a halogen donating compound in a liquid dispersion medium and applying mechanical means in the presence of S grinding media to reduce the particle size of the halogen donating compound to an effective average particle size of less than about 400 nm. The particle6 can be reduced in size in the presence of a surface modifier. Alternatively, the particles can be contacted with a ~urface modifier after attrition.
These methods are described in detail in U.S.
Patent No. 5,145,684.
The relative amount of halogen donating compound and 6urface modifier can vary widely and the optimal amount of the surface modifier can depend, for example, upon the particular halogen donating compound and surface modifier selected, the critical micelle concentration of the ~urface modifier if it forms micelles, etc. The surface modifier preferably is present in an amount of about 0.1-10 mg per ~quare meter ~urface area of the halogen donating compound. The ~urface modlfier can be present in an amount of 0.1-99.995%, preferably 20-60% by weight based on the total weight of the formulation.
The nanoparticles of the present invention can be incorporated into conventional liquid toilet bowl cleaning compositions, as for example those di6closed in U.S. Patent No6. 3,897,357 and 3,970,596, the disclo6ure of which i~ incorporated herein. The~e compo6itions contain a wide variety of conventionally available anionic, nonionic, cationic and amphoteric ~urfactant6, sulfonate 6alt6, neutralizers, disinfectnnts, thickeners, anti60iling agents, fluore6cent whitening agent6, chelating agent6 and fragrances.
-6- ~111 3~3 Representative surfactants include alkanolamides, alkylaryl ~ulfonates, amine oxides, betaines, block copolymer~, ethoxylated alcohols, as for example Neodol 23-6.5 available from Shell Chemical Company, alkylphenol ethoxylate~, ethoxylated fatty acid~, fluorosurf&ctant6, as for example Zonyl FSD
available from Dupont, imidazoline~ and derivatives, quaternary amines, linear alkyl sulfonates, ~ulfosuccinates and alkyl polyglycosides.
Repre~entative disinfectant6 include alkyl dimethyl benzyl ammonium chloride and orthophenylphenol.
Repre~entative thickener~ include fumed silica, methyl cellulose derivatives, clay~, polyacrylic acid, xanthan gum as for example Kelzan S available from Kelco Division of Merck ~ Co., Inc., poly~accharides and magnesium aluminum ~ilicate. A representative chelating ~gent i8 tetrasodium edta.
The compo~itions of the present invention can be illustrated by the following representative example.
Exampl~ 1 Preferred Range Wt. % Wt. %
Water 31.7 20.0 - 40.0 Surfactant 5.0 0.2 - 10.0 Halohydantoin Nanoparticles 60.0 35.0 - 75.0 Acid Blue #9 3.0 1.0 - 7.0 Sodium Hydroxide 0.2 0 - 3.0 Fragrance 0.1 0.05 - 0.5 3 ~ 3 Example 2 Preferred Range Wt. % Wt. ~
s Water Q.S. to 100%20.0 - 40.0 Zonyl FSD 0.2 0.2 - 10.0 Noodol 23-6.5 5.0 0.2 - 10.0 Halohydantoln Nanoparticle6 60.0 35.0 - 75.0 Acid Blue #9 3.0 1.0 - 7.0 Tetrasodium EDTA 3.0 0 - 6.0 Fraqrance 0.1 0.05 - 0.5 Example 3 ~ ;
Preferred Range Wt. ~ Wt. %
Water Q.S. to 100%20.0 - 40.0 ~~:
BTC 2125M 0.2 0.2 - 10.0 Neodol 23-6.5 5.0 0.2 - 10.0 Halohydantoin Nanoparticles 60.0 35.0 - 75.0 Acid Blue #9 3.0 1.0 - 7.0 Xelzan S 0.4 0 - 3.0 Praqrance 0.1 0 - 0.5 The foregoing specification, including the :
specific embodiments and ex~mples is intended to be illu~trative of the present invention and is not to be ~ .
taken as limiting. Numerous other variations and :
modification6 can be effected without departing from the - :
true spirit and scope of the present invention.
Field of the Invention The present invention relates to concentrated liquid toilet bowl cleaning compositions.
Backqround of the Invention Compositions that automatically dispense cleaning agents and ad~uvants into toilet bowls have been commercially available for many years. Numerous attempts have been made to add antimicrobial agent~ to these compositions. However, delivery of efficacious amounts of antimicrobial and other cleaning agents has been difficult.
It would be desirable to provide a liquid toilet bowl cleaning composition that efficiently delivers an efficacious amount of active ingredient to the bowl.
Summarv of the Invention The present invention is directed to a concentrated liquid toilet bowl cleaning composition compri~ing an aguQou~ di~per~ion Or particles Or at lea~t one halogen donating compound wherein ~aid particle~ have a surface modifier adsorbed on the ~urface thereof in an amount sufficient to achieve a particle ~ize of less than about 400 nanometers (nm).
The compositions of the present invention can also contain other conventional ingredients in toilet bowl cleaning compositions such as surfactant6, dyes, cau~tic, antisoiling agent~, fragrances and other similar ingredients.
Detailed Description of the Invention ~ ~r.' ' The composition6 of the present invention comprise halogen donating compounds containing nanoparticles.
f~ 3 1~3 3 A stable 6uspension of a halogen donating compound in nanoparticle form can deliver a consi6tent controlled do6age of active ingredient~ over the life of the product. Conventional guspengion~ would ~eparate S over time and reduce the product efficacy.
In the compo6itions of the present invention oxidizing species roleased by the halogen donating compound would not be available to destructively interact with other formulation ingredients. This would allow the incorporation of ingredient6 which normally are not compatible in liquid halogen bleach 6y6tems.
For example, incorporation of a dye would be a valuable activity 6ignal for the con~umer.
Halogen donating compound6 containing nanoparticles delivered to the toilet tank would dissolve more rapidly due to their small size and relea6e 6ufficient quantities of halogen to ~anitize the toilet bowl, with each flu6h, over approximately a thirty day period. Delivery of efficacious amount6 of active to achieve sanitization has typically been an insurmountable hurdle for automatic toilet bowl cleaners due to the larqe volume of water than mugt be treated over time.
~he guantity of available active halogen 2S donating compound 6hould fall within the range of 35 to 70 weight percent in the toilet bowl cleaner for effective efficacy.
Useful halogen donating compounds include halohydantoins guch as 1,3-dichloro-5 5-dimethylhydantoin, 1,3-dichloro-5-ethyl-5-methylhydantoin and 1-bromo-3-3-chloro-5-5-dimethylhydantoin, calcium hypochlorite and ~imilar compounds. Commercially available compo6ition6 containing thege hydantoing include Dantochlor RW and 8273 Dantoin 8-2-5 available from L~NZA, Inc., Fair Lawn, NJ,.
The particles of this invention contain discrete phase of a halogen donating compound as described above having a 6urface modifier adsorbed on the 6urface thereof. Useful surface modifier6 are believed to include tho~e whlch physically adhere to the ~urface of the halogen donating compound but do not chemically bond to the halogen donating compound.
Suitable ~urface modifiers can preferably be ~elected from known organic ~nd inorganic excipients.
Such excipients include various polymers, low molecular weight oligomers, natural product6 and surfactants.
Preferred 6urface modifiers include nonionic and anionic ~urfactant6. Repre~entative examples of excipients include gelatin, casein, lecithin (pho~phatides), gum acacia, cholesterol, tragacanth, ~tearic acid, benzalkonium chloride, calcium ~tearate, glyceryl mono~tearate, cetostearl alcohol, cetomacrogol emul~ifying wax, ~orbitan e~ter~, polyoxyethylene alkyl ethers, e.g., macrogol ether~ ~uch a~ cetomacrogol 1000, polyoxyethylene castor oil derivative6, polyoxyethylene sorbitan fatty acid esters, e.g., the COD ercially available Tween~, polyethylene glycol6, polyoxyethylene ~tearates, colloidol ~ilicon dioxide, phosphates, sodium dodecyl~ulfate, carboxymethylcellulose calcium, ~`
carboxymethylcellulose 60dium, methylcellulose hydroxyethylcellulo~e, hydroxypropylcellulose, hydroxypropylmethycellulose phthalate, noncry6talline cellulose, magnesium aluminum ~ilicate, triethanolamine, polyvinyl ~lcohol, ~nd polyvinylpyrrolidone (PVP). Most of these excipients are described in detail in the Handbook of Pharmaceutical Excipients, published ~ointly by the American Pharmaceutical A~ociation and The Pharmaceutical Society of Great Britain, the Pharmaceutical Press, 19~6, the disclosure of which is hereby incorporated by reference in its entirety. The surface modifiers are commercially available and/or can be prepared by techniguee known in the art.
The surface modifier i3 adsorbed on the surface of the halogen donating compound in an amount ~ufficient to maintain an effective average particle ~ize of less than about 400 nm. The surface modifier does not chemically react with the halogen donating compound or itself. Furthermore, the individually adsorbed molecules of the surface modifier are essentially free of intermolecular crosslinkages.
As used herein, particle size refers to a number average particle size as measured by conventional particle size measuring techniques well known to those ~killed in the art, such as sedimentation field flow fractionation, photon correlation 6pectroscopy, or disk centri$ugation. By "an effective average particle size of less than about 400 nm" it is meant that at least 90%
of the particles have a weight average particle size of les~ than about 400 nm when measured by the above-noted techniques. In preferred embodiments of the invention, the effective average particle size is less than about 250 nm. In some embodiments of the invention, an effective average particle size of less than about 100 nm has been achieved. With reference to the effective average particle size, it is preferred that at least 95%
and, more preferably, at least 99% of the particles have a particle size less than the effective average, e.g., 400 nm. In particularly preferred embodiments, essentially all of the particles have a size less than 400 nm. In some embodiments, essentially all of the particles have a size less than 250 nm.
~ f~
The particles of this invention can be prepared in a method comprising the steps of dispersing a halogen donating compound in a liquid dispersion medium and applying mechanical means in the presence of S grinding media to reduce the particle size of the halogen donating compound to an effective average particle size of less than about 400 nm. The particle6 can be reduced in size in the presence of a surface modifier. Alternatively, the particles can be contacted with a ~urface modifier after attrition.
These methods are described in detail in U.S.
Patent No. 5,145,684.
The relative amount of halogen donating compound and 6urface modifier can vary widely and the optimal amount of the surface modifier can depend, for example, upon the particular halogen donating compound and surface modifier selected, the critical micelle concentration of the ~urface modifier if it forms micelles, etc. The surface modifier preferably is present in an amount of about 0.1-10 mg per ~quare meter ~urface area of the halogen donating compound. The ~urface modlfier can be present in an amount of 0.1-99.995%, preferably 20-60% by weight based on the total weight of the formulation.
The nanoparticles of the present invention can be incorporated into conventional liquid toilet bowl cleaning compositions, as for example those di6closed in U.S. Patent No6. 3,897,357 and 3,970,596, the disclo6ure of which i~ incorporated herein. The~e compo6itions contain a wide variety of conventionally available anionic, nonionic, cationic and amphoteric ~urfactant6, sulfonate 6alt6, neutralizers, disinfectnnts, thickeners, anti60iling agents, fluore6cent whitening agent6, chelating agent6 and fragrances.
-6- ~111 3~3 Representative surfactants include alkanolamides, alkylaryl ~ulfonates, amine oxides, betaines, block copolymer~, ethoxylated alcohols, as for example Neodol 23-6.5 available from Shell Chemical Company, alkylphenol ethoxylate~, ethoxylated fatty acid~, fluorosurf&ctant6, as for example Zonyl FSD
available from Dupont, imidazoline~ and derivatives, quaternary amines, linear alkyl sulfonates, ~ulfosuccinates and alkyl polyglycosides.
Repre~entative disinfectant6 include alkyl dimethyl benzyl ammonium chloride and orthophenylphenol.
Repre~entative thickener~ include fumed silica, methyl cellulose derivatives, clay~, polyacrylic acid, xanthan gum as for example Kelzan S available from Kelco Division of Merck ~ Co., Inc., poly~accharides and magnesium aluminum ~ilicate. A representative chelating ~gent i8 tetrasodium edta.
The compo~itions of the present invention can be illustrated by the following representative example.
Exampl~ 1 Preferred Range Wt. % Wt. %
Water 31.7 20.0 - 40.0 Surfactant 5.0 0.2 - 10.0 Halohydantoin Nanoparticles 60.0 35.0 - 75.0 Acid Blue #9 3.0 1.0 - 7.0 Sodium Hydroxide 0.2 0 - 3.0 Fragrance 0.1 0.05 - 0.5 3 ~ 3 Example 2 Preferred Range Wt. % Wt. ~
s Water Q.S. to 100%20.0 - 40.0 Zonyl FSD 0.2 0.2 - 10.0 Noodol 23-6.5 5.0 0.2 - 10.0 Halohydantoln Nanoparticle6 60.0 35.0 - 75.0 Acid Blue #9 3.0 1.0 - 7.0 Tetrasodium EDTA 3.0 0 - 6.0 Fraqrance 0.1 0.05 - 0.5 Example 3 ~ ;
Preferred Range Wt. ~ Wt. %
Water Q.S. to 100%20.0 - 40.0 ~~:
BTC 2125M 0.2 0.2 - 10.0 Neodol 23-6.5 5.0 0.2 - 10.0 Halohydantoin Nanoparticles 60.0 35.0 - 75.0 Acid Blue #9 3.0 1.0 - 7.0 Xelzan S 0.4 0 - 3.0 Praqrance 0.1 0 - 0.5 The foregoing specification, including the :
specific embodiments and ex~mples is intended to be illu~trative of the present invention and is not to be ~ .
taken as limiting. Numerous other variations and :
modification6 can be effected without departing from the - :
true spirit and scope of the present invention.
Claims (6)
1. A liquid toilet bowl cleaning composition comprising an aqueous dispersion of particles of at least one halogen donating compound wherein said particles have a surface modifier adsorbed on the surface thereof in an amount sufficient to achieve a particle size of less than about 400 nanometers (nm), a surfactant, a dye and a fragrance.
2. A composition as in claim 1 wherein the halogen donating compound is a halohydantoin.
3. A liquid toilet bowl cleaning composition that comprises:
4. A composition as in claim 3 that further comprises a thickener.
5. A composition as in claim 3 that further comprises a chelating agent.
6. A method for cleaning toilet bowls comprising dispensing into the water of a toilet an effective amount of a composition of claim 1.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/991,449 | 1992-12-16 | ||
| US07/991,449 US5256328A (en) | 1992-12-16 | 1992-12-16 | Liquid toilet bowl cleaner and sanitizer containing halogen donating nanoparticles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2111393A1 true CA2111393A1 (en) | 1994-06-17 |
Family
ID=25537227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002111393A Abandoned CA2111393A1 (en) | 1992-12-16 | 1993-12-14 | Liquid toilet bowl cleaner |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US5256328A (en) |
| CA (1) | CA2111393A1 (en) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5364550A (en) * | 1992-12-16 | 1994-11-15 | Eastman Kodak Company | Liquid detergent composition |
| DE4333385C2 (en) * | 1993-09-30 | 1997-01-30 | Friedrich A Spruegel | Surface disinfectants and cleaning agents |
| US5565576A (en) * | 1994-10-27 | 1996-10-15 | Lonza Inc. | Halohydantoin and fatty amide composition for compaction, process of compacting and product produced thereby |
| US5785975A (en) * | 1995-06-26 | 1998-07-28 | Research Triangle Pharmaceuticals | Adjuvant compositions and vaccine formulations comprising same |
| US6255267B1 (en) * | 1996-03-04 | 2001-07-03 | Hpd Laboratories, Inc. | Manual toilet bowl cleaner |
| JP2000502744A (en) * | 1996-03-19 | 2000-03-07 | ザ、プロクター、エンド、ギャンブル、カンパニー | Toilet ball detergent system containing blooming fragrance |
| US5972864A (en) * | 1997-02-14 | 1999-10-26 | Lonza Inc. | Bleaching and cleaning compositions containing fragrances |
| US6372701B2 (en) * | 2000-04-20 | 2002-04-16 | Colgate Palmolive Company | Toilet bowl cleaning compositions containing a polymeric viscosity modifier |
| US6500408B2 (en) * | 2001-01-27 | 2002-12-31 | Jc Technologies, Inc. | Enamel-safe tooth bleach and method for use |
| US7119055B2 (en) * | 2001-08-31 | 2006-10-10 | Reckitt Benckiser Inc. | Hard surface cleaners comprising a thickening gum mixture |
| US7256167B2 (en) * | 2001-08-31 | 2007-08-14 | Reckitt Benckiser Inc. | Hard surface cleaner comprising suspended particles and oxidizing agent |
| GB2379223A (en) | 2001-08-31 | 2003-03-05 | Reckitt Benckiser Inc | Cleaning composition comprising citric acid |
| US20030086814A1 (en) * | 2001-10-30 | 2003-05-08 | Meyer Ellen M | Odor control method |
| US20030216488A1 (en) * | 2002-04-18 | 2003-11-20 | The Procter & Gamble Company | Compositions comprising a dispersant and microcapsules containing an active material |
| US20030215417A1 (en) * | 2002-04-18 | 2003-11-20 | The Procter & Gamble Company | Malodor-controlling compositions comprising odor control agents and microcapsules containing an active material |
| US20040034911A1 (en) * | 2002-08-21 | 2004-02-26 | Arie Day | Preventing adherence of an exudate on a toilet bowl surface |
| US7196043B2 (en) * | 2002-10-23 | 2007-03-27 | S. C. Johnson & Son, Inc. | Process and composition for producing self-cleaning surfaces from aqueous systems |
| GB2398792A (en) * | 2003-02-22 | 2004-09-01 | Reckitt Benckiser Inc | Acidic hard surface cleaning and/or disinfecting composition |
| AR043906A1 (en) * | 2003-02-22 | 2005-08-17 | Reckitt Benckiser Inc | CLEANING COMPOSITIONS FOR HARD SURFACES |
| US20040172741A1 (en) * | 2003-03-04 | 2004-09-09 | Troost Erik Herman | Toilet rim block holder |
| US20060128585A1 (en) * | 2004-12-15 | 2006-06-15 | Martha Adair | Antimicrobial composition for cleaning substrate |
| ES2337914T3 (en) * | 2005-11-09 | 2010-04-30 | Ecolab Inc. | COMPOSITION WITH PROPERTIES OF SURFACE MODIFICATION. |
| CN101148634B (en) * | 2007-09-28 | 2010-06-02 | 广州市欧替克消毒剂生产有限公司 | Detergent containing bromochlorohydantoin |
| EP2166073A1 (en) * | 2008-09-23 | 2010-03-24 | The Procter & Gamble Company | Cleaning composition |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA962158A (en) * | 1971-03-11 | 1975-02-04 | Unilever Limited | Detergent compositions |
| US3689421A (en) * | 1971-04-09 | 1972-09-05 | Purex Corp Ltd | Household hypochlorite bleach with stable latex opacifier |
| US3767586A (en) * | 1971-09-10 | 1973-10-23 | Du Pont | Process for preparing stable aqueous solutions of n halo compounds |
| US3897357A (en) * | 1972-12-06 | 1975-07-29 | American Home Prod | Bacteriostatic toilet bowl cleaner compositions |
| US4011172A (en) * | 1975-03-27 | 1977-03-08 | The Procter & Gamble Company | Bleaching articles |
| US4800036A (en) * | 1985-05-06 | 1989-01-24 | The Dow Chemical Company | Aqueous bleach compositions thickened with a viscoelastic surfactant |
| DE3767603D1 (en) * | 1986-08-07 | 1991-02-28 | Clorox Co | THICKENED HYPOCHLORITE COMPOSITION AND THEIR USE. |
| US4913828A (en) * | 1987-06-10 | 1990-04-03 | The Procter & Gamble Company | Conditioning agents and compositions containing same |
| US5145684A (en) * | 1991-01-25 | 1992-09-08 | Sterling Drug Inc. | Surface modified drug nanoparticles |
-
1992
- 1992-12-16 US US07/991,449 patent/US5256328A/en not_active Expired - Lifetime
-
1993
- 1993-12-14 CA CA002111393A patent/CA2111393A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| US5256328A (en) | 1993-10-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |