WO1998001110A1 - Triclosan skin wash with enhanced efficacy - Google Patents

Triclosan skin wash with enhanced efficacy Download PDF

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Publication number
WO1998001110A1
WO1998001110A1 PCT/US1997/012279 US9712279W WO9801110A1 WO 1998001110 A1 WO1998001110 A1 WO 1998001110A1 US 9712279 W US9712279 W US 9712279W WO 9801110 A1 WO9801110 A1 WO 9801110A1
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WIPO (PCT)
Prior art keywords
wash
triclosan
further characterized
surfactant
skin
Prior art date
Application number
PCT/US1997/012279
Other languages
French (fr)
Inventor
Nancy E. Kaiser
Denise K. Pretzer
Original Assignee
Calgon Vestal, Inc.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Calgon Vestal, Inc. filed Critical Calgon Vestal, Inc.
Priority to JP50537498A priority Critical patent/JP2002514163A/en
Priority to AU36639/97A priority patent/AU726543B2/en
Priority to EP97933460A priority patent/EP0939618B1/en
Priority to CA002260126A priority patent/CA2260126C/en
Priority to DE69715444T priority patent/DE69715444T2/en
Publication of WO1998001110A1 publication Critical patent/WO1998001110A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/34—Alcohols
    • A61K8/347—Phenols
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/34—Alcohols
    • A61K8/345—Alcohols containing more than one hydroxy group
    • 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
    • A61P31/02—Local antiseptics
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • A61Q19/10—Washing or bathing preparations
    • 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
    • C11D3/2068—Ethers
    • 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
    • C11D3/24—Organic compounds containing halogen
    • 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
    • C11D3/48—Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions

Definitions

  • the present invention relates to the antimicrobial arts. It finds particular application in conjunction with the removal of microorganisms from the skin of health care personnel and will be described with particular reference thereto. It should be appreciated, however, that the invention is also applicable outside the medical area, such as as a hand wash for workers in the food preparation industry, a wash for consumer and home health care, or other areas where skin disinfection is advisable or desirable.
  • a skin wash which includes: about 0.2 to about 3.0% triclosan; about 2 to about 20% surfactant; about 1.0 to about 30% non-aqueous solvent; about 0.0 to about 1.0% chelating agent; 0.0 to about 3.0% thickener; and, 0.0 to about 5.0% buffering agent.
  • One advantage of the invention resides in improved activity against Gram negative organisms. In particular, the formulations have improved activity over other formulations against Serra tia marcescens, a Gram negative organism which is one of the most difficult to kill.
  • Another advantage of the invention resides in improved activity against Gram positive organisms.
  • Other advantages of the invention include efficacy at low surfactant concentrations, a reduction in the skin irritation typically associated with triclosan hand wash formulations, and a superior cleaning effect to hand washes comprised primarily of alcohols. Still further advantages of the present invention will become apparent to those of ordinary skill in the art upon reading and understanding the following detailed description of the preferred embodiments.
  • Triclosan is present in the hand and skin wash formulations in an amount from about 0.2 to about 3.0%. Preferably, the amount of triclosan is from about 0.3 to about 1.5%.
  • triclosan has poor solubility in water and generally requires formulation additives to solubilize it.
  • the most common additives used to solubilize triclosan are surfactants which increase skin irritation.
  • the present formulations minimize this problem by using non-aqueous solvents and lower levels of surfactants to solubilize the triclosan.
  • the non-aqueous solvents used in the formulations are generally present in an amount from about 1.0 to about 30%. Preferably, these solvents are present in an amount from about 5.0 to about 25.0%.
  • suitable non-aqueous solvents include glycols, such as propylene glycol, butylene glycol, triethylene glycol, hexylene glycol, polyethylene glycols, ethoxydiglycol, and dipropylenegylcol ; alcohols, such as ethanol, n-propanol, and isopropanol; triglycerides ; ethyl acetate; acetone; triacetin; and combinations of these.
  • surfactants used to solubilize the triclosan are generally present in amounts of perhaps about 5-30% active surfactant by weight.
  • the surfactants used in the present formulations are generally present in much lower amounts, for instance from about 2.0 to about 20.0%, and preferably in an amount from about 2.4 to about 10%.
  • a preferred surfactant is ammonium cocoyl isethionate.
  • Chelating agents are used in an amount from 0.0 to about 1.0%. It is particularly preferred that the amount be from about 0.01 to about 0.5%.
  • Typical examples of the kind of chelating agents which are useful in the present formulation include EDTA acid or salts, citric acid or salts, glucuronic acid or salts, pyrophosphate salts, chelating surfactants such as phosphate esters and lauroyl ethylenediaminetriacetic acid, and mixtures of these.
  • the chelating agents serve to improve the effectiveness of the formulation toward Gram negative bacteria.
  • the polymer/viscosity- inducing agent, or thickener is present in an amount from 0.0 to about 3.0%, and preferably in an amount from about 0.5 to about 2.0%.
  • Typical examples of these agents include hydroxypropyl methylcellulose , hydroxypropyl cellulose, hydroxyethyl cellulose, carbomer, naturally occurring gums, such as guar, guar derivatives, alginate, and alginate derivatives, and mixtures of these.
  • the buffering agents are present in an amount from 0.0 to about 5.0%, and preferably in an amount from about 0.1 to about 1.0%. These agents are typically acids or salts used to maintain pH in the range of about 3.0 to about 8.0, and preferably from about 4.5 to about 6.0. Examples include acetic acid/acetate salts, citric acid/citrate salts, glycolic acid/glycolate salts, phosphoric acid/phosphate salts, and mixtures of any of these. The most preferred formulations include citric acid/citrate salts.
  • the components are mixed together in the proportions described.
  • it is preferably first mixed in the solvent (s) and/or surfactant (s) before the water is added.
  • the other components are then added when convenient.
  • the viscosity of the composition formed is from about 20 to 10,000 cps .
  • the viscosity of the composition formed is from about 500 to 2500 cps.
  • the present formulations have improved activity against Gram negative and Gram positive organisms. The activity against Gram negative organisms is most dramatic with the inclusion of low levels of isopropanol or n-propanol.
  • Such activity is completely unexpected since low levels of isopropanol alone do not show this level of activity.
  • the activity against Gram positive organisms is particularly evident when hexylene glycol is used as a solven . Accordingly, combinations of isopropanol and hexylene glycol or n-propanol and hexylene glycol are preferred.
  • triclosan is poorly soluble in water and generally formulation additives are used to solubilize it.
  • the most common additives used to solubilize triclosan are surfactants which often increase the irritancy of a formulation.
  • the present formulations contain non-aqueous solvents and lower levels of surfactants to solubilize the triclosan.
  • Propylene glycol is the most common choice of solvent for topical products.
  • hexylene glycol serves as a better solvent than propylene glycol.
  • the preferred formulations include hexylene glycol and isopropanol.
  • the present formulations are applied to the skin surface to be treated in a conventional manner, as one would apply any hand wash or soap.
  • the hand wash is dispensed from a bottle or other dispenser and worked into the hands for sufficient time to remove soil and kill microorganisms present on the skin. Water is used to assist in the formation of a lather. To remove the hand wash, it is rinsed off with water.
  • Samples of a triclosan formulation were inoculated with strains of microorganisms expected to be found on skin surfaces as transient or resident and the effectiveness of the formulation determined in terms of the log reduction in the number of microorganisms.
  • the organisms tested were chosen to represent a broad spectrum of standards and clinical isolates.
  • the organisms tested included the Gram positive organisms, Staphylococcus aureus and epidermidis, Streptococcus pyogenes and En terococcus faecalis , the Gram negative organisms, Esterichia coli , Klebsiella pneumoniae , Pseudomonas aeruginosa and Serratia marcescens and the yeast, Candida albicans .
  • Yeast Maltose (YM) agar slants were inoculated with 0.1 mL of stock culture and incubated for 48 hours at 30°C.
  • BHI Brain Heart Infusion
  • Time Kill Procedure lOmL samples of the triclosan formula were inoculated with 0.1 mL of the approximate 10' microorganism suspension and mixed.
  • a 1.0 mL portion of the inoculated samples was removed and placed into a neutralizing dilution blank.
  • the neutralizers used were Letheen broth containing 5% heat-inactivated fetal bovine serum for triclosan. Serial dilutions were performed and plated to the fifth dilution. Counts were compared with an inoculated control to quantify the log reduction of organisms due to the activity of the formulation .
  • the triclosan-containing formulation was found to exhibit activity against a broad spectrum of organisms. A range of activity was observed with the greatest rate and extent of kill seen for Gram positive organisms known to reside on skin and to be transferred via hands in the hospital setting. However, the formulation also showed significant activity against difficult to kill Gram negative organisms such as Serra tia marcescens .

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  • Chemical Kinetics & Catalysis (AREA)
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  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pharmacology & Pharmacy (AREA)
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Abstract

A disinfectant hand wash includes triclosan and a reduced amount of surfactants in order to reduce skin irritation while maintaining improved activity against Gram negative and Gram positive organisms, including Serratia marcescens. The hand wash includes an effective amount of triclosan, preferably 0.2-3.0 % and a non-aqueous solvent. A mixture of hexylene glycol and isopropanol provide improved efficacy in killing skin-born microbes. The hand wash further includes 2-20 % surfactant, preferably less than 10 %. The hand wash further includes a chelating agent, a thickener, a buffering agent, and water.

Description

TRICLOSAN SKIN WASH WITH ENHANCED EFFICACY
Background of the Invention
The present invention relates to the antimicrobial arts. It finds particular application in conjunction with the removal of microorganisms from the skin of health care personnel and will be described with particular reference thereto. It should be appreciated, however, that the invention is also applicable outside the medical area, such as as a hand wash for workers in the food preparation industry, a wash for consumer and home health care, or other areas where skin disinfection is advisable or desirable.
The chemical control of bacteria and viruses is assuming increasing importance in the hospital and medical environment. The situation has been exacerbated by the failure of many bacteria to respond to conventional antibiotics. Accordingly, the need for effective control of bacterial and viral organisms is assuming greatly increased significance. In the case of hand and skin disinfection, a biocidal agent needs to kill the widest possible range of microorganisms in the least possible time without toxicity, irritation or other hazards.
Summary of the Invention In accordance with the present invention, a skin wash is provided which includes: about 0.2 to about 3.0% triclosan; about 2 to about 20% surfactant; about 1.0 to about 30% non-aqueous solvent; about 0.0 to about 1.0% chelating agent; 0.0 to about 3.0% thickener; and, 0.0 to about 5.0% buffering agent. One advantage of the invention resides in improved activity against Gram negative organisms. In particular, the formulations have improved activity over other formulations against Serra tia marcescens, a Gram negative organism which is one of the most difficult to kill.
Another advantage of the invention resides in improved activity against Gram positive organisms. Other advantages of the invention include efficacy at low surfactant concentrations, a reduction in the skin irritation typically associated with triclosan hand wash formulations, and a superior cleaning effect to hand washes comprised primarily of alcohols. Still further advantages of the present invention will become apparent to those of ordinary skill in the art upon reading and understanding the following detailed description of the preferred embodiments.
Detailed Description of the Preferred Embodiments
Triclosan is present in the hand and skin wash formulations in an amount from about 0.2 to about 3.0%. Preferably, the amount of triclosan is from about 0.3 to about 1.5%. Unfortunately, triclosan has poor solubility in water and generally requires formulation additives to solubilize it. The most common additives used to solubilize triclosan are surfactants which increase skin irritation. The present formulations minimize this problem by using non-aqueous solvents and lower levels of surfactants to solubilize the triclosan.
The non-aqueous solvents used in the formulations are generally present in an amount from about 1.0 to about 30%. Preferably, these solvents are present in an amount from about 5.0 to about 25.0%. Examples of suitable non-aqueous solvents include glycols, such as propylene glycol, butylene glycol, triethylene glycol, hexylene glycol, polyethylene glycols, ethoxydiglycol, and dipropylenegylcol ; alcohols, such as ethanol, n-propanol, and isopropanol; triglycerides ; ethyl acetate; acetone; triacetin; and combinations of these. Especially preferred are the combinations of hexylene glycol and isopropanol and hexylene glycol and n-propanol. In prior art compositions, surfactants used to solubilize the triclosan are generally present in amounts of perhaps about 5-30% active surfactant by weight. The surfactants used in the present formulations are generally present in much lower amounts, for instance from about 2.0 to about 20.0%, and preferably in an amount from about 2.4 to about 10%.
Typical examples of surfactants which are useful in the formulations of the invention include nonionic and anionic surfactants such as polyoxyethylene sorbitan fatty acid esters, polyoxyethylene stearates, polyvinyl alcohol, poloxamers, octoxynols, sodium or ammonium salts of sarcosinates , sulfosuccinates, sulfonates, isethionates , sulfates, amine oxides, taurates, betaines, sultaines, imidazolines and their derivatives, and combinations of these. A preferred surfactant is ammonium cocoyl isethionate.
Chelating agents are used in an amount from 0.0 to about 1.0%. It is particularly preferred that the amount be from about 0.01 to about 0.5%. Typical examples of the kind of chelating agents which are useful in the present formulation include EDTA acid or salts, citric acid or salts, glucuronic acid or salts, pyrophosphate salts, chelating surfactants such as phosphate esters and lauroyl ethylenediaminetriacetic acid, and mixtures of these. The chelating agents serve to improve the effectiveness of the formulation toward Gram negative bacteria.
The polymer/viscosity- inducing agent, or thickener, is present in an amount from 0.0 to about 3.0%, and preferably in an amount from about 0.5 to about 2.0%. Typical examples of these agents include hydroxypropyl methylcellulose , hydroxypropyl cellulose, hydroxyethyl cellulose, carbomer, naturally occurring gums, such as guar, guar derivatives, alginate, and alginate derivatives, and mixtures of these.
The buffering agents are present in an amount from 0.0 to about 5.0%, and preferably in an amount from about 0.1 to about 1.0%. These agents are typically acids or salts used to maintain pH in the range of about 3.0 to about 8.0, and preferably from about 4.5 to about 6.0. Examples include acetic acid/acetate salts, citric acid/citrate salts, glycolic acid/glycolate salts, phosphoric acid/phosphate salts, and mixtures of any of these. The most preferred formulations include citric acid/citrate salts.
Finally, water is used to make up the remainder of the composition.
To prepare the hand wash, the components are mixed together in the proportions described. In order to solubilize the triclosan completely, it is preferably first mixed in the solvent (s) and/or surfactant (s) before the water is added. The other components are then added when convenient. When the components are mixed together in the proportions described, the viscosity of the composition formed is from about 20 to 10,000 cps . Preferably, the viscosity of the composition formed is from about 500 to 2500 cps. As noted above, the present formulations have improved activity against Gram negative and Gram positive organisms. The activity against Gram negative organisms is most dramatic with the inclusion of low levels of isopropanol or n-propanol. Such activity is completely unexpected since low levels of isopropanol alone do not show this level of activity. The activity against Gram positive organisms is particularly evident when hexylene glycol is used as a solven . Accordingly, combinations of isopropanol and hexylene glycol or n-propanol and hexylene glycol are preferred. Additionally, as noted above, triclosan is poorly soluble in water and generally formulation additives are used to solubilize it. The most common additives used to solubilize triclosan are surfactants which often increase the irritancy of a formulation. The present formulations contain non-aqueous solvents and lower levels of surfactants to solubilize the triclosan. Propylene glycol is the most common choice of solvent for topical products. In the present formulations, hexylene glycol serves as a better solvent than propylene glycol. Accordingly, the preferred formulations include hexylene glycol and isopropanol.
The present formulations are applied to the skin surface to be treated in a conventional manner, as one would apply any hand wash or soap. Preferably, the hand wash is dispensed from a bottle or other dispenser and worked into the hands for sufficient time to remove soil and kill microorganisms present on the skin. Water is used to assist in the formation of a lather. To remove the hand wash, it is rinsed off with water.
EXAMPLE
Samples of a triclosan formulation were inoculated with strains of microorganisms expected to be found on skin surfaces as transient or resident and the effectiveness of the formulation determined in terms of the log reduction in the number of microorganisms.
The following triclosan hand wash formulation was prepared :
Material % by Weight Ammonium Hydroxide 0.0870
Triclosan 1.0000
Hexylene Glycol 10.000
Deionized Water 69.8130
Hydroxypropyl Methylcellulose 0.9500 (Brand - Methocel K15MS)
Ammonium Cocoyl Isethionate 15.0000
(Brand - Jordapon ACI-30) Diammonium Dimethicone Copolyol 1.5000 Sulfosuccinate (Brand - Mackanate DC-60A)
Ammonium Lauroyl Sarcosinate 1.5000
(Brand - Hamposyl AL-30) EDTA Acid 0.1500
(Brand - Hampene Acid) As the ammonium cocoyl isethionate and the ammonium lauroyl sarcosinate were 30% solutions and the diammonium dimethicone copolyol sulfosuccinate a 60% solution, the total surfactant concentration in the hand wash formulation was 5.85% by weight .
Preparation of Inoculum
The organisms tested were chosen to represent a broad spectrum of standards and clinical isolates. The organisms tested included the Gram positive organisms, Staphylococcus aureus and epidermidis, Streptococcus pyogenes and En terococcus faecalis , the Gram negative organisms, Esterichia coli , Klebsiella pneumoniae , Pseudomonas aeruginosa and Serratia marcescens and the yeast, Candida albicans .
For Candida strains, 48 hours prior to testing, Yeast Maltose (YM) agar slants were inoculated with 0.1 mL of stock culture and incubated for 48 hours at 30°C. For other strains that were tested, 24 hours prior to testing, Brain Heart Infusion (BHI) agar slants were inoculated with 0.1 mL of stock culture and incubated at 30°C for 24 hours. After incubation, the day of testing, cultures were removed from the incubator. Cultures were then resuspended with 10 L of sterile 0.85% saline solution, yielding a suspension containing approximately 10' organisms.
Time Kill Procedure lOmL samples of the triclosan formula were inoculated with 0.1 mL of the approximate 10' microorganism suspension and mixed.
At scheduled intervals, a 1.0 mL portion of the inoculated samples was removed and placed into a neutralizing dilution blank. The neutralizers used were Letheen broth containing 5% heat-inactivated fetal bovine serum for triclosan. Serial dilutions were performed and plated to the fifth dilution. Counts were compared with an inoculated control to quantify the log reduction of organisms due to the activity of the formulation .
The triclosan-containing formulation was found to exhibit activity against a broad spectrum of organisms. A range of activity was observed with the greatest rate and extent of kill seen for Gram positive organisms known to reside on skin and to be transferred via hands in the hospital setting. However, the formulation also showed significant activity against difficult to kill Gram negative organisms such as Serra tia marcescens .

Claims

Having described the preferred embodiments, the invention is now claimed to be:
1. A skin wash composition including: triclosan, a surfactant, and, water, characterized by: the triclosan concentration being from about 0.2 to about 3.0%; the surfactant concentration from about 2 to about 20% about 1.0 to about 30% non-aqueous solvent; about 0.0 to about 1.0% chelating agent; about 0.0 to about 3.0% thickener; and, about 0.0 to about 5.0% buffering agent.
2. The wash composition of claim 1, further characterized by the non-aqueous solvent including one or more of the group including glycols, alcohols, triglycerides , ethyl acetate, acetone, and triacetin.
3. The wash of either of claims 1 and 2, further characterized by the non-aqueous solvent including between about 5 and 13% hexylene glycol and about 5% isopropanol or n-propanol .
4. The wash composition of any one of claims 1, 2, and 3, wherein the non-aqueous solvent includes one or more of the group including propylene glycol, butylene glycol, triethylene glycol, hexylene glycol, polyethylene glycol, ethoxydiglycol, dipropyleneglycol , ethanol , n-propanol, isopropanol, triglycerides, ethyl acetate, acetone, and triacetin.
5. The wash of any one of claims 1-4, further characterized by the surfactant including one or more of the group including polyoxyethylene sorbitan fatty acid esters, polyoxyethylene stearates, polyvinyl alcohol, poloxamers, octoxynols, sodium or ammonium salts of sarcosinates , sulfonates, sulfosuccinates, isethionates, sulfates, a ine oxides, taurates, betaines, sultaines, imidazolines, and their derivatives .
6. The wash of any one of preceding claims 1-5, further characterized by the surfactant including between about 2.4 and about 10% ammonium cocoyl isethionate.
7. The wash composition of any one of preceding claims 1-6, further characterized by the ratio of solvent to surfactant being between about 1:1 and about 10:1.
8. The wash of any one of preceding claims 1-7, further characterized by the chelating agent includes one or more of the group including EDTA acid or salts, citric acid or salts, glucuronic acid or salts, pyrophosphate salts, and chelating surfactants.
9. The wash of any one of preceding claims 1-8, further characterized by the thickener including one or more of the group including hydroxypropyl methylcellulose, hydroxypropyl cellulose, hydroxyethyl cellulose, guar and guar derivatives, alginate and alginate derivatives, and carbomer.
1C. A method of disinfecting skin characterized by: a) applying to the skin an effective amount of the composition of any one of preceding claims 1-9; b) maintaining contact between the composition and the skin for sufficient time to kill substantially all microorganisms present on the surface.
PCT/US1997/012279 1996-07-10 1997-07-09 Triclosan skin wash with enhanced efficacy WO1998001110A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP50537498A JP2002514163A (en) 1996-07-10 1997-07-09 Triclosan skin wash with improved efficacy
AU36639/97A AU726543B2 (en) 1996-07-10 1997-07-09 Triclosan skin wash with enhanced efficacy
EP97933460A EP0939618B1 (en) 1996-07-10 1997-07-09 Triclosan skin wash with enhanced efficacy
CA002260126A CA2260126C (en) 1996-07-10 1997-07-09 Triclosan skin wash with enhanced efficacy
DE69715444T DE69715444T2 (en) 1996-07-10 1997-07-09 TRICLOSAN CONTAINING SKIN CLEANSING AGENTS WITH IMPROVED EFFECTIVENESS

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US2145396P 1996-07-10 1996-07-10
US60/021,453 1997-07-09
US08/890,521 US5955408A (en) 1996-07-10 1997-07-09 Triclosan skin wash with enhanced efficacy
US08/890,521 1997-07-09

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WO1998001110A1 true WO1998001110A1 (en) 1998-01-15

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EP (1) EP0939618B1 (en)
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AU (1) AU726543B2 (en)
CA (1) CA2260126C (en)
DE (1) DE69715444T2 (en)
ES (1) ES2184119T3 (en)
WO (1) WO1998001110A1 (en)

Cited By (15)

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WO1999043205A1 (en) * 1998-02-26 1999-09-02 Pro-Ren A/S Gel-type disinfectant having a low alcohol content
FR2780283A1 (en) * 1998-06-30 1999-12-31 Rocher Yves Biolog Vegetale Inhibiting microbial growth in preservative-free aqueous cosmetic composition
US6107261A (en) * 1999-06-23 2000-08-22 The Dial Corporation Compositions containing a high percent saturation concentration of antibacterial agent
WO2000048554A2 (en) * 1999-02-16 2000-08-24 Ecolab Inc. Synergistic antimicrobial skin washing compositions
JP2001081017A (en) * 1999-09-10 2001-03-27 Shiseido Co Ltd Cleansing agent composition
FR2823669A1 (en) * 2001-04-23 2002-10-25 Oreal Process for increasing the tolerance threshold of sensitive skin by external application of a cosmetic, dermatological or hygienic composition containing a chelating agent
US6616922B2 (en) 2001-03-27 2003-09-09 The Dial Corporation Antibacterial compositions
US6696068B2 (en) 2001-05-11 2004-02-24 Unilever Home & Personal Care Usa, Division Of Conopco, Inc. Cosmetic cream cleanser
US6861397B2 (en) 1999-06-23 2005-03-01 The Dial Corporation Compositions having enhanced deposition of a topically active compound on a surface
CN104873432A (en) * 2015-05-28 2015-09-02 南阳市汇博生物技术有限公司 Hand-care disposable disinfection gel and preparation method thereof
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AU726543B2 (en) 2000-11-09
US5955408A (en) 1999-09-21
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JP2002514163A (en) 2002-05-14
DE69715444T2 (en) 2003-04-30

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