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
  • C11D3/48—Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions
• • 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
  • C11D3/2003—Alcohols; Phenols
  • C11D3/2006—Monohydric alcohols
  • C11D3/2037—Terpenes
• • 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
  • C11D3/2082—Polycarboxylic 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
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/26—Organic compounds containing nitrogen
  • C11D3/30—Amines; Substituted amines ; Quaternized amines

Definitions

• the invention relates to a liquid hard surface cleaning and disinfection composition.
• the invention more particularly relates to a hard surface disinfection composition that
• Liquid compositions for disinfecting and cleaning hard surfaces like floors, walls, windows, doors, furniture, and table tops in various indoor and outdoor locations are known. Toilets and bathrooms are other places where germs proliferate and
• disinfection and cleaning compositions in liquid form are widely used.
• Other types of hard surfaces that are cleaned by such compositions include utensils and other articles found in households, offices and other public places.
• ⁇ microbials Two of the popular classes of disinfecting / sanitizing actives are (i) bleaches and (ii) phenolics.
• Halogen and active oxygen are two most effective bleaches.
• Bleaches are compounds that liberate oxidising agents like chlorine, bromine, fluorine, nascent oxygen or other oxidizing agents that break the cell walls of microbes like bacteria and virus thereby disinfecting the surfaces thus treated.
• Phenolics are another class of anti ⁇ microbials often derived from essential oils extracted from natural sources which are formulated in an emulsified form and sold as floor and toilet cleaners.
• compositions include surfactants to either
• This invention has the advantage that essential oil actives like terpineol and thymol have a strong medicinal odour which is not liked by some consumers and it is advantageous to include thymol and
• terpineol at lower concentrations while ensuring that same efficient anti-microbial action. Further, it has been found by way of the present invention that inclusion of a chelating agent sodium tripolyphosphate provides for further enhanced antibacterial efficacy.
• Liquid hard surface cleaning compositions having a pH 9 to 12 comprising cationic surfactant are known.
• Another object of the present invention is to provide a liquid hard surface cleaning and disinfecting composition that has relatively fast antimicrobial action.
• composition with a pH in the range of 9 to 12 comprising
• a method of cleaning and disinfecting a hard surface comprising applying to said hard surface a composition of the first aspect diluted with water in a weight ratio of 1: 20 to 1: 200.
• the first aspect of the invention provides for a liquid hard surface antimicrobial cleaning composition with a pH in the range of 9 to 12.
• the composition comprises 0.5 to 4% by weight of benzalkonium chloride; 0.25 to 3% by weight of salt of di or tri carboxylic acid; 0.01 to 2% by weight of an essential oil active selected from thymol or terpineol; and 87 to 97% by weight water.
• the composition comprises 0.5 to 4%, more preferably 1 to 2%, further more preferably 1.25 to 1.75% cationic surfactant benzalkonium chloride.
• the composition comprises 0.25 to 3%, preferably 0.5 to 2%, more preferably 0.5 to 1.5% by weight of the composition salt of di or tri carboxylic acid.
• the salt of di or tri carboxylic acid is preferably chosen from an oxalate, fumarate, phthalate, maleate, malate, malonate or citrate.
• the salt of di or tricarboxylic acid is most preferably a phthalate, malate, malonte, or citrate.
• Alkali metal or alkaline earth metal salts are preferred, more preferably alkali metal salts of which sodium salt is most preferred. Structure of salts of some of the carboxylic acids are given below:
• the composition comprises an essential oil antimicrobial active selected from thymol or terpineol at 0.01 to 2% by weight of the composition.
• Preferred antimicrobial compositions of the present invention have thymol higher than 0.05 and lesser than 0.3% by weight. Thymol may be added to the antimicrobial composition in
• thyme oil or thyme extract comprising thymol may be added to the antimicrobial
• Thyme oil or thyme extract is obtained from the thyme plant.
• Thyme plant refers to a plant belonging be genus Thymus and includes but is not limited to the following
• Thymus vulgaris Thymus zygis , Thymus satureoides, Thymus mastichina , Thymus broussonetti , Thymus maroccanus , Thymus pallidus , Thymus algeriensis , Thymus serpyllum, Thymus pulegoide, and Thymus citriodorus .
• Preferred antimicrobial compositions of the present invention have terpineol higher than 0.05 and lesser than 1% by weight.
• the terpineol is preferably selected from alpha-terpineol , beta-terpineol , gamma-terpineol or mixtures thereof. It is particularly preferred that the terpineol is alpha-terpineol.
• Terpineol may be added to the antimicrobial composition in purified form. Alternatively pine oil comprising terpineol may be added to the antimicrobial composition.
• the composition optionally comprises sodium tripoly phosphate (STPP) .
• STPP sodium tripoly phosphate
• composition of the invention comprises water as a preferred carrier. Water is present in 87 to 97%, preferably 90 to 95% by weight of the composition.
• composition of the invention optionally comprises a
• surfactant is a non-ionic surfactant.
• Non-ionic surfactant is preferably present in an amount of 2 to 10% by weight of the composition.
• Particularly preferred nonionic surfactants are fatty alcohol ethoxylates preferably C8-C22, more preferably C8-C16 fatty alcohol ethoxylates, comprising between 1 and 8 ethylene oxide groups.
• Suitable surfactant concentrations in liquid form of hard surface cleaning compositions are preferably from 1 to 5 % by weight of the composition.
• the composition of the invention has pH in the range of 9 to 12, preferably in the range of 10.5 to 11.5. This could be achieved by incorporating the essential ingredients of the invention in selected amounts, else may be achieved by
• the alkaline agent is a compound having a hydrophilic property and a hydrophilic property.
• the alkaline agent is preferably present in 0.1 to 1% by weight of the composition .
• composition of the invention can be achieved in the absence of conventional disinfectants like bleaches e.g. halogens, halogenated
• bleaches compounds and active oxygen based bleaches.
• small amount of such bleaches may be present in the composition e.g. less than 1%, preferably less than 0.5%, more preferably less than 0.1% and the efficacy of the composition is achievable even with the bleaches being absent from the composition.
• composition may further comprise various additional ingredients known to a person skilled in the art.
• additional ingredients known to a person skilled in the art.
• additional ingredients include but are not limited to:
• perfumes perfumes, pigments, preservatives, emollients, sunscreens, emulsifiers, gelling agents, or thickening agents.
• the antimicrobial composition may be in form of a liquid but the liquid composition may be further thickened to a gel or a paste.
• the antimicrobial composition of the present invention can be used for cleansing and care of hard surfaces such as glass, metal, plastic, wood, ceramic and the like.
• a method of cleaning and disinfecting a hard surface comprising applying to said hard surface a composition of the invention diluted with water in a weight ratio of 1: 20 to 1: 200, preferably in a ratio of 1:40 to 1:80.
• the method preferably comprises a step of rinsing the surface with a suitable solvent preferably water or the surface may be wiped with a suitable wipe.
• composition of the invention provides an antimicrobial action where the contact time of the antimicrobial actives with the surface is low, i.e. of the order of less than 5 minutes, preferably less than 2 minutes, further more preferably less than a minute and in many cases less than 15 seconds.
• Antibacterial compositions for hard surface cleaning as shown in Table - 1 read along with Table - 2 were prepared.
• the compositions were tested for antibacterial efficacy using the European Suspension Test BS EN1276 which is briefly described below:
• test suspension of bacteria (1 ml) was added to a sample of the product under a certain dilution condition (8 ml) along with a specific soil (1 ml) .
• the mixture was maintained at 20°C for 5 minutes. After this period of contact time, an aliquot was taken and was immediately neutralized by a validated method.
• the number of bacteria in each sample were determined by plating in TSA agar and the reduction in viable count was calculated after incubating for 48 hours.
• aeruginosa ATCC 15442 (at 10 7 cfu/ml concentration) ; the dilution was 1:60 of the product (a floor cleaner) in hard water.
• the soil used was used was Bovine Serum Albumin (BSA) at a final concentration of 0.03%.
• BSA Bovine Serum Albumin
• the pH of the samples was 11.0. Table - 1
• Table - 2 Compositions as per Table - 1 where prepared using the di/carboxylic acids and thymol and/or terpineol
• compositions as per the invention (Examples 3,4,6,7,9,10) provide for vastly superior antibacterial efficacy as compared to compositions outside the invention (Examples 1,2,5,8).
• compositions of the invention are effective even at short contact times of about 30 seconds.
• compositions as shown in Table - 4 were tested for
• Example 15 to 19 give vastly superior antibacterial efficacy as compared to a sample outside the invention (Example 14) .

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)
• Agricultural Chemicals And Associated Chemicals (AREA)
• Detergent Compositions (AREA)

Priority Applications (6)

Applications Claiming Priority (2)

Publications (1)

Family

ID=46980938

Family Applications (1)

Country Status (7)

Cited By (12)

Families Citing this family (4)

Citations (7)

Family Cites Families (10)

• 2012
  • 2012-09-26 CN CN201280052095.0A patent/CN103890160B/zh active Active
  • 2012-09-26 PL PL12769078T patent/PL2773739T3/pl unknown
  • 2012-09-26 EP EP12769078.2A patent/EP2773739B1/en active Active
  • 2012-09-26 MX MX2014005403A patent/MX339345B/es active IP Right Grant
  • 2012-09-26 EA EA201400533A patent/EA022049B1/ru not_active IP Right Cessation
  • 2012-09-26 BR BR112014008053-4A patent/BR112014008053B1/pt active IP Right Grant
  • 2012-09-26 WO PCT/EP2012/068987 patent/WO2013064315A1/en active Application Filing

Patent Citations (7)

Also Published As

Similar Documents

Legal Events