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
  • C11D3/26—Organic compounds containing nitrogen
  • C11D3/30—Amines; Substituted amines ; Quaternized amines
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
  • A01N33/02—Amines; Quaternary ammonium compounds
  • A01N33/08—Amines; Quaternary ammonium compounds containing oxygen or sulfur
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
  • A01N59/02—Sulfur; Selenium; Tellurium; Compounds 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
  • C11D1/38—Cationic compounds
  • C11D1/42—Amino alcohols or amino ethers
  • C11D1/44—Ethers of polyoxyalkylenes with amino alcohols; Condensation products of epoxyalkanes with amines
• • 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
  • C11D1/83—Mixtures of non-ionic with anionic 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
  • C11D1/835—Mixtures of non-ionic with cationic 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
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/02—Inorganic compounds ; Elemental compounds
  • C11D3/04—Water-soluble compounds
  • C11D3/042—Acids
• • 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
  • C11D3/39—Organic or inorganic per-compounds
  • C11D3/3942—Inorganic per-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
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/39—Organic or inorganic per-compounds
  • C11D3/3947—Liquid 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
  • C11D3/48—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
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/72—Ethers of polyoxyalkylene glycols
• • 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
• • 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
  • C11D3/34—Organic compounds containing sulfur
  • C11D3/3418—Toluene -, xylene -, cumene -, benzene - or naphthalene sulfonates or sulfates

Definitions

• the present invention relates to acidic cleaning compositions, and in particular to acidic antimicrobial cleaning composition suitable for use on hard surfaces.
• compositions generally comprise sufficient acid to give a low pH and may comprise a thickening agent so as to cause the composition to cling to and be retained on sloping surfaces, such as the inside of toilet bowls.
• thickeners include both ethoxylated and unethoxylated tertiary amines, either alone or in combination with a hydrotrope.
• acids for use in such compositions include sulphamic and phosphoric acids.
• compositions should be antimicrobial and that they should exhibit this antimicrobial effect against a broad range of microorganisms.
• various bactericides have been proposed as additives to these compositions.
• GB 1443244 relates to acid cleaners and descalers which comprise as a thickening agent an ethoxylated tertiary amine of which ETHOMEEN S12 (N,N-dihydroxyethyl-oleylamine) is given as an example.
• the composition also comprises acids which are selected from mineral acids and acid salts of strong inorganic acids such as sulphamic acid.
• Bacteriocides are an additional, optional component.
• FR 2459830 discloses compositions which comprise non- ethoxylated and ethoxylated amines together with sulphamic acid.
• the composition may also comprise disinfectants.
• WO 95/27768 discloses cleaning compositions, particularly intended for painted and plastic surfaces comprising ethoxylated C10-C18 aliphatic amines containing 3-8 ethoxy units (preferably 4-6) and C6-C10 carboxylic acids and/or organic or inorganic chelating agents .
• the compositions are not disclosed to have disinfecting properties.
• AU-A-57022/86 relates to cleaning systems which comprise a mixture of sulphamic and phosphoric acids and an acid stable surfactant.
• Bacteriocides are optional and formalin is disclosed as a bacteriocide which improves the antibacterial effect of the acids.
• EP-B-0276501 discloses thickened aqueous cleaning compositions which comprise 0.1-50%wt of a weak acid having a pK >2 (of which sulphamic is given as an example) , 0.1-20%wt of an amine which can include 2% of oleyl- bis- (2-hydroxyethyl) -amine and 0.01%-5%wt hydrotrope (sodium xylenesulphonate is given as an example) . Disinfecting agents are optional.
• EP-A-0314232 relates to compositions which undergo a viscosity increase on dilution and discloses that thickened liquid detergent compositions can be prepared with an amine
• TM oxide such as ETHOMEEN S12
• betaine or quaternary ammonium compound and hydrotrope (sodium xylene- sulphonate) .
• hydrotrope sodium xylene- sulphonate
• compositions which comprise both alkoxylated aliphatic amines and sulphamic acid show an improved antimicrobial effect. It is believed that this is due to a synergistic interaction of these components and that the effect is obtained irrespective of the presence (i.e. also in the absence) of other antimicrobial species.
• compositions which comprise: a) an alkoxylated aliphatic amine, b) sulphamic acid, and, c) a source of peroxygen species.
• a first aspect of the present invention there is provided the use of 0.01-15%wt of an alkoxylated aliphatic amine having an aliphatic hydrocarbon group of 8- 20 carbon atoms and 1-8 units of alkoxylation per mole of amine to improve the antimicrobial effectiveness of an acidic, antimicrobial composition comprising 0.01-15%wt of a sulphamic acid.
• an acidic, antimicrobial composition comprising: a) 0.01-15%wt of an alkoxylated aliphatic amine with 8-20 carbon atoms and 1-8 units of alkoxylation; b) 0.01-15%wt of a sulphamic acid, and c) a source of peroxygen species.
• a method of disinfecting surfaces which comprises the step of treating the surface with an acidic, antimicrobial composition comprising: a) 0.01-15%wt of an alkoxylated aliphatic amine with 8-20 carbon atoms and 1-8 units of alkoxylation and b) 0.01-15%wt of sulphamic acid.
• the alkoxylated aliphatic amine is a tertiary amine of the general formula:
• R is an alkyl or alkenyl group comprising 8-20 carbon atoms
• A is an ethoxy or propoxy group
• x and y may be the same or different and are integers from 1-4.
• R has 8-18, more preferably 10-18 carbon atoms
• x and y are preferably 1-3, more preferably 1 or 2.
• the preferred materials are ethoxylated amines wherein A is -OCH 2 CH 2 -.
• R is C14-C18 alkyl or alkenyl and is e.g. derived from oleic, palmitic or myristic acid.
• Suitable ethoxylated aliphatic amines are e.g.:
• An example of such material is ETHOMEEN BTB/12 TM, which is also available from AKZO and is a mixture of
• Such a mixed material can be prepared by synthesis using combined starting materials mixed in the appropriate ratio, or obtained by mixing commercially available materials such as ETHOMEEN HT12TM and ETHOMEEN S12TM in the desired ratio.
• particularly suitable ethoxylated amines or mixtures of such amines are those wherein the aliphatic group is predominantly (for more than 50%) derived from C16 and C18 fatty acids and wherein (average) x+y is 2-3
• Preferred levels of the alkoxylated aliphatic amine are l-10%wt on product with levels of 2-6%wt on product being particularly preferred.
• Typical levels of sulphamic acid range from l-10%wt on product with levels of 2-6% on product being particularly preferred.
• typical sources of peroxygen species include one or more of hydrogen peroxide, peracetic acid and/or other organic or inorganic peroxygen sources.
• Hydrogen peroxide is a preferred source of peroxygen species.
• Typical levels of hydrogen peroxide range from l-10%wt on product with levels of 3-8% being particularly preferred.
• compositions according to the invention additionally comprise nonionic surfactant and/or hydrotrope.
• Suitable nonionic detergent active compounds can be broadly described as compounds produced by the condensation of alkylene oxide groups, which are hydrophilic in nature, with an organic hydrophobic compound which may be aliphatic or alkyl aromatic in nature.
• the length of the hydrophilic polyoxyalkylene radical which is condensed with any particular hydrophobic group can be readily adjusted to yield a water-soluble compound having the desired degree of balance between hydrophilic and hydrophobic elements.
• Suitable nonionic surfactants include alkoxylated alcohols and alkyl phenols, preferably ethoxylated alcohols
• the preferred ethoxylated alcohols are of the general formula :
• R ⁇ . is straight or branched C8-C18 alkyl or hydroxyalkyl (preferably alkyl) and m is, on average, 1-14.
• Ethoxylated alcohols suitable for use in the present invention include the LIA series available in the marketplace from DAC, such as LIAL 111.10EO [TM] .
• Typical levels of nonionic surfactant in products according to the present invention range from 0-5%.
• Suitable hydrotropes include lower aliphatic alcohols, especially ethanol, urea and/or alkylaryl-sulphonates such as salts of, particularly alkali metal salts of toluene-, cumene- or xylene-sulphonate.
• the preferred hydrotropes are alkylaryl-sulphonates, most preferably sodium cumene-sulphonate.
• a suitable material is ELTESOL SC 40 (TM Albright and Wilson) .
• Typical levels of hydrotrope range from 0.05-2%wt on product.
• the alkoxylated aliphatic amine is present together with an anionic surfactant at levels of these materials are such that they interact so as to thicken the composition
• formulations comprising the alkylaryl sulphonates are formulated at a pH below 2, more preferably below 1.5, even more preferably below 1.
• the ethoxylated amine behaves as a cationic surfactant and interacts with the alkylaryl sulphonate to form a water- insoluble gel which deposits as a monolayer on surfaces. It is believed that this monolayer lowers the surface energy of the surface and retards or prevents the deposition of further limescale.
• the preferred mole ratio of the ethoxylated amine and the anionic surfactant is 3-3.5, more preferably 3.25-3.5.
• the preferred viscosity of the cleaning compositions according to the present invention is between 50 mPas and 1000 mPas when measured at 11.7 sec-1 shear and at 25 Celcius using Haake RV2 rotoviscometer and an MVl bob.
• compositions according to the present invention comprise: a) l-10%wt, preferably 3-5%wt sulphamic acid, b) l-10%wt, preferably 2-5%wt ethoxylated amine, c) 0-5%wt, preferably 0.05-l%wt, nonionic surfactant, d) 0.05-2%wt, preferably 0.4-l.l%wt, anionic surfactant hydrotrope l-10%wt, preferably 4-6%wt, hydrogen peroxide
• Gums, particularly xanthan gums are suitable thickeners.
• Preferred xanthan gums are the Kelzan (RTM) series (available from Kelco Corp) . If present, typical levels of xanthan gum range from 0.05-lwt%.
• the resulting viscosity of the composition, as measured on a Haake RV2 rotoviscometer (RTM) is preferably in the range 10-200 mPas at 20 reciprocal seconds shear and 25°C, using an MVl bob. More preferably the viscosity is 10-100 mPas under the conditions mentioned above.
• Metal ion sequestrants such as ethylenediamine tetra- acetate, amino-poly-phosphonates (such as those in the
• DEQUEST TM range ex. Monsanto
• phosphates and a wi ⁇ de variety of other poly-functional organic acids and salts can also optionally be employed.
• Preferred metal ion complexing agents are selected from dipicolinic acid, ethylenediamine tetra-acetic acid (EDTA) and its salts, hydroxyethylidene-diphosphonic acid (Dequest 2010) , ethylenediamine-tetra (methylene-phosphonic acid) (Dequest 2040), diethylenetriamine-penta (methylene-phosphonic acid) (Dequest 2060) .
• minor components also include those typically found in cleaning compositions and are selected from opacifiers, colours perfumes and fluorescers .
• Preferred levels of perfume range from 0.05-2%wt. Acid stable perfumes are available from a variety of sources.
• composition according to the present invention comprises:
• Typical products having the above formulation made with 3.0%wt of the amine and around 0.56%wt of the SCS are clear, have a specific gravity of 1.040 g/ml, an initial viscosity at 106 sec-1 (at 25°C) of 120mPas, an initial viscosity at 11.7 sec-1 (at 25°C) of 300mPas and pH 0.9 (at 25°C) .
• a specific gravity 1.040 g/ml
• an initial viscosity at 106 sec-1 (at 25°C) of 120mPas an initial viscosity at 11.7 sec-1 (at 25°C) of 300mPas and pH 0.9 (at 25°C)
• pH 0.9 at 25°C
• compositions of the invention were carried out with compositions of the invention and comparative compositions at typical in-use dilutions (2%) of a composition according to the invention.
• the following bacterial strains were used in the suspension tests .
• Antibacterial activity was determined according to EST (DD177:1988) and performed under soil conditions of 0.03%wt bovine serum albumen (BSA) at 19.5 Celcius. Total viable count was determined after a five minute and a 30 minute contact time using solutions as listed below and water of standard hardness for controls. Log reduction relative to water were determined. Viable organisms were determines by culturing on Nutrient or Tryptone-soya agar for 48 hours at 37°C. Log decimal reductions were determined from the viable counts. Table 1 below gives the results for 5 and 30 minutes contact time. Concentrations in the assay, which were representative of those encountered in a toilet bowl after use of the product according to the invention, were as follows:

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• Chemical & Material Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Wood Science & Technology (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Organic Chemistry (AREA)
• Inorganic Chemistry (AREA)
• Agronomy & Crop Science (AREA)
• Pest Control & Pesticides (AREA)
• Plant Pathology (AREA)
• Health & Medical Sciences (AREA)
• Dentistry (AREA)
• General Health & Medical Sciences (AREA)
• Zoology (AREA)
• Environmental Sciences (AREA)
• Agricultural Chemicals And Associated Chemicals (AREA)
• Detergent Compositions (AREA)

Priority Applications (7)

Applications Claiming Priority (2)

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Citations (4)

• 1997
  • 1997-10-13 GB GBGB9721690.7A patent/GB9721690D0/en not_active Ceased
• 1998
  • 1998-10-05 IN IN643BO1998 patent/IN185395B/en unknown
  • 1998-10-07 ZA ZA9809146A patent/ZA989146B/xx unknown
  • 1998-10-09 TR TR2000/00973T patent/TR200000973T2/xx unknown
  • 1998-10-09 KR KR1020007003931A patent/KR20010015752A/ko not_active Withdrawn
  • 1998-10-09 JP JP2000515990A patent/JP2001520260A/ja not_active Withdrawn
  • 1998-10-09 PL PL98339841A patent/PL339841A1/xx unknown
  • 1998-10-09 CA CA002304234A patent/CA2304234A1/en not_active Abandoned
  • 1998-10-09 WO PCT/EP1998/006634 patent/WO1999019432A1/en not_active Application Discontinuation
  • 1998-10-09 ID IDW20000659A patent/ID23990A/id unknown
  • 1998-10-09 SK SK535-2000A patent/SK5352000A3/sk unknown
  • 1998-10-09 AR ARP980105038A patent/AR013681A1/es unknown
  • 1998-10-09 AU AU12299/99A patent/AU750959B2/en not_active Ceased
  • 1998-10-09 EP EP98955492A patent/EP1025191A1/en not_active Withdrawn
  • 1998-10-09 HU HU0100559A patent/HUP0100559A3/hu unknown

Patent Citations (5)

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