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
  • C11D3/37—Polymers
  • C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • C11D3/3757—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
  • C11D3/3765—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions in 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
  • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
  • C11D7/02—Inorganic compounds
  • C11D7/04—Water-soluble compounds
  • C11D7/06—Hydroxides
• • 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
  • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
  • C11D7/02—Inorganic compounds
  • C11D7/04—Water-soluble compounds
  • C11D7/10—Salts
• • 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
  • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
  • C11D7/22—Organic compounds
  • C11D7/26—Organic compounds containing oxygen
  • C11D7/265—Carboxylic acids or 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
  • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
  • C11D7/50—Solvents
  • C11D7/5004—Organic solvents

Definitions

• the present invention relates to a composition and a method for treating substrates, in particular hard surfaces, to make the substrate hydrophilic; and for imparting anti-fogging / anti-condensation properties onto said surface.
• US5844019 discloses a tooth cleaning composition comprising carboxylic acid, quaternary ammonium salts and aluminium III salts.
• the object of the present invention is to provide a composition for rendering a surface less susceptible for vapour deposition.
• composition comprising poly aluminium chloride, a polycarboxylate polymer and a weak acid, when applied to a surface, renders said surface super hydrophilic, thus causing the repellence of small water droplets to provide and anti-fogging effect.
• the present invention provides a surface treatment composition
• a surface treatment composition comprising 0.05 - 5% of poly aluminium chloride, 0.05 - 5% of a carboxylic polymer, 0.01 - 5% of a weak organic acid, and aqueous liquid; wherein the pH of the composition is between 7 and 9.5; and wherein the PAC : carboxylic polymer ratio is at least 2:5.
• the invention provides a process for treating a substrate (e.g. fabrics, hard surfaces) comprising the steps of treating the substrate with a composition according to the invention, and leaving the substrate to dry.
• a substrate e.g. fabrics, hard surfaces
• the invention provides a bottled cleaning composition comprising the compositions according to the invention.
• glass surface any surface having a vitreous or vitrified surface, including but not limited to glass and vitreous tiles.
• the invention relates to a composition for treating a surface comprising poly aluminium chloride, poly acrylic acid polymer, a weak organic acid and water; and wherein the pH of the composition is between 7 and 9.5, and wherein the PAC to polymer ratio is at least 2:5.
• Poly aluminium chloride is a known polyelectrolyte.
• the aluminium content is typically 12-20%.
• PAC may have small amount of impurities including traces of SO 4 2- , CO 3 2-; NO 3 - , Br - , HCO 3 - , and HSO 4 - ; but such impurities are typically present in a concentration of less than 2%, more preferably less than 1%, still more preferably less than 0.5% or even less than 0.1 % by weight of the PAC.
• the PAC is present in the composition in a concentration of between 0.05 - 5% by weight, preferably not more than 4%, more preferably not more than 3%, still more preferably not more than 2.5%, or even less than 2%.
• Preferred carboxylic polymers are polyacrylates, polymaleates, polyacetates, polyhydroxyacrylates, polyacrylate/polymaleate and polyacrylate/ polymethacrylate copolymers, aminopolycarboxylates and polyacetal carboxylates.
• Poly(acrylic acid) or PAA is the most preferred polymer.
• the monomer of poly(acrylic acid) is acrylic acid. In a water solution at neutral pH, many of the side chains of PAA will lose their protons and acquire a negative charge.
• PAA is thus understood to be a polymer of repeating units of -[CH2-CH(COOH)] n -.
• the polymer is present in the composition in a concentration of between 0.05 - 5% by weight, preferably not more than 4%, more preferably not more than 3%, still more preferably not more than 2.5%, or even less than 2%.
• the PAC : polymer ratio is at least 2:5. Preferably between 2:5 and 20:1, more preferably between 1:1 and 10:1.
• Preferred organic acids are organic acids selected from, such as di- and tri-carboxylic acids containing ⁇ -hydroxy groups, and phenolic acids with ortho-hydroxyls should be considered.
• Tricarboxylic chelating ligands include but are not limited to citric acid are isocitric acid, aconitic acid, propane-1,2,3-tricarboxylic acid (tricarballylic acid, carballylic acid), trimesic acid. Other examples include gluconic, tartaric, EDTA or their derivatives. Citric acid is the most preferred.
• the acid is present in the composition in a concentration of between 0.01 - 5% by weight, preferably the concentration is at least 0.05%, but preferably not more than 4%, more preferably not more than 3%, still more preferably not more than 2.5%, or even less than 2%.
• composition is preferably an aqueous liquid.
• aqueous liquid is a solvent and water mixture
• the solvents are preferably lower alcohols, more preferably methanol, ethanol and/or isopropanol.
• the solvent is typically present in the aqueous liquid in a concentration of between 1 and 20%, more preferably between 2 and 10%, more preferably between 3 and 8% by weight of the liquid.
• the invention provides a process for treating a substrate, comprising the steps in sequence of applying the composition according to the invention to a hard surface and leaving the surface to dry.
• the surface is preferably not rinsed between these steps.
• the surface may be wiped after application of the composition and then be left to dry.
• the surface is found to be more hydrophilic after treatment, and thereby less susceptible to deposition of fog or frost.
• composition may be packaged in the form of any commercially available liquid composition, typically in the form of a bottle containing the liquid.
• the composition is preferably applied using a trigger spray applicator.
• a trigger spray application enables fast and easy use for the consumer and additionally it brings a suitable amount of air into the composition, which aides in the foam formation.
• the compositions of the invention may be stored in and dispensed by any suitable means, but spray applicators are particularly preferred. Pump dispensers (whether spray or non-spray pumps) are also possible.
• the present invention provides a container for a liquid hard surface cleaner, the container comprising a reservoir containing the hard surface cleaning composition of the invention, and spray dispenser for dispensing the composition in the form of a spray.
• the spray dispenser is preferably a trigger spray but may be any mechanical means for ejecting the liquid in spray or aerosol form.
• Stock solutions were prepared by mixing 0.5 g/L polyacrylic acid 0.5 g/L PAC in water. To it 0.5 g/L citric acid solution was added. The solution pH was made alkaline to 8.5 using ammonia solution or NaOH solution. 0.5 ml of the solution was applied on the glass substrate, left for 2 minutes and then wiped till dry.
• the treated glass slides were kept in the freezer at -15 C for 10 minutes. The slides were then exposed to hot steam at 100°C for 5 seconds. The fog generated on the glass slides was then analyzed instantly by measuring the transmittance in the visible light in a spectrophotometer (PERKIN Elmer Lambda 900), between 400-700nm. Higher transmittance of a treated glass slide is a measure of less fog generation.
• a spectrophotometer PERKIN Elmer Lambda 900
• the treated glass slides were kept in the freezer at -15 C for 10 minutes. The slides were then exposed to room temperature (25°C) for 5 seconds. Then analyzed instantly by measuring the transmittance in the visible light in a spectrophotometer (PERKIN Elmer Lambda 900), between 400-700nm. Higher transmittance of a treated glass slide is a measure of less frost generation.
• a blank (a) is included for comparison; the blank being a clean, untreated glass slide.
• the glass slides were kept in the freezer at -15 C for 10 minutes.
• the slides were then exposed to hot steam at 100°C for 5 seconds.
• the fog generated on the glass slides was then analyzed instantly by measuring the transmittance in the visible light in a spectrophotometer (PERKIN Elmer Lambda 900), between 400-700nm. Higher transmittance of a treated glass slide is a measure of less fog generation.
• Example 2 variation in the concentration of PAC and PAA
• a blank (d) is included for comparison; the blank being a clean, untreated glass slide.
• the glass slides were kept in the freezer at -15 C for 10 minutes. The slides were then exposed to hot steam at 100°C for 5 seconds. The fog generated on the glass slides was then analyzed instantly by measuring the transmittance in the visible light in a spectrophotometer (PERKIN Elmer Lambda 900), between 400-700nm. Higher transmittance of a treated glass slide is a measure of less fog generation.
• a spectrophotometer PERKIN Elmer Lambda 900
• the transmittance data in the table below show the transparency of the slide. The higher the transmittance, the better the transparency, the lower the transmittance, the more fogging. set no sample Wavelength(nm) 400 550 700 g Blank 46 45 44 9 0% ethanol 99 99 99 10 5% ethanol 98 98 97 11 20% ethanol 90 90 90 90
• compositions according to the invention are compared to compositions missing at least one of the required ingredients.
• the treated glass slides were kept in the freezer at -15 C for 10 minutes. The slides were then exposed to hot steam at 100°C for 5 seconds. The fog generated on the glass slides was then analyzed instantly by measuring the transmittance in the visible light in a spectrophotometer (PERKIN Elmer Lambda 900), between 400-700nm. Higher transmittance of a treated glass slide is a measure of less fog generation.
• a spectrophotometer PERKIN Elmer Lambda 900
• compositions are summarised in the table below.
• the transmittance is higher when ammonia is used compared to NaOH, thought to be caused by some absorbance of green light by the NaOH near the longer wavelengths.
• the treated glass slides were kept in the freezer at -15 C for 10 minutes. The slides were then exposed to hot steam at 100°C for 5 seconds. The fog generated on the glass slides was then analyzed instantly by measuring the transmittance in the visible light in a spectrophotometer (PERKIN Elmer Lambda 900), between 400-700nm. Higher transmittance of a treated glass slide is a measure of less fog generation.
• the results show that the transmittance increases with increase in the pH of the solutions.
• the desired pH being 7 and above.
• the glass slides were kept in the freezer at -15 C for 10 minutes. The slides were then exposed to room temperature (25°C) for 5 seconds. Then analyzed instantly by measuring the transmittance in the visible light in a spectrophotometer (PERKIN Elmer Lambda 900), between 400-700nm. Higher transmittance of a treated glass slide is a measure of less frost generation.
• T is a blank included for comparison; the blank being a clean, untreated glass slide wavelength (nm) Set No 400 550 700 T 39 42 36 17 70 72 72 18 53 55 54 19 66 67 68
• SetV Stock solutions were prepared by mixing 0.5 g/L polyacrylic acid 0.5 g/L aluminum chloride hexahydrate in water. To it 0.5 g/L citric acid solution was added. The solution pH was made alkaline to 8.5 using ammonia solution. 0.5 ml of the solution was applied on the glass substrate, left for 2 minutes and then wiped till dry.
• SetX Stock solutions were prepared by mixing 0.5 g/L polyacrylic acid 0.5 g/L aluminum chloride hexahydrate in water. To it 0.5 g/L citric acid solution was added. The solution pH was made alkaline to 8.5 using NaOH solution. 0.5 ml of the solution was applied on the glass substrate, left for 2 minutes and then wiped till dry.
• U and W are blank included for comparison; the blank being a clean, untreated glass slide.
• the treated glass slides were kept in the freezer at -15°C for 10 minutes. The slides were then exposed to hot steam at 100°C for 5 seconds. The fog generated on the glass slides was then analyzed instantly by measuring the transmittance in the visible light in a spectrophotometer (PERKIN Elmer Lambda 900), between 400-700nm.
• a spectrophotometer PERKIN Elmer Lambda 900

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• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Engineering & Computer Science (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Wood Science & Technology (AREA)
• Life Sciences & Earth Sciences (AREA)
• Inorganic Chemistry (AREA)
• Health & Medical Sciences (AREA)
• Emergency Medicine (AREA)
• Detergent Compositions (AREA)
• Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
• Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
• Paints Or Removers (AREA)

Priority Applications (2)

Applications Claiming Priority (4)

Publications (2)

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Family Applications (1)

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• 2012
  • 2012-04-04 WO PCT/EP2012/056182 patent/WO2012146473A1/en active Application Filing
  • 2012-04-04 EP EP12713139.9A patent/EP2702130B1/en not_active Not-in-force
  • 2012-04-04 ES ES12713139.9T patent/ES2535378T3/es active Active
  • 2012-04-04 CN CN201280019870.2A patent/CN103502417B/zh not_active Expired - Fee Related
  • 2012-04-04 EA EA201301191A patent/EA024377B1/ru not_active IP Right Cessation
  • 2012-04-04 BR BR112013026942A patent/BR112013026942A2/pt not_active IP Right Cessation
  • 2012-04-04 PL PL12713139T patent/PL2702130T3/pl unknown
  • 2012-04-23 AR ARP120101386A patent/AR086478A1/es unknown
• 2013
  • 2013-10-21 ZA ZA2013/07828A patent/ZA201307828B/en unknown

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