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
  • C11D3/20—Organic compounds containing oxygen
  • C11D3/2003—Alcohols; Phenols
  • C11D3/2006—Monohydric alcohols
  • C11D3/201—Monohydric alcohols linear
• • 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
  • 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
  • C11D3/40—Dyes ; Pigments
  • C11D3/42—Brightening agents ; Blueing agents
• • 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
  • C11D1/02—Anionic compounds
  • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
  • C11D1/29—Sulfates of polyoxyalkylene 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
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/662—Carbohydrates or derivatives
• • 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
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/75—Amino oxides

Definitions

• the present invention relates to hard surface cleaning compositions which contain a UV absorbing agent.
• EP697481 (CIBA-GEIGY: 1995) concerns textile treatment with a composition comprising UV-A compound, emulsifying agent, water and polysiloxane (i.e. silicone) in an otherwise aqueous textile treatment composition which comprises:
• formulations for household cleaning comprise a vast range of substances, are formulated at a broad range of generally neutral and alkaline pH's and comprise a range of product forms (gels, liquids, powders etc.).
• broad- spectrum UV adsorbing agents such as benzophenone derivatives
• UV adsorbing agents can be difficult to incorporate in compositions due to their insolubility, cross-reaction with other components etc.
• it is known to overcome this problem by putting UV adsorbing agents into products which are in the form of oily emulsions.
• putting a broad- spectrum UV adsorbing agent into the whole range of possible household cleaners without sacrificing formulation properties and flexibility is a difficult task and there is a need to find a simple solution to this problem.
• UV adsorbing agent in a window-cleaning composition. It is believed that the use of such a composition will leave sufficient UV-absorbed on the windows to reduce the transmission of UV therethrough and consequently reduce the extent of UV damage to the contents of the room, e.g. decorations, furnishing, fixtures and fittings, lit by the window.
• a further advantage of this invention is the need only to reformulate a single product to protect a wide range of materials.
• a first aspect of the present invention relates to a window cleaning composition
• a window cleaning composition comprising a surfactant and a UV-adsorbing agent.
• a second aspect of the present invention relates to a method of reducing UV damage to the contents of a room having at least one window which comprises the step of treating the window with a cleaning composition comprising a surfactant and at least one UV adsorbing agent .
• the UV-adsorbing agent is a UV-B absorber. Typical examples thereof are benzophenone derivatives. More preferably the UV adsorbing agent is 2-hydroxy-4- methoxybenzophenone (benzophenone-3) . Suitable materials are available in the marketplace from BASF and Haarmann & Reimer (H&R) .
• laundry detergent compositions comprise so called optical whiteners or brighteners, i.e. fluorescent compounds which absorb UV light and re-emit this as visible, particularly blue, light.
• optical whiteners or brighteners i.e. fluorescent compounds which absorb UV light and re-emit this as visible, particularly blue, light.
• Such compounds have no use in the hard surface cleaning compositions of the present invention and are therefore not comprised in the term "UV absorbing agent ' .
• Suitable levels of UV adsorbing agents are from 0.01%wt upwards, preferably at least 0.05%, more preferably at least 0.08%.
• the maximum amount is generally 5%wt. Higher amounts than 2%wt rarely serve a useful purpose and the amounts are preferably at most 1%, more preferably at most 0.5%.
• the pH of the composition can fall in the range 1.0- 12, it is preferable that the pH of the composition is at least 2.0, most preferably at least 3.0. Above pH 8.5 the benefit of some absorbers, such as the benzophenone derivatives, falls off although others, such as phenylbenzimidazole sulphonic acid, are effective until pH 12. Below pH 3.0 surface damage may occur, especially of enamel surfaces .
• the most preferred pH is from around 3.0 to 8.5.
• a base such as sodium hydroxide or ammonia and/or an acid such as citric acid are generally used to bring the pH to the required level .
• compositions of the invention are aqueous and are preferably not macroscopic emulsions.
• Other preferred components of formulations according to the invention are described in greater detail below.
• compositions of the present invention comprise at least one surfactant component.
• Surfactants are selected from the nonionic, anionic, cationic or amphoteric surfactant materials.
• the surfactant preferably comprises one or more of non- ionic and anionic surfactant components.
• Nonionic surfactants show particular efficacy on fatty soils and are most preferred.
• Cationic surfactants can be included in the compositions of the invention as hygiene agents .
• the composition can include one or more amphoteric surfactants, preferably betaines, or other surfactants such as amine-oxide and alkyl-amino-glycinates.
• amphoteric surfactants preferably betaines, or other surfactants such as amine-oxide and alkyl-amino-glycinates.
• Betaines are preferred for reasons of cost, low toxicity and wide availability. It is believed that amphoteric surfactants show a slight synergy with some organic acids (when present) as regards antimicrobial effects.
• the overall level of surfactant in the compositions of the invention is at least 0.05%wt, more preferably at least 0.1, most preferably 0.5 or more. Also preferably the overall level of surfactant is at most 10%wt, more preferably at most 8%wt, most preferably 4%wt or less.
• alkoxylated alcohols alkoxylated phenols, alkyl-polyglucoside (APG) and amine oxides are very suitable for use in the compositions of the present invention e.g. in amounts of 0.1-5%wt.
• APG is preferred for its non-streaking and good foaming properties.
• Preferred levels of APG are such that the composition comprises 0.1-5%wt of APG, preferably 0.1-3 %wt, most preferably 0.2-2 %wt .
• Preferred APGs contain C8-C16 alkyl chains and it is preferred that more than 50%wt of the APG present in the compositions of the invention comprises C12- C14 alkyl APG and that the majority of the remaining APG contains C8-C16.
• the preferred degree of polymerization is
• Suitable materials include
• GLUCOPON 425 CS (ex HENKEL) .
• nonionics are alkoxylated alcohols, alkoxylated alkyl -phenols or amine oxides. Of these, alkoxylated alcohols are preferred as surfactants.
• 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 or 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. Ethoxylated aliphatic alcohols are particularly preferred.
• Particular examples include the condensation product of aliphatic alcohols having from 8 to 22 carbon atoms in either straight or branched chain configuration with ethylene oxide, such as a coconut alcohol ethylene oxide condensate having from 1 to 15 moles of ethylene oxide per mole of coconut alcohol; condensates of alkylphenols whose alkyl group contains from 6 to 12 carbon atoms with 1 to 25 moles of ethylene oxide per mole of alkylphenol .
• Particularly preferred nonionic surfactants include the condensation products of C8-C18 alcohols with 2-12 moles of ethylene oxide.
• the most preferred alkoxylated alcohol nonionic surfactants are ethoxylated alcohols having a chain length of C9-C11 and an EO value of at least 5 but less than 10.
• Particularly preferred nonionic surfactants include the condensation products of CIO alcohols with 5-8 moles of ethylene oxide.
• the preferred ethoxylated alcohols have a calculated HLB of 10-16. While mixtures of nonionic surfactants can be used it is preferred to use a single commercially available surfactant.
• Anionic surfactants are also suitable.
• anionic surfactants primary alkyl sulphates and/or alkyl ether sulphates are preferred components of compositions according to the invention.
• alkyl ether sulphates are materials of the general formula:
• Rl is linear or branched, C8-C18 alkyl and m is 1- 10.
• M is a sodium, potassium or ammonium counterion. More preferably the alkyl chain length of the AES falls in the range C8-C16. Preferably the AES has a C12-C13 average alkyl chain length. Preferably the AES alkyl chain is linear. Suitable materials include DOBANOL-23-3S (RTM, ex SHELL) and sodium laurylether sulphate .
• One or more solvents may be present in the compositions of the invention.
• the presence of solvents is preferred.
• compositions of the present invention comprise not more than 25%wt of glycol ether or alkanol solvents of the general formula:
• Rl and R2 are independently Cl-6 alkyl or H, but not both hydrogen, m and n are independently 0-5.
• E stands for an ethylene group and P for a propylene group
• the alcohol solvents are selected from the C1-C6 branched or straight chain alkanols, more preferably one or more of methanol, ethanol, propanols or butanols. Ethanol and iso-propanol are particularly preferred.
• the solvent comprises at least one glycol ether solvent selected from the group comprising diethylene glycol mono-n-butyl ether (available in the marketplace as Butyl
• Digol TM Digol TM
• ethylene glycol mono-n-butyl ether and propylene glycol mono-n-butyl ether and mixtures thereof.
• the total level of these solvents in the detergent compositions prepared according to the invention is preferably not more than 25% by weight, more preferably 20% or less, most preferably 10% or less.
• the compositions preferably contain at least l%wt of these solvents, more preferably at least 2% and most preferably at least 5%.
• antimicrobial agents can be used in the compositions of the present invention.
• the preferred antimicrobials are quaternary ammonium compounds and/or phenolic compounds.
• Typical levels of the antimicrobial agent in formulations range from 0.01 to 8%, with levels of 0.05-4wt%, particularly around 2% being preferred for normal compositions and up to two or four times that concentration being present in so called, 'concentrated' products. Although both the normal and concentrated products can be used neat it will be commonplace for these to be diluted by the user before use. For sprayable products, which are seldom diluted prior to use, the concentration of the antimicrobial agent will be in the range 0.05-0.5%wt.
• the ratio of the nonionic surfactant to the antimicrobial agent will preferably be in the range 50:1 to >1:1, more preferably 30:1 to >1:1 i.e. an excess of nonionic will be present relative to the antimicrobial .
• compositions comprise a preservative.
• a suitable preservative is PROXEL LV TM or FORMOLTM.
• compositions according to the invention can contain other minor ingredients which are not essential, but aid in their cleaning performance and in maintaining the physical and chemical stability of the product.
• the composition can contain detergent builders.
• a builder when employed, preferably will form from 0.1 to 25% by weight of the composition.
• Metal ion sequestrants including ethylenediamine- tetraacetates, aminopolyphosp onates (such as those in the
• DEQUEST range and phosphates and a wide variety of other polyfunctional organic acids and salts, can also optionally be employed. It is believed that the hygiene performance of a composition is improved by the presence of a metal ion sequesterant .
• Hydrotropes are useful optional components. It is believed that the use of hydrotropes enables the cloud point of the compositions to be raised without requiring the addition of anionic surfactants. The presence of both anionic surfactants and betaine at the same time is believed to be less desirable as these surfactants interact and form a complex which inhibits the synergistic hygiene activity of the amphoterics with the organic acid.
• the formations according to the invention are free of anionic surfactants when betaine is present, or contain low levels of anionic surfactants, i.e. less than 50% of the total weight of surfactant present and preferably less than 50% of the weight of the betaine in the product.
• Anionics are compatible with the solely alcohol ethoxylate based compositions of the present invention when the level is below 50%wt of the total surfactant present, but their level should be minimised in view of their interactions with the polymers.
• the level of anionic is below 30% of the total surfactant content of the composition and more preferably below 10% of the surfactant content. It is possible to make compositions which contain little or no anionic surfactant .
• Suitable hydrotropes include, alkali metal toluene sulphonates, urea, alkali metal xylene and cumene sulphonates, polyglycols, >20EO ethoxylated alcohols, short chain, preferably C2-C5 alcohols and glycols. Preferred amongst these hydrotropes are the sulphonates, particularly the cumene, xylene and toluene sulphonates.
• Typical levels of hydrotrope range from 0-5% for the sulphonates . Correspondingly higher levels of urea and alcohols are required. Hydrotropes are not always required for dilute, sprayable products, but may be required if lower EO or longer alkyl ethoxylates are used or the cloud point needs to be raised considerably. Typically, the cloud point of the final composition should preferably be in the range 45-50 °C. The cumene sulphonate is the most preferred hydrotrope.
• ethoxylated nonionic levels of around 7%wt on product levels of SCS will generally be in the range 0.6- 0.8wt% for ethoxylated nonionic levels of around 14%wt levels of SCS will generally be in the range 1.0-1.2wt%.
• compositions according to the invention can also contain, in addition to the ingredients already mentioned, various other optional ingredients such as, colourants, soil suspending agents, viscosity modifiers, detersive enzymes, gel-control agents, freeze-thaw stabilisers, and perfumes.
• various other optional ingredients such as, colourants, soil suspending agents, viscosity modifiers, detersive enzymes, gel-control agents, freeze-thaw stabilisers, and perfumes.
• Bleaching compounds generally serve no useful purpose in cleaning compositions of the present invention and will therefore normally be absent. Also, the presence of abrasives is difficultly reconcilable with the purposes of the present invention. Moreover such components and other water-insoluble solid inorganic compounds tend to leave difficultly removable traces on a surface. They will, therefore, normally be absent as well.
• compositions according to the present invention comprise e.g.:
• A a) l-25%wt of at least one glycol ether solvent, preferably di-ethylene glycol mono n-butyl ether, b) l-25%wt of at least one C1-C6 alkanol solvent, preferably ethanol, propanol or isopropanol, c) 0.1-5%wt of at least one nonionic surfactant, preferably alkylpolyglucoside, d) 0.05-l%wt of at least one UV-absorber, preferably a benzophenone derivative or phenylbenzimidazole sulphonic acid, e) water and minors.
• glycol ether solvent preferably di-ethylene glycol mono n-butyl ether
• C1-C6 alkanol solvent preferably ethanol, propanol or isopropanol
• c) 0.1-5%wt of at least one nonionic surfactant preferably alkylpolyglucoside
• B a) l-25%wt of at least one glycol ether solvent, preferably di-ethylene glycol mono n-butyl ether, b) l-25%wt of at least one C1-C6 alkanol solvent, preferably ethanol, propanol or isopropanol, c) 0.1-8%wt of at least one anionic surfactant, preferably.
• AES 0.05-l%wt of at least one UV-absorber, preferably a benzophenone derivative or benzimidazole sulphonic acid, e) water and minors.
• Typical window cleaners (such as Vidrex ) available in the Brazilian market contain ammonia and are of high pH, typically around 12-13. As will be described in more detail below, at these pH's the benzophenone UV absorbers are unstable in the commercially available products. For comparative purposes the present invention was also therefore compared below with a window cleaner available in
• the order of addition is important, since the UV absorber material is difficult to dissolve in water.
• a pre-mixture of the UV absorber in a part of the solvent is prepared and the remaining components are mixed before the UV absorber/solvent is added.
• the order of addition is water, Butyl Digol, ethanol, APG and then the pre-mixture of UV absorber/Butyl Digol at 10% concentration (0.5 g UV absorber in 5 g Butyl Digol) .
• Compatibility of the commercially available window cleaners and the compositions of the invention with the UV absorbing material from both BASF and H&R was tested as described below.
• the method used involved measurement of UV light absorbance with a spectrophotometer.
• a product without a UV absorbing material will not absorb light in the UV-B range (280-340 nm) , while a product with such material will.
• the light absorbance will be absent or inferior to a compatible combination of product and absorbing material. All products contained 0.05% UV absorber when present and were diluted to 0.5% concentration before measuring the absorbance.
• Table 2 demonstrates the results for the BASF and H&R UV absorbing material in freshly prepared samples. Formulations as given in Table 1 are identified as "LV
• the high pH (12) Vidrex product is identified as VR12 and the low pH
• Table 1 shows that if no UV absorber is present (le) there is no significant absorbance in the UV-B wavelength.
• Table 1 also show the absorbance of the UV-absorbing material in the low pH commercially available window cleaner (Vidrex pH 7) . With this sample precipitation occurred upon addition of the UV absorber, resulting in a white "cotton like” sediment and low absorbance.
• the performance of the benzophenone UV absorber was tested in a so-called weather-o-meter TM .
• This equipment simulates in an accelerated way the influence of the sun on discoloration of articles: 8 hours of experimental time being equivalent to around 1 month outside under typical conditions.
• Samples for this weather-o-meter were prepared using a coloured textile of inferior quality, i.e. material which was easy to discolour. All samples but one were then covered with a piece of normal glass, which subsequently was treated with various window cleaning products.
• the sample without glass (2.1) served as reference to determine the maximum discoloration possible.
• a second reference (2.2) determined the influence of the glass only by using a sample with untreated glass.
• "Mini-windows ' (2.5) and (2.4) were treated with product with and without absorber and with high concentrations of absorber (up to 10% as in 2.3) to quantify the influence of the absorber on the discoloration of the textile.
• the cleaning performance was measured with the Sheen apparatus. This equipment cleans a surface for a predetermined time, applying a constant force. Ten plates which had been treated with a fatty soil are cleaned with each product, the cleaning is visually assessed in each case (on a scale of 1 to 5) and a mean is statistically determined. The mean values for various products are then compared to see whether there is a statistically relevant difference (lower scores are better) .
• the window cleaner according to the present invention (3.1) has a superior cleaning performance against comparable window cleaning formulations and the UV absorber is shown to be effective in slowing down discoloration of textiles caused by means of light falling on the textiles after passing through the glass.

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• 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)
• Detergent Compositions (AREA)

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Applications Claiming Priority (2)

Publications (1)

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Family Applications (1)

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Citations (3)

• 1998
  • 1998-01-19 GB GBGB9801079.6A patent/GB9801079D0/en not_active Ceased
• 1999
  • 1999-01-08 AU AU26181/99A patent/AU2618199A/en not_active Abandoned
  • 1999-01-08 WO PCT/EP1999/000247 patent/WO1999036500A1/en active Application Filing
  • 1999-01-18 BR BR9900076-8A patent/BR9900076A/pt not_active Application Discontinuation
  • 1999-01-18 AR ARP990100174A patent/AR014415A1/es unknown
  • 1999-01-19 UY UY25361A patent/UY25361A1/es unknown

Patent Citations (3)

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