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
  • C11D3/2041—Dihydric alcohols
  • C11D3/2044—Dihydric 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
  • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
  • C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
  • C11D17/0013—Liquid compositions with insoluble particles in suspension

Definitions

• the present invention relates to stable, viscous abrasive-containing scouring compositions, which show excellent cleaning, ease-of-rinsing, and shine performance.
• compositions are substantially free of thickener.
• abrasive-containing scouring compositions in creamy form is well-known. Such compositions have been disclosed in, e.g. E.P.A. 0 126 545, and E.P.A. 0 216 416, US Patent 4.676.920, and Canadian Patent 1.194.381.
• thickener materials have certain drawbacks, in terms of ease-of-rinsing performance especially.
• the level of thickeners has been reduced, but still remains non-negligible.
• abrasive-containing creamy scouring compositions can be formulated which are substantially free of thickener.
• the same combination also provides very good cleaning ease-of-rinsing, and shine performance.
• the present invention relates to viscous creamy scouring compositions which contain an abrasive in suspension, are substantially free of thickener, and contain a combination of a surfactant, a solvent with a water-solubility under 5%, and an electrolyte.
• Water-soluble surfactants useful herein include synthetic anionic, nonionic, amphoteric and zwitterionic surfactants and mixtures thereof.
• anionic surfactants for use herein include C8 ⁇ 18 alkyl benzene sulfates and sulfonates, paraffin sulfonates, olefin sulfonates, and also ethoxylated species such as C8 ⁇ 18 alkyl polyethoxy sulfates, and sulphosuccinates.
• Preferred anionic surfactants include C12 ⁇ 14 alkyl benzene sulfonate, and C12 ⁇ 14 alkyl ethoxylated sulfate containing from 1 to 10 ethylene oxide units.
• a C12 ⁇ 14 ethoxylated anionic 3 times ethoxylated is sold by AKZO under the trade name ELFAN®.
• anionic detersive surfactants are most commonly used in the form of their sodium, potassium or triethanolammonium salts.
• Nonionic surfactants include alkoxylated (especially ethoxylated) alcohols, alkyl phenols, and amine oxides.
• Ethoxylated alcohol of the formula RO(CH2CH2O) n with R being a C12 ⁇ 15 alkyl chain and n being a number from 6 to 10, are preferred nonionic surfactants.
• the anionic surface-active agents herein are present at levels of from 0.3 to 8%, preferably 3% to 8%.
• nonionic surfactants are used at levels of from 0.1% to 6% by weight of the composition.
• the total level of surfactant is from 2% to 10% by weight of the composition.
• the abrasive types employed herein are selected from water-insoluble, non-gritty materials well-known in the literature for their relatively mild abrasive properties. It is highly preferred that the abrasive used herein not be undesirably "scratchy". Abrasive materials having a Mohs hardness in the range of about 7, or below, are typically used; abrasives having a Mohs hardness of 3, or below, can be used to avoid scratches on aluminium or stainless steel finishes.
• Suitable abrasives herein include inorganic materials, especially such materials as calcium carbonate and diatomaceous earth, as well as materials such as Fuller's earth, magnesium carbonate, China clay, attapulgite, calcium hydroxyapatite, calcium orthophosphate, dolomite and the like.
• the aforesaid inorganic materials can be qualified as "strong abrasives”.
• Synthetic organic abrasives such as urea-formaldehyde, methyl methacrylate melamine-formaldehyde resins, polyethylene spheres and polyvinylchloride can be advantageously used in order to avoid scratching on certain surfaces, especially plastic surfaces. When such "soft abrasives” are used, strong builders can be incorporated in the composition.
• abrasives typically have a particle size range of 10-1000 microns and are used at concentrations of 5% to 50% in the compositions.
• Organic solvents for use herein showed have a water-solubility of from 0 to 5% at 25°C in pure, deionised water, preferably less than 1% and most preferably less than 0.5%.
• Suitable solvents include hexyl carbitol, 1(2-n-butoxy-1-methylethoxy) propane-2-ol (butoxypropoxypropanol), and 2-ethyl-1,3-hexanediol.
• Carbitol® solvents are compounds of the 2-(2-alkoxyethoxy)ethanol class.
• water-soluble solvents can be used in minor quantities, such as water-soluble carbitol® solvents including ethyl, propyl or butyl carbitol, and water-soluble cellosolve® solvents.
• the organic solvent is present at levels of from 1% to 10%; preferably from 2% to 6%.
• the electrolytes used in the compositions are selected from the group consisting of alkali metal sulfates, alkali metal carbonates or bicarbonates, alkali metal halides and citrates as well as alkali metal nitrates and mixtures thereof.
• the electrolytes or their mixture may vary from 0.5% to 8% basis formula weight with the preferred range of about 0.5% to 3.5%, with the alkali metal bicarbonates and carbonates and mixtures thereof being the preferred forms.
• the present composition can contain additional components, which can be highly desirable.
• compositions contain a detergent builder and/or metal ion sequestrant.
• detergent builders include the nitrilotriacetates, (NTA), ethylene diamine tetraacetate (EDTA), amino-polyphosphonates (DEQUEST), water-soluble phosphates such as tri-polyphosphonate and sodium ortho- and pyro-phosphates, silicates, and mixtures thereof. These builders are preferably not used in combination with strong abrasives like calcium carbonate, but are recommended in combination with soft organic abrasives like polyvinylchloride.
• Metal ion sequestrants of lower metal sequestration constant can advantageously be used in combination with strong or soft abrasives.
• Those metal ion sequestrants include polycarboxylates, citrates.
• soaps in the compositions of the invention. Soaps prepared from coconut oil fatty acids are preferred.
• Soaps can be used in amounts ranging from 0.2% to 3% by weight of the composition.
• compositions herein is represented by an amine oxide having the formula wherein R is an alkyl or alkenylgroup having 10 to 22 carbon atoms, the R1's which are identical or different are selected from C1 ⁇ 14 alkyl, ethylene oxide and propylene oxide, n is an integer from 1 to 6, m is an integer from 0 to 6, p is 0 or 1, x, y, and z are each 1 for alkylsubstituents, and integers in the range of from 1 to 10 for ethylene oxide or propylene oxide substituents such that the sum of (x+y+z) is not greater than 25.
• R is an alkyl or alkenylgroup having 10 to 22 carbon atoms
• the R1's which are identical or different are selected from C1 ⁇ 14 alkyl, ethylene oxide and propylene oxide
• n is an integer from 1 to 6
• m is an integer from 0 to 6
• p is 0 or 1
• x, y, and z are
• This amine oxide component is used in a level from 0.1% to 1.5%, preferably from 0.25% to 0.75%.
• Suitable species of the amine oxide component for use herein correspond to the general formula above wherein the individual substituents can be varied as follows : R : tallow C16 ⁇ 18 alkyl, coconut C12 ⁇ 14 alkyl; lauryl; palmityl; stearyl; oleyl. R1 : ethylene oxide; propylene oxide; methyl; ethyl. n : 2, 3, 4. m : 0, 1, or 2. x, y, and z are each 1, 2, 3 or 4 and their sum is from 2 to 18.
• Preferred amine oxides for use herein are defined by the following substituents : R : C12 ⁇ 18 alkyl.
• R1 ethylene oxide; methyl. m : 0 or 1; n : 3 (assuming m is different from 0).
• x, y, z are each at least 1 and their sum is in the range from 2 to 12, for example 2, 3, 7 and 12.
• One particularly preferred class of amine oxide species is represented by mono-amine oxides having the following substituents. m : 0. R1 : methyl; ethyl; ethylene oxide. R : coconut C12 ⁇ 14 alkyl. x and y are both 1.
• a specific example of this preferred class of mono-amine oxides is : N ⁇ C12 ⁇ 14 coconut alkyl N,N-dimethyl amine oxide.
• Thickeners should preferably not be included in the compositions of the invention. If they are, the level will be kept under 0.2%. Common thickeners such as the polyacrylates, xanthan gums, carboxymethyl celluloses, swellable smectite clays, and the like, can be used herein at these levels.
• Optional compounds are also represented by ingredients typically used in commercial products to provide aesthetic or additional product performance benefits.
• Typical ingredients include pH regulants, perfumes, dyes, optical brighteners, soil suspending agents, detersive enzymes, gel-control agents, freeze-thaw stabilizers, bactericides, preservatives, hydrotrope and the like.
• compositions herein typically contain up to about 90% water as a carrier.
• water-level can vary in the range from e.g. 50% to 80%.
• Water-alcohol e.g., ethanol, isopropanol, butanol, etc.
• mixtures can also be used.
• compositions herein are preferably formulated in the alkaline pH ranges, generally in the range of pH 8-11, preferably about 10-10.8.
• Caustics such as sodium hydroxide and sodium bi-carbonate can be used to adjust and buffer the pH as desired.

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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)
• Cosmetics (AREA)

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Citations (3)

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• 1988
  • 1988-01-30 GB GB888802086A patent/GB8802086D0/en active Pending
• 1989
  • 1989-01-24 EP EP89200143A patent/EP0329209A3/fr not_active Withdrawn
  • 1989-01-27 IE IE27789A patent/IE890277L/xx unknown
  • 1989-01-27 NZ NZ22776989A patent/NZ227769A/en unknown
  • 1989-01-27 AU AU28909/89A patent/AU629809B2/en not_active Ceased
  • 1989-01-30 BR BR898900382A patent/BR8900382A/pt not_active Application Discontinuation
  • 1989-01-30 MX MX1470889A patent/MX169821B/es unknown
  • 1989-01-30 CA CA 589524 patent/CA1332908C/fr not_active Expired - Fee Related
  • 1989-01-30 JP JP2068789A patent/JPH02147695A/ja active Pending

Patent Citations (3)

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