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
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/02—Anionic compounds
  • C11D1/37—Mixtures of compounds all of which are anionic
• • 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
  • C11D1/04—Carboxylic acids or salts thereof
  • C11D1/06—Ether- or thioether carboxylic 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
  • 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
  • C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
• • 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
  • C11D1/22—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aromatic 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
  • C11D1/02—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
  • C11D1/72—Ethers of polyoxyalkylene glycols

Definitions

• the present invention relates to liquid detergent compositions and in particular to aqueous built liquid detergent compositions comprising a detergent activebased suspending system capable of suspending undissolved material.
• Aqueous built liquid detergent compositions are well known and a vast amount of formulations have been described in the prior art.
• Such compositions comprise one or more detergent-active compounds and one or more builder salts in an aqueous medium which is capable of suspending undissolved builder and/or adjuvant materials.
• compositions of the above type which have reduced sensitivity to electrolyte material and which tolerate larger quantities of such material without giving rise to unacceptable viscosities.
• the present invention provides an aqueous built liquid detergent composition capable of suspending particulate material, which comprises a synthetic anionic detergent-active material and electrolyte salts, characterized in that it comprises from 0.5-10% by weight of a fatty alcohol polyalkylene oxide carboxylate salt or a mixture of such salts according to the formula :
• alkyl . polyalkylene oxide carboxylate salt of the present invention is characterized by the formula :
• the number of ethylene and/or propylene oxide units (x) may range from 1-16, in particular from 1-12.
• the alkylene oxide portion comprises from 2-5 ethylene oxide units.
• M is a cation and is selected from the group of hydrogen, sodium, potassium, ammonium, mono-, di- and triethanol ammonium, the alkali metal cations being preferred.
• the fatty alcohol polyalkylene oxide carboxylate salt or a mixture of such salts is included in an amount of from 0.5-10%, optionally partly replacing the synthetic anionic detergent-active material.
• the preferred amount depends on the rheology of the composition without the carboxylate salt compound, and the rheology which is aimed at In general the best results are obtained when the fatty alcohol polyalkylene oxide carboxylate salt is included in an amount of from 2-5% by weight, replacing about an equivalent amount of synthetic anionic detergent active material.
• the invention is particularly applicable to aqueous liquid built compositions on the basis of synthetic anionic detergent-active material and electrolyte salts.
• Suitable synthetic anionic detergent-active materials comprise the well-known anionic detergents of the alkylaryl sulphonate type, the alkyl- and alkylether sulphate type, the alkane- and alkene sulphonate type, etc. Numerous other examples can be found in Schwartz, Perry “Detergents and Surface-Active Agents", Vol. II, 1958.
• alkylaryl sulphonates are used, in which the alkyl chain contains 10-18 carbon atoms, such as n-dodecyl benzene sulphonate, tetrapropylene benzene sulphonate, n-pentadecyl benzene sulphonate, and linear C,,-C,, alkylbenzene sulphonate in which the aliphatic group is obtained from cracked wax polymers, all in the form of their sodium or potassium salts.
• the alkyl chain contains 10-18 carbon atoms, such as n-dodecyl benzene sulphonate, tetrapropylene benzene sulphonate, n-pentadecyl benzene sulphonate, and linear C,,-C, alkylbenzene sulphonate in which the aliphatic group is obtained from cracked wax polymers, all in the form of their sodium or potassium salts.
• the total amount of synthetic anionic detergent active materials lies within the range of 1-15% by weight, preferably 6-12% by weight of the total composition.
• Nonionic detergents usually consist of a hydrophobic moiety which has been reacted with an aI- kylene oxide.
• Suitable examples are primary or secondary, straight or branched chain C 1 -C 15 alcohols condensed with 1-30 moles of alkylene oxide; mono- or dialkyl phenols with an alkyl group of 9-18 carbon atoms condensed with 1-30 moles of alkylene oxide; C 10 -C 11 fatty acid mono-or dial- kylol amides condensed with 1-30 moles of alkylene oxide; block copolymers of different or identical alkylene oxides and so on.
• the alkylene oxide is ethylene oxide, but propylene oxide or a mixture of ethylene oxide and propylene oxide can also be used. Further suitable examples can be found in the text book of M.Schick "Nonionic Surfactants".
• the amount of nonionic detergent-active material which can be included in the composition ranges up to 5%, but such amounts should be less than the amount of synthetic anionic detergent active material.
• the electrolytes which are used in the present invention are those which cause partial salting out of the detergent active material.
• the composition may contain from 1 -60% by weight, preferably 3-50% by weight and particularly preferably 5-30% by weight of the electrolyte.
• Typical examples are builder salts, such as the alkali metal ortho- and pyrophosphates, the alkali metal ammonium tripolyphosphates, such as sodium tripolyphosphate, the alkali metal citrates, alkali metal salts of nitrilo triacetate and alkali metal salts of carboxy methyloxy succinate.
• builder salts such as the alkali metal ortho- and pyrophosphates, the alkali metal ammonium tripolyphosphates, such as sodium tripolyphosphate, the alkali metal citrates, alkali metal salts of nitrilo triacetate and alkali metal salts of carboxy methyloxy succinate.
• Suitable examples of electrolytes are also buffering agents, such as the alkanol amines, in particular triethanol amine, alkali metal carbonates, alkali metal borates, alkali metal silicates, and so on.
• compositions of the invention may further contain all ingredients usually encountered in such products, such as alkali metal sulphites, for improving detergency; enzymes, either alone or in combination with enzyme stabilizers, such as polyalcohols or alkanol amines with borax; fluorescers, further builders, such as zeolites; abrasives, such as calcite; soil-suspending agents; anti-redeposition agents; hydrotropes, corrosion inhibitors; foam boosters or depressors; opacifying agents; perfumes; colouring agents; bleaching agents, optionally in combination with bleach precursors; fluorescers.
• enzymes either alone or in combination with enzyme stabilizers, such as polyalcohols or alkanol amines with borax
• fluorescers further builders, such as zeolites
• abrasives such as calcite
• soil-suspending agents such as calcite
• soil-suspending agents such as calcite
• anti-redeposition agents such as
• the products of the present invention can be prepared using conventional techniques. In this respect it has been found that it is advantageous to shear the product at the end of the production process to its maximum stable viscosity, e.g. by post-stirring or passing the product through a desintegrator or similar high-shear exerting equipment Further shear exerted on the product thus treated during pumping and bottling does not affect the viscosity of the product.
• compositions were prepared according to the formulations listed in Table 1, having good physical stability and clearly showing the increased tolerance to high electrolyte levels.

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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)
• Detergent Compositions (AREA)

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Publications (3)

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Citations (2)

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• 1984
  • 1984-10-12 GB GB848425785A patent/GB8425785D0/en active Pending
• 1985
  • 1985-09-25 EP EP85201533A patent/EP0178006B1/de not_active Expired - Lifetime
  • 1985-09-25 DE DE8585201533T patent/DE3579658D1/de not_active Expired - Fee Related
  • 1985-09-25 AT AT85201533T patent/ATE56470T1/de active
  • 1985-10-04 CA CA000492347A patent/CA1232817A/en not_active Expired
  • 1985-10-07 AU AU48344/85A patent/AU579191B2/en not_active Ceased
  • 1985-10-09 ZA ZA857798A patent/ZA857798B/xx unknown
  • 1985-10-10 BR BR8505035A patent/BR8505035A/pt not_active IP Right Cessation
  • 1985-10-11 JP JP60226672A patent/JPS6197395A/ja active Granted

Patent Citations (2)

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