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
  • C11D1/66—Non-ionic compounds
  • C11D1/83—Mixtures of non-ionic with anionic compounds
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
  • C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
  • C09K23/017—Mixtures of 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
  • C11D1/14—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
  • C11D1/66—Non-ionic compounds
  • C11D1/662—Carbohydrates or derivatives

Definitions

• the present invention relates to concentrated surfactant mixtures of alkyl glycosides, alkyl sulfates and alkanesulfonates as stable, flowable and pumpable liquids and their use as premixes (compounds) for the production of liquid washing and cleaning agents.
• alkyl glycosides with long-chain alkyl groups belong to the nonionic surfactants.
• the person skilled in the art also knows, as described, for example, in AM Schwartz, JW Perry, Surface Active Agents, Vol. 1, Interscience Publishers, 1949, page 372, that surfactant mixtures generally have synergistic effects and often have better cleaning properties than would result from the sum of the values of the individual components.
• Detergents which contain alkyl glycosides in combination with at least one conventional anionic surfactant are described in European patent application EP 070074.
• Detergents that contain alkyl glycosides and anionic surfactants are also known from European patent application EP 092877.
• liquid detergents are known from European patent application EP 105556, which contain alkyl glycosides, certain other nonionic surfactants and anionic surfactants. From the international patent application WO 86/02943 alkylglycoside-containing liquid detergents are known which contain conventional anionic surfactants.
• the individual components are generally used as flowable solutions which each contain a substance or which, as premixes, so-called compounds, consist of several substances which are customary in the finished agents.
• the components provided for the mixture into the finished agent should have the highest possible active substance content and at the same time be easy to handle, that is to say they should be as flowable and as possible be easy to pump and have the highest possible storage stability.
• Alkyl glycosides are usually obtained as highly viscous pastes.
• the object of the present invention was to develop a storage-stable, liquid surfactant mixture from an alkyl glycoside paste.
• This object is achieved by an aqueous mixture of certain amounts of alkyl glycoside, alkyl sulfate and secondary alkane sulfonate.
• the compounds according to the invention are aqueous mixtures which consist essentially of an alkyl glycoside and 2 different synthetic anionic surfactants, an alkyl sulfate and an alkane sulfonate, the alkyl glycoside having the formula I
• R1 is an alkyl radical having 8 to 22 carbon atoms
• G is a glycose unit and n is a number between 1 and 10
• the alkyl sulfate has the formula II
• R2 is an alkyl radical with 8 to 22 C atoms and X is a cation selected from the group comprising hydrogen, alkali and ammonium ions, and the alkanesulfonate has the formula III,
• R3 and R ⁇ independently of one another are alkyl radicals having 1 to 18 carbon atoms, with the proviso that the total number of carbon atoms in the alkanesulfonate is between 10 and 20, and Y is a cation selected from the group comprising hydrogen, alkali and ammonium ions, and the compounds being 35 to 55% by weight of water, 10 to 30% by weight, preferably 17 to 25% by weight of alkyl glycoside, 10 to 20% by weight, preferably 12 to 18% by weight % Contain alkyl sulfate and 1 to 15 wt .-%, preferably 3 to 10 wt .-% alkanesulfonate.
• alkyl glycosides suitable for the surfactant mixtures according to the invention and their preparation are described, for example, in European Patent Applications EP 92355, EP 301298, EP 357969 and EP 362671 or in the US Pat. No. 3547828.
• the glycoside components ((G) n in formula I) of such alkyl glycosides are oligomers or polymers from naturally occurring aldose or ketose monomers, in particular glucose, mannose, fructose, galactose, talose, gulose, old rose , Allose, Idose, Ribose, Arabinose, Xylose and Lyxose and mixtures thereof.
• the oligomers consisting of such glycosidically linked monomers are characterized not only by the type of sugar they contain, but also by their number, the so-called degree of oligomerization.
• the degree of oligomerization (n in formula I) generally assumes fractional numerical values as the quantity to be determined analytically; it is between 1 and 10, for the alkyl glycosides preferably used below 1.5, in particular between 1.2 and 1.4.
• the preferred monomer building block is glucose because of its good availability.
• the alkyl part (R in formula I) of the alkyl glycosides contained in the surfactant mixtures according to the invention preferably also originates from easily accessible derivatives of renewable raw materials, in particular from fatty alcohols, although their branched chain isomers, in particular so-called oxo alcohols, can also be used to prepare alkyl glycosides which can be used .
• the primary alcohols with linear octyl, decyl, dodecyl, tetradecyl, hexadecyl or octadecyl radicals and mixtures thereof are particularly useful.
• Particularly suitable alkyl glycosides contain a coconut fatty alkyl radical, that is to say mixtures with essentially R - dodecyl and R 1 »tetradecyl.
• the alkyl glycosides can contain small amounts, for example 1 to 2%, of unconverted long-chain alcohol, which does not have a disadvantageous effect on the properties of the surfactant mixtures produced therewith.
• the neutralized sulfation products of the above come as alkyl sulfates suitable for use in the surfactant mixtures according to the invention alcohols in question.
• the derivatives of fatty alcohols with 8 to 22 carbon atoms, in particular with 12 to 16 carbon atoms, are also particularly suitable in this case.
• the alkyl sulfates can be prepared in a known manner by reaction of the corresponding alcohol component with a customary sulfating reagent, in particular sulfur trioxide or chlorosulfonic acid, and subsequent neutralization, preferably with alkali, ammonium or alkyl or hydroxyalkyl-substituted ammonium bases the.
• the secondary alkanesulfonates used according to the invention are neutralized substances which are obtained by sulfoxidation of hydrocarbons which preferably contain 10 to 20 carbon atoms. This generally results in products with a statistical distribution of the sulfonic acid substituents, which can be separated * in a known manner.
• the alkanesulfonates having 12 to 17 carbon atoms have proven to be particularly suitable for the mixture according to the invention.
• Suitable cations are in particular those from the group of alkali ions, ammonium or alkyl- or hydroxyalkyl-substituted ammonium ions.
• the preparation of the surfactant mixtures according to the invention presents no difficulties. It can be done easily by simply mixing the three individual components, which can be present as such or preferably in aqueous solution.
• the mixtures according to the invention are notable for their low viscosities, their easy flowability and pumpability and their high storage stability.
• the viscosity of the compounds is generally between 20,000 Pa.s and 50,000 Pa.s.
• the compounds of the invention are ⁇ long time, at least 30 days, at temperatures of about 1 ° C to about 45 C storage stable.
• the coapounds according to the invention can be used, directly or after dilution with water, for technical applications, for example as flotation aids or drilling fluids. However, they are preferably used as premixes for the production of liquid washing and cleaning agents. uses, which include in particular mild detergents, detergents and dishwashing detergents, but also shampoos. Such agents can be produced in a simple manner by diluting the compounds with water to the desired active substance concentration.
• builder substances such as zeolites and layered silicates, corrosion inhibitors, bleaching agents, bleach activators, optical brighteners, enzymes, graying inhibitors, antimicrobial active ingredients, water-miscible solvents, abrasives, foam stabilizers, preservatives, pH agents Regulators, dyes and fragrances as well as additional surfactants are possible.
• builder substances such as zeolites and layered silicates, corrosion inhibitors, bleaching agents, bleach activators, optical brighteners, enzymes, graying inhibitors, antimicrobial active ingredients, water-miscible solvents, abrasives, foam stabilizers, preservatives, pH agents Regulators, dyes and fragrances as well as additional surfactants are possible.
• the surfactant mixtures M1 to M3 according to the invention characterized below in Table 1 by their composition and the compositions VI to V5 used in comparative experiments were prepared.
• the surfactant mixtures M1 to M3 according to the invention had pH values (10% by weight aqueous solution) of 9.6.
• Viscosity (20 ° C) 25000 40000 25000 28850 55540 [mPa.s]
• Mixture V3 was a solid, viscous gel both at room temperature and at 4 ° C., the viscosity of which could not be determined.
• the mixtures V4 and V5 were inhomogeneous, just flowable pastes at the temperatures indicated.
• solutions Ml to M3 and VI to V5 were prepared, each containing 0.15 gram of active substance per liter of solution.
• the cleaning performance of the compounds according to the invention was at least the same as that of the comparative mixtures in all cases.

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• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Organic Chemistry (AREA)
• Life Sciences & Earth Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Wood Science & Technology (AREA)
• Materials Engineering (AREA)
• Detergent Compositions (AREA)

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• 1990
  • 1990-06-05 DE DE4017922A patent/DE4017922A1/de not_active Withdrawn
• 1991
  • 1991-05-27 CA CA002084655A patent/CA2084655A1/en not_active Abandoned
  • 1991-05-27 JP JP3509270A patent/JPH05509111A/ja active Pending
  • 1991-05-27 KR KR1019920703109A patent/KR930700632A/ko not_active Application Discontinuation
  • 1991-05-27 EP EP91909996A patent/EP0532549A1/de not_active Ceased
  • 1991-05-27 US US07/952,507 patent/US5258142A/en not_active Expired - Fee Related
  • 1991-05-27 WO PCT/EP1991/000973 patent/WO1991018963A1/de not_active Application Discontinuation
  • 1991-06-03 CN CN91103682A patent/CN1057013A/zh active Pending

Non-Patent Citations (1)

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