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
  • C11D3/2075—Carboxylic acids-salts thereof
  • C11D3/2079—Monocarboxylic acids-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
  • 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
  • C11D1/123—Sulfonic acids or sulfuric acid esters; Salts thereof derived from carboxylic acids, e.g. sulfosuccinates
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10S516/00—Colloid systems and wetting agents; subcombinations thereof; processes of
  • Y10S516/905—Agent composition per se for colloid system making or stabilizing, e.g. foaming, emulsifying, dispersing, or gelling
  • Y10S516/909—The agent contains organic compound containing sulfoxy*

Definitions

• This invention relates to surface-active compositions, and more particularly to compositions containing surface-active dialkyl sulfosuccinates in which the alkyl groups contain from 5-10 car-- bon atoms prepared in the form of dry, watersoluble powders by admixture with a hardening agent.
• the diesters of suliosuccinic acid with alcohols of 5-10 carbon atoms are well-known wetting and emulsifying agents, their preparation being described in U. S. Patent No. 2,028,091.
• the di-(2-ethyl-hexy1) sulfosuccinate in the form of its sodium or other alkali metal salt, possesses the highest wetting power as measured by the standard Draves test.
• the diamyl sodium sulfosuccinate and the dihexyl sodium sulfosuccinate are somewhat more easily soluble in water than is the dioctyl compound, and all three are sold commercially in large quantities.
• the dinonyl and didecyl sodium sulfosuccinates are at present used principally as emulsifying agents and detergents, although they are also good wetting agents.
• these wetting agents have been sold commercially either as solutions in water or aqueous organic solvents or in admixture with inert organic or inorganic diluents or in pure 100% form.
• the solutions are used where the surfaceactive agent is desired in a quickly water-soluble form, but require special containers of glass, stainless steel or aluminum as well as the shipment and storage of substantial quantities of solvent.
• the dry powders usually contain about -20% of the dialkyl sulfosuccinate in admixture with 80-90% of an inert diluent such as cerelose or sodium sulfate. These dry mixtures are watersoluble and free-flowing, but also necessitate the shipment and storage of large quantities of diluent material.
• dialkyl sulfosuccinates of aliphatic alcohols of 23-10 carbon atoms are solid waxeswhich dissolve very slowly in water.
• pure sodium dioctyl sulfosuccinate must be allowed to stand in water at room temperature for 24 hours to prepare a 10% solution.
• the diamyl and dihexyl esters dissolve in water more rapidly than the dioctyl ester, but are considerably more hygroscopic.
• alkali metal salts of benzoic acid such as sodium, potassium or ammonium benzoates
• benzoic acid such as sodium, potassium or ammonium benzoates
• the alkali metal benzoates are effective for this purpose even when used in relatively small amounts; thus, for example, the addition of 5-10 parts by weight of sodium benzoate to -95 parts of sodium dioctyl sulfosuccinate will change the sulfosuccinate from its normal waxy consistency into a nonsticky solid that can be dissolved in water in less than 5 minutes.
• compositions of my invention therefore contain, as essential ingredients, a dialkyl ester of sulfosuccinic acid in which the alkyl radicals contain 5-10 carbon atoms together with an alkali metal salt of benzoic acid.
• the compositions may also contain other ingredients if desired such, for example, as sodium phosphate, soap, other detergents, inorganic fillers and the like.
• the alkali metal benzoate should be present in amounts of at least 5%, based on the weight of the dialkyl sulfosuccinate; but larger quantities may be and usually are employed.
• the amount of alkali metal benzoate will vary from about 5% to about 50%, based on the weight of the dialkyl sulfosuccinate, although amounts up to may be employed if desired. Quantities of 15-60% are frequently advantageous, for the increased amounts of alkali metal benzoate causes even more rapid solution of the dialkyl sulfosuccinate in water, and produces a quickly dispersible composition.
• compositions of my invention are preferably prepared by mixing the dialkyl sulfosuccinate with the alkali metal benzoate in the presence of an aqueous solvent which may be water or a mixture of water and ethanol, propanol, butanol, etc., followed by evaporating the solution to dryness. Drying may be effected in a tray drier well-suited for use in wetting out textiles, for the preparation of photographic film-developing powders, and for a wide variety of other uses requiring a water-soluble surface-active agent of high wetting power.
• an aqueous solvent which may be water or a mixture of water and ethanol, propanol, butanol, etc.
• Aiwater' sohibi composition consisting essentially ot a dry mixture of 50% to 95% by weight of a dioctyl' sulfosuccinate and 50% to 5% by ;.weig'h't of an alkali metal benzoate.
• a water-soluble composition consisting essentially of ad-ry mixture of 50% to 95% by weight of a dialkyl sulfosuccinate in which the alkyl groups contain from 5 to 10 carbon atoms and to 5% by weight of sodium benzoate.

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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)

Priority Applications (6)

Applications Claiming Priority (1)

Publications (1)

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ID=24699612

Family Applications (1)

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Cited By (8)

Families Citing this family (1)

Citations (2)

• 0
  • BE BE473507D patent/BE473507A/xx unknown
  • NL NL62992D patent/NL62992C/xx active
• 1946
  • 1946-05-27 US US672692A patent/US2441341A/en not_active Expired - Lifetime
• 1947
  • 1947-04-15 GB GB9972/47A patent/GB632321A/en not_active Expired
  • 1947-05-22 FR FR947150D patent/FR947150A/fr not_active Expired
  • 1947-05-27 CH CH265496D patent/CH265496A/fr unknown

Patent Citations (2)

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