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
  • C11D10/00—Compositions of detergents, not provided for by one single preceding group
  • C11D10/04—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap
  • C11D10/042—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap based on anionic surface-active compounds and soap
• • 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
  • C11D1/38—Cationic compounds
  • C11D1/52—Carboxylic amides, alkylolamides or imides or their condensation products with alkylene oxides
  • C11D1/523—Carboxylic alkylolamides, or dialkylolamides, or hydroxycarboxylic amides (R1-CO-NR2R3), where R1, R2 or R3 contain one hydroxy group per alkyl group
• • 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
  • C11D10/00—Compositions of detergents, not provided for by one single preceding group
  • C11D10/04—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap
  • C11D10/047—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap based on cationic surface-active compounds and soap
• • 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
  • C11D1/38—Cationic compounds
  • C11D1/52—Carboxylic amides, alkylolamides or imides or their condensation products with alkylene oxides
  • C11D1/521—Carboxylic amides (R1-CO-NR2R3), where R1, R2 and R3 are alkyl or alkenyl groups

Definitions

• a washing powder containing a 3:1 to 1:3, by weight, mixture of soap and non-soap detergent is obtained with surprisingly good and stable lather if the non-soap detergent is a water-soluble C to C substantially straightchain aliphatic alpha-sulphonate and if there is included in the composition from 136% to 6%, by weight of the powder, of an unsubstituted amide of a C to C substantially straight-chain aliphatic acid or, when the alphasulphonate is an alkane sulphonate, the unsubstituted amide or a monoethanolamide of the C to C substantially staight-chain aliphatic acid.
• This invention relates to washing powders.
• a washing powder containing soap and non-soap detergent in which the weight ratio of soap to non-soap detergent is between 3:1 and 1:3.
• a washing powder containing such a blend of soap and non-soap detergent possesses to some extent the good features of both a non-soap detergent powder and a soap powder.
• a non-soap detergent powder like a non-soap detergent powder, it gives quick lather and little trouble with washing-machine heaters and, like a soap powder, it gives close, creamy lather and easy rinsing.
• the lather formed from such a blend although it is creamy and quickly formed, has a short half-life even when a lather stabilizer is added to the powder.
• a washing powder of the above type has surprisingly good and stable lather when the powder contains soap, a C to C substantially straight-chain aliphatic alpha-sulphonate and, by weight of the powder, from 1 /2% to 6%, preferably 3%, of an unsubstituted amide of a C to C fatty acid.
• the invention provides a washing powder containing soap and a C, to C substantially straight-chain aliphatic alpha-sulphonate, in a weight ratio of 3:1 to 1:3, and, by weight of the powder, between 116% and 6% of an unsubstituted amide of a C to C substantially straightchain aliphatic acid.
• PKA and CNA are typical examples of unsubstituted amides of C to C fatty acids.
• PKA is the mixture of amides derived from palm kernel oil and CNA the mixture of amides derived from coconut oil.
• a preferred alpha-sulphonate is an alkene sulphonate.
• a particularly preferred alpha-sulphonate is obtained when the sulphonation mixture obtained by sulphonating C to C alpha-olefins is completely or almost completely hydrolysed and neutralised.
• Preferred sulphonating agents are sulphur trioxide/air or sulphur trioxide adducts such as sulphur trioxide-dioxane.
• the full constitution of the sulphonation mixture is not known but it is believed to contain beta-, gammaand delta-sultones as well as alkene sulphonates and hydroxysulphonates.
• the sulpho- 3,533,954 Patented Oct. 13., 1970 nation mixture is preferably hydrolysed and neutralised with sodium hydroxide solution to give the sodium sulphonates but water-soluble salts with other cations, such as ammonium, substituted ammonium and potassium can be used.
• the product obtained by hydrolysing and neutralising the sulphonation mixture obtained by sulphonating alphaolefins contains hydroxyalkane sulphonates, disulphonates and other compounds as well as alkene sulphonates.
• a typical product consists essentially of from 40% to of alkene sulphonates, the double bond being predominantly in the 2,3; 3,4; and 4,5 positions, 15% to 40% of hydroxy alkane sulphonates and from 3% to 25% of disulphonates. All these compounds have an alpha-sulphonate group present in their structure.
• alpha-sulphonate is an alkane sulphonate of the general formula RSO X where R is a primary, straight chain, C to C saturated alkyl group and X is a cation such as an ammonium, sodium or p0- tassium ion.
• alpha-sulphonate is an alkane sulphonate
• a monoethanolamide of a C to C fatty acid can be used instead of an unsubstituted amide as lather stabiliser.
• the total amount of soap and alpha-sulphonate will be between 10 and 40%, by weight of the powder.
• water-soluble is meant that the salt of the C to C substantially straight-chain aliphatic acid and the salt of the alpha-sulphonate are, at the usual user concentration of a washing powder, substantially soluble in the washing solution.
• the usual user concentration of a washing powder is about 0.4% by weight.
• the invention is particularly applicable to built detergent compositions.
• the amount of detergent active, soap and non-soap detergent will normally be between 10 and 40% and the amount of builder salt, such as sodium tripolyphosphate, will normally be between 20 and 50% by weight of the composition.
• soap is meant a water-soluble salt of a C to C substantially straight-chain aliphatic acid.
• the salt may b; an alkali-metal, ammonium or substituted ammonium s t.
• compositions according to the invention have long half-lives compared to other soap/non-soap detergent compositions. There is therefore a reduced tendency for overdosing and consequent waste to occur.
• EXAMPLE I This example illustrates the superior lathering performance of the compositions of the invention in comparison with other soap/non-soap detergent based washing powders.
• a number of drum dried washing powders containing soap and a non-soap detergent were prepared with and without a lather stabilizer. These powders were screened for lather stability in hard water. 0.4% of each powder 3 was stirred at 75 r.p.m. into 24 H. water at 60 C. After /2 minute the stirrers were stopped and the lather height measured in M ins. initially and after /z, i, 2, 3, 4 and 5 mins. The half-lives in minutes of the lather produced are given in Table I and Table II below.
• the lather stabilizers employed were CEA, PKA, CNA, a soap being an ⁇ 11km metal or ammonium W310iand LDAO.
• LDAO is lauryl dimethylamine oxide
• CEA 25 soluble salt of a mixture substantially straight-chain is the monoethanolamide of the acids derived from cocollllsllbsllmled allphallc C8"C22 CaTbQXYhC 861d; nut n (b) a non-soap detergent being an alkali metal or am- TABLE I Halt-lives oi lather (in mins.)
• random means that the functional group is randomly distributed over all the positions in the hydrocarbon chain.
• Non-soap detergent 10 Sodium tripolyphosphate 32 Sodium sulphate 11
• Anhydrous alkaline silicate 10 Sodium toluene sulphonate 2 Sodium carboxyn et h l cellulose .I" Water PKA or CEA The powders were tested as described in Example I.
• Non-soap Detergent stabilizer PICA CEA Na dodecyl-l-sulphonatar 0 6 2 Na tetradeeyl-lsulphonate.-. 2% 3 Na octadecyl-l-sulphonate 6 3 /6 Na CiiCi
• said substantially straight-chain aliphatic C -C alpha sulphonic acid being an unsubstituted alkane sulphonic acid or a mixture of unsubstituted alkene sulphonic acid, hydroxy alkane sulphonic acid and di-sulphonic acid;
• the weight ratio of soap to non-soap detergent being from 1:3 to 3:1 and (c) from 1% to 6% of an unsubstituted amide of a substantially straight-chain unsubstituted aliphatic C -C carboxylic acid when said alpha sulfonic acid is an aikene sulphonic acid, and when said alpha sulfonic acid is an alkane sulfonic acid 1%% to 6% of an unsubstituted amide of a substantially straightchain aliphatic C to C fatty acid.
• a washing powder consisting essentially, by weight of the powder, of:
• a washing powder consisting essentially by weight MAYER WEIABLATT Primary Exammcl' of the p n ofr P. E. WILLIS, Assistant Examiner (a) from 5-20% of an alkali metal or ammonium wa- 2O ter-soluble salt of a mixture substantially straight- U5, C1, X R

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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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Citations (2)

• 1966
  • 1966-06-03 GB GB24944/66A patent/GB1178688A/en not_active Expired
• 1967
  • 1967-05-27 GR GR670132932A patent/GR32932B/el unknown
  • 1967-05-30 CH CH763367A patent/CH491194A/de not_active IP Right Cessation
  • 1967-05-30 SE SE758/67*[A patent/SE305272B/xx unknown
  • 1967-05-31 FR FR108654A patent/FR1548302A/fr not_active Expired
  • 1967-05-31 NL NL6707519A patent/NL6707519A/xx unknown
  • 1967-05-31 FI FI671533A patent/FI47204C/fi active
  • 1967-06-02 AT AT513667A patent/AT283554B/de not_active IP Right Cessation
  • 1967-06-02 US US643052A patent/US3533954A/en not_active Expired - Lifetime
  • 1967-06-02 BE BE699445A patent/BE699445A/xx unknown
  • 1967-06-02 ES ES341315A patent/ES341315A1/es not_active Expired
  • 1967-06-02 DE DE1617224A patent/DE1617224B2/de active Pending
  • 1967-06-02 DK DK292167AA patent/DK127980B/da unknown
  • 1967-06-02 LU LU53806D patent/LU53806A1/xx unknown

Patent Citations (2)

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