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
  • C11D1/12—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
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/20—Organic compounds containing oxygen
  • C11D3/22—Carbohydrates or derivatives thereof
  • C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
  • C11D3/225—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin etherified, e.g. CMC
• • 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
  • C11D3/39—Organic or inorganic per-compounds
  • C11D3/3947—Liquid compositions
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
  • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
  • D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
  • D06L4/12—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen combined with specific additives

Definitions

• Concentrated liquid detergent compositions often suffer from the disadvantage that one or more of the components separate out during standing and/ or that a clear solution is not obtained on dilution to the lower concenration employed for actual use.
• a bleaching agent in a concentrated liquid detergent composition to give a product which will retain its bleaching activity to an acceptable degree on storage and which will therefore compare with the well known solid bleaching detergent compositions, containing sodium perborate or sodium percarbonate, used in certain applications, particularly in the of a stable pourable emulsion, suspension, or coacervate' which contains (a) at least one anionic active detergent A of the general formula:
• RO.(C,,H O) .SO M in which R is an alkyl radical containing from 6 to 18 carbon atoms or an alkylaryl radical containing from 6 to 18 carbon atoms in the alkyl radical; M is an alkalimetal, ammonium or substituted ammonium radical, preferably sodium; n is 2 or 3, and m is from 1 to 8, preferably 2 to 4; (b) a condensed phosphate; a soil-suspending agent; and (d) hydrogen peroxide.
• the composition of the invention contains a mixture of detergents A of the general formula given, in which the average value of m is at least 2 and is preferably from 2 to 4.
• Particularly suitable are the sodium salts of sulphated polyethyleneglycol mono-alkyl ethers of the general formula RO.(C H O) .SO Na, in which R is an alkyl radical with 6 to 12 carbon atoms and m is from 2 to 3, or R is an alkyl radical with 12 to 18 carbon atoms and m is from 3 to 4.
• Preferred detergents of type A described above include the sodium salt of sulphated diethyleneglycol monolauryl ether, C H CH .O(C H O) .SO Na; the sodium salt of sulphated diethyleneglycol mono-alkyl ether RO.(C H O) SO Na, in which R denotes a mixture of alkyl radicals as these occur in coconut fatty alcohols, the
• the amount of the condensed phosphates is desirably from 5 to 30%, preferably from 9 to 25%, by weight of the liquid composition.
• the soil-suspending agent may be, for example a carboxymethylcellulose of any customary degree of substitution, such as 0.4-1.1 carboxymethyl groups per monosaccharide unit, in the conventional small amounts.
• the composition preferably contains hydrogen peroxide in an amount of 0.5 to 3% by weight of the solution, preferably together with a small amount of a stabiliser for hydrogen peroxide, such as, for example, sodium p-hydroxybenzoate, sodium nitrilotriacetate or sodium ethylenediamine tetra-acetate.
• a stabiliser for hydrogen peroxide such as, for example, sodium p-hydroxybenzoate, sodium nitrilotriacetate or sodium ethylenediamine tetra-acetate.
• B may for example be a fatty alkyl sulphate salt with from 8 to 18, preferably about 12, carbon atoms in the molecule, or an alkylaryl sulphonate with from 8 to 16 carbon atoms in the alkyl group, preferably an alkylbenzene sulphonate with about 12 carbon atoms in the alkyl group. Salts of acylated hydroxy or amino sulfonic acids may also be used.
• Preferred detergents of type B include sodium tetrapropylenebenzene sulphonate, sodium dodecylbenzene sulphonate, sodium pentapropylenebenzene sulphonate, sodium lauryl sulphate and sodium oleyl sulphate.
• the expressions 5tetrapropylenebenzene and pentapropylenebenzene denote alkylbenzenes in which the alkyl groups are derived from propylene tetramer and propylene pentamer, respectively.
• the weight ratio A:B is preferably from 1:1 to 1:6, most suitably from 1:2 to 1:4.
• the active detergents A and B together suitably form from 5 to 25%, preferably from 6 to 20% by weight of the liquid composition.
• compositions such as fatty acid monoor diethanolamides, optical brighteners and inorganic salts other than condensed phosphates, may be added, subject to the proviso that the compositions should not of course contain ingredients which will react with hydrogen peroxide or catalyse its decomposition on storage. , In particular, the compositions should not contain sodium silicate.
• liquid bleaching and detergent compositions of the invention in order to ensure that they do not contain matter that is easily oxidised by hydrogen peroxide, all the ingredients may be subjected to an o-xidising pretreatment, preferably with hydrogen peroxide. It is, however, preferred to prepare the composition from untreated ingredients, using a slight excess of hydrogen peroxide. If the composition is then kept for a few weeks, the excess hydrogen peroxide becomes decomposed, but the remainder is surprisingly resistant to decomposition on prolonged storage.
• the process of destroying easily oxidisable matter by oxidation with the excess hydrogen peroxide may be speeded up so as to o muao 7 L 1 Z 0 L0 0 1 1 F the same 5 1 6:0 n40 0 2 &
• Example 3 The following compositions were prepared in the same way as in Example 1:
• compositions of the invention can be effected by incorporating the ingredients (a), (b) and (c) in water, followed by addition of hydrogen peroxide.
• a suitable procedure is as follows:
• glycol mouo-lauryl other (A) Sodium salt of sulphated tetraethyleneglycol nonylphcnyl ether (AL. Salts of a protein-fatty acid condensate with bound su yl-hexyl sulphate (B).
• Benzoyl ester of sodium phenol sul- Water Sodium oleyl sulphate (B) 35 Coconut-oil fatty acid monoethanolam1dc Sodium carboxymethy1cel1ulose Sodium pyrophosphate Sodium tripolyphosphate.
• Optical brightencrr Hy *ogen per0xide p-Hydroxybenzoic acid Benzoyl ester of sodium 50 Sodium salt of sulphated diethylenc- Sodium eth 55 Why acid diethenolamide Sodium carboxymethyl cellulose.
• Sodium tripolyphosphate Optical brightencrs.
• compositions of the invention are general purpose detergent compositions in the form of stable pourable liquid emulsions, suspensions, or coacervates which have The invention will now be illustrated in more detail Water by the following examples:
• Example 1 The following compositions were prepared by mixing together the ingredients in the proportions shown, the figlphated tetraethylcneglycol nonylphenyl other (A) Coconut-oil fatty acid mono-ethanolamide
• Example 2 The following compositions were prepared in the same way as in Example 1.
• compositions although clear to the eye, in fact show a Tyndall-elfect; that is, they are emulsions, suspensions or coacervates and not true solutions.
• compositions are in the form of stable, pourable dispersions which have little tendency to separate out on standing.
• composition according to claim 1 in which the value of m is from 2 to 4.
• R is an alkyl radical with 6 to 12 carbon atoms
• n 2 to 3.
• composition according to claim 1 in which the anionic active detergent A, is the sodium salt of sulphated polyethylene glycol monalkyl ether, of the formula RO(C H O) SO Na, in which:
• R is an alkyl radical with 13 to 18 carbon atoms, and m is from 3 to 4.
• a composition according to claim 1 which contains a compound from the class consisting of sodium p-hydroxy benzoate, sodium nitrilotriacetate and sodium ethylene diamine tetra acetate, as stabilizer for hydrogen peroxide.
• a composition according to claim 1 which contains, in addition to the anionic active detergent A, an anionic active detergent B, from the class consisting of alkyl sulphate salts containing 8 to 18 carbon atoms in the alkyl group, and alkylaryl sulphonates containing 8 to 16 carbon atoms in the alkyl group.
• composition according to claim 6 in which the weight ratio of active detergent AzB is from 1:1 to 1:6.
• composition according to claim 6 which contains the following constituents in the following percentages by weight of the liquid composition:
• Detergent A 1.4-3.8 Detergent B 4.7-12.1 Fatty acid monoethanolamide 1.0-2.8 Sodium carboxymethyl cellulose 0.3-0.8 Sodium pyrophosphate 1.1-2.9 Sodium tripolyphosphate 8.0-18.1 Optical brightener 0.03-0.08 Hydrogen peroxide 1.0-2.6 Stabilizer for hydrogen peroxide 0.02-0.06 Water to 100.

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• Chemical & Material Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Organic Chemistry (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Wood Science & Technology (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Health & Medical Sciences (AREA)
• Inorganic Chemistry (AREA)
• Molecular Biology (AREA)
• Emergency Medicine (AREA)
• Textile Engineering (AREA)
• Detergent Compositions (AREA)

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Cited By (12)

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Citations (5)

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• 0
  • BE BE580351D patent/BE580351A/xx unknown
  • NL NL113683D patent/NL113683C/xx active
  • NL NL241165D patent/NL241165A/xx unknown
• 1958
  • 1958-07-10 GB GB22162/58A patent/GB855679A/en not_active Expired
  • 1958-07-10 GB GB21789/59A patent/GB855893A/en not_active Expired
• 1959
  • 1959-07-03 US US824800A patent/US3130164A/en not_active Expired - Lifetime
  • 1959-07-07 FR FR799498A patent/FR1229408A/fr not_active Expired
  • 1959-07-08 DE DEU6332A patent/DE1199422B/de active Pending
  • 1959-07-09 ES ES0250871A patent/ES250871A1/es not_active Expired
  • 1959-07-09 ES ES0250872A patent/ES250872A1/es not_active Expired
  • 1959-07-10 CH CH7560659A patent/CH387211A/de unknown
  • 1959-07-10 FR FR799863A patent/FR1229521A/fr not_active Expired

Patent Citations (5)

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