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
  • C11D3/02—Inorganic compounds ; Elemental compounds
  • C11D3/12—Water-insoluble compounds
  • C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
  • C11D3/1246—Silicates, e.g. diatomaceous earth
  • C11D3/128—Aluminium silicates, e.g. zeolites
• • 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
  • C11D3/02—Inorganic compounds ; Elemental compounds
  • C11D3/12—Water-insoluble compounds
  • C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
  • C11D3/1246—Silicates, e.g. diatomaceous earth
  • C11D3/1253—Layer silicates, e.g. talcum, kaolin, clay, bentonite, smectite, montmorillonite, hectorite or attapulgite
  • C11D3/1273—Crystalline layered silicates of type NaMeSixO2x+1YH2O
• • 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
  • C11D3/37—Polymers
  • C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds

Definitions

• the invention relates to a detergent with 5 to 50% by weight, preferably 10 to 30% by weight, at least one surfactant, 0.5 to 60% by weight, preferably 5 to 60% by weight, builders and customary washing auxiliaries.
• silicate detergent builders so-called builders, e.g. Zeolite A and / or crystalline layered sodium silicate in combination with organic polycarboxylic acids, e.g. Citric acid or its salts is known from EP-0 405 122 A2. It is desirable that such polycarboxylic acids increase the washing performance of the detergents provided with them and are largely harmless from an ecological point of view, i.e. are readily biodegradable. This requirement also includes a pronounced lime binding capacity that should be preserved as far as possible over a temperature range of 20 to 90 ° C, as is common in household laundry.
• polyglycol diacid (CAS No. 39927-08-7) fulfills these requirements in the broadest sense.
• the lime binding capacity of polyglycol diacid is 220 mg Ca / g, at 60 and 90 ° C it is still 80 mg Ca / g, while citric acid only contains lime binders of 195 mg Ca / g at room temperature and 30 mg Ca / g at 90 ° C owns.
• the detergent of the invention is now characterized in that it contains 3 to 11% by weight of polyglycol diacid in addition to other builders.
• Detergent formulations which, in addition to crystalline layered sodium silicate and / or zeolite A, contain polyglycol diacid in concentrations of 3 to 10% by weight, mostly provide very good washing performance both with regard to dirt removal and with regard to preventing tissue deposits.
• the detergents were produced by the spray mixing method.
• a free-fall mixer was used in which the solid powdery components were premixed.
• the liquid ingredients were then sprayed onto the dry premix. The procedure is described in detail in the magazine "Seifen, Fette, ⁇ le, Wwachs” 99 (1973), pp. 351-357.
• test formulations given in Table 1 (Examples 1 to 12), including a commercial detergent, were tested under washing conditions in accordance with the following conditions:
• Table 2 shows the washing results obtained with Examples 1-12.
• the individual results which were measured on the test fabrics BW 101 (EMPA) and PE / BW 20C (WFK) are shown.
• the secondary washing effect is shown in the form of the average ash values (average of 5 test fabrics).
• Examples 2-4 and 8-11 according to the invention are superior in all respects to Comparative Examples 1 and 5 (without polyglycol diacid). But also in comparison with the commercial detergent concentrate No. 12, the examples 2-4 and 8-11 according to the invention show a clearly better washing performance.
• Examples 6 and 7 represent borderline cases which show that zeolite A generally does not show the good washing action as SKS 6, which is why without SKS 6 more than 6% by weight polyglycol diacid should be present in the detergent.
• Nonionic surfactants are understood to mean those compounds which have an organic, hydrophobic group and a hydrophilic radical, for example the condensation products of alkylphenols or higher fatty alcohols with ethylene oxide (fatty alcohol ethoxylates), the condensation products of polypropylene glycol with ethylene oxide or propylene oxide, the condensation products of Ethylene oxide with the reaction product of ethylenediamine and propylene oxide, as well as long-chain tertiary amine oxides
• surfactants with a zwitterionic (ampholytic) character include the following compounds: Derivatives of aliphatic, secondary and tertiary amines or quaternary ammonium compounds with 8 to 18 carbon atoms and a hydrophilic group in the aliphatic radical, such as sodium 3-dodecylaminopropionate, sodium 3-dodecylaminopropanesulfonate, 3- (N, N-dimethyl-N -hexadec
• Suitable washing auxiliaries according to the invention are weakly acidic, neutral or alkaline inorganic complexing agents.
• Useful, weakly acidic, neutral or alkaline-reacting salts are, for example, the bicarbonates or carbonates of the alkalis, furthermore the alkali salts of organic, non-capillary-active sulfonic acids, carboxylic acids and sulfocarboxylic acids containing 1 to 8 carbon atoms.
• water-soluble salts of benzene, toluene or xylene sulfonic acid water-soluble salts of sulfoacetic acid, sulfobenzoic acid or salts of sulfodicarboxylic acids as well as the salts of acetic acid, lactic acid, citric acid, tartaric acid, oxydiacetic acid (HOOC-CH2-O-CH2-COOH) acid, oxydib , 1,2,3,4-cyclopentanetetracarboxylic acid, polycarboxylates, polyacrylic acid and polymaleic acid.
• acetic acid lactic acid, citric acid, tartaric acid, oxydiacetic acid (HOOC-CH2-O-CH2-COOH) acid, oxydib , 1,2,3,4-cyclopentanetetracarboxylic acid, polycarboxylates, polyacrylic acid and polymaleic acid.
• the organic complexing agents include, for example, nitrilotriacetic acid, ethylenediaminetetraacetic acid, N-hydroxyethylethylenediaminetriacetic acid or polyalkylene-polyamine-N-polycarboxylic acids.
• Washing aids according to the invention also include products such as the alkali or ammonium salts of sulfuric acid, boric acid, alkylene, hydroxyalkylene or aminoalkylenephosphonic acid, as well as bleaching agents, stabilizers for peroxide compounds (bleaching agents) and water-soluble organic complexing agents.
• the bleaching agents include sodium perborate or tetrahydrate, sodium percarbonate, the alkali metal salts of peroxomono- or peroxodisulfuric acid, the alkali metal salts of peroxodiphosphoric acid (H4P2O8), and alkali metal salts of peroxocarboxylic acids, such as diperoxododecanedioic acid.
• stabilizers for these bleaching agents are water-soluble, precipitated magnesium silicate, organic complexing agents such as the alkali salts of iminodiacetic acid, nitrilotriacetic acid, tetraacetylethylene diamine (TAED), methylene diphosphonic acid, 1-hydroxyethane-1,1-diphosphonic acid and nitrilotrismethylene phosphonic acid.
• organic complexing agents such as the alkali salts of iminodiacetic acid, nitrilotriacetic acid, tetraacetylethylene diamine (TAED), methylene diphosphonic acid, 1-hydroxyethane-1,1-diphosphonic acid and nitrilotrismethylene phosphonic acid.
• Washing aids that increase the dirt-carrying capacity of washing liquors, such as carboxymethyl cellulose, carboxymethyl starch, methyl cellulose or copolymers of maleic anhydride with methyl vinyl ether or acrylic acid, foam regulators, such as mono- and dialkyl phosphoric acid esters with 16 to 20 carbon atoms in the alkyl radical, and optical brighteners, disinfectants and enzymes, such as proteas , Amylases, lipases can also be additional components of the detergent of the invention.
• foam regulators such as mono- and dialkyl phosphoric acid esters with 16 to 20 carbon atoms in the alkyl radical
• optical brighteners disinfectants and enzymes, such as proteas , Amylases, lipases can also be additional components of the detergent of the invention.

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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)
• Inorganic Chemistry (AREA)
• Crystallography & Structural Chemistry (AREA)
• Detergent Compositions (AREA)

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Publications (3)

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Family Applications (1)

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Cited By (2)

Citations (3)

• 1993
  • 1993-04-24 DE DE4313529A patent/DE4313529A1/de not_active Withdrawn
• 1994
  • 1994-03-23 DE DE59408502T patent/DE59408502D1/de not_active Expired - Fee Related
  • 1994-03-23 EP EP94104556A patent/EP0622448B1/fr not_active Expired - Lifetime
  • 1994-03-23 ES ES94104556T patent/ES2135499T3/es not_active Expired - Lifetime
  • 1994-04-22 JP JP6085027A patent/JPH0748597A/ja not_active Withdrawn

Patent Citations (3)

Non-Patent Citations (3)

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