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
  • C11D3/24—Organic compounds containing halogen
  • C11D3/245—Organic compounds containing halogen containing fluorine
• • 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
  • C11D1/835—Mixtures of non-ionic with cationic 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
  • C11D1/66—Non-ionic compounds
  • C11D1/835—Mixtures of non-ionic with cationic compounds
  • C11D1/8355—Mixtures of non-ionic with cationic compounds containing a combination of non-ionic compounds differently alcoxylised or with different alkylated chains
• • 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
  • C11D1/62—Quaternary ammonium 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
  • C11D1/66—Non-ionic compounds
  • C11D1/72—Ethers of polyoxyalkylene glycols
  • C11D1/721—End blocked 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
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/722—Ethers of polyoxyalkylene glycols having mixed oxyalkylene groups; Polyalkoxylated fatty alcohols or polyalkoxylated alkylaryl alcohols with mixed oxyalkylele groups

Definitions

• the invention relates to a surfactant-containing mixture for the mechanical cleaning of hard surfaces, in particular bottles and dishes, in the alkaline to highly alkaline range of the cleaning liquor.
• the system must also have as little foam as possible be foam-free, as excessive foam formation can lead to malfunctions in the operating behavior of the system, for example if the dirt that accumulates in the foam layer cannot be removed sufficiently. Additional tendencies towards foam formation are caused by the impurities carried in by the items to be cleaned, especially by protein-containing residues on the items to be cleaned. In the case of bottle cleaning, this also applies in particular to the labels to be removed, which are introduced into the cleaning liquor through the glue residues and residues of printing inks, including the surfactant auxiliaries contained in the latter.
• non-ionic surfactants with a low-foaming characteristic as cleaning agents for hard surfaces in alkaline baths.
• These are, in particular, addition products of ethylene oxide and / or propylene oxide with amines, longer-chain fatty alcohols or alkylphenols, polyglycol ether formals or acetals or block copolymers of ethylene and propylene oxide.
• Such surfactant systems can be adjusted, in particular by suitable variation of the ethylene oxide and propylene oxide proportions, to the lowest possible foam tendency and increased cleaning action, with an excess of propylene oxide favoring the former property and an excess weight of ethylene oxide promoting the latter property.
• the object was therefore to improve the dirt-holding capacity of such mixtures without having to accept the disadvantage of substantivity, a minimal tendency to foam formation to be achieved even with extremely high liquor movements and / or extremely foam-promoting soiling.
• the non-ionic component A may be 3) a P olyalkylenglykoldialkylether of formula be, which contains ethylene oxide and optionally propylene oxide units, which can be arranged randomly or in blocks.
• R 1 is an alkyl radical with 6 to 22 carbon atoms, preferably with 8 to 18 carbon atoms
• R 3 is an alkyl radical with 1 to 4 carbon atoms, preferably the tert-butyl radical
• c is a statistical mean in the range from 5 to 20, preferably from 6 to 14
• d has a statistical mean in the range from 0 to 3, preferably 0.
• non-ionic surfactants can also be present as mixtures within groups A 1 ), A 2 ) or A 3 ), or else between groups A 1 ), A 2 ) and / or A 3 ).
• the non-ionic surfactants of group A 1 ) are preferred.
• the surfactant mixture contains a quaternary ammonium compound B of the formula as a cationic component in which R 4 and R 5 , identical or different, are an alkyl radical having 1 to 12 C atoms, preferably having 4 to 8 C atoms, in particular having 4 to 6 C atoms, R 6 is an alkyl radical having 1 to 8 C atoms Atoms, preferably 1 to 6 carbon atoms, and R 7 is an alkyl radical with 1 to 4 carbon atoms or a benzyl radical.
• A is an anion, preferably a chloride or bromide anion or one of the formula CH 3 OSO 3 - .
• Rf is a CF 3 - or (CF 3 ) 2 -CF radical
• R 8 is a lower alkyl radical
• R 9 is hydrogen or a lower alkyl radical (with a lower alkyl radical here being one with 1 to 3 carbon atoms, preferably a methyl - or ethyl radical should be understood)
• e is an integer from 5 to
• f is an integer from 0 to 4
• the composition of the surfactant mixtures is essential for the advantageous properties.
• the ratio of components A: B in the mixture A + B should be in the range from 20:80 to 95: 5% by weight, preferably 30:70 to 70: 30% by weight.
• the fluorinated alcohol C) is additionally present as an anti-foaming agent in an amount of 0.001 to 20% by weight, preferably 0.1 to 15% by weight, in the mixture according to the invention.
• fluorinated alcohols are solid, wax-like substances at room temperature. They can be added in bulk to the mixture of components A + B or its individual components, expediently with gentle heating and stirring.
• these fluorinated alcohols are advantageously introduced in a mixture with a solubilizer in which they have been predissolved. This is especially true when very small amounts of the fluorinated alcohol are to be used.
• a suitable solubilizer must be completely or at least largely homogeneously miscible with the surfactant mixture A + B or its individual components.
• the fluorinated alcohol C) should be largely or entirely soluble in this solubilizer be.
• An effective amount of such a solubilizer is preferably 1 to 1000 parts by weight per 1 part by weight of the fluorinated alcohol; however, this effective amount should not exceed 20% by weight of the total weight of components A + B.
• solubilizers are aliphatic ketones, such as dimethyl and diethyl ketone, carboxylic acid esters of aliphatic alcohols and diols, such as ethyl acetate, isobutyl acetate, ethylene glycol acetate, 2-ethylhexyl-2-ethylhexanoic acid ester, acid amides of longer-chain carboxylic acids, such as N- (2-ethyl) Isononanoic acid amide, polypropylene glycols with molecular weights> 600 and mixed polyglycols from units of ethylene and propylene oxide, ethylene and propylene glycol monoethers and the corresponding polyglycol ethers, such as methyl, ethyl and butyl monoethers of di-, tri- and tetraethylene glycol. Alkanols with 1 to 9 carbon atoms in a straight or branched chain should preferably be mentioned. As far as miscty
• the surfactant-containing mixtures according to the invention can be used as a mixture of components A + B + C, optionally including the solubilizer in undiluted, liquid form. However, they can also be used in the form of aqueous concentrates, for example for better meterability, if appropriate also with the addition of an organic solvent which is not a solubilizer in the abovementioned sense.
• components A and B can also first be added individually or together to the aqueous cleaning liquor and the fluorinated alcohol C can be replenished, a solubilizer being present here got to.
• component C can also be introduced premixed with one of the two components A or B, with the other being replenished.
• the application concentration is advantageously 0.05 to 10 g of the surfactant mixture A + B (without inclusion of C) per liter of cleaning liquor, preferably 0.1 to 2 g per liter.
• Such application concentrations are non-critical statements, since the amount depends to a certain extent on the type of surface to be cleaned and on the type and extent of the contaminants.
• further additives and auxiliaries can be added to the surfactant mixtures according to the invention in the production of commercially available formulations.
• these include dyes, fragrances, corrosion inhibitors and disinfectants.
• the known builders which are optionally also complexing agents, should also be mentioned here.
• the condensed phosphates such as tripolyphosphates and in particular pentasodium triphosphate, come into consideration.
• complex-forming aminopolycarboxylic acids and their salts such as, in particular, alkali metal salts of nitrilotriacetic acid and ethylenediaminetetraacetic acid, and also also complex-forming hydroxycarboxylic acids and polymeric carboxylic acids, such as citric acid, tartaric acid and the like.
• Another class of complex-forming odorants are polyphosphonic acid salts, such as, for example, the alkali salts of aminophosphonic acid.
• builders, such as silicates, for example sodium metasilicate, carbonates, bicarbonates, borates and citrates can also be added. With the aid of such additives, the mixtures according to the invention can optionally be converted into powder form and can also be used in this form.
• the surfactant-containing mixtures according to the invention are suitable for the mechanical cleaning of hard surfaces in alkaline liquors. This applies to cleaning in household dishwashers and so-called commercial cleaning systems.
• the mixtures are particularly suitable for industrial cleaning systems for hard surfaces, for example crockery and bottle washing systems, which operate under high mechanical liquor movements in continuous operation and in highly alkaline liquors at pH values of ⁇ 10, preferably 2 12.
• the necessary alkaline additives preferably sodium or potassium hydroxide for the highly alkaline pH range of the liquor, can be dissolved in the aqueous cleaning liquor before the surfactant-containing mixture according to the invention is introduced. However, they can also be added directly to the mixture and metered together with it.
• the alkaline agent is expediently added in the form of powder, flakes or cookies.
• the mixtures according to the invention have an extremely low tendency towards foaming which is indispensable for industrial cleaning systems. It is essential that the fluorinated alcohol C used as an anti-foaming agent is absolutely stable in the highly alkaline range. By adding it it is achieved that even with extremely high mechanical liquor movements, such as occur in the bottle cleaning systems of breweries, practically no foaming takes place. Even with heavily to extremely foam-promoting soiling, such as protein, milk, beer, lemonade and glue and surfactant components from labels, the foaming tendency is reduced to a minimum.
• the surfactant-containing mixtures have this extremely low tendency to foam formation not only at the working temperatures of such cleaning systems, that is above about 40 ° C, but also at low temperatures, so that when refilled with cold water and heating there is no formation of disruptive foam, which then leads to foam or can lead to system circulation problems.
• the surfactant mixtures according to the invention as cleaning agents for the mechanical cleaning of hard surfaces, in particular with regard to the high demands placed on industrial cleaning systems, also have the following significant advantages: the mixtures are not only resistant to alkali, but also together with alkali storage stable for long periods.
• the excellent dirt absorption capacity allows long service lives in the system until it is refilled without impairing the cleaning effect.
• Good wetting capacity and drainage behavior enable dirt to be removed quickly and thus a high throughput of items to be cleaned. The freedom from stains and streaks as well as high gloss of the cleaned goods is also guaranteed.
• the surfactant components are mixed together and then the fluorinated alcohol is stirred in at 30 to 40 ° C.
• the framework and auxiliary materials are placed in a mixing drum, where they are mixed well with the surfactant mixture.
• Self foam at 25 ° C (according to DIN standard 53 902): 10 ml self foam at 65 ° C (according to DIN standard 53 902): 0 ml drainage behavior after rinsing with water: no drips.
• the components of the surfactant-containing mixture are mixed and then intimately mixed with the framework and auxiliary substances that have already been mixed to form the powder.
• Own foam at 25 ° C (according to DIN standard 53 902): 20 ml own foam at 65 ° C (according to DIN standard 53 902): 0 ml foam at 65 ° C (according to DIN standard 53 902) with a load of 10 wt .-% beer: 0 ml maximum protein load (up to 30 ml foam): 7.2 g / 1 drainage behavior after rinsing with water: no droplets.
• the surfactant-containing formulation which has been premixed with one another in the order of the components is incorporated into this mixture.
• Own foam at 25 ° C (according to DIN standard 53 902): 10 ml own foam at 65 ° C (according to DIN standard 53 902): 0 ml Maximum protein load (up to 30 ml foam): 17.5 g / l drainage behavior after Rinse with water: no drops.
• Liquid bottle cleaner
• Demineralized water is initially introduced and then phosphoric acid and 2-phosphonobutane-1,2,4-tricarboxylic acid are stirred in. Now the premixed surfactant-containing mixture is homogenized.
• Own foam at 25 ° C (according to DIN standard 53 902): 10 ml own foam at 65 ° C (according to DIN standard 53 902): 0 ml foam at 65 ° C (according to DIN standard 53 902) with a load of 10 wt .-% beer: 0 ml.
• Own foam at 25 ° C (according to DIN standard 53 902): 10 ml own foam at 65 ° C (according to DIN standard 53 902): 0 ml Maximum protein load (up to 30 ml foam): 9.0 g / l Drainage behavior after Rinse with water: no drops.

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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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• 1980
  • 1980-12-23 DE DE19803048641 patent/DE3048641A1/de not_active Withdrawn
• 1981
  • 1981-12-14 US US06/330,768 patent/US4443364A/en not_active Expired - Fee Related
  • 1981-12-16 EP EP81110471A patent/EP0054894B1/fr not_active Expired
  • 1981-12-16 AT AT81110471T patent/ATE8658T1/de not_active IP Right Cessation
  • 1981-12-16 DE DE8181110471T patent/DE3165128D1/de not_active Expired
  • 1981-12-22 CA CA000392972A patent/CA1160535A/fr not_active Expired
  • 1981-12-22 JP JP56206278A patent/JPS58109599A/ja active Granted

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