EP0572453A1 - Melange d'au moins deux alcools alcoxyles et son utilisation comme additif tensio-actif antimousse dans des produits de nettoyage par des procedes de nettoyage en machine. - Google Patents

Melange d'au moins deux alcools alcoxyles et son utilisation comme additif tensio-actif antimousse dans des produits de nettoyage par des procedes de nettoyage en machine.

Info

Publication number
EP0572453A1
EP0572453A1 EP92904485A EP92904485A EP0572453A1 EP 0572453 A1 EP0572453 A1 EP 0572453A1 EP 92904485 A EP92904485 A EP 92904485A EP 92904485 A EP92904485 A EP 92904485A EP 0572453 A1 EP0572453 A1 EP 0572453A1
Authority
EP
European Patent Office
Prior art keywords
mixture
alkoxylated alcohols
foam
alkoxylated
cleaning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP92904485A
Other languages
German (de)
English (en)
Other versions
EP0572453B1 (fr
Inventor
Dieter Stoeckigt
Richard Baur
Horst Trapp
Johannes Perner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BASF SE filed Critical BASF SE
Publication of EP0572453A1 publication Critical patent/EP0572453A1/fr
Application granted granted Critical
Publication of EP0572453B1 publication Critical patent/EP0572453B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/0026—Low foaming or foam regulating compositions
    • 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
    • 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
    • C11D1/825—Mixtures of compounds all of which are non-ionic
    • C11D1/8255—Mixtures of compounds all of which are non-ionic containing a combination of compounds differently alcoxylised or with differently alkylated chains

Definitions

  • the present invention relates to a mixture of at least two alkoxylated alcohols of the general formula I.
  • x denotes a number between 1 and 12 and y denotes a number between 1 and 15,
  • an alkoxylated alcohol carries a straight-chain or branched C ⁇ -Ci ⁇ -alkyl group as the radical R and another carries a straight-chain or branched C ⁇ o-C2o-alkyl group as the radical R, but the two radicals R are in the average number of carbon atoms must distinguish at least 0.5, and both alkoxylated alcohols are present in a ratio of 10:90 to 90:10.
  • the invention also relates to the use of this mixture as a foam-suppressing surfactant additive in cleaning agents for machine-operated cleaning processes. Furthermore, the invention relates to detergents containing such mixtures of alkoxylated alcohols I.
  • wetting agents such as ethylene and / or propylene oxide adducts with alcohols, phenols or amines may be mentioned, for example.
  • EP-A 161 537 (2) relates to the use of non-ionic surfactants which are end group-capped with methyl, ethyl or allyl radicals and which can be obtained by stepwise alkoxylation of C 8 -C 22 -alkanols with at least two different alkylene oxides, as low-foam, foam-suppressing and Biodegradable surfactants in industrial cleaning processes.
  • EP-B 019 173 (3) relates to the use of Cg-C s-alkanols first reacted with propylene oxide and then with ethylene oxide as low-foaming and biodegradable surfactant additives in dishwashing detergents for dishwashers.
  • surfactants of the type mentioned and mixtures thereof also prove to be in need of improvement when used in cleaning agents for mechanically running cleaning processes, in particular the foam-damping behavior and the dispersibility in water are not yet optimal.
  • the present invention was therefore based on the object of remedying the deficiencies described in the prior art. We have found that this object is achieved by the mixture of at least two alkoxylated alcohols I defined at the outset and its use as a foam-suppressing surfactant additive in cleaning agents for machine-operated cleaning processes.
  • Examples of straight-chain or branched C ⁇ -Ci ⁇ - or C ⁇ o-C2 ⁇ ⁇ alkyl radicals for R are: n-octyl, 2-ethylhexyl, n-nonyl, iso-nonyl, n-decyl, iso-decyl, n-undecyl, n -Dodecyl, n-tridecyl, iso-tridecyl, n-tetradecyl, n-pentadecyl, n-hexadecyl, n-heptadecyl, n-octadecyl and n-eicosyl.
  • the radicals R are preferably straight-chain or only branched to a small extent, i.e. they contain a maximum of 3 methyl or ethyl side chains.
  • R is a residue of naturally occurring fatty alcohols or preferably of synthetically produced oxo or Ziegler alcohols.
  • alcohols which can be used well after the oxo synthesis are Cg / Cu, C 12 C I-C13 C15 and Cis / Ci ⁇ -alkanol mixtures.
  • Examples of readily usable alcohols produced by the Ziegler synthesis are ⁇ / C ⁇ o, C ⁇ o / C! 2-, C12 C1 -, C 12 / C ⁇ 6 - and C ⁇ 6 / C 2 o-alkanol mixtures.
  • alkanols used in the synthesis of the compounds I generally represent statistical homologues and isomer mixtures, it is expedient to speak of an average number of carbon atoms. This average value usually represents the maximum frequency.
  • Alkanols prepared in a manner known per se. These methods are known to the person skilled in the art and require no further explanation.
  • the degree of ethoxylation x is 1 to 12, preferably 2 to 5, in particular 3 to 4; the degree of propoxylation is 1 to 15, preferably 2 to 6, in particular 4 to 6.
  • the degrees of alkoxylation x and y generally also represent average values.
  • a mixture of at least two, preferably two or three, in particular two, alkoxylated alcohols I is used, two radicals R having to differ by at least 0.5 in the average number of carbon atoms, and the corresponding two alkoxylated alcohols in the ratio of 10:90 to 90:10, preferably 25:75 to 75:25.
  • a difference in the average number of C atoms of the two radicals R of at least 1, in particular a difference of 1 to 2, is particularly favorable.
  • Mechanical cleaning processes are mainly found in the metal industry, in the food industry, e.g. the beverage, canning, sugar industry or milk, meat and fat processing industry, in the catering trade and also in the household.
  • metal objects often have to be removed after their manufacture or processing soiling and residues, which originate from drawing and rolling greases or organic corrosion protection agents. All surfaces of containers and tools that come into contact with food during production and processing, as well as during transport, must be cleaned from food residues and other contaminants at certain intervals.
  • a typical example of an industrially carried out machine cleaning process from the beverage industry is the washing of used bottles which, for example, contained beer, milk, soft drinks or mineral water.
  • a rinse aid commonly used here contains nonionic surfactants, hydrotropes (solubilizers) such as isopropanol, ethanol and / or cumene sulfonate, water and, if appropriate, organic or inorganic acids and auxiliaries such as colorants and preservatives.
  • the present invention also relates to a process for the preparation of cleaning agents for machine-running cleaning processes, in particular rinse aids for machine dishwashing, which is characterized in that a mixture of at least two alkoxylated alcohols I is added to these agents as a foam-suppressing surfactant additive.
  • the present invention furthermore relates to cleaning agents for machine-operated cleaning processes which contain a mixture of at least two alkoxylated alcohols I as a foam-suppressing surfactant additive in an amount of 0.1 to 40% by weight, preferably 0.5 to 20% by weight. , based on the total amount of the formulation.
  • the present invention furthermore relates to rinse aids for machine dishwashing, which comprise a mixture of at least two alkoxylated alcohols I as foam-suppressing surfactant additive in an amount of 0.5 to 30% by weight, preferably 1 to 15% by weight. %, based on the total amount of the formulation.
  • rinse aid formulations for machine dishwashing in the household were produced.
  • the following table shows the compositions of these formulations.
  • the cloud point was determined in accordance with DIN 53 917. From practical studies, it is known that falling cloud points, equivalent to an increase in hydrophobicity, result in improvements in the foaming behavior, but on the other hand reduce the dispersibility, which leads to an uneven distribution of the rinse aid in the washing liquor and thus to a deterioration ⁇ the behavior of the drainage (spots, stripes and streaks) leads. At cloud points ⁇ 40 ° C., instability, ie phase separation, of the rinse aid formulation is also observed.
  • the foam damping behavior is checked in the dishwasher by the so-called "egg test". In this case, the number of revolutions of a spray arm is determined by magnetic induction measurement in a commercially available domestic dishwasher with the aid of a counter.
  • Foam formation which occurs particularly in the presence of proteins (protein), reduces the number of revolutions of the spray arm. Because of the reduced recoil force, the number of revolutions therefore represents a measure of the suitability of surfactants in cleaning devices with high mechanics.
  • the test time is 12 minutes, the average number of revolutions per minute being calculated from the total number of revolutions.
  • the washing process is started at room temperature, after about 10 minutes the temperature of the rinsing water is 60 ° C.
  • the rinse aid formulation is injected into a glass tube through which tap water at 90 ° C. flows through a membrane pump. At the end of the glass tube, the dispersion produced in this way is sprayed through a second nozzle into a beaker. With a running time of about 3.5 minutes, about 30 ml of rinse aid formulation are metered into a water stream of 2 liters of water at 90 ° C. The dispersion is visually assessed and graded in the glass tube and beaker, based on the following grading scheme:
  • Grade 3 moderate dispersion in the glass tube, moderately dispersed in the beaker (fine droplets of approx. 1 mm)
  • Grade 4 good dispersion in the tube, fine dispersion in a beaker (droplets ⁇ 0.5 mm)
  • compositions Composition, cloud point, dishwasher speed and dispersibility of rinse aid formulations
  • Surfactant A C ⁇ 3 / Ci5-oxo alcohol + 11 mol ethylene oxide + 2 mol butylene oxide according to (1)
  • Surfactant B Cg / Cn-oxo alcohol + 7 mol ethylene oxide + 1 mol butylene oxide + methyl end group lock according to (2)
  • Surfactant C Ci 3 / C15 oxo alcohol + 4 mol propylene oxide + 2 mol ethylene oxide according to (3)
  • Example 5 shows that when using the surfactant additives to be used according to the invention (Examples 5 and 6), rinse aid formulations are obtained which combine excellent foam-damping behavior with excellent dispersibility, despite a sometimes very low cloud point (Example 5). Frequently, the lowering of the cloud point by adding a hydrophobic surfactant leads to an improvement in foam damping, but at the same time to a loss of the dispersing properties. The cloud point is usually raised again by the addition of solubilizers and thus the dispersibility is improved.
  • Example 5 shows that by adding the specified mixtures of compounds I to solubilizers to raise the cloud point completely or at least partially.
  • Comparative Examples 2, 3, 4 and 7 show how the addition of or mixture of known agents from the prior art improves foam damping somewhat, but the dispersibility is impaired by lowering the cloud point.

Landscapes

  • 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)
  • Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Un mélange contenant au moins deux alcools alcoxylés et répondant à la formule (I), dans laquelle x vaut un chiffre entre 1 et 12 et y vaut un chiffre entre 1 et 15. Un des alcools alcoxylés porte en tant que reste R un groupe alkyle C8-C18 à chaîne droite ou ramifiée, alors que l'autre alcool alcoxylé porte en tant que reste R un groupe alkyle C10-C20 à chaîne droite ou ramifiée, les deux restes R devant présenter un nombre moyen d'atomes de carbone qui diffère d'au moins 0,5. Le rapport entre les deux alcools alcoxylés est compris entre 10 : 90 et 90 : 10. Ce mélange est utile comme additif tensio-actif antimousse dans des produits de nettoyage destinés à des procédés de lavage en machine.
EP92904485A 1991-02-22 1992-02-11 Methode pour la preparation d'un melange de deux alcools alcoxyles et son utilisation comme additif tensio-actif anti-mousse dans des produits de nettoyage pour des procedes de nettoyage en machine Expired - Lifetime EP0572453B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4105602A DE4105602A1 (de) 1991-02-22 1991-02-22 Verwendung einer mischung aus mindestens zwei alkoxylierten alkoholen als schaumdaempfender tensidzusatz in reinigungsmitteln fuer maschinell ablaufende reinigungsprozesse
DE4105602 1991-02-22
PCT/EP1992/000289 WO1992014808A1 (fr) 1991-02-22 1992-02-11 Melange d'au moins deux alcools alcoxyles et son utilisation comme additif tensio-actif antimousse dans des produits de nettoyage par des procedes de nettoyage en machine

Publications (2)

Publication Number Publication Date
EP0572453A1 true EP0572453A1 (fr) 1993-12-08
EP0572453B1 EP0572453B1 (fr) 1995-08-30

Family

ID=6425681

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92904485A Expired - Lifetime EP0572453B1 (fr) 1991-02-22 1992-02-11 Methode pour la preparation d'un melange de deux alcools alcoxyles et son utilisation comme additif tensio-actif anti-mousse dans des produits de nettoyage pour des procedes de nettoyage en machine

Country Status (8)

Country Link
US (1) US5536884A (fr)
EP (1) EP0572453B1 (fr)
JP (1) JPH06505044A (fr)
AT (1) ATE127150T1 (fr)
CA (1) CA2104468A1 (fr)
DE (2) DE4105602A1 (fr)
DK (1) DK0572453T3 (fr)
WO (1) WO1992014808A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022234523A1 (fr) * 2021-05-05 2022-11-10 Sabic Global Technologies B.V. Procédé pour l'éthoxylation d'un mélange d'alcool gras à chaîne droite et d'alcool gras à chaîne ramifiée dans une réaction en une seule étape

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DE4236506A1 (de) * 1992-10-29 1994-05-05 Henkel Kgaa Verfahren zur Herstellung wäßriger Lösungen anionischer Tenside mit verbesserter Kältestabilität
US6506340B1 (en) 1993-06-01 2003-01-14 Cobe Cardiovascular, Inc. Antifoaming device and method for extracorporeal blood processing
DE4426889A1 (de) * 1994-07-29 1996-02-01 Hoechst Ag Mischungen von Alkoxylaten als schaumdämpfendes Mittel und deren Verwendung
JP2983884B2 (ja) * 1995-05-19 1999-11-29 日本ペイント株式会社 アルカリ脱脂洗浄方法
AU709865B2 (en) * 1995-07-17 1999-09-09 Henkel Corporation The use of alkoxylated alcohols to control foaming of alkyl polyglycosides in cleaning compositions
US6106633A (en) * 1996-04-09 2000-08-22 Diversey Lever, Inc. Method of preventing damage to bottle labels and composition thereof
WO1997038079A1 (fr) * 1996-04-09 1997-10-16 Unilever N.V. Solution servant a laver une bouteille sans provoquer d'attaque chimique
DE19621843A1 (de) * 1996-05-30 1997-12-04 Basf Ag Blockförmige iso-Tridecanolalkoxylate als schaumarme oder schaumdämpfende Tenside
US6133218A (en) * 1997-07-29 2000-10-17 Basf Corporation Aqueous based solvent free cleaner compositions containing two nonionic surfactants
US6534550B1 (en) * 2000-03-29 2003-03-18 Gerald C. Walterick, Jr. Foam control composition and method for controlling foam in aqueous systems
ATE493374T1 (de) 2002-04-26 2011-01-15 Basf Se Alkoxylatgemische und diese enthaltende waschmittel
CA2671752A1 (fr) * 2006-12-14 2008-06-19 Basf Se Emulsifiants non ioniques pour l'emulsification spontanee d'emulsions concentrees
CN101578130A (zh) * 2007-01-11 2009-11-11 陶氏环球技术公司 烷氧基化物混合物表面活性剂
BRPI0917973A2 (pt) 2008-08-11 2015-11-17 Basf Se processo para o pós-tratamento de materiais têxteis tingidos e/ ou impressos.
CN101530759B (zh) * 2009-03-11 2011-02-09 南京四新科技应用研究所有限公司 一种分散高级脂肪醇混合物的方法
JP5402789B2 (ja) * 2010-03-31 2014-01-29 ダイキン工業株式会社 フルオロポリマー水性分散液
EP2963100B1 (fr) * 2014-07-04 2018-09-19 Kolb Distribution Ltd. Compositions aqueuses de rinçage
CN107073482A (zh) 2014-09-18 2017-08-18 阿克苏诺贝尔化学品国际有限公司 支化醇及其烷氧基化物作为二级捕集剂的用途
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Cited By (1)

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Publication number Priority date Publication date Assignee Title
WO2022234523A1 (fr) * 2021-05-05 2022-11-10 Sabic Global Technologies B.V. Procédé pour l'éthoxylation d'un mélange d'alcool gras à chaîne droite et d'alcool gras à chaîne ramifiée dans une réaction en une seule étape

Also Published As

Publication number Publication date
WO1992014808A1 (fr) 1992-09-03
CA2104468A1 (fr) 1992-08-23
US5536884A (en) 1996-07-16
EP0572453B1 (fr) 1995-08-30
DE4105602A1 (de) 1992-08-27
DK0572453T3 (da) 1995-09-18
JPH06505044A (ja) 1994-06-09
DE59203477D1 (de) 1995-10-05
ATE127150T1 (de) 1995-09-15

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