EP0231886B2 - Use of ethoxylated fatty amines as solubilizers - Google Patents

Abstract

The invention relates to the use of one or more ethoxylated fatty amines corresponding to the following general formula <IMAGE> (I) in which n is an integer of from 2 to 30, R1 is a C8-24 straight-chain or branched-chain, saturated or unsaturated alkyl, and R2 has the formula -(CH2-CH2-O)m-H (II) or the formula <IMAGE> (III) where R3 is a C2-6 alkylene, and m, x, and y are each an integer of from 0 to 30, as solution promoters in detergent concentrates for detergent solutions.

Description

The invention relates to the use of ethoxylated fatty amines as solubilizers or solubilizers in cleaner concentrates for detergent solutions for bottle cleaning.

Generally, substances can. which are sparingly soluble or insoluble in water are thereby brought into solution. that so-called solubilizers or solubilizers are added to the aqueous solutions. The solution-mediating effect of such additives is based in many cases on the fact that the molecules of the substance added as a solubilizer have a surfactant-like structure, that is to say they have a hydrophilic and a hydrophobic part of the molecule. The solubilizer molecules form micelles in aqueous solutions. in which the hydrophilic ends of the molecules are directed outwards towards the water and the hydrophobic ends of the molecules are directed towards the inside of the micelles. Substances that are insoluble in the aqueous phase are incorporated into the interior of the micelles during solubilization and thus appear to be dissolved in the aqueous phase. The amount of solubilizer. which is necessary to obtain a clear solution. is not just about the amount of substance to be dissolved. but also depends on the solubilizing ability of the solubilizer.

When cleaning beverage bottles, sticky dirt is removed from the inside of the bottle to enable a hygienic refilling of the bottle. The shelf life of the bottled beverage depends, among other things, on the completeness of the learning of mechanical, biological or microbiological contamination.

In addition, the bottles are usually re-labeled when refilled. Therefore it is necessary. In addition to external contamination, labels and glue residues must also be completely removed, thereby creating the prerequisites for labeling (which is now mandatory under food law).

In the cleaning of bottles intended for the beverage industry, in most cases alkaline cleaning agent solutions with a large number of components are used which, in addition to larger amounts of alkali metal hydroxides, for example 1 to 2%, in particular sodium hydroxide, also contain other components. the quality and quantity of which is tailored to the specific cleaning problem. According to the current state of the art, the cleaning agent solutions are produced in the corresponding cleaning systems by adding a cleaning concentrate, which contains all the necessary additives for problem-free cleaning, to the process water and then adding sodium hydroxide. In addition to readily water-soluble additives, such as inorganic salts and inorganic and organic acids, most detergent concentrates also contain poorly water-soluble components that separate from the liquid detergent concentrates when stored for longer periods under unfavorable storage conditions, thereby preventing the detergent from being fully effective in the application solutions. Such components are, in particular, the network minerals and anti-foaming agents contained in the cleaner concentrates, the absence of which in the cleaning solution leads to an improper functioning of the cleaning system and thus to unacceptable failures. Such failures are e.g. caused by a foaming of the system or by unreleased labels. To such. To keep poorly water-soluble cleaner constituents in solution, larger amounts of sodium cumene sulfonate have hitherto been added to the cleaner concentrates. that acted as a solubilizer and also kept poorly soluble cleaner components in solution. Although it was possible to stabilize the cleaner concentrates with sodium cumene sulfonate, the use of this compound as a solubilizer has clear disadvantages. On the one hand, cleaner concentrates containing sodium cumene sulfonate become significantly more expensive due to the high price of the solubilizer when large amounts are used. some cleaner concentrates contain up to 25% of this substance - so that for economic reasons alone there is a need for a cheaper one. effective connection as a solubilizer. It is also known that, in particular in the cleaning of beverage bottles, sodium cumene sulfonate as a detergent component has no further favorable effects on the cleaning ability of the cleaning or application solutions. Its only function is therefore to keep other poorly soluble components contained in the cleaner concentrate stably dissolved in the aqueous solution.

As a solubilizer from the prior art are also lower. mostly branched alcohols. for example isopropanol. known. However, the disadvantage of this is that its handling requires special protective measures, since isopropanol is not only easily combustible. but also has a low flash point. In addition, its effect as a solubilizer is significantly worse than that of sodium cumene sulfonate.

The object of the present invention was to provide new solubilizers or solubilizers. which also bring poorly soluble components of the detergent concentrate into solution in a stable manner and thus ensure unlimited storage stability of detergent concentrates which comprise components which contain highly hydrophobic groups. Since the stability of such solutions is also jeopardized at higher temperatures, as can sometimes occur in storage rooms, the cleaning concentrate was stabilized required for temperatures below freezing as well as for temperatures up to 50 ° C for an unlimited time. In addition, the solubilizers provided should be inexpensively accessible and, in addition to having a stabilizing effect on the cleaner concentrates, should also take on other tasks in the cleaning process. The primary aim was to accelerate the detachment of bottle labels, faster and better removal of contaminating residues as well as better emulsification of the detached dirt residues in the cleaning solution after use.

in der

• n für eine ganze Zahl von 2 bis 30.
• R¹ für einen geradkettigen oder verzweigten, gesättigten oder ungesättigten Alkylrest mit 8 bis 24 C-Atomen und
• _R2 für eine Gruppe
  
  oder eine Gruppe
  
  steht, wobei
• R³ einen Alkylenrest mit 2 bis 6 C-Atomen.
• m, x und y jeweils eine ganze Zahl von 0 bis 30 bedeuten.

als Lösungsvermittler in Reinigerkonzentraten für Reinigungsmittellösungen zur Flaschenreinigung, wobei die ethoxylierten Fettamine in Mengen von 1 bis 15Gew.-%, bezogen auf die Gesamtzusammensetzung der Konzentrate, eingesetzt werden.The invention relates to the use of one or more ethoxylated fatty amines of the general formula (I)

in the

• n for an integer from 2 to 30.
• R ^{1 is} a straight-chain or branched, saturated or unsaturated alkyl radical having 8 to 24 carbon atoms and
• _R 2 for a group
  
  or a group
  
  stands, where
• R ^{3 is} an alkylene radical having 2 to 6 carbon atoms.
• m, x and y each represent an integer from 0 to 30.

as a solubilizer in cleaner concentrates for detergent solutions for bottle cleaning, the ethoxylated fatty amines being used in amounts of 1 to 15% by weight, based on the total composition of the concentrates.

• -(CH₂-CH₂-0)_m-H

steht. Dabei sind ethoxylierte Fettamine des genannten Typs mit gesättigten Alkylresten R¹ genauso gut geeignet wie solche mit ungesättigten Alkylresten R¹. Der bevorzugte Bereich der Kettenlänge für den Alkylrest R^l liegt bei 12 bis 18 C-Atomen. Fettamine dieses Typs sind aus nativen Quellen nach an sich bekannten Verfahren herstellbar. Sie können entweder einzeln oder in den in der Natur vorkommenden Gemischen mit Alkylresten unterschiedlicher Kettenlänge für die Ethoxylierung eingesetzt und als ethoxylierte Produkte erfindungsgemäß verwendet werden.According to the invention, ethoxylated fatty amines of the general formula (I) can be used, in which R ¹ for a straight-chain or branched alkyl radical having 8 to 24 C atoms and R ² for a group

• - (CH ₂ -CH ₂ -0) _m -H

stands. Here, ethoxylated fatty amines of the type mentioned with saturated alkyl radicals R ^{1 are} just as suitable as those with unsaturated alkyl radicals R ¹ . The preferred range of chain length for the alkyl radical R ¹ is 12 to 18 carbon atoms. Fatty amines of this type can be produced from native sources by methods known per se. They can be used either individually or in the naturally occurring mixtures with alkyl radicals of different chain lengths for the ethoxylation and can be used according to the invention as ethoxylated products.

The ethoxylation reaction is also known as such and is carried out on the fatty amines which are preferably obtainable from native sources in a manner known per se. In practice, this also produces mixtures with a different number (n + m) of ethoxy radicals. Compounds are preferred according to the invention. in which the average degree of ethoxylation (n + m) is in the range from 2 to 15. Ethoxylated fatty amines with an average degree of ethoxylation (n + m) in the range from 10 to 15 are particularly preferred.

steht. wobei R³ einen Alkylenrest mit 2 bis 6 C-Atomen und x bzw. yjeweils eine ganze Zahl von 0 bis 30 bedeuten. Unter "Alkylenrest" werden hierbei Alkylreste verstanden. die an den endständigen C-Atomen jeweils freie Valenzen aufweisen (auch "Polymethylenreste" genannt).According to the invention, it is also possible to use ethoxylated diamines of the general formula (I) in active ingredient concentrates for cleaners. In the R ² for a group

stands. where R ^{3 is} an alkylene radical having 2 to 6 carbon atoms and x or y are in each case an integer from 0 to 30. “Alkylene radical” is understood to mean alkyl radicals. which each have free valences at the terminal C atoms (also called "polymethylene residues").

Such diamines preferably have a degree of ethoxylation in the range from 2 to 15, particularly preferably in the range from 10 to 15. in this case the total number of ethoxy groups is meant. This means that in the general formula (I) the sum (n + x + y) is in the range from 2 to 15 or preferably from 10 to 15.

As stated above, preferred fatty amines are accessible from natural sources, for example from natural fats and oils, and can be used for the ethoxylation either directly from the native sources or after further chemical processing, for example hydrogenation of unsaturated side chains. These are in particular coconut amine, tallow fatty amine, oleyl amine, octadecyl amine, tallow fatty oleyl amine, stearyl amine and, as diamine, tallow fat propylene diamine. The average degree of ethoxylation is preferably in the range between 2 and 15. It is essentially dependent on the consistency and water solubility of the ethoxylated fatty amines obtained, pasty or even solid products being less preferred owing to their poorer incorporation into liquid concentrates and the more ethoxylated fatty amines being preferred their poorer water solubility are also less preferred. With increasing degree of ethoxylation, however, the fatty amine ethoxylates are less prone to foaming.

The amount of the ethoxylated fatty amines of the general formula (I) used according to the invention is in the range from 1 to 15% by weight of one or more fatty amines, based on the total weight of the cleaner concentrate, with several fatty amines together not exceeding the concentration value of 15%.

The advantage of using one or more ethoxylated fatty amines of the general formula (I) given above in comparison with compounds known from the prior art and used for the same purposes is to be seen therein. that the ethoxylated fatty amines mentioned after simple. are inexpensive to carry out in inexpensive starting materials in large-scale industrial processes conveniently and with high yields. Their effect in aqueous cleaner concentrates is not only limited to the solubilizing function. Rather, when the ethoxylated fatty amines of the general formula (I) are used according to the invention, it is also observed that the labels on beverage bottles peel off at a higher rate. In addition, residues in the beverage bottles, in particular larger mold areas or other contaminants, are removed more quickly and completely, which enables the use of the compounds mentioned in systems for large-scale bottle cleaning. The low foaming tendency of the connections is also advantageous in this context.

Another advantage of using the ethoxylated fatty amines of the general formula (I), if desired together with others. Compounds known as solubilizers, such as isopropanol, can be seen in the fact that the aluminum labels on the bottle necks of certain beverage bottles are also more easily removed and also color pigments which detach from the surface of the removed labels. be emulsified in the cleaning solution and do not float on the surface of the solution.

The solubilizing effect of the ethoxylated fatty amines mentioned is noticeable in that the cleaner concentrates containing a large number of detergent components are stable for an unlimited time at high (50 ° C.) and low (-18 ° C.) temperatures. When the ethoxylated fatty amines are used as solubilizers according to the invention, a clear product is obtained after freezing the cleaner concentrates and thawing them, in which the organic components such as wetting agents and anti-foaming agents also remain clearly dissolved.

In addition to the ethoxylated fatty amines, the cleaner concentrates also contain further cleaner components are produced by methods known per se. whereby the individual components are mixed together in any order. However, the aqueous solution of the ethoxylated fatty amine of the general formula (I), which is effective as a solubilizer, is advantageously introduced, and the further cleaner components are then added. The pH of the cleaner concentrates is adjusted to a range from 1 to 7.

When used in large-scale cleaning of beverage bottles, they are used as concentrates treated aqueous detergent compositions added to the process water of the bottle cleaning machine in concentrations. which depend on the degree of soiling of the bottles to be cleaned and the water hardness as well as any other parameters. As a rule, the cleaner concentration in the process solutions is in the range of 0.1 to 0.5% by weight. However, higher concentrations are also conceivable. especially then. if the hardness of the process water or the high degree of contamination of the bottles require a higher concentration of one of the detergent components. Concentrations are also conceivable for other applications. which are below 0.1% by weight or above 0.5% by weight, based on the application solution.

The process or cleaning solutions are then alkali metal hydroxides, preferably sodium hydroxide. usually added separately. In automatic bottle cleaning, the sodium hydroxide concentrations in the process solutions are usually in the range of 1 to 3%.

In principle, however, it is also possible. directly add the amounts of sodium hydroxide required for cleaning to the cleaning concentrates which contain the ethoxylated fatty amines according to the invention.

The invention is illustrated by the following examples.

1. Production of the cleaner concentrates

Cleaner concentrates of the composition given in Examples 1 to 4 and in the comparative examples were prepared by methods known per se. In each case, the water and the ethoxylated fatty amine, or the corresponding comparative compound, acting as solubilizer, were initially introduced and the remaining detergent components were added successively.

• EO = Ethylenoxid. PO = Propylenoxid.

In the given recipe examples:

• EO = ethylene oxide. PO = propylene oxide.

2. Assessment of the stability of the cleaner concentrate

• (a) unmittelbar nach der Herstellung.
• (b) mehrmals wöchentlich bis über 1 Jahr Lagerung bei 5°C und 50°C sowie
• (c) nach Einfrieren und Wiederauftauen optisch beurteilt. In allen Fällen waren die Reinigerkonzentrate klar. Es konnte keine Bildung unterschiedlicher Phasen festgestellt werden.

The cleaner concentrates prepared according to (1) were

• (a) immediately after manufacture.
• (b) several times a week up to over 1 year storage at 5 ° C and 50 ° C as well
• (c) optically assessed after freezing and thawing. In all cases, the cleaner concentrates were clear. No formation of different phases could be determined.

3. Label peeling

Extensive detachment tests with labels on beverage bottles were carried out on a laboratory scale. The time was measured. during which the bottles must be in contact with the cleaning solution. to achieve a complete detachment of all labels attached to the bottles. The detachment times for the respective tests in minutes or seconds are given in Example 1, Table 1 and Example 5, respectively.

The ability of the corresponding cleaning solutions was also tested in this context. effect the discharge of the labels from the cleaning solution in a satisfactory manner.

The labels may be used during the test period, i.e. until it is completely detached from the surface of the bottle, do not fray and after removal from the cleaning solution no signs of being drawn up. i.e. have adsorbed surfactants.

4. Cleaning of heavily contaminated bottles

On a laboratory scale, cleaning experiments on bottles were dried at 75 ° C. stuck fruit table residues (tomato pulp) and carried out on bottles with Schi mmelrasen. Here too, cleaner concentrates were found to contain the ethoxylated fatty amines according to the invention. superior to the usual products of the state of the art.

5. Detachment of aluminum bottle neck foils

Laboratory tests were also carried out on bottles with aluminum foils on the bottle neck below the opening. The peeling times are given in Example 1, Table 2.

6. Energy saving

Cleaning processes for beverage bottles often require high temperatures of the wash liquor if the bottles are very dirty or have adhesive labels on the outer surface. This causes high costs for the generation of steam or the heating of the cleaning solution. In addition, with high alkalinity of the cleaning water, large amounts of fresh water are required to rinse the bottles alkali-free after the cleaning process. The previously heated bottles are also cooled back to a lower temperature. High cleaning liquor temperatures also result in higher intermediate spray and hot water temperatures. which in turn leads to increased stone formation in these zones of the car wash. With improved detachment by components contained in the cleaning solutions, energy for generating hot water or steam and also fresh water for bottle cleaning are therefore saved. The detachment times for labels at different process temperatures are also given for the individual cleaner formulations (cf. Example 1, Table 1 and Example 5, Table 3).

7. Foaming behavior

The foaming behavior was assessed in accordance with DIN draft 53902. For this purpose, the cleaning liquors containing a fatty amine ethoxylate were examined in the foam blow apparatus according to Götte (DIN 53902, part 1). Increasing amounts of a test foam (P3 ^R optenite) were added to the bases and the foam amounts were measured after 5 times 100 beats. The values determined here are shown in Table 4 in Example 6.

The lower the amount of foam, the better the foam-inhibiting effect of the cleaner concentrate. Foam disturbs the cleaning process in bottle cleaning extremely.

example 1

• 31.75 % Kondenswasser.
• 0.25 % Kaliumiodid,
• 10,00 % Phosphorsäure (75 %ig).
• 10.00 % Gluconsäure (50 %ig).
• 6,00 % Aminotris(methylenphosphonsäure) (50 %ig),
• 2.00 % 1-Hydroxyethan-1.1-diphosphonsäure (60 %ig),
• 3.00 % 2-Phosphono-butan-1.2.4-tricarbonsäure (50 %ig),
• 2.00 % Addukt von Nonylphenol an 9.5 mol EO,
• 13.00 % Addukt von Ethylendiamin an 30 mol EO und 60 mol PO,
• 11,00 % Addukt von Propylenglykol an 4.5 mol EO und 29,8 mol PO und
• 11,00 % Addukt von Kokosamin an 12 mol EO.

A cleaner concentrate for use in accordance with the invention was produced by mixing the following components together (all percentages in% by weight):

• 31.75% condensed water.
• 0.25% potassium iodide,
• 10.00% phosphoric acid (75%).
• 10.00% gluconic acid (50%).
• 6.00% aminotris (methylenephosphonic acid) (50%),
• 2.00% 1-hydroxyethane-1,1-diphosphonic acid (60%),
• 3.00% 2-phosphonobutane-1.2.4-tricarboxylic acid (50%),
• 2.00% adduct of nonylphenol with 9.5 mol EO,
• 13.00% adduct of ethylenediamine with 30 mol EO and 60 mol PO,
• 11.00% adduct of propylene glycol with 4.5 mol EO and 29.8 mol PO and
• 11.00% adduct of coconut amine with 12 mol EO.

Assessment of stability

This cleaner concentrate was clear and therefore stable over the entire temperature range tested; phase separation was not observed. In the absence of the addition product of coconut amine and 12 mol EO, no clear result was obtained. storage stable product.

Eti chain detachment

Label detachment tests were carried out on different beverage bottles, all of which were provided with Chromalux ^R labels. Detergent solutions were applied to the various bottles, which had a NaOH content of 1.5% by weight and a detergent active ingredient content of 0.2% by weight.

The peeling times for the different test conditions and bottle types are given in Table 1 below. For comparison, cleaner solutions were used which contained 1.5% by weight of NaOH and 0.2% by weight of active ingredient concentrate of the concentrate compositions given in the following comparative examples 1 and 2 using sodium cumene sulfonate or isopropanol as solubilizer.

• 1)Flaschenmaterial:
  • A: 1-1-Flaschen Apfelsaft, Fanta^R, c_appy^R, _Sp_rit_e ^R
  • B: 1-1-Flaschen Lift^R-Zitrone, _Sp_rit_e ^R, _Fant_a ^R
  • C: 1-1-Flaschen Spriter
  • D: 1-1-Flaschen Coca-Cola^R
  • E: 1-1-Flaschen Coca-Cola^R light
  • F: 0,5-1-Flaschen Coca-Cola^R

Remarks:

• 1) Bottle material:
  • A: 1-1 bottles of apple juice, Fanta ^R , c _a ppy ^R , _S p _r it _e ^R
  • B: 1-1-bottle of Lift ^R- Lemon, _{S ri} t _e ^R , _F ant _a ^R
  • C: 1-1 bottle of Spriter
  • D: 1-1 bottles of Coca-Cola ^R
  • E: 1-1 bottles of Coca-Cola ^R light
  • F: 0.5-1 bottles of Coca-Cola ^R

Result:

As can be seen from the values in Table 1, labels can be removed under comparable conditions with the cleaning solutions used according to the invention much better and faster than with cleaning solutions from the prior art.

Comparative example 1

• 29,25 % Kondenswasser,
• 0,25 % Kaliumiodid,
• 10,00 % Phosphorsäure (75),
• 10,00 % Gluconsäure (50 %ig),
• 6,00 % Aminotris(methylenphosphonsäure) (50 %ig),
• 2,00 % 1-Hydroxyethan-1,1-diphosphonsäure (60 %ig),
• 3,00 % 2-Phosphono-butan-1.2.4-tricarbonsäure (50 %ig),
• 2,00 % Addukt von Nonylphenol an 9,5 mol EO.
• 5,00 % Addukt von Ethylendiamin an 30 mol EO und 60 mol PO,
• 0,50 % Addukt von Cetyl-Oleyl-Fettalkohol (OcenoI^R) an 2 mol EO,
• 8,00 % Addukt von Ethylendiamin an 8 mol EO und 52 mol PO,
• 24,00 % Natriumcumolsulfonat (40 %ig).

In a manner analogous to that in Example 1, a cleaner concentrate was prepared by mixing the following components together (all data in% by weight):

• 29.25% condensed water,
• 0.25% potassium iodide,
• 10.00% phosphoric acid (75),
• 10.00% gluconic acid (50%),
• 6.00% aminotris (methylenephosphonic acid) (50%),
• 2.00% 1-hydroxyethane-1,1-diphosphonic acid (60%),
• 3.00% 2-phosphonobutane-1.2.4-tricarboxylic acid (50%),
• 2.00% adduct of nonylphenol with 9.5 mol EO.
• 5.00% adduct of ethylenediamine with 30 mol EO and 60 mol PO,
• 0.50% adduct of cetyl-oleyl fatty alcohol (OcenoI ^R ) with 2 mol EO,
• 8.00% adduct of ethylenediamine with 8 mol EO and 52 mol PO,
• 24.00% sodium cumene sulfonate (40%).

A cleaning solution was prepared from this in accordance with the procedure outlined in Example 1, in which the amount of active compound was 0.2% and which additionally contained 1.5% by weight of NaOH. The peel-off times in the label peel test are shown in Table 1 above.

Comparative Example 2

• 11,25 % Kondenswasser,
• 0,25 % Kaliumiodid,
• 40,00 % Phosphorsäure, 75 %ig,
• 12,00 % Aminotris(methylenphosphonsäure), 50 %ig,
• 5,00 % 2-Phosphonobutan-1,2,4-tricarbonsäure, 50 %ig,
• 5.00 % 1-Hydroxyethan-1-1-diphosphonsäure, 60 %ig,
• 6,50 % Isopropanol, 80 %ig,
• 19,00 % C₁₂-₁₈-Fettalkohol (LoroI^R)-9,1 mol EO-butylether,
• 1,00 % Addukt von Cetyl-Oleyl-Fettalkohol (OcenoI^R) an 2 mol EO.

A cleaner concentrate was prepared from the components specified below in a manner corresponding to the preparation in Example 1. which was added in an amount of 0.2% concentrate to a cleaning solution for an automatic bottle washer which contained 1.5% by weight of NaOH.

• 11.25% condensed water,
• 0.25% potassium iodide,
• 40.00% phosphoric acid, 75%,
• 12.00% aminotris (methylenephosphonic acid), 50%,
• 5.00% 2-phosphonobutane-1,2,4-tricarboxylic acid, 50%,
• 5.00% 1-hydroxyethane-1-1-diphosphonic acid, 60%,
• 6.50% isopropanol, 80%,
• 19.00% C _12-18 fatty alcohol (LoroI ^R) -9.1 mol EO-butyl ether,
• 1.00% adduct of cetyl-oleyl fatty alcohol (OcenoI ^R ) with 2 mol EO.

The detachment times achieved with a detergent solution containing this concentrate in the label detachment test are also shown in Table 1 above.

Dissolution of aluminum bottle neck foils

The cleaning concentrates given in Example 1 and in Comparative Examples 1 and 2 were used in each case to prepare cleaning solutions (0.2% cleaning concentrate and 1.5% sodium hydroxide) and the duration of the dissolution of aluminum bottle-neck foils was determined (test conditions: water 0 ° d, temperature 75) ° C).

The comparison shows that even in this case the use of the fatty amines according to the invention in the cleaner concentrate led to shorter dissolution times and thus to a better result.

Examples 2 to 4

• 2.
  • 50,75 % Kondenswasser,
  • 0,25 % Kaliumiodid,
  • 25,00 % Phosphorsäure (75 %ig),
  • 2,00 % 1-Hydroxyethan-1.1-diphosphonsäure (60 %ig),
  • 1,00 % Amino(trimethylenphosphonsäure) (50 %ig),
  • 1,00 % 2-Phosphonobutan-1.2.4-tricarbonsäure (50 %ig),
  • 16,00 % C₁₂-₁₈-Fettalkohol (LoroI^R)-9.1 mol EO-butylether;
  • 1,00 % eines Adduktes von Fettalkohol an 2 mol EO und
  • 3,00 % Addukt von Kokosamin an 12 mol EO.
• 3.
  • 38 % Kondenswasser,
  • 22 % 2-Phosphonobutan-1.2.4-dicarbonsäure (50 %ig),
  • 22 % C_12-18 -Fettalkohol (LoroI^R)-9.1 mol EO-butylether,
  • 15 % Isopropanol (80 %ig) und
  • 3 % Addukt von Kokosamin an 12 mol EO.
  • Hierbei handelt es sich um ein phosphatfreies Reinigerkonzentrat.
• 4.
  • 31.75 % Kondenswasser,
  • 0,25 % Kaliumiodid,
  • 10,00 % Phosphorsäure (75 %ig),
  • 10,00 % Gluconsäure (50 %ig),
  • 6,00 % Aminotris(methylenphosphonsäure) (50 %ig),
  • 2,00 % 1-Hydroxyethan-1.1-diphosphonsäure,
  • 3,00 % 2-Phosphonobutan-1.2.4-tricarbonsäure (50 %ig),
  • 2,00 % Addukt von Nonylphenol an 9,5 mol EO,
  • 13,00 % Addukt von Ethylendiamin an 30 mol EO und 60 mol PO,
  • 11,00 % Addukt von 1,2-Propylenglykol an 4,5 mol EO und 29,8 mol PO und
  • 11,00 % Addukt von Kokosamin an 12 mol EO.

In accordance with the production method given in Example 1, cleaner concentrates were produced in accordance with the following recipes:

• 2nd
  • 50.75% condensed water,
  • 0.25% potassium iodide,
  • 25.00% phosphoric acid (75%),
  • 2.00% 1-hydroxyethane-1.1-diphosphonic acid (60%),
  • 1.00% amino (trimethylenephosphonic acid) (50%),
  • 1.00% 2-phosphonobutane-1.2.4-tricarboxylic acid (50%),
  • 16.00% C _12-18 fatty alcohol (LoroI ^R) -9.1 mol EO-butyl ether;
  • 1.00% of an adduct of fatty alcohol with 2 mol EO and
  • 3.00% adduct of coconut amine with 12 mol EO.
• 3rd
  • 38% condensed water,
  • 22% 2-phosphonobutane-1.2.4-dicarboxylic acid (50%),
  • 22% C _12-18 fatty alcohol (LoroI ^R ) -9.1 mol EO-butyl ether,
  • 15% isopropanol (80%) and
  • 3% adduct of coconut amine with 12 mol EO.
  • This is a phosphate-free cleaner concentrate.
• 4th
  • 31.75% condensed water,
  • 0.25% potassium iodide,
  • 10.00% phosphoric acid (75%),
  • 10.00% gluconic acid (50%),
  • 6.00% aminotris (methylenephosphonic acid) (50%),
  • 2.00% 1-hydroxyethane-1.1-diphosphonic acid,
  • 3.00% 2-phosphonobutane-1.2.4-tricarboxylic acid (50%),
  • 2.00% adduct of nonylphenol with 9.5 mol EO,
  • 13.00% adduct of ethylenediamine with 30 mol EO and 60 mol PO,
  • 11.00% adduct of 1,2-propylene glycol with 4.5 mol EO and 29.8 mol PO and
  • 11.00% adduct of coconut amine with 12 mol EO.

The cleaner concentrates were clear immediately after they were made and showed no separation of individual components. The solutions remained clear even after prolonged storage (3 months to 1 year) at 5 ° C and at 50 ° C and did not change optically after they had been frozen and thawed.

Example 5

• 10,0 % Phosphorsäure (75 %ig)
• 10,0 % Gluconsäure (50 %ig)
• 6,0 % Aminotris(methylenphosphonsäure) (50 %ig)
• 2,0 % 1-Hydroxyethan-1,1-diphosphonsäure (60 %ig)
• 3,0 % 2-Phosphonobutan-1,2,4-tricarbonsäure (50 %ig)
• 2,0 % Addukt von Nonylphenol an 9,5 mol EO
• 13,0 % Addukt von Ethylendiamin an 30 mol EO und 60 mol PO
• 0,5 % Kaliumiodid
• 11,0 % Addukt von Propylenglykol an 4,5 mol EO und 29,8 mol PO
• 31,5 % Wasser
• 11,0 % Fettaminethoxylat gemäß Tabelle 3.

Active substance concentrates of the following composition were produced with the individual fatty amine ethoxylates:

• 10.0% phosphoric acid (75%)
• 10.0% gluconic acid (50%)
• 6.0% aminotris (methylenephosphonic acid) (50%)
• 2.0% 1-hydroxyethane-1,1-diphosphonic acid (60%)
• 3.0% 2-phosphonobutane-1,2,4-tricarboxylic acid (50%)
• 2.0% adduct of nonylphenol with 9.5 mol EO
• 13.0% adduct of ethylenediamine with 30 mol EO and 60 mol PO
• 0.5% potassium iodide
• 11.0% adduct of propylene glycol with 4.5 mol EO and 29.8 mol PO
• 31.5% water
• 11.0% fatty amine ethoxylate according to Table 3.

• Etikettensorte: Sprite^R (Chromalux)
• Etikettenleim: OptaI^R 350

The label detachment tests were carried out with hand-labeled bottles.

• Label type: Sprite ^R (Chromalux)
• Label glue: OptaI ^R 350

• 1.5 % NaOH
• 0,2 % Wirkstoffkonzentrat
• Wasser 0 ° d
• 70 °C

The experimental procedure and the equipment are the publication "On the question of label detachment from beverage bottles, part 11". Brauwelt 120 (1980) No. 41. Pp. 1492 to 1499. Alkali composition:

• 1.5% NaOH
• 0.2% active ingredient concentrate
• Water 0 ° d
• 70 ° C

The peeling times are shown in Table 3 below.

Example 6 Foaming behavior

• 1,5 % NaOH
• 0.2 % Reinigerkonzentrat mit dem jeweilig angegebenen ethoxylierten Fettamin
• Rest: Wasser (0° dH)
• Prüftemperatur: 65°C

As you can read above. cleaning solutions containing ethoxylated fatty amines in different concentrations were checked for their foaming behavior. The test foam used was p3 ^r optenite. The bases had the following composition:

• 1.5% NaOH
• 0.2% cleaner concentrate with the specified ethoxylated fatty amine
• Rest: water (0 ° dH)
• Test temperature: 65 ° C

The results are shown in Table 4 below.

Claims (2)

1. The use of one or more ethoxylated fatty amines corresponding to general formula (I):

in which

n is an integer of from 2 to 30,

R¹ represents a straight-chain or branched-chain, saturated or unsaturated alkyl radical containing from 8 to 24 carbon atoms,

R² represents a group of the formula

or a group of the formula

where R³ is an alkylene radical containing from 2 to 6 carbon atoms and

m, x and y are each an integer of from 0 to 30,

as solubilizers in detergent concentrates for detergent solutions for washing bottles, the ethoxylated fatty amines being used in quantities of 1 to 15% by weight, based on the total composition of the concentrates.

2. The use of one or more ethoxylated fatty amines corresponding to general formula (I) as claimed in claim 1, the sums (n + m) and (n + x + y) being in the range of from 10 to 15.