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
  • C11D1/38—Cationic compounds
  • C11D1/42—Amino alcohols or amino ethers
  • C11D1/44—Ethers of polyoxyalkylenes with amino alcohols; Condensation products of epoxyalkanes with amines

Definitions

• the invention relates to the use of ethoxylated fatty amines as solubilizers or solubilizers in active ingredient or cleaner concentrates for cleaning agent solutions, in particular in cleaner concentrates for automatic bottle cleaning.
• solubilizer In the aqueous phase, insoluble substances are solubilized in the interior of the Micelles incorporated and thus apparently dissolved in the aqueous phase.
• the amount of solubilizer required to obtain a clear solution depends not only on the amount of substance to be dissolved, but also on the solubilizing ability of the solubilizer.
• any dirt that is stuck inside the bottle is removed to enable the bottle to be refilled hygienically.
• the shelf life of the bottled beverage depends, among other things, on the completeness of the removal of mechanical, biological or microbiological contamination.
• bottles are usually re-labeled when refilled. It is therefore necessary to completely remove not only external soiling but also labels and glue residues, thus creating the prerequisites for labeling (now mandatory under food law).
• alkaline cleaning agent solutions with a large number of components which, in addition to larger amounts of alkali metal hydroxides, for example 1 to 2 % , in particular sodium hydroxide, also contain other components, their quality and Quantity is tailored to the specific cleaning problem.
• the detergent solutions are added to the corresponding cleaning systems by adding a cleaner concentrate that contains all the additives necessary for problem-free cleaning holds, to the process water and by the subsequent addition of sodium hydroxide.
• detergent concentrates 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 over long periods of storage under unfavorable storage conditions, thereby preventing the detergent from being fully effective in the application solutions.
• Such components are, in particular, the wetting agents and anti-foaming agents contained in the cleaner concentrates, the absence of which in the cleaning solution leads to improper functioning of the cleaning system and thus to unacceptable failures. Such failures are caused, for example, by over-foaming the system or also by unreleased labels.
• solubilizers Lower, mostly branched alcohols, for example isopropanol, are also known from the prior art as solubilizers.
• solubilizers are also known from the prior art as solubilizers.
• the disadvantage of this is that its handling requires special protective measures, since isopropanol is not only easily flammable, but also has a low flash point.
• solubilizer is significantly worse than that of sodium cumene sulfonate.
• 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 sometimes occurs in storage rooms, stabilization of the cleaner concentrate was necessary for temperatures below freezing as well as for temperatures up to 50 ° C for an unlimited period of time.
• the solubilizing agent made available should be inexpensive to access and next to a stabilizing effect on the R of some concentrates also other tasks are performed in the cleaning process. First and foremost, an acceleration of the detachment of bottle labels, a faster and better removal of contaminating residues and also better emulsification of the detached dirt residues in the cleaning solution after use.
• 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 2 4 C atoms and R 2 for a group stands.
• 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. According to the invention, preference is given to compounds 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.
• active substance concentrates for cleaners can also use ethoxylated diamines of the general formula (I) in which R 2 is for a group stands, wherein R 3 is an alkylene radical having 2 to 6 carbon atoms and x or y each an integer from 0 to 30 be interpret.
• R 3 is an alkylene radical having 2 to 6 carbon atoms and x or y each an integer from 0 to 30 be interpret.
• Alkylene radical here means alkyl radicals which each have free valences at the terminal C atoms (also called “polymethylene radicals”).
• 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 which 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.
• 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 chemical processing, for example hydrogenation of unsaturated side chains.
• natural sources for example from natural fats and oils
• 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 chemical processing, for example hydrogenation of unsaturated side chains.
• 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.
• 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 solubilizing effect of the ethoxylated fatty amines mentioned is noticeable in that the cleaner concentrates containing a large number of cleaner components are stable for an unlimited time at high (50 ° C.) and low (-18 ° C.) temperatures.
• the ethoxylated fatty amines are used as solubilizers according to the invention, it is even achieved that a clear product is obtained after freezing the cleaner concentrates and thawing, in which the organic components such as wetting agents and anti-foaming agents also remain clearly dissolved.
• the cleaner concentrates which also contain further cleaner components are prepared by methods known per se, the individual components being mixed together in any order.
• 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.
• aqueous cleaning compositions of the product eßwasser z added to the bottle washer in concentrations that depend on the degree of soiling bottles to be cleaned and the water hardness, and optionally further parameters.
• the detergent concentration moves into the processing solutions in the range of 0.1 to 0.5 G ew .-%.
• concentrations are also conceivable, in particular if the hardness of the process water or the high degree of contamination of the bottles make a higher concentration of one of the detergent components necessary.
• concentrations are also conceivable which are below 0.1% by weight or above 0.5% by weight, based on the application solution.
• Alkali metal hydroxides preferably sodium hydroxide
• Alkali metal hydroxides are then generally metered in separately to the process or cleaning solutions.
• the sodium hydroxide concentrations in the process solutions are usually in the range of 1 to 3%.
• cleaner concentrates were used in Examples 1 to 4 and in Comparative examples specified composition prepared.
• the labels may be used during the test period, i.e. until completely detached from the bottle surface, do not fray and after removal from the cleaning solution no signs of being drawn up, i.e. have adsorbed surfactants.
• the foaming behavior was assessed in accordance with DIN draft 53902.
• the cleaning liquors containing a fatty amine ethoxylate were examined in the Götte foam whipping apparatus (DIN 53902, Part 1).
• Increasing amounts of a test foam (P3 optenit) were added to the bases and the amounts of foam were measured after 5 times 100 beats. The values determined here are shown in Table 4 in Example 6.
• a cleaner concentrate for use according to the invention was produced by mixing the following components together (all percentages in% by weight):
• a cleaning solution was prepared from this in accordance with the procedure described in Example 1, in which the amount of active compound was 0.2% and which additionally contained 1.5% by weight of NaOH.
• the A b-dissolving times in the label removal test of the preceding Table 1 are given in.
• a cleaner concentrate was prepared from the components given 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 washing system which contained 1.5% by weight NaOH.
• the cleaner concentrates were clear immediately after their production and showed no separation of individual components.
• the solutions remained even after lä n - g erer storage time (3 months to 1 year) at 5 ° C and 50 ° C clear and visually changed even after they had been frozen and thawed.

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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)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
• Fats And Perfumes (AREA)

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• 1986
  • 1986-02-06 DE DE19863603579 patent/DE3603579A1/de not_active Withdrawn
• 1987
  • 1987-01-29 AT AT87101229T patent/ATE68518T1/de not_active IP Right Cessation
  • 1987-01-29 ES ES87101229T patent/ES2026466T5/es not_active Expired - Lifetime
  • 1987-01-29 EP EP87101229A patent/EP0231886B2/fr not_active Expired - Lifetime
  • 1987-01-29 DE DE8787101229T patent/DE3773688D1/de not_active Expired - Fee Related
  • 1987-02-02 DK DK053187A patent/DK166590B1/da active
  • 1987-02-03 CA CA000528851A patent/CA1323283C/fr not_active Expired - Lifetime
  • 1987-02-06 US US07/012,102 patent/US4803012A/en not_active Expired - Fee Related

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