FR2474526A1 - NEW BIODEGRADABLE DETERGENT COMPOSITIONS - Google Patents

Abstract

THE OBJECT OF THE INVENTION IS NEW BIODEGRADABLE DETERGENT COMPOSITIONS CONTAINING FROM 2 TO 35 PARTS BY WEIGHT OF A POLYGLYCOL ETHER OF A HIGHER ALKYLPHENOL, FROM 5 TO 35 PARTS BY WEIGHT OF AN ALCANOLAMINE AND FROM 0.5 TO 6 PARTS BY WEIGHT OF AN ALKYLPHENOL. A SEQUESTRANT, AND THEIR PREPARATION.

Description

The subject of the present invention is new

biodegradable detergent compositions and their preparation

tion. The invention relates more particularly to biodegradable detergent compositions containing, as active components, A from 2 to 35 parts by weight of a polyglycolic ether of a higher alkylphenol, the alkyl residue of which contains from 8 to 24 carbon atoms, this ether comprising from 5 to 25 ethyleneoxy units, or a mixture of these ethers, B from 5 to 35 parts by weight of an alkanolamine, and C from 0.5 to 6 parts by weight of a cation sequestering agent. The preferred compounds for component A are

  polyglycolic ethers of isooctylphenol, di-

  tert.-butylphenol or nonylphenol commercially available and comprising on average from 8 to 12, in particular 9 or 10 ethyleneoxy units per molecule, or the mixtures

such ethers.

The preferred alkanolamines (component B) are mono-, di- or triethanolamine, in particular the

monoethanolamine or triethanolamine or mixtures thereof.

  The cation sequestering agent C is preferably

an alkali metal gluconate or glucoheptonate, in particular a sodium gluconate or glucoheptonate, or a nitrilocarboxylic acid at least partially in the form of an alkali metal salt, for example nitrilotriacetic acid [N (CH2COOH) 3] or, preferably, ethylene diamine-tretraacetic acid. As alkali metal salts of these nitrilocarboxylic acids, mention may be made of the lithium, potassium or sodium salt, preferably sodium. Other sequestering agents can also be used, for example the alkali metal salts, in particular the sodium salts of a polymer.

  containing carboxy groups, for example homopoly-

mothers of acrylic acid, α-hydroxyacrylic acid, maleic acid, itaconic acid, mesaconic acid, citraconic acid or the copolyneres of such acids or such an acid with one or more unsaturated compounds, for example ethylene, propylene, vinyl alcohol, vinyl ether, vi'nyl acetate, furan, acrolein, acrylamide, methacrylic acid etc. ... The detergent composition of the invention is in the form of an aqueous solution having a pH

  between 11 and 12.5, preferably between 11.5 and 12.5.

  The preferred proportions, determined in% by weight, of the active components A, B and C in the mixture

  (without taking into account the water present) are the following

  components: Component A: from 15 to 70%, in particular from 15 to 50%, Component B: from 15 to 70%, in particular from 20 to 60%,

  Component C: from 1 to 30%, in particular from 3 to 25%.

The detergent composition contains the sum of the three active components A, B and C in a total amount of 15 to 30% by weight, the rest of the composition consisting of water, optionally in mixture

  with other ingredients as described below.

  To prepare the detergent compositions of the invention, the components are added, preferably in the order given above, to demineralized water, then

  stir until the mixture is homogeneous.

As other ingredients, the detergent compositions of the invention may contain, for example: - an alkyl sulfosuccinate, the alkyl residue of which contains

  from 6 to 12 carbon atoms, preferably sulfo-

commercially available isooctyl succinate; - the condensation product of a mixture of saturated and unsaturated alcohols (containing from 16 to 18 atoms of

  carbon) with 10 to 15 moles of ethylene oxide, pre-

ference a mixture of cetyl and oleyl alcohols

ethoxylated on average with 10 to 12 moles of ethylene oxide

  lene; an alkyl ester containing from 2 to 4 carbon atoms of a sulfated unsaturated carboxylic acid containing from 16 to 18 carbon atoms, preferably a sulfated alkyl oleate, the alkyl residue of which contains from 2 to 4 carbon atoms; a higher alcohol containing from 8 to 14 carbon atoms, preferably a branched primary alcohol, for example a commercial mixture of saturated primary nonanols comprising 4 methyl groups, for example tetramethylnonanol; - a water-soluble silicone oil; - a lower alcohol containing from 1 to 4 carbon atoms; - a glycol containing from 2 to 6 carbon atoms, for example hexylene glycol; - a soap, preferably a soft soap; - an organic solvent immiscible with water such as white spirit or a chlorinated hydrocarbon; - a dispersing agent, for example the sodium salt

  an aromatic sulfonic acid, preferably the di-

sodium naphthylmethane disulfonate.

The higher alcohol containing from 8 to 14 carbon atoms and the water-soluble silicone oil are preferably added to components A, B and C when it is desired that the composition forms only little foam

or no foam.

  The ingredients mentioned above can be added in proportions depending on various factors, for example the nature of the products used, the method of cleaning, etc. In general, these ingredients can be present in an amount of up to% by weight. composition (including water); however, the dispersing agent may be present in a higher amount, depending on the use for which a

such composition.

The preferred compositions of the invention are, for example, those containing components A, B and C as specified, as well as from 0 to 5 parts by weight of an alkyl sulfosuccinate, the alkyl residue of which contains from 6 to 12 atoms of carbon, from 0 to 10 parts by weight of a reaction product i of a mixture of alcohols containing from 16 to 18 carbon atoms (containing saturated and unsaturated alcohols) with 10 to 15 moles of ethylene oxide , from 0 to 10 parts by weight of an alkyl ester containing

  from 2 to 4 carbon atoms of an unsaturated carboxylic acid

ture sulfate containing from 16 to 18 carbon atoms, from 0 to 10 parts by weight of a higher alcohol containing from 8 to 14 carbon atoms and from 0 to 2 parts by weight

of a water-soluble silicone oil.

  The detergent composition according to the invention is distinguished by its powerful detergent action. It can for example be used to clean and degrease metals, plastics, plastics,

  glass and ceramics in all industrial branches

  trielles including the food, agricultural, pharmaceutical, automotive, photographic as well as in the nuclear energy sector, for example machines, spare parts, boilers, tanks, autoclaves, molds, instruments, . tools, filter presses and filter cloths. The composition can be used to remove deposits of mineral oils, greases, graphite, blood, albumin, starch derivatives, dust, soot, dyes, etc. It can also be used to clean surfaces such as table tops, hallways, hospital walls, smoking rooms, slaughterhouses, butchers and tunnels. When the new composition is used to clean steel and chromium / nickel steel, it also has an action

  extremely advantageous anti-corrosion.

The composition of the invention is also indicated as a detergent for washing (prewash, washing

main and / or post-wash) of natural cellulose fibers

real or regenerated, dyed or undyed, such as for example cotton, linen, fibranne and viscose, and mixtures of polyesters and cellulosic fibers; it can be used for domestic purposes or for industrial laundries, for example for washing hospital linen, work clothes,

  aprons, combinations etc ... The new composition

tion is suitable for all common washing installations, for example batchwise in drum washing machines and / or continuous in washing tunnels. The detergent composition of the invention can

  also be used for ultrasonic cleaning.

  You can clean ball bearings, pinions,

watches, valves, nozzles, jewelry, crystals

  rate, quartz, medical instruments, glass laboratory devices, electronic circuits etc., with the detergent composition in the presence of an ultrasonic generator. The detergent composition of the invention additionally containing a dispersing agent such

  as specified is particularly suitable for cleaning

age by ultrasound.

For cleaning contaminated objects in full bath, the aqueous detergent composition is advantageously used (containing 15 to 30% of components A, B and C) at a concentration of 1 to 10% by weight in water, depending on the nature of the contamination to be eliminated. For cleaning by applying steam under pressure or by

  wiping, the detergent composition is preferably used

  gente aqueous at a concentration of 5 to 30% by weight in water. As an additive for sandblasting and steam jet installations, the aqueous detergent composition can be used in an undiluted state or at a

  concentration of 5 to 10% by weight in water. As deter-

  washing gent, the composition is used in an amount which can vary according to the nature and the degree of soiling; preferably using the aqueous detergent composition

at a concentration of 1 to 5% by weight.

The following examples illustrate the present invention without in any way limiting its scope. Parts and percentages are by weight and

temperatures are all given in degrees Celsius.

Example 1

700 at room temperature are introduced.

  ties of demineralized water in a reactor. Each component is then added successively in the given order, while stirring the mixture. After the addition of each component, the mixture is continued to agitate until homogeneous before

to add the next component.

110 parts of a commercial nonyphenol polyglycolic ether containing 10 ethyleneoxy units per mole, in the form of a 35% aqueous solution (which corresponds to approximately 40 parts of dry substance), 100 parts of monoethanolamine,

  parts of sodium sodium ethylenediaminetetra-

commercial acetic acid in powder form, commercial isooctyl sulfosuccinate parts

  as an approximately 35% aqueous solution.

  After having stirred the mixture for a period of between 10 minutes and one hour (depending on the amount involved), a detergent composition is obtained

ready to use.

Example 2

The procedure is as described in Example 1, but initially 715 parts of water and 100 parts of a polyglycolic ether solution of nonylphenol (corresponding to 35 parts of dry substance) are used. To the solution of 4 components thus obtained, 20 parts of tetramethylnonanol and 5 parts are added with stirring.

  a water-soluble silicone oil (anti-

commercial foam).

The resulting mixture is continued to stir at 6

  components until homogeneous.

Example 3

  A laboratory device soiled with dried blood, brain residue and albumin, and left for a relatively long period, is placed in an aqueous medium containing 3 to 5% (depending on the degree of soiling) of the composition. of example 1 and this apparatus is left to soak either for 2 to 3 hours at

  800, i.e. for 12 hours at room temperature.

After being rinsed with water, this device can be reused.

Example 4

Glass material, metal parts and plastic equipment soiled with oil or grease can be reused after being allowed to soak in an aqueous bath containing 1 to 5% (depending on the degree of soiling) of the composition of

Example 1.

Example 5

  Laboratory equipment, metal and glass, soiled with old deposits of dried blood and dyes, can be washed at 90 in an automatic laboratory washing machine, using an aqueous medium containing 2 to 50 g / l of the composition of Example 2, without problems

of foam.

Example 6

By proceeding as described in Example 1, a detergent composition is prepared containing, per 1000 parts:

  parts of a mixture of polyglycol ethers of nonyl-

  phenol and isxctylphenol containing 10 ethyleneoxy units per mole,

  40 parts sodium salt of ethylenediamine acid-

commercial tetraacetic (in the form of a powder), and

parts of monoethanolamine.

When the component based on ethylenediaminetetraacetic acid is replaced by sodium gluconate or sodium glucoheptonate, and the monoethanolamine by trietanolamine, a composition is obtained.

  detergent with similar properties.

Example 7

  White hospital linen is washed in a continuous washing tunnel with 18 compartments, according to the counter-current principle. Pre-washing is carried out in compartments 1 to 5, the temperature increasing from 20 to 50. In compartment 1, 6 liters of a solution containing, per 1000 parts, 12 parts of the detergent composition according to Example 6, and 20 g of a commercial suspending agent (powder) are poured, then into compartment 5 another 3 liters of the same detergent solution. The main wash is carried out at 80-95 in compartments 6 to 10. After rinsing at 80-60 in compartments 11 to 15, the laundry is treated in

compartment 16 to 20-30 with a hypochlo- solution

sodium rite (containing 0.85 part of sodium hypochlorite at 30% per 1000 parts of fresh water) and, in compartment 17 to 20, with a solution containing per 1000 parts 0.1 part of hydrogen peroxide at 35 volumes. After neutralization with acetic acid if necessary, the laundry is rinsed in compartment 18 to 15-18 with

hard water.

We thus obtain a perfectly clean white linen

clean.

Example 8

Work clothes made of heavily soiled polyester and cotton are washed in a continuous washing tunnel, proceeding as described in Example 7. The prewash is carried out as described in Example 7, but the solutions

  detergents of 6 liters and 3 liters are added res-

respectively in compartments 1 and 3 and contain, for

1000 parts, from 30 to 50 parts of the composition determined

gente according to Example 6 and 40 to 80 parts of a commercial suspending agent (powder). The main wash is carried out at 80-85 and another 4 liters of the same detergent solution are added to compartment 10. After rinsing at 80-60 in compartments 11 to 17, neutralization if necessary to compartment 17 with

  acetic acid, rinse clothes in the compar-

timent 18 with hard water at 15-18. Clothes

  thus washed are perfectly clean.

Example 9

  By proceeding as described in Example 1, a detergent composition is prepared containing 42.5 parts of the detergent composition of Example 6, 2.5 parts of soft soap, parts of hexylene glycol, and parts of a dispersion of trade based

  a sodium salt of an aromatic sulfonic acid.

Example 10

700 stones or stones are cleaned

contaminated electronic circuits, with a solution containing

1% of the detergent composition of Example 9 per batch

25 kHz ultrasound for 90 seconds.

  EXAMPLE 11 Watch Cases Soiled with Dough Paste Are Treated by Ultrasound for 90 Seconds at -80

polish in a bath containing 4% of the deter-

example 9.

Claims (8)

1.- New biodegradable detergent composition, characterized in that it is in the form of an aqueous solution containing, as active components, A from 2 to 35 parts by weight of a polyglycolic ether of a higher alkylphenol, the alkyl residue contains from 8 to 24 carbon atoms, this ether comprising from 5 to 25 ethyleneoxy units, or a mixture of these ethers, B from 5 to 35 parts by weight of an alkanolamine, and C from 0.5 to 6 parts by weight of a sequestering agent cations. 2. A biodegradable detergent composition according to claim 1, characterized in that it contains, the active components in the following weight proportions, indicated without taking water into account: component A: from 15 to 70% - component B: from 15 to 70% - component C: from 1 to 30% 3.- A biodegradable detergent composition according to any one of claims 1 and 2, character _ risée in that it is in the form of an aqueous solution containing 15 to 30% by weight of the whole active components.   4.- A biodegradable detergent composition according to any one of claims 1 to 3, character-   laughed at in that component A is a polyglycol ether   isooctylphenol, di-tert.-butylphenol or nonylphenol or a mixture of such ethers, component B is mono-, di- or triethanolamine or their mixture, and component C is a gluconate or glucoheptonate alkali metal or ethylenediamine tetraacetic acid at least partially in the form of an alkali metal salt. 1l 5.- A biodegradable detergent composition according to any one of claims 1 to 4, characterized in that it also contains one or more ingredients chosen from: - an alkyl sulfosuccinate in which the alkyl residue contains from 6 to 12 carbon atoms, - the condensation product of a mixture of saturated and unsaturated alcohols containing from 16 to 18 carbon atoms, with 10 to 15 moles of ethylene oxide, - an unsaturated alkyl sulfated carboxylate of which the alkyl residue contains from 2 to 4 carbon atoms, - a higher alcohol containing from 8 to 14 carbon atoms, - a water-soluble silicone oil, - a lower alcohol containing from 1 to 4 carbon atoms, - a glycol containing from 2 to 6 carbon atoms, - a soap, - a non-organic solvent miscible with water, and / or - a dispersing agent.   6) A biodegradable detergent composition according to claim 5, characterized in that it contains from 0 to 5 parts by weight of an alkyl sulfosuccinate, the alkyl residue of which contains from 6 to 12 carbon atoms, from 0 to 10 parts by weight of a reaction product of a mixture of alcohols containing from 16 to 18 carbon atoms (containing saturated and unsaturated alcohols) with 10 to 15 moles of ethylene oxide, from 0 to 10 parts in weight of an alkyl ester containing from 2 to 4 carbon atoms of a sulfated unsaturated carboxylic acid containing from 16 to 18 carbon atoms, from 0 to 10 parts by weight of a higher alcohol containing from 8 to 14 atoms carbon and 0 to 2 parts   by weight of a water-soluble silicone oil.   7. A biodegradable detergent composition according to claim 6, characterized in that it contains from 0 to 5 parts by weight of isooctyl sulfosuccinate or from 0 to 10 parts by weight of a mixture of ethoxylated oleic and cetyl alcohols with 10 to 12 moles of ethylene oxide, at least one of these components being present. 8.- A biodegradable detergent composition   according to any one of claims 1 to 5, characterized in that it contains, in addition to components A, B and C, soap, hexylene glycol and an agent of dispersion. 9. A biodegradable detergent composition according to claim 8, characterized in that the dispersing agent is the sodium salt of an acid aromatic sulfonic.   10.- A biodegradable detergent composition   according to any one of claims 1 to 9, character-   risée in that it contains, a branched primary alcohol containing from 8 to 14 carbon atoms and a water-soluble silicone oil.   11.- A process for preparing the compositions detergents specified in any of the claims 1 to 10, characterized in that the components are added   health with demineralized water and the mixture is stirred obtained until homogeneous. 12.- A process for cleaning objects soiled, characterized in that a compound is used   biodegradable detergent as specified in   any one of claims 1 to 10.