EP4053257A1 - Waschmaschineprodukt - Google Patents

Waschmaschineprodukt Download PDF

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Publication number
EP4053257A1
EP4053257A1 EP22154434.9A EP22154434A EP4053257A1 EP 4053257 A1 EP4053257 A1 EP 4053257A1 EP 22154434 A EP22154434 A EP 22154434A EP 4053257 A1 EP4053257 A1 EP 4053257A1
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EP
European Patent Office
Prior art keywords
inner composition
weight
respect
total weight
group
Prior art date
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EP22154434.9A
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English (en)
French (fr)
Inventor
Samanta Fabbri
Francesca EGENOLF
Vito Di Chiaro
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Deco Industrie S Coop PA
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Deco Industrie S Coop PA
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Publication of EP4053257A1 publication Critical patent/EP4053257A1/de
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    • 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
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/04—Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
    • C11D17/041—Compositions releasably affixed on a substrate or incorporated into a dispensing means
    • C11D17/042—Water soluble or water disintegrable containers or substrates containing cleaning compositions or additives for cleaning compositions
    • C11D17/043—Liquid or thixotropic (gel) 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
    • 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
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
    • C11D17/0017—Multi-phase liquid 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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2003—Alcohols; Phenols
    • C11D3/2041—Dihydric alcohols
    • 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
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2003—Alcohols; Phenols
    • C11D3/2065—Polyhydric alcohols
    • 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
    • C11D3/38—Products with no well-defined composition, e.g. natural products
    • C11D3/386—Preparations containing enzymes, e.g. protease or amylase
    • 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
    • C11D3/43—Solvents
    • 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
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • C11D3/2079—Monocarboxylic acids-salts thereof
    • 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
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • C11D3/2086—Hydroxy carboxylic acids-salts thereof
    • 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
    • C11D3/26—Organic compounds containing nitrogen
    • C11D3/33—Amino carboxylic acids
    • 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
    • C11D3/36—Organic compounds containing phosphorus
    • C11D3/361—Phosphonates, phosphinates or phosphonites

Definitions

  • the present invention concerns a product for washing machines and uses of said product.
  • Anti-scale products for washing machines are liquid products at high dilution (H 2 O>80%), preferably with pH varying from 4 to 7, which are added directly in the washing machine detergent drawer together with the detergent at every wash. Anti-scale products therefore cooperate with the detergent by sequestering the limescale present, thus improving the washing performance of the detergent. They therefore perform their action during the washing phase.
  • the formulations currently on the market consist of a pool of sequestering agents and dispersing agents. These products are generally sold in bottles of various volumes (500-1500ml) with measuring cap. Normally, 25-100ml of product are used per wash.
  • Anti-scale products for washing machines have various drawbacks, including the following: they are contained in bottles made of non bio-degradable plastic material (and therefore have a negative environmental impact), they are relatively difficult to measure out (making washing machine filling operations more complex and inaccurate - they also increase the risk of wastage) and do not allow for satisfactory improvement of the detergent action on all types of dirt.
  • Liquid detergents sold in water-soluble single-dose capsules are also known. However, they are not able to perform the functions of the above-mentioned anti-scale and washing machine care products and so far have been produced only in single-phase version.
  • the object of the present invention is to provide a product for washing machines and uses of said product which overcome, at least partially, the drawbacks of the known art and if possible are, at the same time, easy and inexpensive to produce.
  • a product for washing machines and uses of said product are provided as claimed in the following independent claim and, preferably, in any one of the claims depending directly or indirectly on the independent claim.
  • the number 1 indicates overall a product for washing machines.
  • the product 1 is for washing laundry and reducing the formation of scale in washing machines.
  • the product 1 acts simultaneously as a detergent for laundry (it washes the laundry) and as an anti-scale product (it protects the washing machine).
  • the product 1 comprises a substantially water-soluble (in particular, biodegradable) sheet 2; a collecting chamber 3, at least partially delimited by the sheet 2; and an inner composition 4, which is substantially liquid, is arranged inside the collecting chamber 3 and comprises 0% to 20% by weight, with respect to the total weight of said inner composition 4, of water; at least one non-ionic surfactant; an organic solvent, selected from the group consisting of: alcohols, diols, triols, polyols and a combination thereof; a detergent enzymatic component; and a sequestering component.
  • the inner composition 4 has at least two phases (more in particular it is two-phase - as illustrated in the figures).
  • the inner composition 4 has a first phase, which comprises the non-ionic surfactant (in particular and predominantly, also the detergent enzymatic component and/or if necessary an anionic surfactant - described in further detail below); and a second phase, which comprises the organic solvent (water if necessary), the sequestering component (and if necessary an alkalizing agent and/or a polymer component - described in further detail below). More precisely but not necessarily, the first and the second phase are (substantially) immiscible (between each other). In particular (since the inner composition 4 is substantially liquid), the first phase and the second phase are substantially liquid.
  • the non-ionic surfactant is collected (is arranged - predominantly) (in particular, also the enzymatic component and/or if necessary the anionic surfactant); in the second (lower) phase (portion - shown in lighter grey in the attached figures) of the inner composition 4, the organic solvent (water if necessary) is collected (is arranged - predominantly), together with the sequestering component and if necessary the alkalizing agent and/or the polymer component.
  • the inner composition 4 comprises a dye (a first organic pigment) which is arranged predominantly together with the non-ionic surfactant thus visually distinguishing, even more evidently, the division between the two phases.
  • the inner composition 4 comprises a further dye (a second organic pigment having a colour different, if possible, from the first organic pigment) which is arranged predominantly together with the organic solvent.
  • a further dye a second organic pigment having a colour different, if possible, from the first organic pigment
  • the inner composition 4 can be coloured only in the first phase (upper portion); or the inner composition 4 can be coloured only in the second phase (lower portion); or the first phase and the second phase of the inner composition 4 can have two different colours.
  • the inner composition 4 comprises at least a dye so that the first and the second phase have different colours from each other.
  • a component of the inner composition 4 is said to be arranged "predominantly" in a phase (portion), it means that the quantity of said component in that phase is higher than (in particular, is at least double) the quantity of the same component throughout the rest of the inner composition 4.
  • the inner composition comprises 5% to 60% (in particular, 57%) by weight, with respect to the total weight of the inner composition 4, of the organic solvent.
  • the inner composition 4 comprises up to a maximum of 15% (in particular, up to a maximum of 10%) by weight, with respect to the total weight of the inner composition 4, of water. It has been experimentally observed that the lower the concentration of water, the lower the risk of the sheet 2 being damaged.
  • the inner composition 4 comprises 1% to 50% by weight, with respect to the total weight of the inner composition 4, of a non-ionic surfactant.
  • a portion of air 5 (an air bubble) can also be arranged, which tends to locate above the afore-mentioned first phase (upper).
  • the inner composition 4 comprises at least 0.001% (in particular, up to 5%) by weight, with respect to the total weight of said inner composition 4, of the detergent enzymatic component. More precisely but not necessarily, the inner composition 4 comprises 0.01% (in particular, 0.06%; more in particular 0.1%) to 2% (in particular, 1%) by weight, with respect to the total weight of said inner composition 4, of the detergent enzymatic component.
  • said enzymatic component is collected (is arranged - predominantly) in the first (upper) phase (portion - illustrated in darker grey in the attached figures) of the inner composition 4.
  • the detergent enzymatic component comprises at least an enzyme selected from the group consisting of: protease enzymes, amylase enzymes, lipase enzymes, mannanase enzymes, cellulase enzymes, pectinase enzymes and licheninase enzymes.
  • the detergent enzymatic component comprises at least one enzyme selected from the group consisting of: protease enzymes, amylase enzymes, lipase enzymes, mannanase enzymes and cellulase enzymes.
  • the detergent enzymatic component comprises at least one enzyme selected from the group consisting of: protease enzymes, mannanase enzymes, amylase enzymes. Even more in particular, the detergent enzymatic component comprises at least one enzyme selected from the group consisting of: protease enzymes, amylase enzymes.
  • the detergent enzymatic component comprises at least one protease enzyme (protease enzymes).
  • the detergent enzymatic component comprises at least one amylase enzyme (amylase enzymes).
  • the detergent enzymatic component comprises at least one mannanase enzyme (mannanase enzymes).
  • the detergent enzymatic component comprises (is composed of) at least one protease enzyme (protease enzymes) and at least one amylase enzyme (amylase enzymes).
  • the detergent enzymatic component comprises (is composed of) at least one protease enzyme (protease enzymes) and at least one mannanase enzyme (mannanase enzymes).
  • the detergent enzymatic component comprises at least 0.001% (in particular, at least 0.03%; more in particular, at least 0.04%; even more in particular, at least 0.1%) by weight, with respect to the total weight of said inner composition 4, of at least one protease enzyme (protease enzymes).
  • the detergent enzymatic component comprises up to (a maximum of) 3% (in particular, up to 1%; more in particular, up to 0.5%; more in particular, up to 0.3%) by weight, with respect to the total weight of said inner composition 4, of at least one protease enzyme (protease enzymes).
  • the protease enzyme comprises (in particular, is) subtilisin ( CAS number: 9014-01-1 ).
  • the detergent enzymatic component comprises at least 0.001% (in particular, at least 0.01%; in particular, at least 0.03%), with respect to the total weight of said inner composition 4, of at least one amylase enzyme (amylase enzymes).
  • the detergent enzymatic component comprises up to (a maximum of) 1% (in particular, up to 0.1%; more in particular, up to 0.05%) by weight, with respect to the total weight of said inner composition 4, of at least one amylase enzyme (amylase enzymes).
  • the amylase enzyme comprises (in particular, is) an enzyme selected from the group consisting of: ⁇ -amylase (EC number: 3.2.1.1; e.g. CAS NUMBER: 9000-90-2 ), ⁇ -amylase (EC number: 3.2.1.2), ⁇ -amylase (EC number: 3.2.1.3) (and a combination thereof).
  • the amylase enzyme comprises (in particular, is) an ⁇ -amylase (EC number: 3.2.1.1; e.g. CAS number: 9000-90-2 ).
  • the detergent enzymatic component comprises at least 0.0005% (in particular, at least 0.001%), with respect to the total weight of said inner composition 4, of at least one mannanase enzyme (mannanase enzymes).
  • the detergent enzymatic component comprises up to (a maximum of) 0.1% (in particular, up to 0.01%; more in particular, up to 0.002%) by weight, with respect to the total weight of said inner composition 4, of at least one mannanase enzyme (mannanase enzymes; e.g. CAS number: 37288-54-3 ).
  • the mannanase enzyme comprises (is) a Beta-mannosidase enzyme (EC number: 3.2.1.25).
  • the detergent enzymatic component comprises at least 0.0005% (in particular, at least 0.001%), with respect to the total weight of said inner composition 4, of at least one cellulase enzyme (cellulase enzymes).
  • the detergent enzymatic component comprises up to (a maximum of) 0.1% (in particular, up to 0.01%; more in particular, up to 0.002%) by weight, with respect to the total weight of said inner composition 4, of at least one cellulase enzyme (cellulase enzymes; e.g. CAS number: 9012-54-8 ).
  • the detergent enzymatic component comprises at least 0.0005% (in particular, at least 0.001%), with respect to the total weight of said inner composition 4, of at least one pectinase enzyme (pectinase emzymes).
  • the detergent enzymatic component comprises up to (a maximum of) 0.1% (in particular, up to 0.01%; more in particular, up to 0.002%) by weight, with respect to the total weight of said inner composition 4, of at least one pectinase enzyme (pectinase enzymes; e.g. CAS number: 9032-75-1 ).
  • pectinase enzymes e.g. CAS number: 9032-75-1
  • the detergent enzymatic component comprises at least 0.0005% (in particular, at least 0.001%), with respect to the total weight of said inner composition 4, of at least one licheninase enzyme (licheninase enzymes).
  • the detergent enzymatic component comprises up to (a maximum of) 0.1% (in particular, up to 0.01%; more in particular, up to 0.002%) by weight, with respect to the total weight of said inner composition 4, of at least one licheninase enzyme (licheninase enzymes; e.g. CAS number: 37288-51-0 ).
  • Examples of the detergent enzymatic component and of the different enzymes are, for example, provided in: Olsen, H.S., Falholt, P. The role of enzymes in modern detergency. J Surfact Deterg 1, 555-567 (1998). https://doi.org/10.1007/s11743-998-0058-7 ; and Kirk O, Borchert TV, Fuglsang CC. Industrial enzyme applications. Curr Opin Biotechnol. 2002 Aug;13(4):345-51. doi: 10.1016/s0958-1669(02)00328-2. PMID: 12323357 .
  • the non-ionic surfactant is selected from the group consisting of: alkoxylated alcohols (in particular C 8 -C 38 ; more in particular, C 12 -C 28 ), alkyl polyglucosides (in particular C 9 -C 38 ; more in particular, C 12 -C 28 ), ethanolamides (in particular C 9 -C 27 ; more in particular, C 18 -C 24 ) of fatty acids, glycerol ethoxylated esters (and a combination thereof).
  • alkoxylated alcohols in particular C 8 -C 38 ; more in particular, C 12 -C 28
  • alkyl polyglucosides in particular C 9 -C 38 ; more in particular, C 12 -C 28
  • ethanolamides in particular C 9 -C 27 ; more in particular, C 18 -C 24
  • the non-ionic surfactant is selected from the group consisting of: ethoxylated alcohols (in particular C 8 -C 38 ; more in particular, C 12 -C 28 ), etho-propoxylated alcohols (in particular C 8 -C 38 ; more in particular, C 12 -C 28 ), alkyl polyglucosides (in particular C 9 -C 38 ; more in particular, C 12 -C 28 ), ethanolamides (in particular C 9 -C 27 ; more in particular, C 18 -C 24 ) of fatty acids, glycerol ethoxylated esters (and a combination thereof).
  • ethoxylated alcohols in particular C 8 -C 38 ; more in particular, C 12 -C 28
  • etho-propoxylated alcohols in particular C 8 -C 38 ; more in particular, C 12 -C 28
  • alkyl polyglucosides in particular C 9 -C 38 ; more in particular, C 12
  • the non-ionic surfactant is selected from the group consisting of: ethoxylated alcohols (in particular C 8 -C 38 ; more in particular, C 12 -C 28 ), etho-propoxylated alcohols (in particular C 8 -C 38 ; more in particular, C 12 -C 28 ) (and a combination thereof) .
  • the alcohol-ethoxylates have the following structural formula (I): R 1 -O-(CH 2 CH 2 O) n -H (I) in which R 1 is an aliphatic (in particular, an alkyl) C 9 -C 18 ; n is an integer from 1 to 9.
  • the alcohol-ethopropoxylates have the following structural formula (II): R 2 -O-(R 3 O) m -H (II) in which R 2 is a C 9 -C 18 aliphatic (in particular, an alkyl); m is an integer from 1 to 9; and each R 3 is selected, independently of the others, from-(CH 2 ) 3 - and -(CH 2 ) 2 -.
  • R 1 , R 2 and R 3 are linear.
  • C x -C y refers to a group and/or a compound which is understood to have x to y atoms of carbon.
  • aliphatic indicates a nonaromatic and non-substituted hydrocarbon (unless specified otherwise), saturated or unsaturated, linear, branched and/or cyclic.
  • Non-limiting examples of aliphatic groups are: t-butyl, ethenyl, 1- or 2-propenyl, cyclohexyl.
  • alkyl indicates a saturated aliphatic (namely an aliphatic group without double or triple carbon-carbon bonds).
  • alkyls are: methyl, n-propyl, t-butyl, cyclohexyl.
  • the inner composition 4 comprises from 1% (in particular, 10%) to 30% (in particular, 25%) by weight, with respect to the total weight of the inner composition 4, of the above-mentioned non-ionic surfactant.
  • the inner composition 4 comprises at least one anionic surfactant.
  • the inner composition 4 comprises at least 1% (in particular, at least 2%; more in particular, at least 4%; even more in particular, at least 10%; even more in particular, at least 15%) by weight with respect to the total weight of the inner composition 4, of the anionic surfactant.
  • the inner composition 4 comprises up to 45% (in particular up to 40%; more in particular, up to 35%) by weight with respect to the overall weight of the inner composition 4, of the anionic surfactant.
  • the anionic surfactant is selected from the group consisting of: alkyl ethoxylate sulphates (in particular C 8 -C 38 ; more in particular, C 12 -C 28 ), alkyl sulphates (in particular C 8 -C 18 ; more in particular, C 12 -C 16 ), dodecylbenzene sulfonates (dodecylbenzenesulfonic acid salts), alkylbenzene sulfonates (in particular C 9 -C 27 ; more in particular, C 18 -C 24 ) , alkyl sulfonates (in particular C 9 -C 21 ; more in particular, C 12 -C 18 ), soaps (in particular C 9 -C 21 ; more in particular, C 12 -C 18 ).
  • alkyl ethoxylate sulphates in particular C 8 -C 38 ; more in particular, C 12 -C 28
  • alkyl sulphates in particular C 8
  • sulphates and/or “sulfonates” of organic compounds indicates both the relative acids (sulphuric acids and sulfonic acids, respectively) and the relative salts (for example sodium salts) and the anions (completely dissociated from the counterions).
  • the surfactant is one or more alkylbenzene sulphonates (in particular C 9 -C 27 ; more in particular, C 18 -C 24 ).
  • the alkylbenzene sulphonates have the following structural formula (III): in which R 4 is a C 9 -C 18 aliphatic (in particular, an alkyl); R 5 is a C 1 -C 4 (in particular, C 2 -C 3 , more in particular C 2 ) aliphatic (in particular, an alkyl). More precisely but not necessarily, R 4 is a linear aliphatic (in particular, an alkyl); R 5 is a linear aliphatic (in particular, an alkyl).
  • the alkylbenzene sulphonates have the following structural formula (IV): in which R 4 is a C 9 -C 18 aliphatic (in particular, an alkyl); M is hydroxyamine or a metal selected from sodium and potassium. More precisely but not necessarily, R 4 is a linear aliphatic (in particular, an alkyl).
  • alkyl ethoxylate sulphates have the following structural formula (V): R 6 -(OC 2 H 4 ) a -SO 4 - (V) in which R 6 is a C 9 -C 18 aliphatic (in particular, an alkyl); a is an integer from 1 to 9.
  • alkyl sulphates have the following structural formula (VI): R 7 -SO4 - (VI), in which R 7 is a C 9 -C 18 aliphatic (in particular, an alkyl).
  • the inner composition 4 comprises one or more further surfactants selected from the group consisting of: cationic surfactants, amphoteric surfactants (and a combination thereof).
  • the non-ionic character of any mixture of surfactants is predominant.
  • the non-ionic surfactant is in a quantity (weight) greater than the other surfactants.
  • non-ionic surfactant it is not necessary for the non-ionic surfactant to be in a quantity greater than other types of surfactant (the quantity of another single surfactant or the sum of the quantities of other surfactants in the inner composition 4 can be higher than that of the non-ionic surfactant).
  • the inner composition 4 comprises (in particular, from 1% to 30%; more in particular from 5% to 15%; even more in particular, up to 10% by weight, with respect to the total weight of the inner composition 4) the above-mentioned further surfactant, which can be a mixture of different cationic surfactants and/or amphoteric surfactants or composed of a single cationic surfactant or a single amphoteric surfactant.
  • the above-mentioned further surfactant which can be a mixture of different cationic surfactants and/or amphoteric surfactants or composed of a single cationic surfactant or a single amphoteric surfactant.
  • the further surfactant is selected from the group consisting of: amine ethoxylates (in particular C 12 -C 18 ), quaternary ammonium salts (in particular C 9 -C 21 ; more in particular, C 12 -C 18 ), betaines (in particular C 9 -C 27 ; more in particular, C 12 -C 16 ), amine oxide (in particular C 9 -C 21 ; more in particular, C 12 -C 16 ) (and a combination thereof).
  • amine ethoxylates in particular C 12 -C 18
  • quaternary ammonium salts in particular C 9 -C 21 ; more in particular, C 12 -C 18
  • betaines in particular C 9 -C 27 ; more in particular, C 12 -C 16
  • amine oxide in particular C 9 -C 21 ; more in particular, C 12 -C 16
  • the inner composition 4 comprises from 0.5% to 50% by weight, with respect to the total weight of the inner composition 4, of the sequestering component (for the metallic ions; in particular for the calcium and magnesium ions).
  • the sequestering component is collected (is arranged - predominantly) in the second (lower) phase (portion - shown in lighter grey in the attached figures) .
  • the inner composition 4 comprises at least 1% (in particular, at least 2%; more in particular, at least 5%) by weight, with respect to the total weight of the inner composition 4, of the sequestering component.
  • the inner composition 4 comprises up to (less than or equal to) 40% (in particular, up to 30%; more in particular, up to 15%) by weight, with respect to the total weight of the inner composition 4, of the sequestering component.
  • the sequestering component acts synergically together with the surfactant/s so as to improve the cleaning action of the surfactant/s.
  • the sequestering component comprises at least one weak acid and/or at least one component with chelating action (on the metallic cations; in particular, on the calcium and magnesium cation).
  • the sequestering component comprises (is) the component with chelating action.
  • the sequestering component comprises (is) the weak acid.
  • weak acid indicates the acid as such (not dissociated) and/or a salt thereof (for example sodium citrate) and/or the anion (completely dissociated from the counterion). This applies to any embodiment and/or example of said weak acid.
  • the weak acid has a pK a in water (in particular, measured at ambient temperature and pressure - 25°C and 1 bar) higher than 1 (in particular, higher than or equal to 2) up to 9 (in particular, up to 6; more in particular, up to 5; even more in particular up to 4).
  • the pKa and the pKb are determined according to one of the known methods (if necessary using the most suitable method of those described, for example, in Reijenga et al, Developments of Methods for the Determination of pKa Values, Analytical Chemistry Insights 2013:8 53-17 ).
  • the pKa and the pKb are determined according to the potentiometric method (see X.
  • the weak acid is selected from the group consisting of: carboxylic acids (in particular, C 1 -C 9 ; with, in particular, 1 to 4 - more precisely 1 to 3 - carboxylic groups), phosphoric acid (and a combination thereof).
  • the weak acid can be a mixture of different carboxylic acids (with or without the phosphoric acid) or composed of a single carboxylic acid.
  • the weak acid is selected from the group consisting of: citric acid, lactic acid, formic acid, phosphoric acid (and a combination thereof). More precisely but not necessarily, weak acid is selected from the group consisting of: citric acid, lactic acid, formic acid (and a combination thereof). In some preferred non-limiting cases, the weak acid is citric acid.
  • the chelating component is selected from the group consisting of: glutamate diacetate (e.g. tetrasodium glutamate diacetate), phosphonates.
  • the phosphonates have a molecular weight ranging from 50 g/mol to 5000 g/mol (more in particular from 100g/mol to 1000 g/mol).
  • the phosphonates are selected from the group consisting of: ATMP (aminotris (methylene phosphonic acid) - CAS number: 6419-19-8 ), HEDP (1-hydroxyethane 1,1-diphosphonic acid - CAS number: 2809-21-4 ), EDTMPA (ethylenediamine tetra (methylene phosphonic) acid - CAS number: 1429-50-1 ), HDTMPA (hexamethylenediamine tetra (methylene phosphonic) acid - CAS number: 23605-74-5 ), DTPMPA (diethylenetriamine penta (methylene phosphonic) acid - CAS number: 15827-60-8 ), (and combinations thereof).
  • ATMP aminotris (methylene phosphonic acid) - CAS number: 6419-19-8
  • HEDP 1-hydroxyethane 1,1-diphosphonic acid - CAS number: 2809-21-4
  • EDTMPA ethylenediamine tetra (methylene phosphonic) acid
  • glutamate diacetate and phosphonates indicate the relative acids, the relative salts (for example sodium salts) and the anions (completely dissociated from the counterions).
  • the sequestering component is selected from the group consisting of: citric acid, lactic acid, formic acid, phosphoric acid, glutamate diacetate, ATMP, HEDP, EDTMPA, HDTMPA, DTPMPA (and a combination thereof).
  • the sequestering component is selected from the group consisting of: citric acid, lactic acid, formic acid, phosphoric acid, glutamate diacetate, ATMP, HEDP, EDTMPA, HDTMPA, DTPMPA (and a combination thereof).
  • the organic solvent is selected from the group consisting of alcohols, diols, triols, polyols (and a combination thereof).
  • the alcohols, diols, triols and polyols are, each independently of one another, C 2 -C 8 (in particular, C 3 -C 6 ).
  • the organic solvent can be a mixture of different alcohols (and/or diols and/or triols and/or polyols) or composed of one single alcohol (or diol or triol or polyol).
  • the alcohols, diols, triols and polyols have, each one independently of the others, a number of hydroxyls equal to the number of carbons.
  • each carbon of the alcohols, diols, triols and polyols is bound to a respective single (sole) hydroxyl group.
  • the cited alcohols, diols, triols and polyols are linear (namely, they have a linear chain of carbons bound to one another).
  • the organic solvent is selected from the group consisting of: glycerin, sorbitol (and a combination thereof).
  • the organic solvent comprises (in particular, is) glycerin.
  • the organic solvent comprises (in particular, is) sorbitol.
  • the inner composition 4 comprises at least 5% (in particular, at least 10%, more in particular at least 15%) by weight, with respect to the total weight of the inner composition 4, of the organic solvent.
  • the inner composition 4 comprises up to (less than or equal to) 50% (in particular, up to 45%; more in particular, up to 35%) by weight, with respect to the total weight of the inner composition 4, of the organic solvent.
  • the inner composition 4 comprises from 1% to 40% by weight, with respect to the total weight of the inner composition 4, of an alkalizing agent having a PK b , in water at 25°C and at 1 bar, from 2 (in particular, from 3) to 9 (in particular, to 8; more in particular, to 7; even more in particular, to 5).
  • the alkalizing agent is arranged together with the organic solvent (in the lower part of the chamber 3).
  • the alkalizing agent surprisingly, allows improved solubilization of the above-mentioned weak acid and, at the same time, regulates the pH, reducing the risk, for example, of inactivating the detergent enzymes.
  • the inner composition 4 comprises at least 2% (in particular, at least 5%) by weight, with respect to the total weight of the inner composition 4, of the alkalizing agent.
  • the inner composition 4 comprises up to (less than or equal to) 35% (in particular, up to 25%; more in particular, up to 20%; even more in particular, up to 15%; even more in particular, up to 10%) by weight, with respect to the total weight of the inner composition 4, of the alkalizing agent.
  • the alkalizing agent is selected from the group consisting of: C 1 -C 8 hydroxy-amine (in particular, with one single amine functionality; in particular, C 2 -C 6 ), ammonia, potassium hydroxide (and a combination thereof).
  • the alkalizing agent can be a mixture of different hydroxy-amines or composed of one single hydroxy-amine.
  • the alkalizing agent is selected from the group consisting of: monoethanolamine, diethanolamine, triethanolamine (potassium hydroxide) (and a combination thereof).
  • the inner composition 4 comprises from 1% to 20% (in particular 10%; more in particular, 8%) by weight, with respect to the total weight of the inner composition 4, of a polymer component (in particular, comprising - consisting of - a plurality of polymers selected from the group consisting of: acrylic homopolymers, acrylic-maleic copolymers - and a combination thereof).
  • a polymer component in particular, comprising - consisting of - a plurality of polymers selected from the group consisting of: acrylic homopolymers, acrylic-maleic copolymers - and a combination thereof.
  • the polymer component can be a mixture of different acrylic homopolymers (and/or acrylic-maleic copolymers) or composed of a single acrylic homopolymer.
  • the polymer component is arranged together with the organic solvent (in the lower part of the chamber 3).
  • the polymer component is able to sequester calcium and magnesium and, acting synergically with the weak acid, allows limescale to be reduced.
  • the polymer component comprises polymers with a mean molecular weight ranging from 1000 g/mol (in particular, 3000 g/mol) to 20000 g/mol (in particular, 10000 g/mol; more in particular, 6000 g/mol).
  • the mean molecular weight of the polymers is measured by static light scattering methods (as described, for example, in ASTM D4001 - 13).
  • the product 1 has a pH from 4 to 8.
  • the sheet has a thickness ranging from approximately 20 ⁇ m to approximately 300 ⁇ m (in particular, approximately 150 ⁇ m).
  • the sheet 2 (is made of a material such that it) dissolves in water at 25°C within 10 minutes from immersion.
  • the sheet 2 is (mainly) made of polyvinyl alcohol (PVOH).
  • the collecting chamber 3 is completely delimited by the sheet 2. In other words, in these cases, the sheet 2 fully envelops the inner composition 4.
  • the product 1 comprises a container having a substantially non water-soluble portion and the sheet 2.
  • the non water-soluble portion is shaped like a cup, inside which the inner composition 4 is arranged.
  • the cup-shaped portion has an opening which is (completely) covered (closed) by the sheet 2.
  • the non water-soluble portion is (mainly) made of PE, PP, PET, PS, PVC (and a combination thereof).
  • the sheet 2 is limp.
  • the collecting chamber 3 assumes an expanded shape different from (and volumetrically larger than) the shape assumed by the collecting chamber 3, when the collecting chamber 3 is empty.
  • the product 1 comprises from approximately 5 ml (in particular, from approximately 15 ml) to approximately 30 ml (in particular, to approximately 25 ml) of the inner composition 4.
  • the above-mentioned product 1 is for washing at least one item (in particular, a plurality of items) predominantly made of fabric (more in particular, clothes and/or linen) and reducing the formation of limescale inside the washing machine.
  • the product 1 has various advantages with respect to the state of the art. Among these are the following: surprisingly, it is possible to obtain a two-phase inner composition 4; the product 1 has a reduced environmental impact (in particular, the sheet 2, since it is water-soluble and biodegradable, does not leave residues); the product 1 has reduced overall dimensions (therefore, among other things, great ease of transport and reduced need for packaging); it is easy to dose (thus also reducing waste); the washing action is improved for some types of dirt; for use, and therefore for performing its function, it requires less energy, water and time.
  • the use of the above defined product 1 in a washing machine is provided.
  • At least one item in particular, a plurality of said items
  • fabric more in particular, clothes and/or linen
  • the use comprises a treatment phase during which the product 1 comes into contact with the water (in particular, having a temperature below 40°C) inside the washing machine and the sheet 2 dissolves (at least partially).
  • the use entails a washing cycle (in particular, during which inside the washing machine there is at least one above-mentioned item - more in particular, a plurality of said items). More precisely but not necessarily, the washing cycle comprises the above-mentioned treatment phase and (optionally) a washing phase, during which the item/s is/are washed.
  • a use is provided of a product 1 as described above for washing in a washing machine at least one item (in particular, a plurality of items), predominantly made of fabric (more in particular, clothing and/or linen), and reducing the formation of scale (in particular, limescale) inside the washing machine.
  • the product 1 contributes to washing (washes) at least one item (in particular, a plurality of items), which is predominantly made of fabric (more in particular, clothes and/or linen) and is inside a washing machine, and reduces (contributes to reducing) the formation of scale (in particular, limescale) inside the washing machine.
  • This example describes the production of some products in accordance with the present invention.
  • Formulation A Single dose components % by weight Glycerol 41.534 Alkylbenzene sulfonic acid, monoethanolamine salt 19.0 Alcohol ethoxylate 15.0 Monopropylene glycol 10.0 Coconut fatty acids, monoethanolamine salt 5.0 Ethopropoxylated alcohol 20 Water 4.5 Polycarboxylate polymer 3.2 Tetrasodium glutamate diacetate 1.5 Diethylenetriamine pentamethylene phosphonic acid, sodium salt 0.20 Protease enzyme (subtilisin) 0.050 Amylase enzyme 0.015 Dye 0.015 Total 100 Formulation B Single dose components % by weight Glycerol 43.08 Alcohol ethoxylate 21.0 Monoethanolamine citrate 13.3 Alkylbenzene sulfonic acid, monoethanolamine salt 5.0 Water 4.9 Ethyl alcohol 4.5 Monopropylene glycol 3.6 Coconut fatty acids, monoethanolamine salt 2.5 Polycarboxylate polymer 1.0 Diethylenetriamine pentamethylene phosphonic acid, sodium salt 0.50 Fragrance 0.45 Protease enzyme (
  • the products containing the compositions with the formulations A, B and C were prepared mainly as washing machine products. These products are two-phase.
  • the two-phase formulation compared to a traditional single-phase formulation, is effective in reducing limescale.
  • the single-phase formulations only show detergent properties vis-à-vis the fabrics and do not prove effective in removing scale.
EP22154434.9A 2021-02-01 2022-02-01 Waschmaschineprodukt Pending EP4053257A1 (de)

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WO2023197233A1 (en) * 2022-04-14 2023-10-19 Ecolab Usa Inc. Chemo-mechanical solution for cleaning fluidic tanks and piping

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