EP4263771A1 - Utilisation et composition de nettoyage - Google Patents

Utilisation et composition de nettoyage

Info

Publication number
EP4263771A1
EP4263771A1 EP21823926.7A EP21823926A EP4263771A1 EP 4263771 A1 EP4263771 A1 EP 4263771A1 EP 21823926 A EP21823926 A EP 21823926A EP 4263771 A1 EP4263771 A1 EP 4263771A1
Authority
EP
European Patent Office
Prior art keywords
rhamnolipid
rha
alkyl sulfate
primary alkyl
surfactant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21823926.7A
Other languages
German (de)
English (en)
Inventor
Nicholas Joseph BROWNBILL
Ramitha Kalathil
Jeannine SEYFERT
Paul Simon Stevenson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unilever Global IP Ltd
Unilever IP Holdings BV
Original Assignee
Unilever Global IP Ltd
Unilever IP Holdings BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Unilever Global IP Ltd, Unilever IP Holdings BV filed Critical Unilever Global IP Ltd
Publication of EP4263771A1 publication Critical patent/EP4263771A1/fr
Pending legal-status Critical Current

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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
    • C11D1/88—Ampholytes; Electroneutral compounds
    • C11D1/94—Mixtures with anionic, cationic or 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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/04—Carboxylic acids or salts thereof
    • C11D1/06—Ether- or thioether 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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
    • C11D1/146—Sulfuric acid esters
    • 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
    • C11D1/88—Ampholytes; Electroneutral compounds
    • C11D1/90—Betaines
    • 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
    • C11D1/88—Ampholytes; Electroneutral compounds
    • C11D1/92—Sulfobetaines ; Sulfitobetaines

Definitions

  • the invention concerns the use of a combination of an amphoteric surfactant and a biosurfactant to enhance the cleaning of a primary alkyl sulfate anionic surfactant at low temperature.
  • the invention also relates to a cleaning composition particularly suitable to cleaning at low temperature comprising a primary alkyl sulfate surfactant, an amphoteric surfactant, and a biosurfactant.
  • Primary alkyl sulfate is an anionic surfactant, useful for cleaning purposes. There is a problem with these surfactants in terms of cleaning ability at low temperature (e.g. lower than 15°C).
  • the invention seeks to overcome the problem of cleaning at low temperature (e.g. lower than 15°C) of primary alkyl sulfate surfactant cleaning compositions.
  • cleaning compositions containing a primary alkyl sulfate surfactant have improved cleaning at temperatures below 15°C, preferably below 12°C, more preferably 10°C and lower by inclusion of a combination of an amphoteric surfactant and a biosurfactant.
  • the invention relates in a first aspect to the use of a combination of a rhamnolipid biosurfactant and amphoteric surfactant selected from betaines, glucamides and sultaines to improve the cold cleaning performance at temperatures below 15°C, preferably below 12°C, more preferably 10°C and lower, of primary alkyl sulfate surfactant containing cleaning compositions, wherein the primary alkyl sulfate is a C10-C20 alkyl sulphate.
  • a rhamnolipid biosurfactant and amphoteric surfactant selected from betaines, glucamides and sultaines
  • the ratio of primary alkyl sulfate surfactant to biosurfactant, preferably microbial derived biosurfactant, most preferably rhamnolipid biosurfactant is from 8:1 to 1 :10, preferably from 7:1 to 1 :5, more preferably from 6:1 to 1 :2, even more preferably from 6:1 to 1 :1 ; and, the ratio of primary alkyl sulfate surfactant to amphoteric surfactant is from 8:1 to 1 :10, preferably from 7:1 to 1 :5, more preferably from 6:1 to 1 :2, even more preferably from 6:1 to 1 :1.
  • the cleaning composition is a fluid cleaning composition, more preferably an aqueous cleaning composition.
  • the cleaning composition comprises from 1 to 30 wt.%, preferably from 1 to 25 wt.%, more preferably from 2.5 to 20 wt.%, most preferably from 2.5 to 15 wt.% of primary alkyl sulfate.
  • the primary alkyl sulfate is a sodium, potassium or ammonium C10-C20 alkyl sulphate, even more preferably sodium C10-C20 alkyl sulphate, most preferably sodium lauryl sulfate.
  • the cleaning composition comprises from 1 to 10 wt.%, more preferably from 1 to 9 wt.%, more preferably from 1 to 8 wt.%, most preferably from 1 .5 to 6 wt.% of rhamnolipid biosurfactant.
  • the rhamnolipid comprises at least 50 wt.% mono-rhamnolipid, more preferably at least 60 wt.% mono-rhamnolipid, even more preferably 70 wt.% mono- rhamnolipid, most preferably at least 80 wt.% mono-rhamnolipid, or wherein the rhamnolipid comprises at least 50 wt.% di-rhamnolipid, more preferably at least 60 wt.% di-rhamnolipid, even more preferably 70 wt.% di-rhamnolipid, most preferably at least 80 wt.% di- rhamnolipid.
  • the rhamnolipid is a di-rhamnolipid of formula: Rha2C8-i2Cs-i2 wherein the alkyl chain may be saturated or unsaturated.
  • the cleaning composition from 1 to 10 wt.%, more preferably from 1 to 9 wt.%, more preferably from 1 to 8 wt.%, most preferably from 1.5 to 6 wt.% of amphoteric surfactant selected from betaines, glucamides and sultaines.
  • the amphoteric surfactant is selected from cocamidopropyl betaine and lauryl hydroxy sultaine, most preferably the amphoteric surfactant is lauryl hydroxy sultaine.
  • the composition is a home care cleaning composition.
  • the composition further comprises one or more enzymes selected from lipases, proteases, amylases, cellulases, and mixtures thereof.
  • the detergent composition when dissolved in demineralised water at 4g/L, 293K has a pH of from 4 to 11 , more preferably from 5 to 10, even more preferably from 5 to 9.
  • the composition is a cleaning composition comprising: a) from 1 to 30 wt.% of a primary alkyl sulfate surfactant; b) from 1 to 10 wt.% of an amphoteric surfactant selected from betaines, glucamides and sultaines; and, c) from 1 to 10 wt.% of a rhamnolipid biosurfactant; wherein the ratio of primary alkyl sulfate surfactant to biosurfactant is from 8:1 to 1:10, preferably from 7:1 to 1 :5, more preferably from 6:1 to 1 :2, even more preferably from 6:1 to 1 :1 ; and, wherein the ratio of primary alkyl sulfate surfactant to amphoteric surfactant is from 8:1 to 1 :10, preferably from 7:1 to 1:5, more preferably from 6:1 to 1:2, even more preferably from 6:1 to 1:1 ; wherein the primary alkyl sulf
  • Figure 1 shows the advantageous effect of the combination of a rhamnolipid biosurfactant and amphoteric surfactant to improve the cold cleaning performance at 10°C of primary alkyl sulfate surfactant containing cleaning compositions.
  • the performance of PAS drops off at such low temperatures
  • amphoteric surfactant selected from betaines, glucamides and sultaines and a rhamnolipid biosurfactant is used together to enhance the cleaning of a primary alkyl sulfate anionic surfactant at low temperature.
  • Low temperature as used herein means at temperatures below 15°C, preferably below 12°C, more preferably 10°C and lower.
  • the ratio of primary alkyl sulfate surfactant to rhamnolipid biosurfactant is from 8:1 to 1:10, preferably from 7:1 to 1 :5, more preferably from 6:1 to 1 :2, even more preferably from 6:1 to 1:1; and, the ratio of primary alkyl sulfate surfactant to amphoteric surfactant is from 8:1 to 1:10, preferably from 7:1 to 1:5, more preferably from 6:1 to 1:2, even more preferably from 6:1 to 1 :1.
  • amphoteric surfactant selected from betaines, glucamides and sultaines and a rhamnolipid biosurfactant to enhance the cleaning of a primary alkyl sulfate anionic surfactant at low temperature
  • an amphoteric surfactant selected from betaines, glucamides and sultaines and a rhamnolipid biosurfactant to enhance the cleaning of a primary alkyl sulfate anionic surfactant at low temperature
  • a preferred composition according to the invention as described in the following pages.
  • a cleaning composition comprising: a) from 1 to 30 wt.% of a primary alkyl sulfate surfactant; b) from 1 to 10 wt.% of an amphoteric surfactant selected from betaines, glucamides and sultaines; and, c) from 1 to 10 wt.% of a rhamnolipid biosurfactant; wherein the ratio of primary alkyl sulfate surfactant to biosurfactant is from 8:1 to 1 :10, preferably from 7:1 to 1:5, more preferably from 6:1 to 1:2, even more preferably from 6:1 to 1:1; and, wherein the ratio of primary alkyl sulfate surfactant to amphoteric surfactant is from 8:1 to 1:10, preferably from 7:1 to 1:5, more preferably from 6:1 to 1 :2, even more preferably from 6:1 to 1:1 ; wherein the primary alkyl sulfate is
  • the cleaning composition comprises from 1 to 30 wt.%, preferably from 1 to 25 wt.%, preferably from 2.5 to 20 wt.%, most preferably from 2.5 to 15 wt.% of primary alkyl sulfate.
  • the primary alkyl sulfate is a C10-C20 alkyl sulphate, preferably a lauryl sulfate.
  • the primary alkyl sulfate preferably is in the form with a counterion, more preferably the counterion is a sodium, potassium or ammonium ion.
  • Examples of preferred materials include sodium C10-C20 alkyl sulphate, most preferably sodium lauryl sulfate.
  • the primary alkyl sulphate does not include alkoxylated sulphates, i.e. the term primary alkyl sulphate does not include primary ether sulphates.
  • the ratio of primary alkyl sulfate surfactant to rhamnolipid biosurfactant is from 8:1 to 1 :10, preferably from 7:1 to 1:5, more preferably from 6:1 to 1:2, even more preferably from 6:1 to 1 :1.
  • the ratio of primary alkyl sulfate surfactant to amphoteric surfactant is from 8:1 to 1 :10, preferably from 7:1 to 1:5, more preferably from 6:1 to 1:2, even more preferably from 6:1 to 1 :1.
  • the ratios of primary alkyl sulfate surfactant to amphoteric surfactant and the ratio of primary alkyl sulfate surfactant to rhamnolipid biosurfactant can each individually or together also preferably go from 5:1 to 1 :1 , preferably from 4:1 to 1 :1, more preferably from 3:1 to 1 :1 most preferably from 2.75:1 to 1 :1 , or even 2.5 to 1 :1.
  • the rhamnolipid biosurfactant is present in the formulation from 1 to 9 wt.%, more preferably from 1 to 8 wt.%, most preferably from 1.5 to 6 wt.%.
  • the biosurfactant are rhamnolipids. These are a class of glycolipid. They are constructed of rhamnose combined with beta-hydroxy fatty acids. Rhamnose is a sugar. Fatty acids are ubiquitous in animals and plants.
  • Rhamnolipids are discussed in Applied Microbiology and Biotechnology (2010) 86:1323- 1336 by E. Deziel et al. Rhamnolipids are produced by Evonik, Stepan, Glycosurf, AGAE Technologies and Urumqi Unite Bio-Technology Co., Ltd. Rhamnolipids may be produced by strains of the bacteria Pseudomonas Aeruginosa. There are two major groups of rhamnolipids; mono-rhamnolipids and di-rhamnolipids.
  • Mono-rhamnolipids have a single rhamnose sugar ring.
  • a typical mono-rhamnolipid produced by P. aeruginosa is L-rhamnosyl-p-hydroxydecanoyl-p-hydroxydecanoate (RhaCioC ). It may be referred to as Rha-Cio-Cio, with a formula of C26H48O9.
  • Mono- rhamnolipids have a single rhamnose sugar ring.
  • the IIIPAC Name is 3-[3-[(2R,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2- yl]oxydecanoyloxy]decanoic acid.
  • Di-rhamnolipids have two rhamnose sugar rings.
  • a typical di-rhamnolipid is L-rhamnosyl-L- rhamnosyl-p-hydroxydecanoyl-p-hydroxydecanoate (Rha2CioCio). It may be referred to as Rha-Rha-C-io-C-io, with a formula of C32H58O13.
  • IIIPAC name is 3-[3-[4,5-dihydroxy-6-methyl-3-(3,4, 5-tri hydroxy-6-methyloxan-2- yl)oxyoxan-2-yl]oxydecanoyloxy]decanoic acid.
  • Rha- mono-rhamnolipids
  • RL1 mono-rhamnolipid
  • RL2 di-rhamnolipids
  • Rha-Rha Rh or Rh-Rh- or RL1.
  • rhamnolipid 2 is a mono-rhamnolipid
  • rhamnolipid 1 is a di-rhamnolipid. This leads to some ambiguity in the usage or "RL1 " and "RL2" in the literature.
  • Rhamnolipids produced by P. aeruginosa (unidentified as either mono- or di-rhamnolipids): C8-C8, C8-C10, C10-C8, C8-C12:1 , C12:1-C8, C10-C10, C12-C10, C12:1-C10 C12-C12, C12:1-C12, C14-C10, C14:1-C10, C14-C14.
  • Rhamnolipids produced by P. chlororaphis (mono-rhamnolipids only): Rha-C10-C8, Rha-C10-C10, Rha-C12-C10, Rha-C12:1-C10, Rha-C12-C12, Rha-C12:1- C12, Rha-C14-C10. Rha-C-14:1- C-10.
  • Rhamnolipids produced by Burkholdera pseudomallei (di-rhamnolipids only): Rha-Rha-C14-C14.
  • Rhamnolipids produced by Burkholdera Pseudomonas
  • plantarii di-rhamnolipids only
  • strains of P. aeruginosa can be isolated to produce rhamnolipids at higher concentrations and more efficiently. Strains can also be selected to produce less byproduct and to metabolize different feedstock or pollutants. This production is greatly affected by the environment in which the bacterium is grown.
  • a typical di-rhamnolipid is L-rhamnosyl-L-rhamnosyl-p-hydroxydecanoyl-p- hydroxydecanoate (Rha2CioCio with a formula of C32H58O13).
  • Rha2CioCio with a formula of C32H58O13.
  • the ratio of mono-rhamnolipid and di-rhamnolipid may be controlled by the production method.
  • Some bacteria only produce mono- rhamnolipid see US5767090: Example 1, some enzymes can convert mono-rhamnolipid to di-rhamnolipid.
  • the rhamnolipid is selected from:
  • Rhamnolipids produced by P. chlororaphis (mono-rhamnolipids only): Rha-C10-C8, Rha-C10-C10, Rha-C12-C10, Rha-C12:1-C10, Rha-C12-C12, Rha-C12:1- C12, Rha-C14-C10, Rha-C14:1-C10.
  • Mono-rhamnolipids may also be produced from P.putida by introduction of genes rhIA and rhIB from Psuedomonas aeruginosa [Cha et al. in Bioresour Technol. 2008. 99(7):2192-9]
  • Rhamnolipids produced by P. aeruginosa (di-rhamnolipids): Rha-Rha-C8-C10, Rha-Rha-C8-C12:1, Rha-Rha-C10-C8, Rha-Rha-C10-C10, Rha-Rha- C10-C12:1, Rha-Rha-C10-C12, Rha-Rha-C12-C10, Rha-Rha-C12:1-C12, Rha-Rha-C10- C14:1
  • Rhamnolipids produced by Burkholdera pseudomallei (di-rhamnolipids only): Rha-Rha-C14-C14.
  • the Rhamnolipid is L-rhamnosyl-p-hydroxydecanoyl-p-hydroxydecanoate (RhaCioC with a formula of C26H48O9) produced by P. aeruginosa.
  • the rhamnolipid comprises at least 50 wt.% mono-rhamnolipid, more preferably at least 60 wt.% mono-rhamnolipid, even more preferably 70 wt.% mono-rhamnolipid, most preferably at least 80 wt.% mono-rhamnolipid; alternatively, wherein the rhamnolipid comprises at least 50 wt.% di-rhamnolipid, more preferably at least 60 wt.% di-rhamnolipid, even more preferably 70 wt.% di-rhamnolipid, most preferably at least 80 wt.% di- rhamnolipid.
  • the rhamnolipid is a di-rhamnolipid of formula: Rha2C8-i2Cs-i2.
  • the preferred alkyl chain length is from Cs to C12.
  • the alkyl chain may be saturated or unsaturated.
  • the surfactant combination comprises from 1 to 10 wt.% of an amphoteric (also known as zwitteronic) surfactant.
  • the cleaning composition comprises from 1 to 9 wt.%, preferably from 1 to 8 wt.%, most preferably from 1 .5 to 6 wt.% of amphoteric surfactant.
  • amphoteric surfactant is selected from betaines, glucamides and sultaines, preferably selected from cocamidopropyl betaine and lauryl hydroxy sultaine, most preferably the amphoteric surfactant is lauryl hydroxy sultaine.
  • the composition is a cleaning composition, useful for cleaning a substrate, for example a surface, including for home and personal care purposes.
  • the composition is preferably a fluid cleaning composition, more preferably an aqueous cleaning composition.
  • the cleaning composition is a home care composition.
  • Such a composition could be used for example for hand dish wash, to cleaning substrates such as cutlery, crockery, glassware, plastics and metal.
  • the cleaning composition is a laundry detergent composition, more preferably a liquid laundry detergent or a powder detergent.
  • the detergent composition when dissolved in demineralised water at 4g/L, 293K has a pH of from 4 to 11 , more preferably from 5 to 10, even more preferably from 5 to 9.
  • the laundry detergent composition when dissolved in demineralised water at 4g/L, 293K, has a pH of from 6 to 11, more preferably from 6 to 9.
  • Additional surfactants may be present in the composition.
  • the cleaning composition comprises from 0 to 20 wt.%, more preferably from 0 to 10 wt.% of additional surfactants.
  • These are preferably selected from anionic and nonionic surfactants.
  • nonionic and anionic surfactants of the surfactant system may be chosen from the surfactants described "Surface Active Agents” Vol. 1 , by Schwartz & Perry, Interscience 1949, Vol. 2 by Schwartz, Perry & Berch, Interscience 1958, in the current edition of "McCutcheon's Emulsifiers and Detergents” published by Manufacturing Confectioners Company or in "Tenside-Taschenbuch", H. Stache, 2nd Edn, Carl Hauser Verlag, 1981.
  • the surfactants used are saturated.
  • nonionic detergent compounds which may be used include the reaction products of compounds having a hydrophobic group and a reactive hydrogen atom, for example, aliphatic alcohols, acids, amides with alkylene oxides, especially ethylene oxide either alone or with propylene oxide.
  • Specific nonionic detergent compounds are the condensation products of aliphatic primary or secondary linear or branched alcohols with ethylene oxide, generally 5 to 40 EO, preferably 7EO to 9EO.
  • Preferred anionic detergent compounds which may be used are usually water-soluble alkali metal salts of organic sulphates and sulphonates having alkyl radicals containing from about 8 to about 22 carbon atoms, the term alkyl being used to include the alkyl portion of higher acyl radicals.
  • suitable synthetic anionic detergent compounds are sodium and potassium alkyl C10 to C20 benzene sulphonates, particularly sodium linear secondary alkyl C10 to C15 benzene sulphonates; and sodium alkyl glyceryl ether sulphates, especially those ethers of the higher alcohols derived from tallow or coconut oil and synthetic alcohols derived from petroleum.
  • the preferred anionic detergent compounds are sodium C11 to C15 alkyl benzene sulphonates. Also applicable are surfactants such as those described in EP- A-328 177 (Unilever), which show resistance to salting-out, the alkyl polyglycoside surfactants described in EP-A-070 074, and alkyl monoglycosides.
  • Preferred surfactant systems are mixtures of anionic with nonionic detergent active materials.
  • the additional surfactant is predominately anionic surfactant by weight.
  • Cleaning boosters may preferably be present in the composition.
  • the composition preferably comprises from 0.5 to 15 wt.%, more preferably from 0.75 to 15 wt.%, even more preferably from 1 to 12 wt.%, most preferably from 1.5 to 10 wt.% of cleaning boosters selected from antiredeposition polymers; soil release polymers; alkoxylated polycarboxylic acid esters as described in WO 2019/008036 and WO 2019/007636; and mixtures thereof.
  • Preferred antiredeposition polymers include alkoxylated polyamines.
  • a preferred alkoxylated polyamine comprises an alkoxylated polyethylenimine, and/or alkoxylated polypropylenimine.
  • the polyamine may be linear or branched. It may be branched to the extent that it is a dendrimer.
  • the alkoxylation may typically be ethoxylation or propoxylation, or a mixture of both. Where a nitrogen atom is alkoxylated, a preferred average degree of alkoxylation is from 10 to 30, preferably from 15 to 25.
  • a preferred material is ethoxylated polyethyleneimine, with an average degree of ethoxylation being from 10 to 30 preferably from 15 to 25, where a nitrogen atom is ethoxylated. Soil release polymer
  • the soil release polymer is a polyester soil release polymer.
  • Preferred soil release polymers include those described in WO 2014/029479 and WO 2016/005338.
  • polyester based soil release polymer is a polyester according to the following formula (I) wherein
  • R 1 and R 2 independently of one another are X-(OC2H4)n-(OC3H6)m wherein X is C1.4 alkyl and preferably methyl, the -(OC2H4) groups and the -(OCsHe) groups are arranged blockwise and the block consisting of the -(OCsHe) groups is bound to a COO group or are HO-(C3H6), and preferably are independently of one another X- (OC 2 H4)n-(OC 3 H6)m, n is based on a molar average number of from 12 to 120 and preferably of from 40 to 50, m is based on a molar average number of from 1 to 10 and preferably of from 1 to 7, and a is based on a molar average number of from 4 to 9.
  • polyester provided as an active blend comprising:
  • R 1 and R 2 independently of one another are X-(OC2H4)n-(OC3H6)m wherein X is C1.4 alkyl and preferably methyl, the -(OC2H4) groups and the -(OCsHe) groups are arranged blockwise and the block consisting of the -(OCsHe) groups is bound to a COO group or are HO ⁇ CsHe), and preferably are independently of one another X- (OC 2 H4)n-(OC 3 H6)m, n is based on a molar average number of from 12 to 120 and preferably of from 40 to 50, m is based on a molar average number of from 1 to 10 and preferably of from 1 to 7, and a is based on a molar average number of from 4 to 9 and
  • Alkoxylated polycarboxylic acid esters are obtainable by first reacting an aromatic polycarboxylic acid containing at least three carboxylic acid units or anhydrides derived therefrom, preferably an aromatic polycarboxylic acid containing three or four carboxylic acid units or anhydrides derived therefrom, more preferably an aromatic polycarboxylic acid containing three carboxylic acid units or anhydrides derived therefrom, even more preferably trimellitic acid or trimellitic acid anhydride, most preferably trimellitic acid anhydride, with an alcohol alkoxylate and in a second step reacting the resulting product with an alcohol or a mixture of alcohols, preferably with C16/C18 alcohol.
  • the cleaning composition may comprise any of these further preferred ingredients.
  • One or more of these further ingredients are particularly useful to include if the cleaning composition is a home care composition, particularly if it is a for a hand dish wash or laundry purpose.
  • Builder materials may be selected from 1) calcium sequestrant materials, 2) precipitating materials, 3) calcium ion-exchange materials and 4) mixtures thereof.
  • Examples of calcium sequestrant builder materials include alkali metal polyphosphates, such as sodium tripolyphosphate and organic sequestrants, such as ethylene diamine tetra-acetic acid.
  • precipitating builder materials examples include sodium orthophosphate and sodium carbonate.
  • Examples of calcium ion-exchange builder materials include the various types of waterinsoluble crystalline or amorphous aluminosilicates, of which zeolites are the best known representatives, e.g. zeolite A, zeolite B (also known as zeolite P), zeolite C, zeolite X, zeolite Y and also the zeolite P-type as described in EP-A-0,384,070.
  • zeolites are the best known representatives, e.g. zeolite A, zeolite B (also known as zeolite P), zeolite C, zeolite X, zeolite Y and also the zeolite P-type as described in EP-A-0,384,070.
  • composition may also contain 0-65 % of a builder or complexing agent such as ethylenediaminetetraacetic acid, diethylenetriamine-pentaacetic acid, alkyl- or alkenylsuccinic acid, nitrilotriacetic acid or the other builders mentioned below.
  • a builder or complexing agent such as ethylenediaminetetraacetic acid, diethylenetriamine-pentaacetic acid, alkyl- or alkenylsuccinic acid, nitrilotriacetic acid or the other builders mentioned below.
  • Many builders are also bleach-stabilising agents by virtue of their ability to complex metal ions.
  • Zeolite and carbonate are preferred builders.
  • the composition may contain as builder a crystalline aluminosilicate, preferably an alkali metal aluminosilicate, more preferably a sodium aluminosilicate. This is typically present at a level of less than 15 wt.%.
  • Aluminosilicates are materials having the general formula:
  • the preferred sodium aluminosilicates contain 1.5-3.5 SiC>2 units in the formula above. They can be prepared readily by reaction between sodium silicate and sodium aluminate, as amply described in the literature.
  • the ratio of surfactants to alumuminosilicate (where present) is preferably greater than 5:2, more preferably greater than 3:1.
  • phosphate builders may be used.
  • 'phosphate' embraces diphosphate, triphosphate, and phosphonate species.
  • Other forms of builder include silicates, such as soluble silicates, metasilicates, layered silicates (e.g. SKS-6 from Hoechst).
  • the laundry detergent formulation contains less than 1 wt.% of phosphate.
  • the laundry detergent formulation is carbonate built if a builder is included.
  • the composition preferably comprises a fluorescent agent (optical brightener).
  • Fluorescent agents are well known and many such fluorescent agents are available commercially. Usually, these fluorescent agents are supplied and used in the form of their alkali metal salts, for example, the sodium salts.
  • the total amount of the fluorescent agent or agents used in the composition is generally from 0.005 to 2 wt.%, more preferably 0.01 to 0.1 wt.%.
  • Preferred classes of fluorescer are: Di-styryl biphenyl compounds, e.g. Tinopal (Trade Mark) CBS-X, Di-amine stilbene di-sulphonic acid compounds, e.g. Tinopal DMS pure Xtra and Blankophor (Trade Mark) HRH, and Pyrazoline compounds, e.g. Blankophor SN.
  • Preferred fluorescers are: sodium 2 (4-styryl-3-sulfophenyl)-2H-napthol[1 ,2-d]triazole, disodium 4,4'-bis ⁇ [(4-anilino-6-(N methyl-N-2 hydroxyethyl) amino 1 ,3,5-triazin-2- yl)]amino ⁇ stilbene-2-2' disulfonate, disodium 4,4'-bis ⁇ [(4-anilino-6-morpholino-1 ,3,5-triazin-2- yl)]amino ⁇ stilbene-2-2' disulfonate, and disodium 4,4'-bis(2-sulfostyryl)biphenyl.
  • the aqueous solution used in the method has a fluorescer present.
  • a fluorescer is present in the aqueous solution used in the method it is preferably in the range from 0.0001 g/l to 0.1 g/l, preferably 0.001 to 0.02 g/l.
  • the composition preferably comprises a dye.
  • Dyes are discussed in K. Hunger (ed). Industrial Dyes: Chemistry, Properties, Applications (Weinheim: Wiley-VCH 2003). Organic dyes are listed in the colour index (Society of Dyers and Colourists and the American Association of Textile Chemists and Colorists)
  • Preferred dye chromophores are azo, azine, anthraquinone, phthalocyanine and triphenylmethane.
  • Azo, anthraquinone, phthalocyanine and triphenylmethane dyes preferably carry a net anionic charged or are uncharged.
  • Azine dyes preferably carry a net anionic or cationic charge.
  • Preferred non-shading dyes are selected are selected from blue dyes, most preferably anthraquinone dyes bearing sulphonate groups and triphenylmethane dye bearing sulphonate groups.
  • Preferred compounds are acid blue 80, acid blue 1, acid blue 3; acid blue 5, acid blue 7, acid blue 9, acid blue 1 1, acid blue 13, acid blue 15, acid blue 17, acid blue 24, acid blue 34, acid blue 38, acid blue 75, acid blue 83, acid blue 91 , acid blue 97, acid blue 93, acid blue 93:1, acid blue 97, acid blue 100, acid blue 103, acid blue 104, acid blue 108, acid blue 109, acid blue 1 10, and acid blue 213.
  • On dissolution granules with non-shading dyes provide an attractive colour to the wash liquor.
  • Shading dyes deposit to fabric during the wash or rinse step of the washing process providing a visible hue to the fabric.
  • the dye gives a blue or violet colour to a white cloth with a hue angle of 240 to 345, more preferably 260 to 320, most preferably 270 to 300.
  • the white cloth used in this test is bleached non-mercerised woven cotton sheeting.
  • Shading dyes are discussed in WO 2005/003274, WO 2006/032327(Unilever), WO 2006/032397(Unilever), WO 2006/045275(11 ni lever), WO 2006/027086(Unilever), WO 2008/017570(Unilever), WO 2008/141880(Unilever), WO 2009/132870(Unilever), WO 2009/141 173 (Unilever), WO 2010/099997(Unilever), WO 2010/102861 (Unilever), WO 2010/148624(Unilever), WO 2008/087497 (P&G), WO 2011/011799 (P&G), WO 2012/054820 (P&G), WO 2013/142495 (P&G) and WO 2013/151970 (P&G).
  • a mixture of shading dyes may be used.
  • the shading dye chromophore is most preferably selected from mono-azo, bis-azo, anthraquinone, and azine.
  • Mono-azo dyes preferably contain a heterocyclic ring and are most preferably thiophene dyes.
  • the composition comprises a perfume.
  • the perfume is preferably in the range from 0.001 to 3 wt.%, most preferably 0.1 to 1 wt.%.
  • CTFA Cosmetic, Toiletry and Fragrance Association
  • OPD Chemicals Buyers Directory 80th Annual Edition, published by Schnell Publishing Co.
  • top notes are defined by Poucher (Journal of the Society of Cosmetic Chemists 6(2):80 [1955]). Preferred top-notes are selected from citrus oils, linalool, linalyl acetate, lavender, dihydromyrcenol, rose oxide and cis-3-hexanol.
  • the laundry treatment composition does not contain a peroxygen bleach, e.g., sodium percarbonate, sodium perborate, and peracid.
  • a peroxygen bleach e.g., sodium percarbonate, sodium perborate, and peracid.
  • the composition may comprise one or more further polymers.
  • examples are carboxymethylcellulose, poly(ethylene glycol), polyvinyl alcohol), polycarboxylates such as polyacrylates, maleic/acrylic acid copolymers and lauryl methacrylate/acrylic acid copolymers.
  • Polymers present to prevent dye deposition for example poly(vinylpyrrolidone), poly(vinylpyridine-N-oxide), and poly(vinylimidazole), may be present in the formulation.
  • One or more enzymes are preferred to be present in a cleaning composition of the invention and when practicing a method of the invention.
  • the level of each enzyme in the composition of the invention is from 0.0001 wt.% to 0.1 wt.% protein.
  • enzymes include proteases, alpha-amylases, cellulases, lipases, peroxidases/oxidases, pectate lyases, and mannanases, or mixtures thereof.
  • Suitable lipases include those of bacterial or fungal origin. Chemically modified or protein engineered mutants are included. Examples of useful lipases include lipases from Humicola (synonym Thermomyces), e.g. from H. lanuginosa (T. lanuginosus) as described in EP 258 068 and EP 305216 or from H. insolens as described in WO 96/13580, a Pseudomonas lipase, e.g. from P. alcaligenes or P. pseudoalcaligenes (EP 218272), P. cepacia (EP 331 376), P. stutzeri (GB 1,372,034), P.
  • lipase variants such as those described in WO 92/05249, WO 94/01541 , EP 407 225, EP 260 105, WO 95/35381 , WO 96/00292, WO 95/30744, WO 94/25578, WO 95/14783, WO 95/22615, WO 97/04079 and WO 97/07202, WO 00/60063.
  • lipase enzymes include LipolaseTM and Lipolase UltraTM, LipexTM and lipocleanTM (Novozymes A/S).
  • the method of the invention may be carried out in the presence of phospholipase classified as EC 3.1.1 .4 and/or EC 3.1.1 .32.
  • phospholipase is an enzyme which has activity towards phospholipids.
  • Phospholipids such as lecithin or phosphatidylcholine, consist of glycerol esterified with two fatty acids in an outer (sn-1) and the middle (sn-2) positions and esterified with phosphoric acid in the third position; the phosphoric acid, in turn, may be esterified to an amino-alcohol.
  • Phospholipases are enzymes which participate in the hydrolysis of phospholipids.
  • phospholipases Ai and A2 which hydrolyze one fatty acyl group (in the sn-1 and sn-2 position, respectively) to form lysophospholipid
  • lysophospholipase or phospholipase B which can hydrolyze the remaining fatty acyl group in lysophospholipid.
  • Phospholipase C and phospholipase D release diacyl glycerol or phosphatidic acid respectively.
  • the enzyme and the photobleach may show some interaction and should be chosen such that this interaction is not negative. Some negative interactions may be avoided by encapsulation of one or other of enzyme or photobleach and/or other segregation within the product.
  • proteases include those of animal, vegetable or microbial origin. Microbial origin is preferred. Chemically modified or protein engineered mutants are included.
  • the protease may be a serine protease or a metallo protease, preferably an alkaline microbial protease or a trypsin-like protease.
  • Preferred commercially available protease enzymes include AlcalaseTM, SavinaseTM, PrimaseTM, DuralaseTM, DyrazymTM, EsperaseTM, EverlaseTM, PolarzymeTM, and KannaseTM, (Novozymes A/S), MaxataseTM, MaxacaiTM, MaxapemTM, ProperaseTM, PurafectTM, Purafect OxPTM, FN2TM, and FN3TM (Genencor International Inc.).
  • the method of the invention may be carried out in the presence of cutinase classified in EC 3.1.1 .74.
  • the cutinase used according to the invention may be of any origin.
  • cutinases are of microbial origin, in particular, of bacterial, of fungal or of yeast origin.
  • Suitable amylases include those of bacterial or fungal origin.
  • Amylases include, for example, alpha-amylases obtained from Bacillus, e.g. a special strain of B. lichen iformis, described in more detail in GB 1,296,839, or the Bacillus sp. strains disclosed in WO 95/026397 or WO 00/060060.
  • Commercially available amylases are DuramylTM, TermamylTM, Termamyl UltraTM, NatalaseTM, StainzymeTM, FungamylTM and BANTM (Novozymes A/S), RapidaseTM and PurastarTM (from Genencor International Inc.).
  • Suitable cellulases include those of bacterial or fungal origin. Chemically modified or protein engineered mutants are included. Suitable cellulases include cellulases from the genera Bacillus, Pseudomonas, Humicola, Fusarium, Thielavia, Acremonium, e.g. the fungal cellulases produced from Humicola insolens, Thielavia terrestris, Myceliophthora thermophila, and Fusarium oxysporum disclosed in US 4,435,307, US 5,648,263, US 5,691 ,178, US 5,776,757, WO 89/09259, WO 96/029397, and WO 98/012307.
  • cellulases include CelluzymeTM, CarezymeTM, CellucleanTM,
  • RenozymeTM Novozymes A/S
  • ClazinaseTM and Puradax HATM (Genencor International Inc.)
  • KAC-500(B)TM Kao Corporation
  • Suitable peroxidases/oxidases include those of plant, bacterial or fungal origin.
  • peroxidases Chemically modified or protein engineered mutants are included.
  • useful peroxidases include peroxidases from Coprinus, e.g. from C. cinereus, and variants thereof as those described in WO 93/24618, WO 95/10602, and WO 98/15257.
  • Commercially available peroxidases include GuardzymeTM and NovozymTM 51004 (Novozymes A/S).
  • Any enzyme present in the composition may be stabilized using conventional stabilizing agents, e.g., a polyol such as propylene glycol or glycerol, a sugar or sugar alcohol, lactic acid, boric acid, or a boric acid derivative, e.g., an aromatic borate ester, or a phenyl boronic acid derivative such as 4-formylphenyl boronic acid, and the composition may be formulated as described in e.g. WO 92/19709 and WO 92/19708.
  • a polyol such as propylene glycol or glycerol
  • a sugar or sugar alcohol lactic acid, boric acid, or a boric acid derivative, e.g., an aromatic borate ester, or a phenyl boronic acid derivative such as 4-formylphenyl boronic acid
  • alkyl groups are sufficiently long to form branched or cyclic chains, the alkyl groups encompass branched, cyclic and linear alkyl chains.
  • the alkyl groups are preferably linear or branched, most preferably linear.
  • indefinite article “a” or “an” and its corresponding definite article “the” as used herein means at least one, or one or more, unless specified otherwise.
  • PAS Sodium Lauryl Sulphate (SLS) - Stepanol WA-Extra HP - Stepan HS - Lauryl Hydroxy Sultaine (HS) - Mackam LHS-GN - Solvay R2 - Rhamnolipid - Rewoferm - Evonik
  • the PAS, PAS:HS and the PAS:R2 were 14 wt.% surfactant active compositions which were dosed at 2g/L.
  • the PAS:HS:R2 was a 17 wt.% surfactant active composition which was dosed at 1.65g/L. This was done to equalise the surfactant active level in use between all of the tested compositions.
  • the cleaning results are shown in Figure 1.
  • the cleaning performance is measured by ASRI, which measures the stain removal performance of the compositions in table 1.
  • the ASRI is the improvement in stain removal from treatment using the composition versus the stained article.
  • Figure 1 shows the advantageous effect of the combination of a rhamnolipid biosurfactant and amphoteric surfactant to improve the cold cleaning performance at 10°C of primary alkyl sulfate surfactant containing cleaning compositions.
  • the performance of PAS drops off at such low temperatures (10°C) compared to 25°C. While the inclusion of either biosurfactant (rhamnolipid) or amphoteric surfactant (while keeping the overall surfactant level the same) improves the cleaning somewhat, only the combination of the biosurfactant (rhamnolipid) and amphoteric surfactant together improve the cold cleaning (10°C) performance of the PAS surfactant to a level above that seen for PAS alone at to 25°C.

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  • Engineering & Computer Science (AREA)
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  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Detergent Compositions (AREA)

Abstract

L'invention concerne l'utilisation d'une combinaison d'un biotensioactif rhamnolipidique et d'un tensioactif amphotère choisi parmi des bétaïnes, des glucamides et des sultaïnes pour améliorer les performances de nettoyage à froid à des températures inférieures à 15 °C, de préférence inférieures à 12 °C, de préférence encore 10 °C et moins, d'un tensioactif de sulfate d'alkyle primaire contenant des compositions de nettoyage, le sulfate d'alkyle primaire étant un sulfate d'alkyle C10-C20.
EP21823926.7A 2020-12-17 2021-12-10 Utilisation et composition de nettoyage Pending EP4263771A1 (fr)

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