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1. WO2020109022 - PRESERVED CLEANING COMPOSITIONS

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[ EN ]

Claims

1. A liquid detergent composition comprising:

a) 1 to 50% by weight of a non-ionic surfactant,

b) 0.1 to 5% by weight of a preservation system comprising a short chain (Ci to Ce), unsaturated, organic acid or salt thereof having at least two carboxyl groups,

c) water;

and wherein the non-ionic surfactant provides at least 90 wt.% of the total amount by weight of surfactant contained in the composition;

wherein the short chain unsaturated organic acid is itaconic acid or salt thereof.

2. The composition according to any of the preceding claims wherein the pH is in the range of 2 to 12, more preferably in the range of 2 to 1 1 , even more preferably in the range of 3 to 10, most preferably in the range 3 to 7.

3. The composition according to any of the preceding claims, wherein the non-ionic

surfactant is selected from the group consisting of primary alcohol ethoxylates, secondary alcohol ethoxylates, alkylphenol ethoxylates, alkylaminoalkoxylates, alkylpolyoxyether, ethylene-oxide-propylene oxide condensates on primary alkanols, tertiary amino oxides alkylpolyglycosyls and mixtures thereof, preferably a primary or secondary alcohol ethoxylate.

4. The composition according to according to any of the preceding claims, wherein the non-ionic surfactant comprises an alkylaminoalkoxylate according to the formula:

R-N(H)-(CH2CH20)x-(CH2CH2CH20)y

where:

R is a linear or branched hydrocarbon radical containing

1 to 12 carbon atoms; and,

X and y are integer numbers selected so that the total molecular weight of the surfactant exhibits an average molecular weight of from about 2000 to about 8000.

5. The composition according to according to any of the preceding claims, wherein the nonionic surfactant comprises an alkylpolyoxyether according to the formula:

CxHy-0-(CH2C(CH3)CH0)n-(CH2CH20)m-H

where:

x is from 6-24;

y is from 17-49;

m is from 0-10 and n is from 1-40;

wherein the total molecular weight of the surfactant exhibits an average molecular weight of from about 500 to about 8000.

6. The composition according to according to any of the preceding claims, wherein the non-ionic surfactant comprises an amine oxide according to the formula:

R1R2R3N-0,

where R1 is an alkyl group of 8 to 20 carbon atoms and R2 and R3 are each alkyl or hydroxyalkyl groups of 1 to 3 carbon atoms.

7. The composition according to any of the preceding claims, wherein the non-ionic

surfactant comprises an alkylpolyglycosyl containing a Ce-22 fatty alcohol residue, more preferably a Ce-ie fatty alcohol residue, wherein the glycosyl residue of the alkyl polyglycoside preferably comprises a linear oligo- or polysaccharide.

8. The composition according to any of the preceding claims, wherein the non-ionic

surfactant is lauryl alcohol condensed with 5, 7 and 9 moles of ethylene oxide (Laureth 5, Laureth 7 and Laureth 9), condensates of 2 to 30 moles of ethylene oxide with sorbitan mono- and tri-Cio-C2o alkanoic acid esters having a HLB of 8 to 15, preferably polyoxyethylene (4) sorbitan monolaurate, polyoxyethylene (4) sorbitan monostearate, polyoxyethylene (20) sorbitan trioleate and polyoxyethylene (20) sorbitan tristearate.

9. The composition according to any of the preceding claims, wherein the preservative system further comprises an additional preservation chemical selected from an aromatic alcohol, benzoic acid or a salt thereof, terpineol, geraniol, perillyl alcohol, menthol, terpinene, linalool, citronellol and mixtures thereof.

10. The composition according to any of the preceding claims, comprising at least 0.5% by weight of itaconic acid.

1 1. The composition according to any of the preceding claims, comprising 60-90% by weight of water.

12. The composition according to any of the preceding claims, comprising less than 1% by weight of silicone.

13. A method for cleaning a hard surface comprising the steps of diluting 1 part of a composition according to claims 1-10 with 2-50 parts water to provide a cleaning solution and contacting the hard surface with the cleaning solution.

14. A method of preserving a cleaning composition comprising the steps of combining a short chain (Ci to Ce), unsaturated, organic acid or salt thereof having at least two carboxyl groups, wherein the short chain unsaturated organic acid is itaconic acid or salt thereof, with a nonionic surfactant.