Detergent composition

Patent metadata

Field	Value
Publication number	US-10287532-B2
Application number	US-201013500338-A
Country	US
Kind code	B2
Filing date	Oct 6, 2010
Priority date	Oct 9, 2009
Publication date	May 14, 2019
Grant date	May 14, 2019

Abstract

A liquid hard surface detergent composition comprising a liquid mixed alkoxylate fatty alcohol non-ionic surfactant comprising a greater number of the lower higher alkoxylate group than the higher alkoxylate group in the molecule and a builder. The compositions provide good shine/anti-spotting characteristics on hard surfaces and are especially suitable for use as automatic dishwashing compositions.

First claim

The invention claimed is:

1. A method of automatic dishwashing, wherein the method comprises the steps of:
carrying out at least one main washing cycle and at least one rinse cycle in an automatic dishwashing machine; and
providing a composition to the automatic dishwashing machine during the at least one main washing cycle;
wherein the composition is a liquid automatic dishwashing detergent composition comprising:
a liquid mixed alkoxylate fatty alcohol non-ionic surfactant comprising at least one lower alkoxylate group and at least one higher alkoxylate group, wherein there is a greater number of moles of the lower alkoxylate group than of the higher alkoxylate group in the molecule, wherein the liquid mixed alkoxylate fatty alcohol non-ionic surfactant has the formula:
R1-[EO] n -[PO] m -[BO] p -Bu q

wherein:
R1 is an alkyl group of between C8 and C20;
EO is ethylene oxide;
PO is propylene oxide;
BO is butylene oxide;
Bu is butylene;
n is an integer from 6 to 10;
m is an integer from 3 to 5;
p is 0;
q is 0; and

a builder.

2. The method according to claim 1 , wherein the liquid automatic dishwashing detergent composition is a gel.

3. The method according to claim 1 , wherein the liquid mixed alkoxylate fatty alcohol non-ionic surfactant comprises 4 moles of PO and 8 moles of EO in the molecule.

4. The method according to claim 1 , wherein the liquid automatic dishwashing detergent composition comprises 2 to 30% wt of the liquid mixed alkoxylate fatty alcohol non-ionic surfactant.

5. The method according to claim 1 , wherein the builder is selected from phosphate-containing builders, polycarboxylic acids and their salts and amino acid based builders.

6. The method according to claim 5 , wherein the builder is selected from tripolyphosphates, citrates, MGDA and GLDA and salts or derivatives and mixtures thereof.

7. The method according to claim 1 , wherein the liquid automatic dishwashing detergent composition further comprises a polymer.

8. The method according to claim 7 , wherein the polymer is a sulphonated polymer.

9. The method according to claim 8 , wherein the sulphonated polymer comprises monomers of a carboxylic acid or a salt thereof and a sulphonated monomer.

10. The method according to claim 1 , wherein the liquid automatic dishwashing detergent composition further comprises additional non-ionic surfactant.

11. The method according to claim 1 , wherein the liquid automatic dishwashing detergent composition is prepared at a temperature in the range of from 25-80° C.

12. The method according to claim 11 , wherein the liquid automatic dishwashing detergent composition is prepared at a temperature in the range of from 30-50° C.

13. The method according to claim 1 , wherein the liquid automatic dishwashing detergent composition is in the form of a unit dose and is enveloped in a water soluble or water dispersible package.

14. The method according to claim 13 , wherein the water soluble or water dispersible package has a plurality of compartments.

15. The method according to claim 13 , wherein the water soluble or water dispersible package comprises polymeric packaging material.

16. The method according to claim 15 , wherein the polymeric packaging material is selected from polyvinyl alcohol, celluloses and cellulose derivatives, starches, gelatine, polyglycolides, gelatine and polylactides copolymers or a mixture or co-polymer thereof.

17. The method according to claim 1 , wherein the liquid mixed alkoxylate fatty alcohol non-ionic surfactant is derived from a linear chain fatty alcohol having 12-15 carbon atoms.

18. The method according to claim 1 , wherein the liquid mixed alkoxylate fatty alcohol non-ionic surfactant has at least 10 moles of alkylene oxide per mole of alcohol.

19. The method according to claim 1 , wherein the liquid automatic dishwashing detergent composition comprises at least 2 wt % of the liquid mixed alkoxylate fatty alcohol non-ionic surfactant.

20. The method according to claim 1 , wherein the liquid automatic dishwashing detergent composition comprises at least 10 wt % of the builder.

21. The method according to claim 1 , wherein any solvent included in the liquid automatic dishwashing detergent composition is present in an amount of no more than 10 wt %.

22. The method according to claim 1 , wherein the liquid mixed alkoxylate fatty alcohol non-ionic surfactant comprises 4 or 5 moles of PO and 7 or 8 moles of EO.

23. The method according to claim 1 , wherein the liquid mixed alkoxylate fatty alcohol non-ionic surfactant is derived from a linear chain fatty alcohol having 12-18 carbon atoms.

Assignees

• Krubasik Lucia
• Preuschen Judith
• Stein Andrea
• Roy Pavlinka
• Reckitt Benckiser Finish Bv

Inventors

• Krubasik Lucia
• Preuschen Judith
• Stein Andrea
• Roy Pavlinka

Classifications

• C11D1/8255

  containing a combination of compounds differently alcoxylised or with differently alkylated chains · CPC title

• C11D3/10

  Carbonates {; Bicarbonates} · CPC title

• C11D1/722 Primary

  Ethers of polyoxyalkylene glycols having mixed oxyalkylene groups; {Polyalkoxylated fatty alcohols or polyalkoxylated alkylaryl alcohols with mixed oxyalkylele groups (C11D1/721 takes precedence)} · CPC title

• C11D17/044

  Solid compositions · CPC title

• C11D3/3942

  Inorganic per-compounds (C11D3/3902 takes precedence) · CPC title