Cleaning composition

• US 20060079425A1
• Filed: 11/15/2005
• Published: 04/13/2006
• Est. Priority Date: 11/14/2001
• Status: Active Grant

• Current Assignee: Alison Lesley Main, Anju Deepali Massey Brooker, James Iain Kinloch, Neha Kapur
• Original Assignee: Alison Lesley Main, Anju Deepali Massey Brooker, James Iain Kinloch, Neha Kapur
• Inventors: Main, Alison Lesley, Kinloch, James Iain, Brooker, Anju Deepali Massey, Kapur, Neha
• Granted Patent: US 7,282,472 B2
• Time in Patent Office: Days
• US Class Current: 510/220
• CPC Class Codes: C11D 17/042 Water soluble or water disintegrable containers or substrates containing cleaning compositions or additives for cleaning compositions
• CPC Class Codes: C11D 3/06 Phosphates, including polyphosphates
• CPC Class Codes: C11D 3/08 Silicates
• CPC Class Codes: C11D 3/10 Carbonates ; Bicarbonates
• CPC Class Codes: C11D 3/378 (Co)polymerised monomers containing sulfur, e.g. sulfonate

Abstract

An automatic dishwashing composition in unit dose form for delivery into the main-wash cycle of an automatic dishwashing machine, the composition comprising a phosphate or non-phosphate detergency builder and a sulfonated anti-scaling polymer.

Claims

1. An automatic dishwashing composition in unit dose form for delivery into the main-wash cycle of an automatic dishwashing machine, the composition comprising a phosphate or non-phosphate detergency builder and an amount of a sulfonated anti-scaling polymer sufficient to provide at least about 125 ppm of polymer by weight of the wash liquor.

2. An automatic dishwashing composition according to claim 1 wherein the amount of polymer is sufficient to provide at least about 140 ppm of polymer by weight of the wash liquor.

3. An automatic dishwashing composition according to claim 2 wherein the amount of polymer is sufficient to provide at least about 160 ppm of polymer by weight of the wash liquor.

6. An automatic dishwashing composition according to claim 1 wherein the polymer is present in a level from about 3% to about 6% by weight of the composition.

7. An automatic dishwashing composition according to claim 1 wherein the builder and the polymer are in a weight ratio of from about 5:

1 to about 15;

1.

8. An automatic dishwashing composition according to claim 1 having a pH in the wash liquor of from about 9 to about 11.

9. An automatic dishwashing composition according to claim 1 further comprising a detergency enzyme.

10. An automatic dishwashing composition according to claim 9 wherein the detergency enzyme is a proteolytic enzyme.

11. An automatic dishwashing composition according to claim 1 wherein the unit dose form is adapted to provide from about 10 to about 40 g of the dishwashing detergent composition into the main wash cycle of a dishwashing machine.

12. An automatic dishwashing product in the form of a pouch, capsule or ampoule and which comprises a unit dose of an automatic dishwashing composition according to claim 1.

13. An automatic dishwashing product according to claim 12 in the form of a multi-compartment pouch, capsule or ampoule.

14. An automatic dishwashing product according to claim 13 wherein at least two of the compartments have a different disintegration rate or dissolution profile under in-use conditions.

15. An automatic dishwashing product according to claim 14 wherein at least one of the compartments is made of a material which is substantially insoluble in cold water at or below about 20°

C. and soluble in warm water at or above about 30°

C. and wherein at least one other compartment is made of a material which is soluble in cold water at or below 20°

C.

16. An automatic dishwashing product according to claim 14 comprising a first compartment containing a liquid composition and a second compartment containing a solid composition said first compartment being made of a warm water-soluble material and said second compartment being made of a cold water-soluble material.

17. An automatic dishwashing product according to claim 16 wherein the liquid and solid compositions are in a weight ratio of from about 1:

30 to about 30;

1.

18. An automatic dishwashing product according to claim 16 wherein the liquid composition comprises the anti-scaling polymer and further comprises a detergency enzyme.

19. An automatic dishwashing product according to claim 16 wherein the liquid composition comprises a surfactant.

4. An automatic dishwashing composition in unit dose form for delivery into the main-wash cycle of an automatic dishwashing machine, the composition comprising a carbonate source and an alkaline silicate in a weight ratio of at least about 3.5 and a sulfonated anti-scaling polymer in a weight ratio of carbonate source to polymer of at least about 4.

5. An automatic dishwashing composition according to claim 4 wherein the carbonate source is selected from carbonate, bicarbonate, percarbonate and mixtures thereof and wherein the silicate is free of metasilicate.

20. An automatic dishwashing product in the form of a multi-compartment pouch, capsule or ampoule for delivery into the main-wash cycle of an automatic dishwashing machine and which comprises a unit dose of an automatic dishwashing composition comprising a phosphate or non-phosphate detergency builder, a detergency enzyme, and a sulfonated anti-scaling polymer, wherein the dishwashing product includes at least two compartments having a different disintegration rate or dissolution profile under in-use conditions, and wherein said compartment having the slower disintegration or dissolution rate incorporates the anti-scaling polymer.

21. An automatic dishwashing product according to claim 20 wherein the anti-scaling polymer is present in an amount sufficient to provide a concentration of at least 125 ppm in the wash liquor.