Dishwasher detergent comprising a liquid non-ionic surfactant and at least two solid non-ionic surfactants

1. A dishwasher detergent composition comprising:

a compound of formula 1;

wherein the compound of formula 1 has a MW of at least 15,000,

a liquid non-ionic surfactant; and

at least two solid non-ionic surfactants, each having a melting point of >35° C.

2. A composition according to claim 1 comprising from 5 to 50 wt % of the compound of Formula 1.

3. A composition according to claim 1 comprising at least 0.5 wt % of the liquid non-ionic surfactant.

4. A composition according to claim 1 comprising no more than 10 wt % of the liquid non-ionic surfactant.

5. A composition according to claim 1 comprising at least 0.1 wt % of at least two solid non-ionic surfactants.

6. A composition according to claim 1 comprising no more than 10 wt % of at least two solid non-ionic surfactants.

7. A composition according to claim 1 which further comprises a biodegradable builder selected from the group consisting of sodium citrate, sodium iminodisuccinate, sodium hydroxyiminodisuccinate, sodium methylglycine diacetic acid and glutamic diacetic acid sodium salt.

8. A composition according to claim 7 , wherein the biodegradable builder is sodium citrate.

9. A composition according to claim 1 wherein the liquid non-ionic surfactant has fast wetting properties on glass, plastic and metal surfaces such that at least 90% of the surface is wetted in less than 30 seconds.

10. A composition according to claim 1 wherein the liquid non-ionic surfactant has the general formula

R 1 -[EO] n -[PO] m -[BO] p -Bu q

wherein:

R 1 is an alkyl group of between C 8 and C 20 ;

EO is ethylene oxide;

PO is propylene oxide;

BO is butylene oxide;

Bu is butylene;

n and m are integers from 1 to 15;

p is an integer from 0 to 15; and,

q is 0 or 1.

11. A composition according to claim 1 which comprises:

5 to 50 wt % of a compound of formula 1;

at least 0.5 wt % of a liquid non-ionic surfactant; and

at least 0.1 wt % of at least two solid non-ionic surfactants.

12. A composition according to claim 11 which comprises:

15 to 40 wt % of a compound of formula 1;

0.5 to 10 wt % of a liquid non-ionic surfactant; and

0.1 to 10 wt % of at least two solid non-ionic surfactants.

13. A composition according to claim 12 which comprises:

20 to 35 wt % of a compound of formula 1;

0.5 to 2.5 wt % of a liquid non-ionic surfactant;

0.1 to 3.0 wt % of a combination of at least two solid non-ionic surfactants;

30 to 45 wt % of citric acid or a salt thereof;

10 to 20 wt % of a bleach; and,

0.5 to 2.5 wt % of an enzyme granule.

14. A composition according to claim 1 which comprises no more than 5 wt % of a polyacrylate polymer.

15. A composition according to claim 1 which comprises no more than 25 wt % of sodium tripolyphosphate (STPP).

16. A method of dishwashing the method comprising the steps of:

providing a composition according to claim 1 to an automatic dishwasher, and,

operating the automatic dishwasher.

17. A composition according to claim 1 in the form of a powder, a gel, a tablet, a PVOH rigid capsule with more than one compartment, a PVOH film blister filled with solid or liquid composition.

18. An automatic dispenser adapted for use in a dishwasher containing one or more doses of a composition according to claim 1 .