Closure

1 . A closure for a bottle, the closure being dispersible in a aqueous medium, the closure comprising a first component and a second component, each component defining a seal enclosing a volume within the bottle, wherein the dispersion of each component is activated by a different means.

2 . A closure according to claim 1 , wherein the first component of the closure is insoluble in water.

3 . A closure according to claim 1 wherein the dispersion of the first component of the closure is triggered by an elevated temperature mechanism.

4 . A closure according to claim 3 , wherein the elevated temperature is between 30° C.-90° C.

5 . A closure according to claim 1 , wherein the first component of the closure comprises a wax.

6 . (canceled)

7 . A closure according to claim 1 , wherein the dispersion of the second component of the closure is triggered by contact with an aqueous medium.

8 . (canceled)

9 . A closure according to claim 7 wherein the second component comprises a water soluble polymer.

10 . A closure according to claim 9 , wherein the water soluble polymer comprises a polymer selected from polyvinyl alcohol, polylactic acid, polyvinyl pyrrolidone or a mixture thereof.

11 . (canceled)

12 . A closure according to claim 7 , wherein the second component of the closure has no or only a limited solubility at a pH-value above 10 and, at a pH-value below 9, has a solubility such that it becomes dissolved.

13 . A closure according to claim 12 , wherein the component comprises a pH-sensitive polymer incorporating a repeat unit having a basic function, separate from the backbone chain of the polymer.

14 . A closure according to claim 13 , wherein the repeat unit is based on a compound selected from the group consisting of vinyl alcohol derivatives, acrylates and alkyl acrylates having said basic function.

15 . A closure according to claim 13 , wherein the polymer is a carbohydrate functionalised with the basic function.

16 . A closure according to claim 13 wherein the basic function is an amine.

17 . A closure according to claim 16 , in which the repeat unit is based on a compound of formula III:

in which G is a linking group selected from —COO—, —OCO—, —CONH—, —NHCO—, —NHCONH—, —NHCOO—, —OCONH— or —OCOO—,

each R 1 is, independently, hydrogen or an alkyl group with 1 to 3 carbon atoms,

each R 2 is, independently, hydrogen or an alkyl group with 1 to 5 carbon atoms,

and x is an integer from 1 to 6.

18 . A closure according to claim 16 , in which the repeat unit is based on a compound of formula IV:

in which R 1 is hydrogen or an alkyl group with 1 to 3 carbon atoms, each R 2 is, independently, hydrogen or alkyl group with 1 to 5 carbon atoms, and x is an integer from 1 to 6.

19 . A closure according to claim 1 , wherein the components of the closure are arranged in a two layer structure.

20 . A closure according to claim 19 , wherein the closure is disposed within or adjacent to a dispensing aperture of the bottle.

21 . A closure according to claim 19 , wherein the layers abut against one another.

22 . A closure according to claim 19 , wherein a first layer is disposed within or adjacent to a dispensing aperture of the bottle defining a first seal and a second layer is disposed across a lower portion of the bottle defining a second seal.

23 . (canceled)

24 . A bottle for use in a washing machine, the bottle comprising a two component closure dispersible in an aqueous medium, each component defining a seal enclosing a volume within the bottle, wherein the dispersion of each component is activated by a different means.

25 . A bottle comprising a closure according to claim 1 .

26 . A bottle according to claim 25 wherein the components of the closure are arranged in a two layer structure.

27 . A bottle according to claim 26 , wherein the closure is disposed within or adjacent to a dispensing aperture of the bottle.

28 . (canceled)

29 . A bottle according to claim 26 , wherein a first layer is disposed within or adjacent to a dispensing aperture of the bottle defining a first seal and a second layer is disposed across a lower portion of the bottle defining a second seal.

30 . A bottle according to claim 25 , wherein the bottle has two compartments with each compartment being sealed by a different component of the closure.

31 . A bottle according to claim 30 , wherein the two compartments are formed by a division extending from adjacent a dispensing aperture of the bottle to the base of the bottle.

32 . (canceled)

33 . A bottle according to claim 25 containing a detergent composition, wherein a portion of the composition is sealed by a first component of the closure and a second potion is sealed by a second portion of the closure.

34 . A bottle according to claim 33 , wherein the detergent composition is a machine dishwashing detergent composition.

35 . (canceled)

36 . A bottle according to claim 25 , wherein the bottle comprises an additional sealing means.

37 . (canceled)