Detergent composition
View Patent ↗The invention provides a solid dishwashing detergent composition comprising an amount of from 0.01 to 10 % wt of one or more anionic polyesters. The compositions exhibit good drying properties, especially on plasticware.
1. A solid dishwashing detergent composition comprising an amount of from 0.01 to 10% wt of one or more anionic polyesters comprising structural units:
in which;
R 1 is H and/or methyl,
R 2 is methyl,
m and o represent, independently of each other, a number from 1 to 200, n represents a number from 1 to 5 x represents a number from 1 to 30, y represents a number from 1 to 25, and z represents a number from 0.05 to 15, with the proviso that x+y≧2 and z>0,
and wherein, the polyester exhibits a softening point above 40° C. and over 6% solubility by weight in water of 3° German hardness at 20° C.
2. A dishwashing detergent composition according to claim 1 , wherein m and o represent a number from 1 to 5.
3. A dishwashing detergent composition according to claim 1 , wherein o and m=1, and n represents a number from 1 to 5.
4. A dishwashing detergent composition according to claim 1 , wherein x represents a number from 2 to 15.
5. A dishwashing detergent composition according to claim 1 , wherein y represents a number from 1 to 10.
6. A dishwashing detergent composition according to claim 1 , wherein z represents a number from 0.1 to 10.
7. A dishwashing detergent composition according to claim 1 , wherein the polyester has a softening point between 41° C. and 200° C.
8. A dishwashing detergent composition according to claim 7 , wherein the polyester has a softening point between 80° C. and 150° C.
9. A dishwashing detergent composition according to claim 1 , wherein the composition is an automatic dishwashing detergent composition.
10. A dishwashing detergent composition according to claim 1 , comprising 0.05 to 5% wt of the one or more polyesters.
11. A dishwashing detergent composition according to claim 1 , wherein composition is in the form of a shaped body.
12. A dishwashing detergent composition according to claim 11 , wherein the shaped body is a tablet.
13. A dishwashing detergent composition according to claim 1 , wherein the composition comprises two or more distinct regions.
14. A dishwashing detergent composition according to claim 13 , wherein the polyester is predominantly located in one of the two or more distinct regions.
15. A dishwashing detergent composition according to claim 1 , wherein the composition further comprises a bleaching compound.
16. A dishwashing detergent composition according to claim 15 , wherein the bleaching compound is present in an amount of from 1 to 60 wt % based on the total weight of the composition.
17. A dishwashing detergent composition according to claim 15 , wherein the bleaching compound is selected from the group consisting of inorganic peroxides and organic peracids, derivatives thereof and mixtures thereof.
18. A dishwashing detergent composition according to claim 13 , wherein the bleaching compound is predominantly located in one of the two or more distinct regions.
19. A dishwashing detergent composition according to claim 15 , wherein the bleaching compound and the polyester(s) are predominantly located in separate distinct regions of the composition.
20. A dishwashing detergent composition according to claim 15 , wherein the bleaching compound is located in a first distinct region and the polyester is located in a second distinct region.
21. A dishwashing operation comprising the step of: supplying a dishwashing detergent composition according to claim 1 to an automatic dishwashing machine.
22. A method for providing improved drying of cleansed articles which comprises the step of: supplying a dishwashing detergent composition according to claim 1 to an automatic dishwashing machine.
23. A method for cleaning plasticware in a dishwashing operation comprising the step of: supplying a dishwashing detergent composition according to claim 1 to an automatic dishwashing machine.