Automatic dishwashing composition

Patent metadata

Field	Value
Publication number	US-10815451-B2
Application number	US-201515314656-A
Country	US
Kind code	B2
Filing date	Jun 1, 2015
Priority date	May 30, 2014
Publication date	Oct 27, 2020
Grant date	Oct 27, 2020

Abstract

The present invention relates to an improved detergent composition for use in the protection of non-metallic inorganic materials such as glassware in automatic ware washing machines.

First claim

The invention claimed is:

1. An automatic dishwasher detergent composition comprising:
a polyethyleneimine; and
an anionic surfactant,
wherein the polyethyleneimine is contained within one or both a gel and liquid phase of the composition,
wherein the amount of the polyethyleneimine is less than 0.5% by weight of the composition,
wherein the anionic surfactant is no more than 4% by weight of the composition,
wherein the gel and/or liquid phase contains no more than 5% water by weight of the gel and/or liquid phase, and
wherein the composition is contained within a water soluble film or container.

2. The composition as claimed in claim 1 , wherein the composition comprises less than 0.25% by weight of the polyethyleneimine.

3. The composition as claimed in claim 1 , wherein the composition consists of the gel phase.

4. The composition as claimed in claim 1 , wherein the composition comprises at least two separate phases.

5. The composition as claimed in claim 4 , wherein one of the at least one two separate phases is the solid phase selected from the group consisting of powder, granules, and a compressed solid.

6. The composition as claimed in claim 1 , wherein the composition comprises at least 10% by weight builder.

7. The composition as claimed in claim 1 , wherein the composition comprises one or more of protease, amylase, and bleach.

8. The composition as claimed in claim 1 , wherein the polyethyleneimine has a molecular weight between 100 and 2500.

9. The composition as claimed in claim 1 , wherein the polyethyleneimine is a liquid ingredient at room temperature.

10. A product comprising the composition as claimed in claim 1 , which is in a unit dose form.

11. A method of automatic dishwashing comprising:
supplying a composition as claimed in claim 1 to an automatic dishwasher; and
releasing the composition into a wash cycle of the automatic dishwasher.

12. The method as claimed in claim 11 further comprising washing glassware in the automatic dishwasher.

13. The composition as claimed in claim 1 , wherein the composition comprises between 0.0001 and 0.0025% by weight of the polyethyleneimine.

14. The composition as claimed in claim 1 , wherein the composition consists of the liquid phase.

15. The composition as claimed in claim 1 , wherein the gel or liquid phase which comprises the polyethyleneimine comprises at least 10% surfactant by weight of the gel or liquid phase.

16. The composition as claimed in claim 1 , wherein the polyethyleneimine has a molecular weight between 700 and 900.

17. The composition as claimed in claim 1 , wherein the polyethyleneimine contains no alkoxylate groups.

18. The composition as claimed in claim 1 , wherein the polyethyleneimine is homopolymeric.

19. The composition as claimed in claim 1 , wherein the polyethyleneimine contains primary, secondary and tertiary amine groups, and has a ratio of primary to secondary amine groups between 1:0.5 and 1:1.

20. An automatic dishwasher detergent composition comprising:
a polyethyleneimine;
water; and
an anionic surfactant,

wherein the polyethyleneimine is contained within one or both a gel and liquid phase of the composition,
wherein the amount of the polyethyleneimine is less than 0.5% by weight of the composition,
wherein the composition comprises no more than 4% by weight of the anionic surfactant,
wherein the water is present in one or both the gel and liquid phase in an amount of no more than 5% by weight of the gel and/or liquid phase, and
wherein the composition is contained within a water soluble film or container.

Assignees

• Reckitt Benckiser Brands Ltd

Inventors

• Schmaelzle Claudia
• Roy Pavlinka

Classifications

• C11D3/395

  Bleaching agents · CPC title

• C11D3/37

  Polymers {(polymeric surface-active agents C11D1/008; polysaccharides C11D3/222)} · CPC title

• C11D17/0004

  Non aqueous liquid compositions comprising insoluble particles · CPC title

• C11D17/043

  Liquid or thixotropic (gel) compositions · CPC title

• C11D3/3723 Primary

  Polyamines or polyalkyleneimines · CPC title