Automatic dishwashing composition

Patent metadata

Field	Value
Publication number	US-12516271-B2
Application number	US-202117996359-A
Country	US
Kind code	B2
Filing date	Apr 8, 2021
Priority date	Apr 23, 2020
Publication date	Jan 6, 2026
Grant date	Jan 6, 2026

Abstract

An automatic dishwashing composition comprising polyepoxysuccinic acid (PESA) or derivatives thereof.

First claim

The invention claimed is:

1 . An automatic dishwashing composition, comprising:
from 0.1 to 20% by weight of polyepoxysuccinic acid (PESA) or derivatives thereof; from 1 to 10% by weight of one or more acrylic acid-sulphonic copolymers; from 0.1 to 5% by weight of one or more acrylic acid-maleic acid copolymers; and citric acid and/or a salt thereof; and wherein the composition is contained in a water-soluble multi-compartment container; and wherein the composition does not comprise methyl glycine diacetic acid (MGDA).

2 . The composition according to claim 1 , wherein the derivative of PESA has the general structure:

wherein R is a hydrogen or organic chain, n is 2 to 100, and M is a cation.

3 . The composition according to claim 1 , comprising PESA in an amount of from 0.1 to 15% by weight, based on the total weight of the composition.

4 . The composition according to claim 1 , further comprising from 3 to 25% by weight of one or more nonionic surfactants, based on the total weight of the composition.

5 . The composition according to claim 4 , wherein the one or more nonionic surfactants comprises a mixed alkoxylate fatty alcohol non-ionic surfactant.

6 . The composition according to claim 5 , wherein the mixed alkoxylate fatty alcohol non-ionic surfactant comprises at least two alkoxylate groups comprising a higher alkoxylate group and a lower alkoxylate group, wherein the higher alkoxylate group has a higher number of carbon atoms than the lower alkoxylate group, and wherein the non-ionic surfactant has a greater number of moles of the lower alkoxylate group than of the higher alkoxylate group.

7 . The composition according to claim 6 , wherein each of the higher and lower alkoxylate groups is selected from the group consisting of an ethoxylate (EO) group, a propoxylate (PO) group, and a butoxylate (BO) group.

8 . The composition according to claim 7 , wherein the lower alkoxylate group is an EO group, and the higher alkoxylate group is a PO group.

9 . The composition according to claim 1 , wherein the multi-compartment container comprises a composition in the form of a solid, liquid, gel or paste and at least one further composition in the form of a solid, liquid, gel or paste.

10 . The composition according to claim 9 , wherein the PESA is present in a solid composition.

11 . A method of automatic dishwashing comprising providing the composition as defined in claim 1 to an automatic dishwasher.

12 . The method according to claim 11 , wherein the automatic dishwasher comprises dishes, and wherein the composition provided to the automatic dishwasher inhibits soil redistribution.

Assignees

• Reckitt Benckiser Finish Bv

Inventors

• Al-Bayati Alias Younis
• Bartholomä Adrian
• Dobosz Anna
• Haag Marco
• Kaiser Roger
• Lingler Steffen
• Roth Torsten
• Roy Pavlinka
• Wink Alexander
• Yapar-Enders Serap

Classifications

• C11D17/0091

  Dishwashing tablets · CPC title

• C11D3/3757

  (Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions · CPC title

• C11D3/2013

  fatty or with at least 8 carbon atoms in the alkyl chain · CPC title

• C11D2111/14

  Hard surfaces · CPC title

• C11D1/00

  Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent · CPC title