Automatic dishwashing detergent composition

Patent metadata

Field	Value
Publication number	US-10683471-B2
Application number	US-201615364281-A
Country	US
Kind code	B2
Filing date	Nov 30, 2016
Priority date	Dec 17, 2015
Publication date	Jun 16, 2020
Grant date	Jun 16, 2020

Abstract

A neutral or acidic automatic dishwashing detergent composition including inorganic bleach, enzymes and a cleaning agent selected from the group consisting of cleaning surfactants, soil suspending polymers and mixtures thereof and from 0.01% to 5% by weight of the composition of a perfume and wherein the composition has a cleaning index of at least 60 and a care index of at least 4 as defined herein.

First claim

What is claimed is:

1. A neutral or acidic automatic dishwashing detergent composition comprising:
from about 15% to about 40% by weight of the composition of sodium percarbonate, wherein the sodium percarbonate is in the form of a particle comprising a core, said core comprising sodium percarbonate, and a coating layer enclosing said core comprising a material selected from the group consisting of sodium sulphate, sodium carbonate, sodium borate, sodium silicate, sodium bicarbonate and mixtures thereof, wherein the coating layer is from about 3% to about 10%, by weight, of the particle,
an enzyme granulate,
from about 1% to about 15% by weight of the composition of a cleaning surfactant which is a mixture of an alcohol ethoxylate and an epoxy-capped poly(oxyalkylated) alcohol non-ionic surfactants, and
from about 0.01% to about 5% by weight of the composition of a perfume, wherein the composition has a pH from about 6 to about 7, and wherein the composition is free of a bleach catalyst and bleach activator, and wherein the composition is substantially builder free.

2. A composition according to claim 1 wherein the alcohol ethoxylate is an alcohol having from 12 to 14 carbon atoms and from 6 to 8 ethoxy groups and wherein the epoxy-capped poly(oxyalkylated) alcohol has the formula
R 1 O[CH 2 CH(CH 3 )O] x [CH 2 CH 2 O] y [CH 2 CH(OH)R 2 ]  (I)

wherein R 1 is a linear or branched, aliphatic hydrocarbon radical having from 4 to 18 carbon atoms; R 2 is a linear or branched aliphatic hydrocarbon radical having from 2 to 26 carbon atoms; x is an integer having an average value of from about 0.5 to about 1.5 and y is an integer having a value of at least 15.

3. A composition according to claim 1 further comprising a pH regulator system selected from the group consisting of a polycarboxylic acid, its salt and mixtures thereof.

4. A composition according to claim 1 wherein the enzyme granulate comprises an enzyme selected from the group consisting of metalloprotease, amylases and mixtures thereof.

5. A composition according to claim 1 wherein the enzyme granulate comprises at least 20% by weight of sodium sulphate, sodium citrate, carbohydrates or mixtures thereof.

6. A composition according to claim 1 wherein the enzyme granulate is coated with a layer comprising
(a) a film-forming polymer, selected from the group consisting of cellulose derivatives;
(b) or a wax, optionally additionally comprising inorganic clays and/or pigments.

7. A single or multi-compartment water-soluble pouch comprising a composition according to claim 1 .

8. A composition according to claim 1 further comprising an additional cleaning surfactant selected from the group consisting of anionic surfactants, amphoteric surfactants, non-ionic surfactants and mixtures thereof.

9. A composition according to claim 1 further comprising an alkoxylated polyalkyleneimine.

10. A composition according to claim 1 further comprising an iron chelant wherein the iron chelant is selected from the group consisting of siderophores, catechols, enterobactin, hydroxamates, hydroxypyridinones hydroxypyridine N-oxides, and mixtures thereof.

Assignees

• Procter & Gamble

Inventors

• Souter Philip Frank
• Brooker Alan Thomas
• Bewick Lindsay Suzanne
• Campbell Lynn Michelle

Classifications

• C11D3/3942

  Inorganic per-compounds (C11D3/3902 takes precedence) · CPC title

• C11D17/045

  Multi-compartment · CPC title

• C11D17/042

  Water soluble or water disintegrable containers or substrates containing cleaning compositions or additives for cleaning compositions · CPC title

• C11D3/0036

  Soil deposition preventing compositions; Antiredeposition agents · CPC title

• C11D3/3902

  combined with specific additives · CPC title