Cleaning product comprising an inverted container assembly and a viscoelastic cleaning composition

Patent metadata

Field	Value
Publication number	US-10934510-B2
Application number	US-201916244582-A
Country	US
Kind code	B2
Filing date	Jan 10, 2019
Priority date	Jan 16, 2018
Publication date	Mar 2, 2021
Grant date	Mar 2, 2021

Abstract

The invention relates to a cleaning product comprising: an inverted container assembly comprising an inverted container and a liquid dispenser attached to a bottom surface of the inverted container, and a liquid hand dishwashing cleaning composition having a specific viscoelastic rheology profile contained in the inverted container assembly. The present invention also relates to the use of the cleaning product for cleaning dishware.

First claim

What is claimed is:

1. A cleaning product comprising an inverted container assembly and a liquid hand dishwashing cleaning composition contained in the inverted container assembly, wherein:
i) the inverted container assembly comprises an inverted container having a bottom surface and a top surface located away from the bottom surface, the bottom surface having an opening; and a liquid dispenser attached, to the bottom surface of the inverted container, wherein the liquid dispenser comprises a body and a valve, wherein the body comprises a connecting sleeve adaptable for engaging to the inverted container, wherein the connecting sleeve defines an internal discharge conduit, and wherein the valve extends across the internal discharge conduit; and
ii) the cleaning composition having a Trouton Ratio of between about 60 and about 150, at a rate of about 90/s, measured according to the Trouton Ratio Test method at about 20° C.

2. The cleaning product according to claim 1 wherein the cleaning composition having a Trouton Ratio of between about 60 and about 100.

3. The cleaning product according to claim 1 wherein the cleaning composition has an elastic modulus of less than about 0.08 Pa, measured at a frequency of about 0.95 rad/s at about 20° C. according to the Elastic Modulus Test method.

4. The cleaning product according to claim 3 wherein the cleaning composition has an elastic modulus of between 0.001 Pa and 0.03 Pa.

5. The cleaning product according to claim 1 , wherein the cleaning composition has a shear viscosity of from about 10 mPa·s to about 10,000 mPa·s, at about 10/s as measured according to the Shear Viscosity Test method at about 20° C.

6. The cleaning product according to claim 5 , wherein the cleaning composition has a shear viscosity of from about 500 mPa·s to about 1,500 mPa·s, at about 10/s as measured according to the Shear Viscosity Test method at about 20° C.

7. The cleaning product according to claim 1 , wherein the cleaning composition comprises from about 1% to about 60% by weight of the total composition of a surfactant system, wherein the surfactant system comprises:
i) an anionic surfactant, selected from the group consisting of alkyl sulfate, alkyl alkoxy sulfate and mixtures thereof; and
ii) a primary co-surfactant system, wherein the primary co-surfactant system is selected from the group consisting of amphoteric surfactant, zwitterionic surfactant and mixtures thereof;
wherein the composition comprises anionic surfactant and the primary cosurfactant system in a weight ratio of from about 8:1 to about 1:1;
wherein the surfactant system of the composition further comprises from about 0.1% to about 10% by weight of the total composition of a secondary co-surfactant system comprising a non-ionic surfactant, comprising from 9 to 15 carbon atoms in its alkyl chain and from 5 to 12 units of ethylene oxide per mole of alcohol, wherein the composition comprises the anionic surfactant and the non-ionic surfactant in a ratio of from about 2:1 to about 50:1.

8. The cleaning product according to claim 1 , wherein the composition has a pH in the range of from about 5 to about 12 as measured at about 10% dilution in distilled water at about 20° C.

9. The cleaning product according to claim 1 , wherein the composition further comprises from about 0.1% to 5% by weight of the total composition of an amphiphilic alkoxylated polyalkyleneimine, wherein the amphiphilic alkoxylated polyalkyleneimine is an alkoxylated polyethyleneimine polymer comprising a polyethyleneimine backbone having average molecular weight range from about 100 to about 5,000 Daltons.

10. The cleaning product according to claim 1 , wherein the composition further comprises from about 0.1% to about 10% by weight of the total composition of at least one ethyleneoxide (EO) —propyleneoxide (PO) —ethyleneoxide (EO) triblock co-polymer of Formula (I):
(EO) x -(PO) y -(EO) x    (I)

wherein:
each x is independently on average between about 1 and about 80; and
y is on average between about 1 and about 60.

11. The cleaning product according to claim 1 , wherein the composition may comprise: from about 0.05% to about 2 by weight of the total composition of a salt; from about 1% to about 10% by weight of the total composition of a hydrotrope; and from about 0.01% to about 25% by weight of the total composition of an organic solvent.

12. The cleaning product according to claim 1 , wherein the connecting sleeve is adaptable for engaging to an exterior surface proximate the opening of the inverted container and is spaced radially to define the internal discharge conduit for establishing fluid communication with the composition contained in the inverted container.

13. The cleaning product according to claim 9 wherein the valve has an interior side for being contacted by the composition contained inside the inverted container and an exterior side for being exposed to the exterior atmosphere, wherein the valve defines a dispensing orifice that is reactably openable when the pressure on the valve interior side exceeds the pressure on the valve exterior side, and wherein the liquid dispenser further comprises a baffle located above the interior side of the valve.

14. The cleaning product according to claim 13 , wherein the baffle includes an occlusion member supported by at least one support member which accommodates movement of the occlusion member between a closed position occluding composition flow into at least a portion of the discharged conduit when the baffle is subjected to an upstream hydraulic hammer pressure.

15. The cleaning product according to claim 13 , wherein the liquid dispenser further comprises an impact resistance system localized upstream of the valve and the baffle, the system comprises a housing having a cavity therein and extending longitudinally from the body and radially inwardly from the sleeve, wherein the housing comprises at least one inlet opening that provides a flow path for the composition from the inverted container into the housing and at least one outlet opening that provides a path of egress for the composition from the housing to the exterior atmosphere when the dispensing orifice is opened, wherein the cavity is adapted to be partially occupied by a compressible substance, wherein the compressible substance is selected from a gas, a foam, a sponge or a balloon.

16. The cleaning product according to claim 15 wherein the compressible substance is a gas, the ratio of the volume of the gas, inside the housing at a steady-state to the volume of the inverted container is higher than about 0.001.

17. The cleaning product according to claim 1 , wherein the liquid dispenser does not comprise a closing cap.

18. A method of cleaning dishware with the cleaning product according to claim 1 , the method comprising the step of squeezing the inverted container to dispense the cleaning composition from the opening on the bottom surface.

Assignees

• Procter & Gamble

Inventors

• Brouwers Katrien
• Braeckman Karl Ghislain
• Keuleers Robby Renilde Francois
• Ahirwal Deepak
• Sanders Greta Annie Renata

Classifications

• C11D1/94

  Mixtures with anionic, cationic or non-ionic compounds · CPC title

• C11D3/3723

  Polyamines or polyalkyleneimines · CPC title

• C11D17/041 Primary

  Compositions releasably affixed on a substrate or incorporated into a dispensing means · CPC title

• C11D1/146

  Sulfuric acid esters · CPC title

• C11D1/75

  Amino oxides · CPC title