IP Library Granted Patent US 11,046,915
Granted Patent B2
US 11,046,915 · App. 16/231,269 · Granted Jun 29, 2021

Use of polyglycols to control rheology of unit dose detergent compositions

Inventors: Daniel T Piorkowski (Fairfield, CT); David S Stott, II (McKinney, TX)
Assignee: Henkel IP & Holding GmbH
C11D1/83C11D3/2044C11D3/2065C11D3/3707C11D17/043C11D1/22C11D1/75
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Quick Facts
Patent No.
US 11,046,915
App. No.
16/231,269
Granted
Jun 29, 2021
Kind
B2
Abstract

A method for maintaining a consistent, low viscosity profile of a unit dose detergent composition for enhanced hydration and dissolution upon hydration including the steps of: (1) A method for maintaining a consistent, low viscosity profile of a unit dose detergent composition for enhanced hydration and dissolution upon hydration including the steps of: (1) providing the detergent composition including: about 2.5 to about 15 wt. % of a polyglycol, an alkyl-ether sulfate, a linear alkylbenzene sulfonate, and a fatty alcohol ethoxylate, wherein the alkyl-ether sulfate, linear alkylbenzene sulfonate, and fatty alcohol ethoxylate are collectively present in an amount of 30 to 70 wt. %, by weight of the detergent composition; and (2) encapsulating the detergent composition in a pouch made of a water soluble film.

Claims (68)

1. A method for maintaining a consistent, low viscosity profile of a unit dose detergent composition for enhanced hydration and dissolution upon hydration comprising:

providing the detergent composition comprising:

about 2.5 to about 15 wt. % of polyethylene glycol homopolymer having a molecular weight of 400 Daltons,

sodium lauryl ether sulfate present in an amount of from about 10 to about 20 wt %,

a linear alkylbenzene sulfonate comprising 2-dodecylbenzenesulfonic acid present in an amount of from about 5 to about 15 wt %,

a C 12 -C 15 alcohol ethoxylated with seven moles of ethylene oxide present in an amount of from about 15 to about 25 wt %,

about 15.58 to about 30 wt. % of a combination of glycerine and propylene glycol and 2 to 8 wt % of a C2 to C5 alkanolamine, and

water; and

encapsulating the detergent composition in a pouch made of a water soluble film.

2. The method of claim 1 , wherein the polyethylene glycol homopolymer is present in an amount from about 4 to about 10 wt. %, by weight of the detergent composition.

3. The method of claim 1 , wherein the polyethylene glycol homopolymer is present in an amount from about 6 to about 8 wt. %, by weight of the detergent composition.

4. The method of claim 1 , wherein a ratio of glycerine to propylene glycol in the unit dose detergent compositions is within 2:1 to 1:2.

5. A detergent composition comprising:

about 2.5 to about 15 wt. % of polyethylene glycol homopolymer having a molecular weight of 400 Daltons,

sodium lauryl ether sulfate present in an amount of from about 10 to about 20 wt %,

a linear alkylbenzene sulfonate comprising 2-dodecylbenzenesulfonic acid present in an amount of from about 5 to about 15 wt %,

a C 12 -C 15 alcohol ethoxylated with seven moles of ethylene oxide present in an amount of from about 15 to about 25 wt %,

about 15.58 to about 30 wt. % of a combination of glycerine and propylene glycol and 2 to 8 wt % of a C2 to C5 alkanolamine, and

water.

6. The detergent composition of claim 5 , wherein the polyethylene glycol homopolymer is in an amount from about 4 to about 10 wt. %, by weight of the detergent composition.

7. The detergent composition of claim 5 , wherein the polyethylene glycol homopolymer is in an amount from about 6 to about 8 wt. %, by weight of the detergent composition.

8. The detergent composition of claim 5 , wherein the composition comprises less than 20 wt. % water.

9. A unit dose detergent product, comprising:

a unit dose pouch comprising a water soluble film, a detergent composition encapsulated in the unit dose pouch, wherein the detergent composition comprises:

about 2.5 to about 15 wt. % of polyethylene glycol homopolymer having a molecular weight of 400 Daltons,

sodium lauryl ether sulfate present in an amount of from about 10 to about 20 wt %,

a linear alkylbenzene sulfonate comprising 2-dodecylbenzenesulfonic acid present in an amount of from about 5 to about 15 wt %,

a C 12 -C 15 alcohol ethoxylated with seven moles of ethylene oxide present in an amount of from about 15 to about 25 wt %,

about 15.58 to about 30 wt. % of a combination of glycerine and propylene glycol and 2 to 8 wt % of a C2 to C5 alkanolamine, and

water,

wherein a mixture of 2 parts of the detergent composition to 1 part water has a rheology below 3,000 centipoise.

10. The product of claim 9 , wherein the polyethylene glycol homopolymer-is in an amount from about 4 to about 10 wt. %, by weight of the detergent composition.

11. The product of claim 9 , wherein the polyethylene glycol homopolymer is in an amount from about 6 to about 8 wt. %, by weight of the detergent composition.

12. The product of claim 9 , wherein the detergent composition further comprises a component selected from a group consisting of:

an active enzyme,

a whitening agent,

a bittering agent,

and a combination thereof.

13. The method of claim 1 wherein:

the polyethylene glycol homopolymer having a molecular weight of 400 Daltons is present in an amount of from about 2.5 to about 7.5 wt %,

the glycerine is present in an amount of from about 7.4 to about 12.4 wt %,

the propylene glycol is present in an amount of about 8.2 wt %,

the sodium lauryl ether sulfate is present in an amount of about 15.6 wt %,

the C 12 -C 15 alcohol ethoxylated with seven moles of ethylene oxide is present in an amount of about 23 wt %,

the 2-dodecylbenzenesulfonic acid is present in an amount of about 5 wt %, and

the alkanolamine is present in an amount of about 3.2 wt %.

14. The method of claim 13 wherein the composition further comprises:

about 10 wt % coconut oil fatty acid,

about 0.185 wt % enzymes,

about 1 wt % fragrance,

about 0.3 wt % builder,

about 0.2 wt % optical brightener, and

about 0.05 wt % bittering agent.

15. The method of claim 1 wherein the composition consists of:

polyethylene glycol homopolymer having a molecular weight of 400 Daltons present in an amount of from about 2.5 to about 7.5 wt %,

glycerine present in an amount of from about 7.4 to about 12.4 wt %,

propylene glycol present in an amount of about 8.2 wt %,

sodium lauryl ether sulfate present in an amount of about 15.6 wt %,

C 12 -C 15 alcohol ethoxylated with seven moles of ethylene oxide present in an amount of about 23 wt %,

2-dodecylbenzenesulfonic acid present in an amount of about 5 wt %,

alkanolamine present in an amount of about 3.2 wt %,

water,

about 10 wt % coconut oil fatty acid,

about 0.185 wt % enzymes,

about 1 wt % fragrance,

about 0.3 wt % builder,

about 0.2 wt % optical brightener, and

about 0.05 wt % bittering agent.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 9, 2022
From: HENKEL IP & HOLDING GMBH
To: HENKEL AG & CO. KGAA
Reel/Frame 059357/0267 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 3, 2019
From: PIORKOWSKI, DANIEL T.; STOTT II, DAVID S.
To: HENKEL IP & HOLDING GMBH
Reel/Frame 047894/0316 →