Methods of forming an aqueous treatment liquor by dissolving a porous solid with a benefit agent coating

Patent metadata

Field	Value
Publication number	US-9861558-B2
Application number	US-201514702789-A
Country	US
Kind code	B2
Filing date	May 4, 2015
Priority date	May 5, 2014
Publication date	Jan 9, 2018
Grant date	Jan 9, 2018

Abstract

A method of forming an aqueous treatment liquor comprising a benefit agent, the method comprising the steps of: (a) providing a consumer product comprising: (i) a porous dissolvable solid structure, and (ii) a hydrophobic coating comprising a benefit agent, the hydrophobic coating applied to the porous dissolvable solid structure, wherein the hydrophobic coating has a first viscosity; (b) providing an aqueous solution; and (c) dissolving the consumer product in the aqueous solution to form an aqueous treatment liquor comprising a hydrophobic portion and an aqueous portion, wherein the aqueous portion has a second viscosity. A ratio of the first viscosity of the hydrophobic coating to the second viscosity of the aqueous portion of the aqueous treatment liquor is less than about 100:1.

First claim

What is claimed is:

1. A method of forming an aqueous treatment liquor comprising a benefit agent, said method comprising the steps of:
(a) providing a consumer product comprising:
(i) a porous dissolvable solid structure, wherein said porous dissolvable solid structure is in the form of fibrous web structure, and
(ii) a hydrophobic coating comprising two or more benefit agents, wherein a first benefit agent and a second benefit agent are premixed to form said hydrophobic coating prior to said hydrophobic coating being applied to said porous dissolvable solid structure, wherein said hydrophobic coating has a first viscosity;

(b) providing an aqueous solution;
(c) dissolving said consumer product in said aqueous solution to form an aqueous treatment liquor comprising a hydrophobic portion and an aqueous portion, wherein said aqueous portion has a second viscosity; and
(d) shearing said aqueous treatment liquor;

wherein a ratio of said first viscosity to said second viscosity is less than about 100:1; and wherein said aqueous treatment liquor comprises particles having a partible size of from about 10 microns to about 500 microns.

2. The method of claim 1 , wherein said ratio of said first viscosity to said second viscosity is less than about 50:1.

3. The method of claim 1 , wherein said first viscosity is less than about 500 Pa·s.

4. The method of claim 1 , wherein said first viscosity is less than about 14.5 Pa·s.

5. The method of claim 1 , wherein said second viscosity is from about 0.001 Pa·s to about 5 Pa·s.

6. The method of claim 1 , wherein said method provides a Capillary Number of less than about 1000.

7. The method of claim 1 , wherein said hydrophobic coating of said consumer product has an average thickness and/or maximum thickness of less than about 1000 microns.

8. The method of claim 1 , wherein said consumer product is selected from the group consisting of a beauty care product, hand washing product, body wash product, shampoo product, conditioner product, cosmetic product, hair removal product, laundry product, laundry rinse additive product, laundry detergent product, hard surface cleaning product, hand dishwashing product, automatic dishwashing product, and unit dose form automatic dishwashing or laundry product.

9. The method of claim 1 , wherein said consumer product comprises said hydrophobic coating applied to said porous dissolvable solid structure in an amount of from about 1% to about 70%, by weight of the consumer product.

10. The method of claim 1 , wherein said hydrophobic coating has an area density of application of less than about 250 μg per mm 2 of said porous dissolvable solid structure.

11. The method of claim 1 , wherein said benefit agent of said hydrophobic coating is selected from the group consisting of conditioning agent, perfume, and mixtures thereof.

12. The method of claim 11 , wherein said conditioning agent is selected from the group consisting of silicones, organic conditioning oils, hydrocarbon oils, fatty esters, metathesized unsaturated polyol esters, silane-modified oils, and mixtures thereof.

13. The method of claim 12 , wherein said conditioning agent is silicone.

14. The method of claim 13 , wherein said silicone is selected from the group consisting of siloxanes, silicone gums, aminosilicones, terminal aminosilicones, alkyl siloxane polymers, cationic organopolysiloxanes, and mixtures thereof.

15. The method of claim 14 , wherein said silicone is terminal aminosilicone.

16. The method of claim 1 , wherein said first benefit agent is conditioning agent and said second benefit agent is perfume.

17. The method of claim 1 , wherein said hydrophobic coating further comprises viscosity modifier, surfactant, or mixtures thereof.

Assignees

• Procter & Gamble

Inventors

• Lynch Matthew Lawrence
• Glenn Jr Robert Wayne
• Willman Joanne Roberta
• Kutay Benjamin John
• Sawin Philip Andrew
• Hamersky Mark William

Classifications

• A61Q5/12

  Preparations containing hair conditioners · CPC title

• A61Q5/02

  Preparations for cleaning the hair · CPC title

• A61K8/898 Primary

  containing nitrogen, e.g. amodimethicone, trimethyl silyl amodimethicone or dimethicone propyl PG-betaine · CPC title

• A61K8/891

  saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone · CPC title

• A61K8/8129

  Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers or esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers, e.g. polyvinylmethylether · CPC title