Water-soluble personal cleansing product and uses

Patent metadata

Field	Value
Publication number	US-11311469-B2
Application number	US-202016913116-A
Country	US
Kind code	B2
Filing date	Jun 26, 2020
Priority date	Jun 28, 2019
Publication date	Apr 26, 2022
Grant date	Apr 26, 2022

Abstract

Described herein, a water-soluble personal cleansing product including a water-soluble fibrous structure; wherein the water-soluble fibrous structure comprises a plurality of fibrous elements; wherein the plurality of fibrous elements comprises one or more fibrous element-forming materials comprising one or more polyvinyl alcohols; and one or more active agents present within the plurality of fibrous elements, wherein the one or more active agents comprise one or more surfactants, wherein the one or more surfactants comprise at least one glutamate surfactant according to the general formula (I):wherein R1 is a saturated or unsaturated, straight or branched alkyl or alkenyl chain with from 5 to 20 carbon atoms; and M is H, ammonium, triethanolammonium (TEA), sodium or potassium and mixtures thereof; and wherein the water-soluble fibrous structure is substantially free of alkyl sulfate and alkyl ether sulfate type of surfactants.

First claim

What is claimed is:

1. A water-soluble personal cleansing product comprising a water-soluble fibrous structure;
wherein the water-soluble fibrous structure comprises a plurality of fibrous elements;
wherein the plurality of fibrous elements comprises:
one or more fibrous element-forming materials comprising one or more polyvinyl alcohols; and
one or more active agents present within the plurality of fibrous elements, wherein the one or more active agents comprise one or more surfactants, wherein the one or more surfactants comprise at least one glutamate surfactant according to the general formula (I):

wherein R 1 is a saturated or unsaturated, straight or branched alkyl or alkenyl chain with from 5 to 20 carbon atoms; and M is H, ammonium, triethanolammonium (TEA), sodium or potassium and mixtures thereof; and
wherein the water-soluble fibrous structure is substantially free of alkyl sulfate and alkyl ether sulfate type of surfactants.

2. The water-soluble personal cleansing product of claim 1 , wherein the at least one glutamate surfactant is selected from sodium cocoyl glutamate, disodium cocoyl glutamate, potassium cocoyl glutamate, dipotassium cocoyl glutamate, ammonium cocoyl glutamate, diammonium cocoyl glutamate, sodium lauroyl glutamate, disodium lauroyl glutamate, potassium lauroyl glutamate, dipotassium lauroyl glutamate, sodium capryloyl glutamate, disodium capryloyl glutamate, potassium capryloyl glutamate, dipotassium capryloyl glutamate, sodium undecylenoyl glutamate, disodium undecylenoyl glutamate, potassium undecylenoyl glutamate, dipotassium undecylenoyl glutamate, disodium hydrogenated tallowoyl glutamate, sodium stearoyl glutamate, disodium stearoyl glutamate, potassium stearoyl glutamate, dipotassium stearoyl glutamate, sodium myristoyl glutamate, disodium myristoyl glutamate, potassium myristoyl glutamate, dipotassium myristoyl glutamate, sodium cocoyl/hydrogenated tallowoyl glutamate, sodium cocoyl/palmoyl/sunfloweroyl glutamate, sodium hydrogenated tallowoyl glutamate, sodium olivoyl glutamate, disodium olivoyl glutamate, sodium palmoyl glutamate, disodium palmoyl glutamate, TEA-cocoyl glutamate, TEA-hydrogenated tallowoyl glutamate, TEA-lauroyl glutamate, and mixtures thereof.

3. The water-soluble personal cleansing product of claim 1 , wherein the surfactants of the one or more active agents comprise a co-surfactant by weight of the composition, wherein the co-surfactant is selected from an anionic surfactant being not a glutamate surfactant, a non-ionic surfactant, an amphoteric surfactant, a zwitterionic surfactant, and mixtures thereof.

4. The water-soluble personal cleansing product of claim 3 , wherein the anionic surfactant being not a glutamate surfactant is selected from an isethionate surfactant, a glycinate surfactant, an alanitate surfactant, a sulfosuccinate surfactant, a sulfonate surfactant, a sulfoacetate surfactant, a glucose carboxylate surfactant, an alkyl ether carboxylate surfactant, a taurate surfactant, and mixtures thereof.

5. The water-soluble personal cleansing product of claim 1 , wherein the one or more surfactants comprise at least one isethionate surfactant according to the general formula (II):

wherein R 1 is a saturated or unsaturated, straight or branched, alkyl or alkenyl chain with from 6 to 30 carbon atoms, R 2 and R 3 are each independently H or (C 1 -C 4 ) alkyl, and M + is an alkali metal; or M + is an alkali-earth metal; or M + is an ammonium or a substituted ammonium cation.

6. The water-soluble personal cleansing product of claim 5 , wherein the at least one isethionate surfactant is selected from sodium lauroyl isethionate, sodium lauroyl methyl isethionate, sodium oleoyl isethionate, sodium oleoyl methyl isethionate, sodium stearoyl isethionate, sodium stearoyl methyl isethionate, sodium myristoyl isethionate, sodium myristoyl methyl isethionate, sodium palmitoyl isethionate, sodium palmitoyl methyl isethionate, sodium cocoyl isethionate, sodium cocoyl methyl isethionate, a blend of stearic acid and sodium cocoyl isethionate, ammonium cocoyl isethionate, ammonium cocoyl methyl isethionate, and mixtures thereof.

7. The water-soluble personal cleansing product of claim 1 , wherein the one or more surfactants comprise at least an amphoteric or zwitterionic surfactant selected from cocamidopropyl betaine, lauramidopropyl betaine, coco-betaine, lauryl betaine, lauryl hydroxysultaine, cocamidopropyl hydroxysultaine, coco-hydroxysultaine, coco-sultaine, lauryl sultaine, sodium cocoamphoacetate, disodium cocoamphodiacetate, sodium lauroamphoacetate, disodium lauroamphodiacetate, lauramine oxide, and mixtures thereof.

8. The water-soluble personal cleansing product of claim 1 , wherein the one or more surfactants comprise a non-ionic surfactant, wherein the non-ionic surfactant is selected from alkyl polyglucoside, alkyl glycoside, acyl glucamide and mixtures thereof.

9. The water-soluble personal cleansing product of claim 1 , wherein the total level of the one or more fibrous element-forming materials is from about 5% to about 80% by weight on a dry fibrous element basis and/or a dry water-soluble fibrous structure basis, and the total level of the one or more active agents is from about 20% to about 95% by weight on a dry fibrous element basis and/or a dry water-soluble fibrous structure basis.

10. The water-soluble personal cleansing product of claim 1 , wherein the one or more fibrous element-forming materials and the one or more active agents are present in the plurality of fibrous elements at a weight ratio of the total level of the one or more fibrous element-forming materials to the one or more active agents from about 0.1 to about 4.0.

11. The water-soluble personal cleansing product of claim 1 , wherein the total level of the one or more fibrous element-forming materials is from about 5% to about 80% by weight of the fibrous element-forming composition, and the total level of the one or more active agents is from about 20% to about 95% by weight of the fibrous element-forming composition.

12. The water-soluble personal cleansing product of claim 11 , wherein the fibrous element-forming composition further comprises from about 1% to about 40%, by weight of the fibrous element-forming composition, of a plasticizer selected from glycerin, diglycerin, propylene glycol, ethylene glycol, butylene glycol, pentylene glycol, cyclohexane dimethanol, hexanediol, 2,2,4-trimethylpentane-1,3-diol, polyethylene glycol with a weight average molecular weight from about 200 g/mol to about 600 g/mol, pentaerythritol, sorbitol, manitol, lactitol, fructose, glucose, sucrose, maltose, lactose, high fructose corn syrup solids, dextrins, ascorbic acid, and mixtures thereof.

13. The water-soluble personal cleansing product of claim 1 , wherein the one or more fibrous element-forming materials comprise two or more different polyvinyl alcohols.

14. The water-soluble personal cleansing product of claim 1 , wherein the plurality of fibrous elements further comprises a chelating agent.

15. The water-soluble personal cleansing product of claim 1 , wherein the water-soluble fibrous structure comprises one or more water-soluble active agent-containing particles comprising an effervescent agent such that when the water-soluble personal cleansing product comprising the water-soluble fibrous structure is exposed to conditions of intended use a foam is generated

Assignees

• Procter & Gamble

Inventors

• Wei Karl Shiqing
• Mao Min
• Griffiths-Brophy Susan Adair
• Guskey Gerald John
• Song Brian Xiaoqing

Classifications

• A61Q19/10

  Washing or bathing preparations · CPC title

• A61K2800/596

  Mixtures of surface active compounds · CPC title

• A61K8/8129 Primary

  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

• A61K8/4946

  Imidazoles or their condensed derivatives, e.g. benzimidazoles · CPC title

• A61K8/442

  substituted by amido group(s) · CPC title