IP Library Granted Patent US 11,878,077
Granted Patent B2
US 11,878,077 · App. 16/823,375 · Granted Jan 23, 2024

Fibrous water-soluble unit dose articles comprising water-soluble fibrous structures

Inventors: Mark Robert Sivik (Mason, OH); Frank William Denome (Cincinnati, OH); Mark William Hamersky (Hamilton, OH); Sarah Ann Delaney (Hebron, KY); Sol Melissa Escobar (Mason, OH); Jack Wesley English, III (Liberty Township, OH); Min Mao (Deerfield Township, OH)
Assignee: The Procter & Gamble Company
A61K9/282A61K9/2059
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Quick Facts
Patent No.
US 11,878,077
App. No.
16/823,375
Granted
Jan 23, 2024
Kind
B2
Abstract

Described herein is a fibrous water-soluble unit dose with an active agent in the form of an acid.

Claims (15)

1. A fibrous water-soluble unit dose comprising:

a soluble fibrous structure encasing an active agent,

wherein said active agent comprises from 5% to 90% of an active agent acid, wherein the active agent acid has a coating comprising citrate.

2. The fibrous water-soluble unit dose of claim 1 , wherein said active agent acid is selected from the group consisting acetic acid, adipic acid, aspartic acid, carboxymethyloxymalonic acid, carboxymethyloxysuccinic acid, citric acid, formic acid, glutaric acid, gluconic acid, hydroxyethyliminodiacetic acid, iminodiacetic acid, lactic acid, maleic acid, malic acid, malonic acid, oxydiacetic acid, oxydisuccinic acid, succinic acid, sulfamic acid, tartaric acid, tartaric-disuccinic acid, tartaric-monosuccinic acid, their salts or mixtures thereof, either alone or in combination.

3. The fibrous water-soluble unit dose of claim 1 , wherein the active agent acid is comprises citric acid.

4. The fibrous water-soluble unit dose of claim 3 , wherein the citric acid serves as a bittering agent within the fibrous water-soluble unit dose article.

5. The fibrous water-soluble unit dose article of claim 1 , wherein the article comprises a bittering agent on an outer surface.

6. The fibrous water-soluble unit dose of claim 1 , wherein the active agent comprises from about 50% to 70% by weight of the fibrous water-soluble unit dose.

7. The fibrous water-soluble unit dose of claim 1 , wherein said soluble fibrous structure forms a pouch which encases said active agent.

8. The fibrous water-soluble unit dose of claim 1 , wherein said active agent is commingled with said soluble fibrous structure to form a coform structure.

9. The fibrous water-soluble unit dose of claim 1 , wherein said soluble fibrous structure comprises fibrous elements having a surfactant therein.

10. The fibrous water-soluble unit dose of claim 1 , wherein the composition of the water-soluble article comprises of 50% or greater of bio-based materials.

11. The fibrous water-soluble unit dose of claim 1 , wherein the fibrous structure comprises fibrous elements comprising starch.

12. The fibrous water-soluble unit dose of claim 1 , wherein the fibrous water-soluble unit dose comprises acetic acid.

13. The fibrous water-soluble unit dose of claim 1 , wherein the unit dose comprises an outer surface, wherein the outer surface comprises print.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 19, 2020
From: SIVIK, MARK ROBERT; DENOME, FRANK WILLIAM; HAMERSKY, MARK WILLIAM; DELANEY, SARAH ANN; ESCOBAR, SOL MELISSA; ENGLISH, JACK WESLEY; MAO, MIN
To: THE PROCTER AND GAMBLE COMPANY
Reel/Frame 052189/0474 →
Priority Claims (1)
EP 19163586 · Mar 19, 2019 · regional
Continuity (1)
Related Publication 20200297645A1 · Sep 24, 2020