	US 12,441,967 B2
	Flexible and dissolvable solid sheet article
Hongsing Tan, Beijing (CN); Carl David MacNamara, Beijing (CN); Robert Wayne Glenn, Jr., Liberty Township, OH (US); Ming Tang, Beijing (CN); and Toshiyuki Okada, Singapore (SG)
Assigned to The Procter & Gamble Company, Cincinnati, OH (US)
Filed by The Procter & Gamble Company, Cincinnati, OH (US)
Filed on Jul. 7, 2021, as Appl. No. 17/368,895.
Application 17/368,895 is a continuation of application No. PCT/CN2019/071785, filed on Jan. 15, 2019.
Prior Publication US 2021/0363472 A1, Nov. 25, 2021
Int. Cl. C11D 17/06 (2006.01); C11D 1/12 (2006.01); C11D 1/22 (2006.01); C11D 1/29 (2006.01); C11D 1/72 (2006.01); C11D 1/831 (2006.01); C11D 3/20 (2006.01); C11D 3/22 (2006.01); C11D 3/37 (2006.01); C11D 1/14 (2006.01)

CPC C11D 17/06 (2013.01) [C11D 1/831 (2013.01); C11D 3/2065 (2013.01); C11D 3/222 (2013.01); C11D 3/3753 (2013.01); C11D 1/146 (2013.01); C11D 1/22 (2013.01); C11D 1/29 (2013.01); C11D 1/72 (2013.01)]

16 Claims

1. A solid article, comprising:

i) from 40% to 70%, by weight of said solid article, of a first surfactant comprising C₆-C₂₀linear alkylbenzene sulfonates (LAS);

ii) from 10% to 40%, by weight of said solid article, of a second surfactant comprising C₆-C₂₀linear or branched alkylalkoxy sulfates (AAS) having a weight average degree of alkoxylation ranging from 0.5 to 10, and C₆-C₂₀linear or branched alkylalkoxylated alcohols (AA) having a weight average degree of alkoxylation ranging from 5 to 15; and

iii) from 10% to 30%, by weight of said solid article, of a polyvinyl alcohol having a weight average molecular weight of from 50,000 to 400,000 Daltons,

wherein said solid article is in a form of a flexible and dissolvable sheet;

wherein said solid article has a bottom-to-top Average Pore Size ratio from 0.6 to 1.5; and

wherein a Top Surface Average Pore Diameter of said solid article is greater than 100 μm.