Multilayer dissolvable solid article containing solid particles for making the same
AssigneeThe Procter & Gamble Company
InventorsCarl David MacNamara, Hong Sing Tan, Robert Wayne Glenn, Jr., Wenhu Pang, Kejing Du, Yuxiang Liu
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Abstract
A dissolvable solid article which can include multiple layers of flexible, dissolvable, porous sheets, in which a coating composition including solid particles is present on at least one internal surface of at least one sheet in the solid articles and a process for making such solid articles.
Claims20
A dissolvable solid article comprising two or more flexible, porous, dissolvable sheets, wherein each of said two or more sheets comprises a water-soluble polymer and a surfactant and is characterized by a Percent Open Cell Content of from about 80% to about 100% and an Overall Average Pore Size of from about 100 μm to about 2000 μm;
- and
- a coating composition comprising a non-aqueous liquid carrier comprising perfume oil, silicone, fatty acid, or combination thereof;
- solid particles;
- and a thickening agent;
- wherein said composition comprises:
- a) from about 20% to about 80%, of said non-aqueous liquid carrier by total weight of said coating composition;
- b) from about 20% to about 60%, of said solid particles by total weight of said coating composition;
- c) from about 0.1% to about 30%, of said thickening agent by total weight of said coating composition;
- said solid particles comprise a bleaching agent, a bleach activator, or an anionic surfactant, said thickening agent comprises silica;
- and wherein said coating is present on at least one surface of at least one of said two or more sheets, provided that said coating composition is not on any of the outer surfaces of the dissolvable solid article.
Dependencies are inferred from the claim text.