Unitary laundry detergent article

US11118146B2 · kind B2 · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Hongsing TAN · Beijing, CN
• Mark Robert Sivik · Lancaster, US
• Frank William Denome · Cincinnati, US
• Carl David MacNamara · Beijing, CN

Key dates

• Filing date: Sep 20, 2018
• Grant date: Sep 14, 2021
• Expiry date: Nov 26, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D2111/12
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A unitary laundry detergent article that is completely or substantially water-soluble, which contains two or more non-fibrous, surfactant-containing sheets with one or more discrete, surfactant-containing particles located between such sheets. The non-fibrous sheets contain a first surfactant that is relatively less hydrophilic, while the discrete particles contain a second surfactant that is relatively more hydrophilic.