Compositions comprising a dispersant and microcapsules containing an active material and a stabilizer

US7226607B2 · kind B2 · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Hirotaka Uchiyama · Loveland, US
• Jonathan Robert Cetti · Mason, US
• Mario Alonso · Loveland, US
• Christine Marie Readnour · Fort Mitchell, US
• Zaiyou Liu · Sharonville, US
• Carl-Eric Kaiser · Cincinnati, US
• Michele Denise Shirley · Cincinnati, US
• Daniel Scott Cobb · Loveland, US

Key dates

• Filing date: Sep 9, 2004
• Grant date: Jun 5, 2007
• Expiry date: May 11, 2025

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D06M23/12
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Compositions for providing controlled-release of an active material comprise a dispersant and microcapsules containing the active material and a stabilizer. The compositions contain the dispersant and/or microcapsules at relatively low levels to avoid negatively impacting the surfaces treated with the compositions. The active material is preferably a perfume and the composition provides a controlled-release scent, along with controlling malodor when the compositions further comprise optional odor control agent. The stabilizer improves the stability of the microcapsule. Methods of providing a controlled-release of an active material on a surface comprise the step of contacting the surface with a composition comprising a dispersant and microcapsules containing an active material and a stabilizer.