Cationic polymer stabilized microcapsule composition

US8765659B2 · kind B2 · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Yonas Gizaw · Cincinnati, US
• Giulia Ottavia Bianchetti · Brussels, BE
• Karel Geert Claeys · Beernem, BE
• Jean-Francois Bodet · Mason, US
• Olav Pieter Dora Tony KEIJZER · Brussels, BE
• Denise Malcuit Belanger · West Chester, US
• Lon Montgomery Gray · Florence, US
• Peter Marie Kamiel Perneel · Brugge, BE

Key dates

• Filing date: Apr 1, 2011
• Grant date: Jul 1, 2014
• Expiry date: Mar 4, 2032

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D17/0039
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to the use of a cationic polymer to provide stability to microcapsules in a composition, wherein the microcapsule comprises a shell encapsulating materials having an average C log P of at least 2.5 and more than 60% by weight of the encapsulated materials have a C log P of at least 3.3. The cationic polymer is derived from the polymerization of 5 to 100 mole percent of a cationic vinyl addition monomer, 0 to 95 percent acrylamide, and 5 to 500 ppm of a tetrafunctional vinyl addition monomer cross-linking agent. The cationic polymer and encapsulated material may be used, for example, in a fabric softener composition.