Clear or translucent aqueous polyquaternary ammonium fabric softener compositions containing low solvent

US6884767B1 · kind B1 · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Gayle Marie Frankenbach · Cincinnati, US
• Mark Robert Sivik · Lancaster, US
• Ruth Anne Murphy · Cincinnati, US
• Ellen Schmidt Baker · Cincinnati, US
• Marc Johan Declercq · Strombeek-Bever, BE
• Hugo Jean Marie Demeyere · Merchtem, BE
• Toan Trinh · Maineville, US
• Errol Hoffman Wahl · Cincinnati, US

Key dates

• Filing date: Jul 5, 2000
• Grant date: Apr 26, 2005
• Expiry date: Jul 5, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D17/0026
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Clear/translucent formulations comprise polyquaternary ammonium actives with lower, or no, solvent levels except the solvent which is normally present in the polyquaternary raw material stocks by choosing highly efficient solvents within a specific Clog P range, employing higher levels of polyquaternary ammonium, actives, and/or augmenting the bilayer with surfactants and/or polar oils. Compositions with lowered solvent levels have at or below about 5% by volume of secondary dispersed phases preferably below about 3% by volume of secondary dispersed phase, and more preferably 1% by volume of secondary dispersed phases. The most preferred compositions are essentially free of secondary dispersed phases. High-speed centrifugation easily and quickly reveals the % volume of secondary phase(s).