Perfume delivery system comprising zeolites

US5691303A · kind A · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Robert Ya-lin Pan · Cincinnati, US
• Jing-Feng You
• Gregory Stephen Caravajal · Lancaster, US
• Sharon Anne Graves · Lawrenceburg, US
• William R. Mueller · Cincinnati, US

Key dates

• Filing date: Feb 27, 1995
• Grant date: Nov 25, 1997
• Expiry date: Feb 27, 2015

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K2800/56
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Granular detergent compositions comprise conventional ingredients and a perfume delivery system which comprises Type X or Type Y Zeolites having a perfume releasably adsorbed within their pores, and a barrier matrix comprising a fluid polyol or diol which is insoluble with the perfume and a solid polyol containing more than three hydroxyl moieties. Methods of depositing said perfume onto fabric surfaces are disclosed.