Method for delivering a volatile material

US8709337B2 · kind B2 · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Dana Paul Gruenbacher · Lancaster, US
• Jason John Olchovy · Sharonville, US
• Scott Kendyl Stanley · Parker, US
• James Douglas Still · Cleves, US
• Rhonda Jean Jackson · Cincinnati, US
• Zaiyou Liu · Sharonville, US
• Walter Sordo · Trento, IT
• Stefano Deflorian · Trento, IT
• Cedric Morhain · Trento, IT

Key dates

• Filing date: Apr 15, 2010
• Grant date: Apr 29, 2014
• Expiry date: Feb 9, 2033

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61L2209/133
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A method of delivering a volatile material to the atmosphere in a continuous manner is disclosed. The method includes providing a delivery engine having a reservoir that includes a volatile material mixture. The volatile material mixture includes about 40% to about 100%, by total weight, of the volatile materials each having a vapor pressure at 25° C. of less than about 0.1 torr. The delivery system also includes a microporous membrane enclosing the reservoir, wherein the microporous membrane comprises an average pore size of about 0.01 to about 0.03 microns.