Personal care products having reduced leakage

US6723892B1 · kind B1 · utility

Assignee

• Kimberly-Clark Worldwide, Inc. · US

Inventors

• Michael Allen Daley · Alpharetta, US
• Bruce Achter · Alpharetta, US
• Charles W. Colman · Roswell, US
• Joseph DiPalma · Neenah, US
• David M. Jackson · Roswell, US
• Nancy Donaldson Kollin · Roswell, US
• Margaret G. Latimer · Alpharetta, US
• Gregory Marc Lefkowitz · Atlanta, US
• Sylvia Bandy Little · Marietta, US
• David Michael Matela · Alpharetta, US
• David Charles Potts · Dunwoody, US
• Lawrence Howell Sawyer · Neenah, US
• Kristin Ann Goerg-Wood · Harrison, US

Key dates

• Filing date: Sep 1, 2000
• Grant date: Apr 20, 2004
• Expiry date: Sep 1, 2020

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F13/534
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

There is provided an absorbent system that not only takes in fluid, but then transfers that fluid further beneath the first composite. This is achieved in this invention through paired permeability, capillarity, and void volume of the first and second composites. The invention is an absorbent system composed of at least two absorbent composites that have complementary structural/surface energy characteristics. Such an absorbent system has a first absorbent Composite A which has a first permeability, a first capillarity, and a first void volume and at least one second absorbent Composite B which has a second capillarity and a second porosity multiplied by second thickness. The first absorbent Composite A is in liquid communication or contact with at least one second absorbent Composite B, such that the first absorbent Composite A, and the second absorbent Composite B have a fluid partitioning amount in Composite A, a third triple intake time (IT3) and a rewet value.