Web materials exhibiting elastic-like behavior

US5891544A · kind A · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Charles W. Chappell · Sharonville, US
• Eugene R. Sorensen · Forest Park, US
• Kenneth B. Buell · Cincinnati, US
• John Joseph Curro · Cincinnati, US
• Michele Ann Mansfield · Cincinnati, US
• Tom Henrich · Cincinnati, US

Key dates

• Filing date: Sep 30, 1997
• Grant date: Apr 6, 1999
• Expiry date: Sep 30, 2017

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T442/678
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A package including a web material that exhibits an elastic-like behavior along at least one axis when subjected to an applied and subsequently released elongation. The web material includes a strainable network having at least two visually distinct regions of the same material composition. The first region undergoes a molecular-level deformation and the second region initially undergoes a substantially geometric deformation when the web material is subjected to an applied elongation in a direction substantially parallel to the axis of elongation.