Refastenable adhesive taping system

US5690628A · kind A · utility

Assignee

• Avery Dennison Corporation · US

Inventors

• Richard A. Huskey · Mentor, US
• Eng-Pi Chang · Arcadia, US
• Carol A. Caldwell · Kirtland Hills, US
• Gary A. Avalon · Painesville, US
• Yung Hsiang Huang · Appleton, US
• Dave Allen Soerens · Neenah, US
• Ruth A. Lachapell · Menasha, US

Key dates

• Filing date: Jan 20, 1995
• Grant date: Nov 25, 1997
• Expiry date: Jan 20, 2015

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2013/588
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A refastenable diaper is provided with a securing zone on the diaper outer cover of a peak strength of less than 2750 grams/inch. A refastenable adhesive taping system for the diaper includes an adhesive fastening tape comprising a flexible backing and a layer of pressure-sensitive adhesive permanently combined to said flexible backing and adapted to be applied to and released from the securing zone to fasten and open the diaper. The adhesive exhibits a 180.degree. peel adhesion of the tape to the securing zone that is less than the peak strength of the securing zone. The adhesive is selected to be within a specified rheological window, that is, have a maximum tan delta, or (tan delta).sub.max, of from 1.5 to 2.5 at 20.degree. C., reached at a frequency, or (w).sub.max, of greater than 500 rad/sec.