Patent ID: 6472084
Filing Date: 2002-10-29
Classification: A61F,B29C,B29K,B32B,Y10T

Abstract:
A tear-resistant low set elastic film, comprising:a first layer; a second layer; a core layer bonded between said first layer and said second layer; activated zones in said film that have sufficient elasticity to stretch at least 200% while maintaining a permanent set percent of no more than about 5%; non-activated zones in said film that have sufficient non-elasticity to stretch at least 200% while maintaining a permanent set percent of up to about 5%; wherein said activated zones in said film have a tear-strength as measured by an Elmendorf Tear Test of at least 30 g; and wherein said non-activated zones in said film have a tear-strength as measured by an Elmendorf Tear Test of at least 50 g.