Patent ID: 8409697
Filing Date: 2013-04-02
Classification: B29C,B29L,B32B,Y10T

Abstract:
1. A multilayer, heat-shrinkable film, comprising: a. a bulk layer; and b. a microlayer section comprising at least ten microlayers, each of said microlayers having a thickness ranging from about 0.001 to 0.015 mil, wherein: each of said microlayers and said bulk layer have a thickness, the ratio of the thickness of any of said microlayers to the thickness of said bulk layer being at least 1:2; said film is stretch-oriented at a ratio of at least 4 in at least one direction along a length or width dimension of said film; and said film has a total free shrink (ASTM D2732-03) of at least about 10% at 200° F.; and said heat-shrinkable film has an Elmendorf Tear value (ASTM D1922-06a) of at least about 30 grams/mil, as measured in at least one direction along a length or width dimension of said film.