Patent ID: 6489022
Filing Date: 2002-12-03
Classification: A61F,B05D,B65D,C09J,Y10T

Abstract:
A composite material stickable to a target surface, said composite material comprising:a) a piece of continuous, flexible film, said flexible film having a thickness of from 0.0005 inch to 0.0015 inch and having an adhesive side formed to have a plurality of protrusions separated by valleys, said plurality of protrusions having outermost ends and having a height of from about 0.004 inch to 0.012 inch; and b) pressure sensitive adhesive adhering to and partially filling said valleys between said plurality of protrusions, said pressure sensitive adhesive having a surface below said outermost ends of said plurality of protrusions, so that when a portion of said piece of flexible film is placed against a target surface, said plurality of protrusions prevents contact between said pressure sensitive adhesive and said target surface until said portion is pressed against said target surface under a pressure of at least 0.4 pounds per square inch hereby causing said plurality of protrusions in said portion or said piece of flexible film to collapse.