Method and device for determining adhesive performance of flat adhesive products on the skin of humans or mammals
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United States of America Patent
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Oct 30, 2001
Grant Date -
N/A
app pub date -
Feb 1, 2000
filing date -
Apr 16, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for ascertaining the adhesive behaviour of pressure-sensitive adhesive flat materials such as medicinal adhesive tape and, in particular, pressure-sensitive adhesive application systems such as transdermal therapeutic systems (TTS) is characterized in that a flat material (5) with an adhesive layer (6) of a defined coating weight per unit area and of defined quality of the adhesive mass is adhered with predetermined surface pressure and at a predetermined temperature to an elastic carrier film (4) of defined thickness and elasticity, and that said carrier film (4) is clamped into a test cell (21), in the manner of a membrane, between half-shells (1,2) of a test cell (21), and that the carrier film (4) along with the adhered flat material (5) is subjected, in chronologically repeated sequence, to loading and unloading with alternating elastic stretchings by defined loading forces from the side facing away from the flat material, and that a detachment of the adhesive layer, which detachment arises progressively per unit of time, is observed and qualitatively and/or quantitatively evaluated.
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