Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With cutting – punching – piercing – severing – or tearing
Patent
1993-06-21
1995-04-11
Weston, Caleb
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With cutting, punching, piercing, severing, or tearing
156250, 156267, 156268, 156270, 156581, 83861, 83862, B32B 3118
Patent
active
054054869
ABSTRACT:
Disclosed is a method and apparatus for forming a transdermal drug delivery device from a multilayer web comprised of a backing layer, a drug-containing pressure sensitive adhesive layer, and a release layer or liner in which cutting is progressively achieved along a line coplanar with the axes of a cutting roller and anvil roller counter-rotating in proximity to each other. In one embodiment, cutting is achieved completely through the web about the periphery of the transdermal drug delivery device, while simultaneously achieving a scoring only of the release liner without penetration of the pressure sensitive adhesive layer or backing layer. In an alternate embodiment there are two arrangements of rollers. A first arrangement has a cutting edge for scoring the web. After scoring, the web is passed to a second arrangement for cutting through the web to result in the transdermal drug delivery device.
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LaPrade Ronald E.
Sablotsky Steven
Noven Pharmaceuticals Inc.,
Weston Caleb
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