Absorbing agents and cover layer which is impermeable to...

Details Absorbing agents and cover layer which is impermeable to... Absorbing agents and cover layer which is impermeable to...

2007-05-22

2007-05-22

Ahmad, Nasser (Department: 1772)

Stock material or miscellaneous articles

Layer or component removable to expose adhesive

Capsule or particulate matter containing

C427S002100, C428S040100, C428S040400, C428S040900, C428S041300, C428S041700, C428S042100, C428S323000, C428S325000, C428S327000, C524S492000, C524S493000, C602S057000, C602S058000, C602S900000

Reexamination Certificate

active

10433373

ABSTRACT:
This present invention concerns a cover layer that is impermeable to the active substances and/or a removable protective layer of a transdermal therapeutic system, comprising a thermoplastic film which either directly contains the absorbing agents and channel-forming agents or is coated with a polymer support (thermoplast) containing these substances. The polymer support can either be applied over the entire surface of the film or in patterns, directly during production. The thermoplastic film that is used and the polymer support can be made from either the same or different materials.

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D. Satas, Handbook of Pressure Sensitive Adhesive Technology, “Acrylic Adhesives”, 2ndEd., pp. 396-456, Van Nostrand Reinhold, NY (1989).
Loretta A. Sobieski, et al., “Silicone Pressure Sensitive Adhesives”, D. Satas, Handbook of Pressure Sensitive Adhesive Technology, 2ndEd., pp. 508-517, Van Nostrand Reinhold, NY (1989).

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