Claims
- 1. An active substance patch comprising:
a laminate comprising: (A) a skin-facing backing layer, and (B) a barrier layer that is configured to be remote from a user's skin when said patch is in use, said barrier layer being impermeable to an active substance; and an adhesive comprising said active substance, said adhesive being disposed on a skin-facing portion of said skin-facing backing layer, wherein said barrier layer is configured so that it may be separated from said backing layer by a user.
- 2. The active substance patch of claim 1, wherein said barrier layer comprises a film based on polyamide.
- 3. The active substance patch of claim 2, wherein said backing layer comprises a polyolefin film.
- 4. The active substance patch of claim 1, wherein said barrier layer comprises a film based on a derivative of polyamide.
- 5. The active substance patch of claim 1, wherein said barrier layer comprises a film based on a hologenated polymer of polyamide.
- 6. The active substance patch of claim 1, wherein said barrier layer comprises a film based on polyimide.
- 7. The active substance patch of claim 1, wherein said barrier layer comprises a film based on a derivative of polyimide.
- 8. The active substance patch of claim 1, wherein said barrier layer comprises a film based on a hologenated polymer of polyamide.
- 9. The active substance patch of claim 1, wherein said barrier layer comprises a film based on polyethylene terephthalate.
- 10. The active substance patch of claim 1, wherein said barrier layer comprises a film based on a derivative of polyethylene terephthalate.
- 11. The active substance patch of claim 1, wherein said barrier layer comprises a film based on a hologenated polymer of polyethylene terephthalate.
- 12. The active substance patch of claim 1, wherein said barrier layer is applied to said backing layer by a chemical process.
- 13. The active substance patch of claim 1, wherein said barrier layer is applied to said backing layer by a physical process.
- 14. The active substance patch of claim 1, wherein said backing layer comprises a polyolefin film.
- 15. The active substance patch of claim 14, wherein said polyolefin film is based on ethylene or propylene.
- 16. The active substance patch of claim 1, wherein said backing layer comprises a nonwoven.
- 17. The active substance patch of claim 16, wherein said nonwoven comprises one or more materials selected from the group consisting of: polyester, one or more polyamides, viscose and cotton.
- 18. The active substance patch of claim 1, wherein said backing layer comprises a knit.
- 19. The active substance patch of claim 18, wherein said knit comprises one or more materials selected from the group consisting of: polyester, one or more polyamides, viscose and cotton.
- 20. An active substance patch comprising:
a backing layer having both a first side, and a second side that is opposite said first side; a barrier layer disposed adjacent said first side of said backing layer, said barrier layer being impermeable to an active substance; and an adhesive disposed adjacent said second side of said backing layer, said adhesive comprising said active substance, wherein said barrier layer is configured so that it may be separated from said backing layer by a user.
- 21. A method of applying an active substance patch comprising:
using an adhesive disposed on said patch to affix said patch to a user, said adhesive comprising an active substance; and removing a barrier layer from said patch, said barrier layer being substantially impermeable to said active substance.
- 22. The method of claim 21, wherein said step of removing said barrier layer is performed before said step of affixing said patch to said user.
- 23. The method of claim 21, wherein said step of removing said barrier layer is performed after said step of affixing said patch to said user.
- 24. The method of claim 21, wherein said patch comprises a backing layer disposed between said barrier layer and said adhesive.
Priority Claims (1)
Number |
Date |
Country |
Kind |
100 56 014.8 |
Nov 2000 |
DE |
|
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This is a continuation application of PCT/EPO1/12602, filed Oct. 31, 2001, which is incorporated herein by reference in its entirety, and also claims the benefit of German Priority Application No. 100 56 014.8, filed Nov. 11, 2000.
Continuations (1)
|
Number |
Date |
Country |
Parent |
PCT/EP01/12602 |
Oct 2001 |
US |
Child |
10436680 |
May 2003 |
US |