Method of making pressure-sensitive adhesive article including active agent

Patent metadata

Field	Value
Publication number	US-9592161-B2
Application number	US-201214363444-A
Country	US
Kind code	B2
Filing date	Dec 10, 2012
Priority date	Dec 13, 2011
Publication date	Mar 14, 2017
Grant date	Mar 14, 2017

Abstract

A method includes contact printing an active composition onto a surface of a release substrate to form a printed surface. The active composition spontaneously dewets the surface of the release substrate to form active deposits on the surface of the release substrate. The active composition comprises an active agent dissolved or dispersed in an aqueous liquid vehicle. A pressure-sensitive adhesive layer is disposed on the printed surface.

First claim

What is claimed is:

1. A method of making a pressure-sensitive adhesive article, the method comprising:
contact printing an active composition onto a surface of a release substrate to form a printed surface, whereby the active composition spontaneously dewets the surface of the release substrate to form active deposits on the surface of the release substrate, wherein the active composition comprises an active agent dissolved or dispersed in an aqueous liquid vehicle; and
disposing a pressure-sensitive adhesive layer on the printed surface.

2. The method of claim 1 , wherein, as initially contacted with the surface of the release substrate, the active composition contacts a first area of the surface of the release substrate, and wherein the active deposits contact a second area of the surface of the release substrate, and wherein the second area is less than or equal to 50 percent of the first area.

3. The method of claim 1 , wherein the active composition further comprises a hydratable polymer.

4. The method of claim 1 , wherein the active agent comprises at least one non-volatile component.

5. The method of claim 1 , wherein the active agent comprises at least one of an antimicrobial agent, a topical antiseptic, or a cationic antiseptic.

6. The method of claim 1 , wherein the active agent comprises chlorhexidine gluconate.

7. The method of claim 1 , wherein the active agent comprises a polymer.

8. The method of claim 1 , wherein the surface of the release substrate comprises at least one of a silicone polymer, fluoropolymer, or acrylic polymer.

9. The method of claim 1 , wherein the surface of the release substrate is microstructured.

10. The method of claim 1 , wherein the active deposits are arranged in an array on the surface of the release substrate.

11. The method of claim 1 , wherein the contact printing comprises flexographic printing.

12. The method of claim 1 , wherein the contact printing comprises gravure roll coating.

13. The method of claim 1 , wherein the contact printing comprises knife coating or doctor blade coating.

14. The method of claim 1 , further comprising removing at least a portion of the liquid vehicle from the active composition after it is contact printed onto the surface of the release substrate, but before the pressure-sensitive adhesive layer is disposed on the printed surface.

15. The method of claim 1 , wherein, prior to contacting the surface of the release substrate, the pressure-sensitive adhesive is disposed on a backing.

16. The method of claim 15 , wherein at least a portion of the backing is transparent or translucent.

17. The method of claim 15 , wherein at least a portion of the backing and at least a portion of the pressure-sensitive adhesive layer are transparent or translucent.

18. The method of claim 1 , wherein the pressure-sensitive layer is formed by coating a pressure-sensitive adhesive composition on the printed surface.

Assignees

• 3M Innovative Properties Co

Inventors

• Rule Joseph D
• Tokie Jeffrey H
• Saulsbury Kim B
• Conrad-Vlasak Deena M
• Kumar Kanta

Classifications

• A61L2300/20

  containing or releasing organic materials · CPC title

• C08K2201/013

  Additives applied to the surface of polymers or polymer particles · CPC title

• A61L2300/606

  Coatings · CPC title

• A61K9/7038

  Transdermal patches of the drug-in-adhesive type, i.e. comprising drug in the skin-adhesive layer · CPC title

• C08K5/0058

  Biocides; (macromolecular substances as carriers for biocide material A01N25/10) · CPC title