Laminated material and skin contacting products formed therefrom

• US 7,815,617 B2
• Filed: 06/02/2005
• Issued: 10/19/2010
• Est. Priority Date: 06/04/2004
• Status: Active Grant

• Current Assignee: Hollister Incorporated
• Original Assignee: Hollister Incorporated
• Inventors: Taylor, Michael G., Giori, Claudio, Dircks, Lon E.
• Primary Examiner(s): HAND, MELANIE JO
• Application Number:
  US11/569,947
• Publication Number:
  US 20080269701A1
• Time in Patent Office: 1,965 Days
• Field of Search: 604/322, 604/332, 604/333, 604/336, 604/337, 442/327, 442/361, 442/364, 442/381, 442/389, 442/394, 442/399, 442/398
• US Class Current: 604/332
• CPC Class Codes: B32B 2037/1215 Hot-melt adhesive
• CPC Class Codes: B32B 2262/02 Synthetic macromolecular fibres
• CPC Class Codes: B32B 2262/08 Animal fibres, e.g. hair, wool, silk
• CPC Class Codes: B32B 2305/18 Fabrics, textiles
• CPC Class Codes: B32B 2307/7242 Non-permeable
• CPC Class Codes: B32B 2307/7248 Odour barrier
• CPC Class Codes: B32B 2317/10 Natural fibres, e.g. wool, cotton
• CPC Class Codes: B32B 2323/046 LDPE, i.e. low density polyethylene
• CPC Class Codes: B32B 2535/00 Medical equipment, e.g. bandage, prostheses, catheter medical patches B32B2556/00
• CPC Class Codes: B32B 27/12 next to a fibrous or filamentary layer
• CPC Class Codes: B32B 33/00 Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
• CPC Class Codes: B32B 37/12 characterised by using adhesives
• CPC Class Codes: B32B 7/12 using interposed adhesives or interposed materials with bonding properties
• CPC Class Codes: Y10T 428/24777 Edge feature
• CPC Class Codes: Y10T 428/249921 Web or sheet containing structurally defined element or component

Abstract

A laminated material suitable for use in forming skin contacting products is disclosed. The laminated material comprises three distinct layers including a fabric layer, a film layer and an adhesive layer therebetween. The adhesive layer substantially continuously bonds the fabric layer to the film layer.

Claims

1. A sidewall of a body-wearable pouch for the collection of human body wastes, said sidewall formed of a laminated material comprising three distinct layers including a heat sealable fabric layer, a multi-layer film having an odor barrier sublayer and a separate thermoplastic adhesive layer therebetween, the adhesive layer being a hot melt thermoplastic adhesive that is substantially coextensive with facing surfaces of the fabric layer and the film layer so as to substantially continuously bond the fabric layer to the film layer, said laminated material being neither soluble nor disintegratable in water, and wherein the thermoplastic layer has a thickness of approximately 1 mil, the film and adhesive layers have a total thickness of approximately 3½

mil, and the adhesive layer penetrates into the fabric layer.

2. The sidewall of claim 1 wherein the fabric layer is comprised of a synthetic fabric.

3. The sidewall of claim 1 wherein the fabric layer includes fibers comprising nylon, polypropylene, polyester, polyethylene or a sheath of polyolefin having a core disposed therein.

4. The sidewall of claim 3 wherein the core is comprised of any one or more of polypropylene, polyester and nylon.

5. The sidewall of claim 1 wherein the fabric layer is treated with water repellant or has water wicking fibers therein.

6. The sidewall of claim 1 wherein the film layer is a multilayer film having a sealing sublayer.

7. The sidewall of claim 6 wherein the odor barrier sublayer is comprised of polyamide, polyvinyl alcohol, ethylene vinyl alcohol, or polyvinylidene chloride.

8. The sidewall of claim 6 wherein the sealing sublayer is comprised of polyethylene or other polyolefins or copolymers or blends thereof.

9. An ostomy pouch having at least one sidewall including a laminated material, the laminated material comprising:

three distinct layers including a fabric layer, a film layer, and an adhesive layer therebetween bonding the fabric layer to the film layer;

the fabric layer being comprised of nylon, polypropylene, polyester, polyethylene or other polyolefins or copolymers or blends thereof, or a polyolefin sheath having a core disposed therein;

the film layer being a multilayer film having at least one odor barrier sublayer and at least one sealing sublayer, the odor barrier sublayer being comprised of polyamide, polyvinyl alcohol, ethylene vinyl alcohol, or polyvinylidene chloride, and the sealing sublayer being comprised of polyethylene or other polyolefins or copolymers or blends thereof; and

the adhesive layer comprising a hot-melt thermoplastic adhesive substantially continuously integrally bonding the fabric layer to the sealing sublayer of the film layer, and wherein the adhesive layer has a thickness of approximately 1 mil, the film and adhesive layers have a total thickness of approximately 3½

mil, and the adhesive layer penetrates into the fabric layer.

10. The ostomy pouch of claim 9 wherein the film layer is a multilayer film having multiple odor barrier sublayers and at least one sealing sublayer to form a sealing side of the film layer.

11. In a skin contacting product having sidewalls, the skin contacting product being a body wearable pouch for collecting human body waste, each of the sidewalls comprising:

a laminated material having three distinct layers including a fabric layer, a multi-layer film layer having an odor barrier sublayer, and an adhesive layer therebetween, the adhesive layer substantially continuously bonding the fabric layer to the film layer.

12. The skin contacting product of claim 11 wherein the fabric layer includes fibers comprising nylon, polypropylene, polyester, polyethylene or other polyolefins or copolymers or blends thereof, or a sheath of a polyolefin having a core.

13. The skin contacting product of claim 12 wherein the core is comprised of any one or more of polypropylene, polyester and nylon.

14. The skin contacting product of claim 11 wherein the fabric layer is treated with water repellant.

15. The skin contacting product of claim 11 wherein the adhesive is a hot melt adhesive.

16. The skin contacting product of claim 11 wherein the adhesive layer is activated or cured by using chemical cross-linking agents, radio frequency, ultrasonic, e-beam, thermal, ultraviolet, or ambient temperature techniques.

17. The skin contacting product of claim 11 wherein the layer is a multilayer film having a sealing sublayer.

18. The skin contacting product of claim 11 wherein the odor barrier sublayer is comprised of polyamide, polyvinyl alcohol, ethylene vinyl alcohol, or polyvinylidene chloride.

19. The skin contacting product of claim 17 wherein the sealing sublayer is comprised of polyethylene or other polyolefins or copolymers or blends thereof.

20. The skin contacting product of claim 11 wherein the sidewalls are formed to define an ostomy pouch.