초록

A multilayer film for ostomy and bowel management applications includes a barrier layer comprising at least about 90% wt. nylon 6/69. The multilayer film provides excellent mechanical and odor barrier properties, and softness and quietness desired in ostomy and bowel management applications.

대표청구항 ▼

1. A multi-layer, chlorine-free film for ostomy and bowel management applications, comprising: a barrier layer having first and second sides, the barrier layer comprising a low melt semi-crystalline polyamide resin having a melting temperature between about 125° C. and about 135° C. present in a con

1. A multi-layer, chlorine-free film for ostomy and bowel management applications, comprising: a barrier layer having first and second sides, the barrier layer comprising a low melt semi-crystalline polyamide resin having a melting temperature between about 125° C. and about 135° C. present in a concentration of about 90 percent to about 100 percent by weight (% wt.) of the barrier layer, the barrier layer being substantially impermeable to malodor causing compounds, wherein the barrier layer has a thickness of about 35 μm to about 80 μm, wherein a thickness of the barrier layer makes up about 30% to 70% of a total thickness of the film; andfirst and second outer layers, each outer layer comprising at least one selected from an ethylene vinyl acetate or ethylene methyl acrylate copolymer and blends thereof, or polypropylene-based resins and blends thereof, wherein each outer layer is arranged on a respective side of the barrier layer. 2. The film of claim 1, further comprising first and second tie layers, the tie layers formed from a maleic anhydride grafted resin, the resin being one or more of an ethylene-based copolymer, a propylene-based copolymer, an ethylene-octene polymer and a styrene block copolymer, wherein each tie layer contacts a respective side of the barrier layer. 3. The film of claim 2, further comprising first and second inner layers, the inner layers formed from one of an ethylene propylene copolymer (polypropylene elastomer) based resin, an ethylene-octene based resin and blends thereof, each inner layer contacting a respective tie layer, wherein the outer layers contact a respective inner layer. 4. The film of claim 1, wherein the barrier layer is formed from about 100% wt. nylon 6/69. 5. The film of claim 1, wherein the barrier layer comprises about 90% wt. to about 99% wt. nylon 6/69 and about 1% wt. to about 10% wt. amorphous polyamide. 6. The film of claim 5, wherein the barrier layer comprises about 98% wt. nylon 6/69 and about 2% wt. amorphous polyamide. 7. The film of claim 1, wherein a total thickness of the film is between about 60 μm and about 300 μm. 8. An ostomy pouch, comprising: two side walls, wherein each of the side walls is formed of the film of claim 1;a stoma-receiving opening on one of the side walls; andwherein the two side walls are sealed together along peripheral edges of the side walls. 9. A bowel management tube formed of the film of claim 1, wherein the film has a total thickness between about 230 μm and about 270 μm, and the barrier layer has a thickness between about 60 μm and about 80 μm. 10. An ostomy pouch formed of a multilayer film, the multilayer film comprising: a barrier layer having first and second sides, the barrier layer comprising a low melt semi-crystalline polyamide resin having a melting temperature between about 125° C. and about 135° C. present in a concentration of about 90 percent to about 100 percent by weight (% wt.) of the barrier layer, the barrier layer being substantially impermeable to malodor causing compounds, wherein the barrier layer has a thickness of about 35 μm to about 80 μm, wherein a thickness of the barrier layer makes up about 30% to 70% of a total thickness of the film;first and second tie layers, the tie layers being a maleic anhydride grafted resin, the resin being one or more of an ethylene-based copolymer, a propylene-based copolymer, an ethylene-octene polymer and a styrene block copolymer; andfirst and second outer layers, each outer layer comprising an ethylene vinyl acetate or ethylene methyl acrylate copolymer and blends thereof, and polypropylene-based resins and blends thereof, wherein each tie layer is arranged between the barrier layer and a respective outer layer. 11. The ostomy pouch of claim 10, wherein the multilayer film is a five-layer film having a total thickness between about 90 μm and about 110 μm, wherein the barrier layer has a thickness between about 35 μm and about 55 μm. 12. The ostomy pouch of claim 10, wherein the multilayer film is a seven-layer film and further comprising first and second inner layers, the inner layers being one of an ethylene propylene copolymer (polypropylene elastomer) based resin, an ethylene-octene based resin and blends thereof, each inner layer arranged between a respective tie layer and a respective outer layer, wherein the seven-layer film has a total thickness between about 90 μm and about 110 μm, wherein the barrier layer has a thickness between about 35 μm and about 55 μm. 13. The ostomy pouch of claim 10, wherein the barrier layer is formed from about 100% wt. nylon 6/69. 14. The ostomy pouch of claim 10, wherein the barrier layer comprises about 95% wt. to about 99% wt. nylon 6/69 and about 1% wt. to about 5% wt. amorphous polyamide. 15. The ostomy pouch of claim 10, wherein a thickness of the barrier layer makes up about 35% to 55% of a total thickness of the multilayer film.