Claims
- 1. A non-PVC, non-DEHP material for use in manufacturing medical grade tubing comprising a multilayer coextruded structure comprising:a layer including a blend of polyurethane and polyester; a tie layer: and at least a second layer comprising a blend chosen from the group consisting of: polypropylene, ethylenevinyl acetate, and polyurethane; polypropylene and styrene-ethylene-butylene-styrene; polypropylene, styrene-ethylene-butylene-styrene, and ethylenevinyl acetate; polypropylene, ethylenevinyl acetate, styrene-ethylene-butylene-styrene, and thermoplastic polyester elastomer; polypropylene, ethylenevinyl acetate, styrene-ethylene-butylene-styrene, thermoplastic polyester elastomer, and polyurethane; polyester thermoplastic polyester elastomer, and polyurethane; polyester and polyurethane; and polypropylene, styrene-ehtylene-butylene-styrene, and polyurethane.
- 2. A container including a medical grade tubing comprising:a container constructed from a plastic material; and a multilayer coextruded structure that does not include PVC or DEHP including a layer comprising a blend of polyurethane and polyester a tie layer and at least one layer comprising a blend chosen from the group consisting of: polypropylene, ethylenevinyl acetate, and polyurethane; polypropylene and styrene-ethylene-butylene-styrene; polypropylene, styrene-ethylene-butylene-styrene, and ethylenevinyl acetate; polypropylene, ethylenevinyl acetate, styrene-ethylene-butylene-styrene, and thermoplastic polyester elastomer; polypropylene, ethylenevinyl acetate, styrene-ethylene-butylene-styrene, thermoplastic polyester elastomer, and polyurethane; polyester thermoplastic polyester elastomer, and polyurethane; polyurethane and polyester; and polypropylene, styrene-ehtylene-butylene-styrene, and polyurethane.
- 3. The non-PVC, non-DEHP material of claim 1 wherein the multilayer coextruded structure comprises:a first layer comprising a blend of polypropylene, ethylenevinyl acetate, and polyurethane; and a second layer comprising a blend of polyurethane and polyester.
- 4. The non-PVC, non-DEHP material of claim 1 wherein the multilayer coextruded structure comprises:a first layer comprising a blend of polypropylene, styrene-ethylene-butylene-styrene; a second layer comprising a blend of polyurethane and polyester; and a tie layer between the first and second layer.
- 5. The non-PVC, non-DEHP material of claim 1 wherein the multilayer coextruded structure comprises:a first layer comprising a blend of polypropylene, styrene-ethylene-butylene-styrene, and ethylenevinyl acetate; a second layer comprising a blend of polyurethane and polyester; and a tie layer between the first and second layers.
- 6. The non-PVC, non-DEHP material of claim 1 wherein the multilayer coextruded structure comprises:a first layer comprising a blend of polypropylene, ethylenevinyl acetate, and polyurethane; a second layer comprising a blend of polyurethane and polyester; and a tie layer between the first and second layers.
- 7. The non-PVC, non-DEHP material of claim 1 wherein the multilayer coextrnded structure comprises:a first layer comprising a blend of polypropylene, ethylenevinyl acetate, and polyurethane; a second layer comprising a blend of polyurethane and polyester; and a tie layer between the first and second layers.
- 8. The non-PVC, non-DEHP material of claim 1 wherein the multilayer coextruded structure comprises:a first layer comprising a blend of polyester and polyurethane; a second layer comprising a blend of polypropylene, ethylenevinyl acetate, and polyurethane; and a third layer comprising a blend of polyester and polyurethane.
- 9. The non-PVC, non-DEHP material of claim 1 wherein the multilayer coextruded structure comprises:a first layer comprising a blend of polyester, thermoplastic polyester elastomer, and polyurethane; a second layer comprising a blend of polypropylene, ethylenevinyl acetate, and polyurethane; and a third layer comprising a blend of polyester and polyurethane.
- 10. The non-PVC, non-DEHP material of claim 1 wherein the multilayer coextruded structure comprises:a first layer comprising a blend of polypropylene, ethylenevinyl acetate, styrene-ethylene-butylene-styrene, and thermoplastic polyester elastomer; a second layer comprising a blend of polypropylene, ethylenevinyl acetate, and polyurethane; and a third layer comprising a blend of polyester and polyurethane.
- 11. The non-PVC, non-DEHP material of claim 1 wherein the multilayer coextruded structure comprises:a first layer comprising a blend of polyester and polyurethane; a second layer comprising a blend of polypropylene, styrene-ethylene-butylene-styrene, and polyurethane; and a third layer comprising a blend of polyester and polyurethane.
- 12. The non-PVC, non-DEHP material of claim 1 wherein the multilayer coextruded structure comprises:a first layer comprising a blend of polyester, thermoplastic polyester elastomer, and polyurethane; a second layer comprising a blend of polypropylene, styrene-ethylene-butylene-styrene, and polyurethane; and a third layer comprising a blend of polyester and polyurethane.
- 13. The non-PVC, non-DEBT material of claim 1 wherein the multilayer coextruded structure comprises:a first layer comprising a blend of polypropylene, ethylenevinyl acetate, styrene-ethylene-butylene-styrene, and thermoplastic polyester elastomer; a second layer comprising a blend of polypropylene, styrene-ethylene-butylene-styrene, and polyurethane; and a third layer comprising a blend of polyester and polyurethane.
- 14. The non-PVC, non-DEHP material of claim 1 wherein the multilayer coextruded structure comprises:a first layer comprising a blend of polypropylene, ethylenevinyl acetate, styrene-ethylene-butylene-styrene, and thermoplastic polyester elastomer; a second layer comprising a blend of polypropylene, styrene-ethylene-butylene-styrene, and polyurethane; and a third layer comprising a blend of polyester and plyurethane.
- 15. The non-PVC, non-DEHP material of claim 1 wherein the multilayer coextruded structure comprises:an outer layer having a thickness of approximately .004 to about .006 inches; a tie layer of approximately .001 to about .003; and a core layer of approximately .025 inches to about .030 inches.
- 16. The container of claim 2 wherein the multilayer coextruded structure comprises:a first layer comprising a blend of polypropylene, ethylenevinyl acetate, and polyurethane; and a second layer comprising a blend of polyurethane and polyester.
- 17. The container of claim 2 wherein the multilayer coextruded structure comprises:a first layer comprising a blend of polypropylene, styrene-ethylene-butylene-styrene; a second layer comprising a blend of polyurethane and polyester; and a tie layer between the first and second layer.
- 18. The container of claim 2 wherein the multilayer coextruded structure comprises:a first layer comprising a blend of polypropylene, styrene-ethylene-butylene-styrene, and ethylenevinyl acetate; a second layer comprising a blend of polyurethane and polyester; and a tie layer between the first and second layers.
- 19. The container of claim 2 wherein the multilayer coextruded structure comprises:a first layer comprising a blend of polypropylene, ethylenevinyl acetate, and polyurethane; a second layer comprising a blend of polyurethane and polyester; and a tie layer between the first and second layers.
- 20. The container of claim 2 wherein the multilayer coextruded structure comprises:a first layer comprising a blend of polypropylene, ethylenevinyl acetate, and polyurethane; a second layer comprising a blend of polyurethane and polyester; and a tie layer between the first and second layers.
- 21. The container of claim 2 wherein the multilayer coextruded structure comprises:a first layer comprising a blend of polyester and polyurethane; a second layer comprising a blend of polypropylene, ethylenevinyl acetate, and polyurethane; and a third layer comprising a blend of polyester and polyurethane.
- 22. The container of claim 2 wherein the multilayer coextruded structure comprises:a first layer comprising a blend of polyester, thermoplastic polyester elastomer, and polyurethane; a second layer comprising a blend of polypropylene, ethylenevinyl acetate, and polyurethane; and a third layer comprising a blend of polyester and polyurethane.
- 23. The container of claim 2 wherein the multilayer coextruded structure comprises:a first layer comprising a blend of polypropylene, ethylenevinyl acetate, styrene-ethylene-butylene-styrene, and thermoplastic polyester elastomer; a second layer comprising a blend of polypropylene, ethylenevinyl acetate, and polyurethane; and a third layer comprising a blend of polyester and polyurethane.
- 24. The container of claim 2 wherein the multilayer coextruded structure comprises:a first layer comprising a blend of polyester and polyurethane; a second layer comprising a blend of polypropylene, styrene-ethylene-butylene-styrene, and polyurethane; and a third layer comprising a blend of polyester and polyurethane.
- 25. The container of claim 2 wherein the multilayer coextruded structure comprises:a first layer comprising a blend of polyester, thermoplastic polyester elastomer, and polyurethane; a second layer comprising a blend of polypropylene, styrene-ethylene-butylene-styrene, and polyurethane; and a third layer comprising a blend of polyester and polyurethane.
- 26. The container of claim 2 wherein the multilayer coextruded structure comprises:a first layer comprising a blend of polypropylene, ethylenevinyl acetate, styrene-ethylene-butylene-styrene, and thermoplastic polyester elastomer; a second layer comprising a blend of polypropylene, styrene-ethylene-butylene-styrene, and polyurethane; and a third layer comprising a blend of polyester and polyurethane.
- 27. The container of claim 2 wherein the multilayer coextruded structure comprises:a first layer comprising a blend of polypropylene, ethylenevinyl acetate, styrene-ethylene-butylene-styrene, and thermoplastic polyester elastomer; a second layer comprising a blend of polypropylene, styrene-ethylene-butylene-styrene, and polyurethane; and a third layer comprising a blend of polyester and plyurethane.
- 28. The container of claim 2 wherein the multilayer coextruded structure comprises:an outer layer having a thickness of approximately .004 to about .006 inches; a tie layer of approximately .001 to about .003; and a core layer of approximately .025 inches to about .030 inches.
Parent Case Info
This Application is a division of Ser. No. 07/828,088 filed Jan. 30, 1992.
US Referenced Citations (31)
Foreign Referenced Citations (6)
Number |
Date |
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EP |
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Sep 1979 |
GB |
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JP |
9211820 |
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WO |
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