MULTILAYERED POLYMER STRUCTURE FOR MEDICAL PRODUCTS

Title:

MULTILAYERED POLYMER STRUCTURE FOR MEDICAL PRODUCTS

Document Type and Number:

WIPO Patent Application WO1999015289

Kind Code:

A3

Abstract:

The present invention provides a multiple layer structure (10) for fabricating medical products. The layer structure (10) has a core layer (14) of an ethylene vinyl alcohol copolymer having an ethylene content of about 25-45 mole percent, a solution contact layer of a polyolefin positioned on a first side of the core layer, an outer (12) positioned on a second side of the core layer opposite the solution contact layer (16), the outer layer (12) being selected from the group consisting of polyamides, polyesters and polyolefins; two tie layers (18) - one of each adhered to the first and second sides of the core layer (14) and positioned between the solution contact layer (16) and the core layer (14) and between the outer layer (12) and the core layer (14), and wherein the structure (10) is produced in a cast coextrusion process.

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Inventors:

SMITH SIDNEY T
ROSENBAUM LARRY A
GIOVANETTO STEVEN
BUCHANAN BRADLEY
DING Y SAMUEL
FAN SUCHUAN C
NEBGEN GREGG

Application Number:

PCT/US1998/019690

Publication Date:

June 17, 1999

Filing Date:

September 18, 1998

Export Citation:

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Assignee:

BAXTER INT (US)

International Classes:

B32B27/08; B32B27/28; A61J1/10; (IPC1-7): B32B27/08; A61J1/00

Foreign References:

EP0698487A1	1996-02-28
US4254169A	1981-03-03
US5164258A	1992-11-17
US4361628A	1982-11-30
EP0465681A1	1992-01-15
EP0451977A1	1991-10-16
EP0561428A1	1993-09-22
GB2131739A	1984-06-27
EP0504808A1	1992-09-23
EP0230344A2	1987-07-29

Other References: