Impervious, chemically stable thermoplastic tubing and film

Details Impervious, chemically stable thermoplastic tubing and film Impervious, chemically stable thermoplastic tubing and film

B - Operations, Transporting

32

B

B32B 27/08 (2006.01) B32B 1/08 (2006.01) B65D 81/24 (2006.01) B67D 1/08 (2006.01) F16L 11/04 (2006.01) F16L 11/12 (2006.01) B67D 1/00 (2006.01)

Patent

CA 2290129

A layered tubing for conveying a non-toxic fluid comprises an inner layer having an inner surface adapted for exposure to the fluid, the inner layer consisting essentially of a polyester comprising units of the formula C10H8O4, and an outer layer comprising a thermoplastic polymer, the outer layer being bonded either directly or indirectly to the inner layer. Such a tubing is useful for conveying non-toxic fluids such as water, syrups and beverages. The polyester can also be used in the form of a film for packaging solids suitable for human consumption, such as food and medicaments.

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