Tape-wrapped multilayer tubing and methods for making the same

A substantially hermetic tubing comprising:

• a. an inner tube;
• and
• b. a diffusion barrier tape laminate substantially hermetically coupled to the outside circumference of the inner tube for substantially the whole length of the inner tube, including:
• i. a diffusion barrier material;
• ii. a first layer of thermoplastic material applied to a first side of the diffusion barrier material;
• iii. a second layer of thermoplastic material applied to a second side of the diffusion barrier material, and;
• iv. the first layer and the second layer of thermoplastic material are sealed together;
• wherein the diffusion barrier tape laminate does not seal to the inner tubing, wherein the inner tubing is able to slide within the diffusion barrier tape laminate.

A substantially hermetic tubing comprising:

• a. an inner tube;
• and
• b. a diffusion barrier tape laminate substantially hermetically coupled to the outside circumference of the inner tube for substantially the whole length of the inner tube, including:
• i. a diffusion barrier material;
• ii. a first layer of thermoplastic material applied to a first side of the diffusion barrier material;
• iii. a second layer of thermoplastic material applied to a second side of the diffusion barrier material, and;
• iv. the first layer and the second layer of thermoplastic material are sealed together;
• wherein the layers of thermoplastic coupled to the diffusion barrier tape are low density polyethylene.

A substantially hermetic tubing comprising:

• a. an inner tube;
• and
• b. a diffusion barrier tape laminate substantially hermetically coupled to the outside circumference of the inner tube for substantially the whole length of the inner tube, including:
• i. a diffusion barrier material;
• ii. a first layer of thermoplastic material applied to a first side of the diffusion barrier material;
• iii. a second layer of thermoplastic material applied to a second side of the diffusion barrier material, and;
• iv. the first layer and the second layer of thermoplastic material are sealed together;
• wherein the diffusion barrier tape laminate is wider than the circumference of the inner tube, further wherein an extra width of the diffusion barrier tape laminate meets at one spot of the inner tube and extends perpendicularly therefrom, creating two perpendicularly extending flags, and further wherein a seal exists between the perpendicularly extending flags.

A substantially hermetic tubing comprising:

• a. an inner tube;
• and
• b. a diffusion barrier tape laminate substantially hermetically coupled to the outside circumference of the inner tube for substantially the whole length of the inner tube, including:
• i. a diffusion barrier material;
• ii. a first layer of thermoplastic material applied to a first side of the diffusion barrier material;
• iii. a second layer of thermoplastic material applied to a second side of the diffusion barrier material, and;
• iv. the first layer and the second layer of thermoplastic material are sealed together;
• wherein the diffusion barrier tape laminate is wound in a helical fashion around the circumference of the inner tube, wherein the diffusion barrier tape partially overlaps itself as it is wound down the length of the inner tube and is configured with an overlap area, further wherein the overlapping barrier tape laminate seals the barrier tape laminate around the inner tubing, and
• wherein an additional layer of diffusion barrier tape laminate is wound in the opposite direction around a once-wrapped inner tubing.