Method of producing a hollow body

A method for producing a hollow body for storing gases, the hollow body including at least one boss part having a projection, the method comprising:

• sheathing the at least one boss part with a reactive material;
• heating the sheathed at least one boss part;
• introducing the heated, sheathed at least one boss part into a blow mould, and surrounding the heated, sheathed at least one boss part with a tube composed of an impermeable multilayer plastic to form the hollow body;
• bringing the tube into permanent contact with the sheathing on the projection to thereby obtain a permanent material connection between the impermeable multilayer plastic of the tube and the reactive material of the sheathing;
• and
• applying, before the tube is brought into permanent contact with the sheathing on the projection, an internal pressure to the impermeable multilayer plastic of the tube to obtain a final shape of the hollow body.

A method for producing a hollow body for storing gases, the method comprising:

• sheathing a boss part having a projection, at least in a region of the projection, with a plastic material;
• heating the sheathed at least one boss part;
• introducing the heated, sheathed at least one boss part into a blow mould, and surrounding the heated, sheathed at least one boss part with a tube composed of a plastic material to form the hollow body;
• applying an internal pressure to the plastic of the tube to obtain a final shape of the hollow body;
• bringing, after applying the internal pressure to the plastic of the tube, the tube into permanent contact with the sheathing on the projection to thereby obtain a permanent material connection between the plastic of the tube and the plastic material of the sheathing;
• and
• wrapping the hollow body with a fibre composite material.