Composite pressure vessel with a monolayer liner
AssigneePlastic Omnium New Energies France
InventorsBjorn Criel, Pierre De Keyzer
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Abstract
A composite pressure vessel that includes a monolayer liner and a reinforcing structure arranged on top of the liner. The liner is made by injection moulding and includes at least two shells weldable together. Each shell is made of a polymer composition including at least 45% by weight of an aromatic polyamide relative to the total weight of the polymer composition, and at least 10% by weight of an aliphatic polyamide relative to the total weight of the polymer composition.
Claims9
A composite pressure vessel comprising a monolayer liner and a reinforcing structure arranged on top of the liner, the liner being made by injection moulding, the liner comprising at least two shells weldable together,
- wherein each shell is made of a polymer composition, wherein the polymer composition for each shell is a blend comprising:
- at least 45% by weight of an aromatic polyamide relative to the total weight of said polymer composition, wherein the aromatic polyamide is a polyphtalamide (PPA), and
- at least 10% by weight of an aliphatic polyamide relative to the total weight of said polymer composition, wherein the maximum content of aromatic group-containing repeating units in an aliphatic polyamide is 0 mol % based on 100 mol % repeating units in the aliphatic polyamide.
Dependencies are inferred from the claim text.