Flanged member with barrier layer

A process for making a fuel system component having a body portion and a flange member having a barrier layer for inhibiting hydrocarbon vapour flow through comprising:

• forming said body portion, said body portion having an internal passageway,
• forming a multi-layer parison,
• said parison comprising at least a first polymeric layer, a second polymeric layer and said barrier layer wherein said barrier layer is between said first and second layers,
• expanding said parison to form a tube, having an axis, a width and a wall,
• said first and second polymeric layers, and said barrier layer extending axially of said tube,
• said wall defining an internal aperture extending axially along said tube
• and cutting said tube generally transversely to said axis to form a flange member wherein said flange member has first and second ends and the distance between said first and second ends is less than the width of said tube and attaching one end of said flange member to said body portion with said internal aperture in registry with said internal passageway.

A process for making a fuel system component having a body portion and a flange member having a barrier for inhibiting hydrocarbon vapour flow-through comprising, forming said body portion,

• said body portion having an internal passageway, forming a parison,
• said parison comprising a barrier for inhibiting hydrocarbon vapour flow-through,
• expanding said parison to form a tube having an axis, a width and a wall,
• said wall defining an internal aperture extending axially along said tube, and cutting said tube transversely to said axis to form a flange member, wherein said flange member has first and second ends and the distance between said first and second ends is less than the width of said tube and,
• attaching one end of said flange member to said body portion with said internal aperture in registry with said internal passageway.