Pipe for high pressure fluid
AssigneeNobel Plastiques
InventorJean-Claude Douchet
Life of this patent
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Abstract
A pipe comprising a multilayer inner core (1) whose outer layer is made of polyamide or of EVOH to provide an effective barrier function, and outer reinforcement that withstands pressure. The outer reinforcement comprises at least one filamentary reinforcing structure (4) placed around the core (1), a covering outer layer (7), and at least one bonding agent (3, 5) for bonding the reinforcing structure (4) to the inner core (1), the agent being selected from polyurethane or polyamide hot melt adhesives and thermosetting polyesters.
Claims14
A pipe comprising an inner core whose outer surface is made of polyamide, and outer reinforcement that withstands pressure, wherein the outer reinforcement comprises at least one filamentary reinforcing structure placed around the inner core, a covering outer layer, and at least one bonding agent for bonding the reinforcing structure to the inner core, the bonding agent being selected from the group consisting of polyurethane, polyamide hot melt adhesives and thermosetting polyesters.
A pipe comprising an inner core whose outer surface is made of EVOH, and outer reinforcement that withstands pressure, wherein the outer reinforcement comprises at least one filamentary reinforcing structure placed around the inner core, a covering outer layer, and at least one bonding agent for bonding the reinforcing structure to the inner core, the bonding agent being selected from the group consisting of polyurethane, polyamide hot melt adhesives and thermosetting polyesters.
Dependencies are inferred from the claim text.