Composite pipe having a PTFE inner layer and a covering layer of a fiber-reinforced plastics material
AssigneeSgl Carbon SE
InventorsRalf Troschitz, Willibald Schmidt, Heribert Weisenfeld
Life of this patent
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Abstract
A composite pipe includes a polytetrafluoroethylene (PTFE) inner layer and a covering layer of fiber-reinforced plastics material which are joined to one another by force-locking and form-locking through an intermediate layer. The intermediate layer is formed of a PFA layer and a layer of glass or carbon fibers, in order to improve adhesive and shear strength between the PTFE inner layer and the covering layer. The PFA layer is adjacent the PTFE inner layer and the layer of glass or carbon fibers is adjacent the covering layer of fiber-reinforced plastics material.
Claims7
A composite pipe, comprising:
- a PTFE inner layer;
- a covering layer of fiber-reinforced plastics material;
- and
- an intermediate layer force-lockingly and form-lockingly joining said inner layer and said covering layer to one another, said intermediate layer having two sides, a surface of PFA on one of said sides and a glass or carbon fiber textile product on the other of said sides.
A composite pipe, comprising:
- an inner layer having antistatically adjusted cover layers;
- a covering layer of fiber-reinforced plastics material;
- and
- an intermediate layer force-lockingly and form-lockingly joining said inner layer and said covering layer to one another, said intermediate layer having two sides, a surface of PFA on one of said sides and a glass or carbon fiber textile product on the other of said sides.
Dependencies are inferred from the claim text.