Poly(amide-imide) liner
AssigneeTeleflex Incorporated
InventorsDiane P. Fukuda, Arthur S. Eldredge, Jr., Thomas F. Buck
Life of this patent
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Abstract
A motion transmitting remote control assembly (10) for transmitting motion in a curved path including a liner (12) disposed within a conduit (16) and a motion transmitting core element (14) moveably supported by the liner (12). The liner (12) is made essentially of polytetrafluoroethylene (PTFE). The assembly (10) is characterized by the liner (12) further including poly(amide-imide) for increasing the strength and lubricity thereof. Preferably, the liner comprises 97 weight percent polytetrafluoroethylene and 3 weight percent poly(amide-imide).
Claims7
A remote control assembly (10) of the type for transmitting motion in a curved path, said assembly (10) comprising:
- a conduit (11);
- a liner (12) made of a fluorocarbon polymer disposed in said conduit (11);
- and a core element (14) adapted for movement within said liner (12), said assembly (10) characterized by said liner (12) including poly(amide-imide) dispersed substantially uniformly throughout the fluorocarbon polymer for increasing the strength and lubricity of the liner (12), said liner (12) comprising between 75 weight percent and 99 weight percent fluorocarbon polymer and between 25 weight percent and one weight percent poly(amide-imide) respectively.
Dependencies are inferred from the claim text.