Composite structural components containing thermotropic liquid crystalline polymer reinforcements for optical fiber cables
AssigneeDraka Comteq B.V.
InventorBrian G. Risch
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Abstract
A process for producing an optical fiber cable composite structural component, such as reinforcing members, buffer tubes, filler rods, jackets, and slotted cores, is disclosed. The composite structural components are produced by co-extruding a thermotropic liquid crystalline polymer (TLCP) and a thermoplastic matrix material into the composite structural component so that TLCP reinforcing fibrils are dispersed in the thermoplastic matrix material. The TLCP reinforcing fibrils undergo a high level of process induced orientation, are provided with a high aspect ratio, and small diameters. The composite structural component has a high modulus. The TLCP reinforcing fibrils may be made continuous or discontinuous.
Claims14
An optical fiber cable composite structural component having longitudinal and transverse axes comprising a thermoplastic matrix having molecularly oriented thermotropic liquid crystalline polymer (TLCP) fibrils oriented therein primarily in the longitudinal direction, wherein the fibrils have a diameter of up to about 100 μm and a length to diameter ratio of at least 10 to 1.
Dependencies are inferred from the claim text.