| 摘要 |
PCT No. PCT/GB94/01672 Sec. 371 Date Apr. 22, 1996 Sec. 102(e) Date Apr. 22, 1996 PCT Filed Aug. 1, 1994 PCT Pub. No. WO95/04855 PCT Pub. Date Feb. 16, 1995An extruded polymeric rod is elongated in the solid state by being drawn through a forming device to produce a solid polymeric core having an orientated structure which comprises elongated crystals orientated in the axial direction of the core. The core may also comprise crystals orientated in respective radial directions. The single rod may be replaced by a bundle of rods.
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