| 摘要 |
<p>A magnetic disk substrate consisting of a thermotropic liquid crystal polymer composition is produced by charging a thermotropic liquid crystal polymer composition which is a (co)polymer containing the following repeating units as the monomer unit into a disc-like mold cavity having a flat inner surface and kept at a temperature within the range of 100 to 240°C in the molten state and at a high shearing speed, then increasing the mold clamping pressure, if necessary, so that the molten resin coming into contact with at least one of the disc surfaces inside the mold is pressed vertically, and thereafter cooling the resin.</p> |
