| 摘要 |
PURPOSE:To stably obtain the subject hot-pressed material having high strength an modulus and stable quality and useful as hightenacity fiber, etc., by forming a conjugate fiber from a liquid crystal resin and other resin, collecting the fibers and hotpressing the collected bundle at a temperature above a specific level. CONSTITUTION:The objective hot-pressed material can be produced by carrying out conjugate spinning of (A) a liquid crystal resin as the 1st resin and (B) a second resin, collecting obtained conjugate fibers and hot-pressing the collected fiber aggregate at a temperature above the softening point of the component B. It is preferable to carry out the hot-pressing at or above the softening point of the component B after heat-treatment of the collected fiber aggregate at >=(Tm-10 deg.C) (Tm is melting point of the component A) and the component A is preferably a resin having a melting point higher than that of the component B by 10 deg.C, especially a liquid crystal polyester or a liquid crystal polyester amide. |
