METHOD FOR PRODUCING LIQUID CRYSTALLINE POLYESTER PREPREG AND LIQUID CRYSTALLINE POLYESTER PREPREG

摘要

PURPOSE: A method for producing liquid crystalline polyester prepreg is provided to suppress the occurrence of irregularities in quality even after heat treatment and to enable use for mass production of a liquid crystalline polyester prepreg. CONSTITUTION: A method for producing a liquid crystalline polyester prepreg comprises the steps of: impregnating an inorganic fiber sheet with a solution composition containing an aromatic liquid crystalline polyester and a solvent to prepare a sheet substrate; winding the sheet substrate into a form of roll comprising two or more layers to prepare a rolled substrate; and heat-treating the rolled substrate, wherein in the step of winding, corrugated spacers placed on both sides in the traverse direction of the sheet substrate are wound together with the sheet substrate.