| 摘要 |
PROBLEM TO BE SOLVED: To manufacture a liquid crystal polyester-impregnated fiber sheet excellent in dimension stability. SOLUTION: After a sheet constituted of an aramid fiber is impregnated with a liquid-like composition containing a liquid crystal polyester and an aprotic solvent not containing a halogen atom, the solvent is removed, and thus, the liquid crystal polyester-impregnated fiber sheet is manufactured. As the solvent, N, N-dimethylformamide, N, N-dimethylacetamide and N-methylpyrrolidone are preferably used. As the sheet, a woven fabric is preferably used. COPYRIGHT: (C)2011,JPO&INPIT
|
