| 摘要 |
Provided is a liquid crystalline polyester which has a specifically high fluidity ,a low anisotropy ,a high toughness, a low gas property, an excellent heat resistance and a high dielectric breakdown resistance. A liquid crystalline polyester comprising 38 to 74 mol% of structural unit(s) obtained from a hydroxycarboxylic acid, 31 to 13 mol% of a structural unit obtained from 4,4'-dihydroxybiphenyl and 31 to 13 mol% of a structural unit obtained from 2,6-naphthalenedicarboxylic acid (100 mol% in total), characterized in that the hydroxycarboxylic acid structural units comprise a structural unit obtained from 2-hydroxy-6-naphthoic acid in an amount of 89 mol% or more and the average sequence length of the structural unit obtained from 2-hydroxy-6-naphthoic acid is 0.1 to 1. |
