| 摘要 |
PURPOSE:To improve the adhesion of a thermotropic liq. crystalline polyester to an epoxy resin without detriment to the excellent mechanical properties and heat resistance inherent in the polyester by compounding it with a polyalkylene ether compd. CONSTITUTION:A liq. crystalline polyester compsn. comprising 80-99wt.% thermotropic liq. crystalline polyester and 20-1wt.% polyalkylene ether compd. is provided. The polyester comprises a copolymer consisting of structural units of formulas I, II, III, and IV (wherein R1 is a group of formula V or VI; and R2 is a group of formula VII or VIII). Although the contents of structural units of formulas I, II, III, and IV are not specified, molar rations of [(I)+(II)]/[(I)+(II)+(III)], (I)/(II), and (IV)/[(II)+(III)] are pref. 0.5-0.95, (75: 25) to (95:5), and 50:50, respectively, from the viewpoint of flowability and heat resistance. |
