Liquid-crystal polyester resin

The present invention provides a liquid-crystalline polyester resin, essentially consisting of the repeating units represented by formulae [I]-[IV]: wherein p, q, r and s satisfy the following formulae: 0.4 ¦ p/q ¦ 2.0, 2 ¦ r ¦ 15, 2 ¦ s ¦ 15, and p+q+r+s = 100, provided that the liquid-crysta...

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Bibliographische Detailangaben
1. Verfasser:	UENO RYUZO,KITAYAMA MASAYA,KATO HIROYUKI,TERADA HIROAKI,ASAHARA MOTOKI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	The present invention provides a liquid-crystalline polyester resin, essentially consisting of the repeating units represented by formulae [I]-[IV]: wherein p, q, r and s satisfy the following formulae: 0.4 ¦ p/q ¦ 2.0, 2 ¦ r ¦ 15, 2 ¦ s ¦ 15, and p+q+r+s = 100, provided that the liquid-crystalline polyester resin has a melting point of 190-250°C determined by differential scanning calorimetry. The liquid-crystalline polyester resin of the present invention exhibits a good molding processability at low temperatures and excellent mechanical properties.