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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| creator | UENO RYUZO,KITAYAMA MASAYA,KATO HIROYUKI,TERADA HIROAKI,ASAHARA MOTOKI |
| description | 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. |
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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.</description><language>eng</language><subject>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</subject><creationdate>2007</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20070103&DB=EPODOC&CC=CN&NR=1890289A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20070103&DB=EPODOC&CC=CN&NR=1890289A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>UENO RYUZO,KITAYAMA MASAYA,KATO HIROYUKI,TERADA HIROAKI,ASAHARA MOTOKI</creatorcontrib><title>Liquid-crystal polyester resin</title><description>The present invention provides a liquid-crystalline polyester resin, essentially consisting of the repeating units represented by formulae [I]-[IV]:
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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.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | 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 |
| title | Liquid-crystal polyester resin |
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