HEAT-RESISTANT POLYESTER MOLDING AND ITS PRODUCTION

PURPOSE: To obtain a heat-resistant polyester molding which hardly undergoes a long-term change in physical properties and is excellent in mechanical strengths, shape retention, transparency, etc. CONSTITUTION: This polyester molding is obtained from a composition comprising a major amount of an aro...

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Bibliographische Detailangaben
Hauptverfasser:	HAYASHI YOSHIHIRO, KAWAMOTO HITOSHI, ITOU YUMI, NAITO HIROSHI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	PURPOSE: To obtain a heat-resistant polyester molding which hardly undergoes a long-term change in physical properties and is excellent in mechanical strengths, shape retention, transparency, etc. CONSTITUTION: This polyester molding is obtained from a composition comprising a major amount of an aromatic dicarboxylic acid (esterifiable derivative), 1-20mol%, based on the total dicarboxylic acid, alicyclic dicarboxylic acid (esterifiable derivative), 1-15mol%, based on the total diol component, dihydroxy compound represented by the formula (wherein R1 is 2-4C alkyl; and R2 , R3 , R4 and R5 are each H or 1-4C alkyl) and at least 85mol%, based on the total diol component, ethylene-glycol-containing aliphatic diol and/or esterifiable derivative thereof.