METHOD FOR PRODUCING POLYETHER NITRILE

A method for producing a polyether nitrile having a high molecular weight at a practical polymerization rate is provided. The method for producing a polyether nitrile includes allowing an aromatic dihydroxy compound composition (I) and a dihalobenzonitrile compound composition (II) to undergo a poly...

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Hauptverfasser:	SHIMODA, Tomoaki, HASHIKAWA, Akihiro, NAKANO, Yasuhiro
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	A method for producing a polyether nitrile having a high molecular weight at a practical polymerization rate is provided. The method for producing a polyether nitrile includes allowing an aromatic dihydroxy compound composition (I) and a dihalobenzonitrile compound composition (II) to undergo a polycondensation reaction in the presence of a basic compound. In the method, the aromatic dihydroxy compound composition (I) includes an aromatic dihydroxy compound (I-a) and an aromatic monohydroxy compound (I-b), and contains (I-a) in an amount ranging from 99.0 to 99.995 mol% and (I-b) in an amount ranging from 1 to 0.005 mol% relative to a total amount of (I-a) and (I-b), and the dihalobenzonitrile compound composition (II) includes a dihalobenzonitrile compound (II-a) and a monohalobenzonitrile compound (II-b), and contains (II-a) in an amount ranging from 99.0 to 99.995 mol% and (II-b) in an amount ranging from 1 to 0.005 mol% relative to a total amount of (II-a) and (II-b).