ACRYLONITRILE POLYMER

PROBLEM TO BE SOLVED: To provide an acrylonitrile polymer having stabilized thermal oxidation reactivity and suitable as a raw material for a carbonaceous material such as carbon fiber. SOLUTION: The acrylonitrile polymer satisfies the formula: x=0.08 to 0.6 and formula (1) wherein (x) is defined by...

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Bibliographische Detailangaben
Hauptverfasser:	HAMADA MITSUO, KAKITA HIDETO
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY NATURAL OR ARTIFICIAL THREADS OR FIBRES ORGANIC MACROMOLECULAR COMPOUNDS SPINNING TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an acrylonitrile polymer having stabilized thermal oxidation reactivity and suitable as a raw material for a carbonaceous material such as carbon fiber. SOLUTION: The acrylonitrile polymer satisfies the formula: x=0.08 to 0.6 and formula (1) wherein (x) is defined by Da/(Da+Db) (Da is the infrared absorbvance caused by the C-O double bond of carboxy group and measured by KBr tablet method and Db is the infrared absorbance caused by C-N triple bond of cyano group) and (y) is the reciprocal of tp (min) (1/tp) defined by the time to develop the exothermic peak on the isothermal heat-generation curve measured in an air stream of 100 mL/min at 230 deg.C by a heat-flux differential scanning calorimeter.