CONJUGATED DIENE COPOLYMER AND METHOD FOR MANUFACTURING CONJUGATED DIENE COPOLYMER

A conjugated diene copolymer has a covalent bond reversibly dissociated and added by heat, and has at least two peaks in each of curves of molecular weight distributions measured at 40° C. and 60° C. by gel permeation chromatography, wherein a change rate of the proportion of the area of the peak ha...

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Hauptverfasser:	RODRIGUEZ CASTANON, Jesus, AOSHIMA, Hiroshi, HAMA, Hisakatsu
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Zusammenfassung:	A conjugated diene copolymer has a covalent bond reversibly dissociated and added by heat, and has at least two peaks in each of curves of molecular weight distributions measured at 40° C. and 60° C. by gel permeation chromatography, wherein a change rate of the proportion of the area of the peak having the lowest molecular weight in measurement at 60° C. to the proportion of the area of the peak having the lowest molecular weight in measurement at 40° C.