BLOCK COPOLYMER HAVING EXCELLENT VIBRATION-DAMPING PROPERTIES AND HEAT RESISTANCE, AND METHOD FOR PRODUCING THE SAME

To provide a block copolymer having excellent vibration-damping properties and heat resistance, and a method for producing the same.SOLUTION: A block copolymer comprises a polymer block composed mainly of at least two aromatic vinyl monomers, and a polymer block in which at least one conjugated dien...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	YAMAMOTO SHINGO, FUJISAKI HIKARU
Format:	Patent
Sprache:	eng ; jpn
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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	To provide a block copolymer having excellent vibration-damping properties and heat resistance, and a method for producing the same.SOLUTION: A block copolymer comprises a polymer block composed mainly of at least two aromatic vinyl monomers, and a polymer block in which at least one conjugated diene monomer and an aromatic vinyl monomer are bonded randomly. The block copolymer includes a vinyl group, the content of aromatic vinyl monomers in the block copolymer is 45%-60%, the random bonding rate of the aromatic vinyl monomer in the polymer block in which the conjugated diene monomer and the aromatic vinyl monomer are bonded randomly is 70%-90%, and the vinyl group is non-hydrogenated.SELECTED DRAWING: None 【課題】制振性および耐熱性に優れたブロック共重合体及びその製造方法を提供する。【解決手段】少なくとも２個の芳香族ビニル単量体を主体とする重合体ブロックと、少なくとも１個の共役ジエン単量体と芳香族ビニル単量体がランダムに結合した重合体ブロックからなり、ビニル基を含み、ブロック共重合体中の芳香族ビニル単量体含有量が４５～６０％かつ、共役ジエン単量体と芳香族ビニル単量体がランダムに結合した重合体ブロック中の芳香族ビニル単量体のランダム結合率が７０～９０％である前記ビニル基が非水添のブロック共重合体。【選択図】なし