Block copolymers and method for making same

The present invention is a novel block copolymer containing a controlled distribution copolymer block of a conjugated diene and a mono alkenyl arene, where the controlled distribution copolymer block has terminal regions that are rich in conjugated diene units and a center region that is rich in mon...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HANDLIN, JR. DALE L, BENING ROBERT C, WILLIS CARL L, STERNA LARRY L
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present invention is a novel block copolymer containing a controlled distribution copolymer block of a conjugated diene and a mono alkenyl arene, where the controlled distribution copolymer block has terminal regions that are rich in conjugated diene units and a center region that is rich in mono alkenyl arene units. Also disclosed is a method for manufacture of the block copolymer.