Method for the production of a copolymer based on vinyl aromatic compounds and conjugated dienes

The present invention provides a method for the production of a copolymer based on vinyl aromatic compounds and conjugated dienes, in which after polymerization, the copolymers are treated with multi-functional sulfur halides in the presence of a catalyst at temperatures in the range from 20 to 130°...

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Bibliographische Detailangaben
Hauptverfasser: MARWEDE GUENTER, BRANDT HEINZ-DIETER, GIEBELER ELLEN, ENGEHAUSEN RUEDIGER
Format: Patent
Sprache:eng
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Zusammenfassung:The present invention provides a method for the production of a copolymer based on vinyl aromatic compounds and conjugated dienes, in which after polymerization, the copolymers are treated with multi-functional sulfur halides in the presence of a catalyst at temperatures in the range from 20 to 130° C.The copolymers produced according to the present invention demonstrate clearly improved processing characteristics as a result of selective masticating effect and good mechanical properties.