Suspension polymerization of styrene monomers in the presence of carbon black

A suspension polymerization process for polymerizing a styrene-containing monomer composition in the presence of untreated carbon black to produce a polymer comprising more than 40 weight percent of styrene moiety is described. The monomer composition comprises at least one styrene monomer having a...

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Bibliographische Detailangaben
Hauptverfasser: ISAACSON, HENRY V
Format: Patent
Sprache:eng
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Zusammenfassung:A suspension polymerization process for polymerizing a styrene-containing monomer composition in the presence of untreated carbon black to produce a polymer comprising more than 40 weight percent of styrene moiety is described. The monomer composition comprises at least one styrene monomer having a substituent with a Hammett sigma value more positive than about 0.06.