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专利名称：A process for the preparation of brominated
products of polystyrene
发明人：KAINMULLER, THOMAS, DR.,BUXBAUM,
LOTHAR, DR.
申请号：EP80810143.0申请日：19800430公开号：EP0020294B1公开日：19821110
摘要：1. A process for the manufacture of brominated products of polystyrene, saidproducts containing at least 50% by weight of bromine, by direct bromination of
polystyrene obtained by radically initiated polymerisation, in solution and in the presenceof a Lewis acid catalyst at low temperature, which process comprises carrying out thebromination in a partially halogenated hydrocarbon as solvent, in the presence of adivalent and/or trivalent iron salt or oxide as catalyst, in the temperature range from -30degrees C to +30 degrees C.
申请人：CIBA-GEIGY AG
地址：Klybeckstrasse 141 4002 Basel CH
国籍：CH
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