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专利名称：Modified beta-quinacridone pigment发明人：JAFFE, EDWARD E.申请号：EP88810557.4申请日：19880816公开号：EP0305328A3公开日：19910123
摘要：A new beta quinacridone polytype having a magenta color and a distinct X-raydiffraction pattern, said new form preferably having an average particle size of about 0.2-0.8 &mgr;m and being prepared by various wet milling or reflux procedures in alcohol-base systems.
申请人：CIBA-GEIGY AG
地址：Klybeckstrasse 141 CH-4002 Basel CH
国籍：CH
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