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专利名称：Process for preparing nacreous pigments
with improved gloss
发明人：BERNHARD, HORST, DR.,ESSELBORN,
REINER, DR.
申请号：EP83102593.7申请日：19830316公开号：EP0090260B1公开日：19851002
摘要：perlglanzpigmente based on metal oxides coated glimmerschuppen areproduced by mica in aqueous suspension with a titandioxidaquatschicht shows and thenwashed, dried and calcined, whereby the procedure as a two-stage procedure isperformed.beginning with a titandioxidaquatschicht together with silicon and aluminiumhydroxide as a single layer aufgef\ällt, the resulting pigment after washing, dryingand annealing in a titansulfathaltigen solution by slow heating of the suspension,suspension, and once again b eschichtet.
申请人：MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
地址：Postfach, Frankfurter Strasse 250 D-271 Darmstadt DE
国籍：DE
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