发明授权
- 专利标题： Multilayer cholesteric pigments
- 专利标题（中）： 多层胆固醇颜料
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申请号： US09486694申请日： 2000-03-02
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公开(公告)号： US06582781B1公开(公告)日： 2003-06-24
- 发明人: Peter Schuhmacher , Norbert Schneider , Volker Richter , Harald Keller , Günter Bettinger , Peter Blaschka , Peter Heilmann , Frank Meyer , Wolfgang Best
- 申请人： Peter Schuhmacher , Norbert Schneider , Volker Richter , Harald Keller , Günter Bettinger , Peter Blaschka , Peter Heilmann , Frank Meyer , Wolfgang Best
- 优先权： DE19738368 19970902; DE19757699 19971223
- 主分类号： C09K1900
- IPC分类号： C09K1900
摘要：
A platelet-shaped cholesteric multilayer pigment which comprises the layer sequence A1/B/A2 where A1 and A2 are identical or different and each comprise at least one cholesteric layer, and B is at least one interlayer which separates the layers A1 and A2 from one another and which absorbs all or some of the light transmitted by the layers A1 and A2, processes for its preparation, and its use are all described.
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