发明名称 |
Process for manufacturing purple pigments. |
摘要 |
Prodn. of purple pigments based on a sinterable glass flux or other oxide or silicate carrier (mixt.) (I), coated with colloidal Au, comprises contacting fine (I) powder with Au cpd(s). (II) to give a wt. ratio of (I) to Au in (II) of (10-2000):1. (I) and (II) are mixed and/or milled dry or (I) is contacted with an aq. soln. or suspension of (II) in the absence of reducing agent. The mixt. is heated at a temp. above the decomposition temp. of (II) and below the sintering temp. of (I) until (II) is converted to colloidal Au. Also claimed is the pigment. |
申请公布号 |
EP0677558(A1) |
申请公布日期 |
1995.10.18 |
申请号 |
EP19950103939 |
申请日期 |
1995.03.17 |
申请人 |
CERDEC AKTIENGESELLSCHAFT KERAMISCHE FARBEN |
发明人 |
FRITSCHE, KLAUS-DIETER, DR.;DORBATH, BERND, DR.;GIESECKE, NORBERT;RUHNAU, KERSTIN |
分类号 |
C04B41/86;C03C1/04;C03C8/14;C09C1/00;C09C1/28;C09C3/06 |
主分类号 |
C04B41/86 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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