发明名称 |
CARBON BLACK CONTAINING PIGMENTS |
摘要 |
The invention relates to pigments containing carbon black and having improved resistance to abrasion, obtainable by coating substrates which are mixed as an aqueous suspension with a carbon black dispersion, an aqueous solution of at least one metal salt being metered into the aqueous mixture of substrate and carbon black and, if appropriate, a metal hydroxide layer free of carbon black being deposited on the substrate, characterised in that the product is ignited at 700 DEG -900 DEG C with the exclusion of oxygen after separation and, if appropriate, subsequent washing and drying. |
申请公布号 |
EP0499864(A3) |
申请公布日期 |
1992.11.04 |
申请号 |
EP19920101678 |
申请日期 |
1992.02.01 |
申请人 |
MERCK PATENT GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG |
发明人 |
PRENGEL, CONSTANZE, DR.;BERNHARDT, KLAUS |
分类号 |
C09C1/56;A61K8/18;A61Q1/02;C09B67/08;C09C1/00;C09C1/40;C09C3/06;(IPC1-7):C09C1/00 |
主分类号 |
C09C1/56 |
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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