| 发明名称 |
PIGMENTO NACARADO RESISTENTE A AGUA E PROCESSO PARA PRODUZIR O MESMO |
| 摘要 |
<p>Water-resistant nacreous pigments are prepared by a process which comprises hydrolyzing a zirconyl compound in an aqueous medium in the presence of a hypophosphite, thereby forming hydrated zirconium oxide and depositing it onto the surface of the base pigment of metal oxide-coated mica flakes.</p> |
| 申请公布号 |
BR8706283(A) |
申请公布日期 |
1988.06.28 |
| 申请号 |
BR19878706283 |
申请日期 |
1987.11.20 |
| 申请人 |
MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG |
发明人 |
KATSUHISA NITTA;TAKAJI WATANABE;ISAO SUZUKI |
| 分类号 |
C09C1/40;C09C1/00;(IPC1-7):C09C1/28;C09D5/36;C09C3/06 |
主分类号 |
C09C1/40 |
| 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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