发明名称 |
Abrasive compound for glass hard disk platter |
摘要 |
The present invention provides an abrasive compound suitable for polishing the surface of a glass substrate for an optical disk platter or a magnetic disk platter. More specifically, the present invention provides an abrasive compound for a glass hard disk platter, characterized as comprising a stable slurry having water and, dispersed therein as an abrasive, cerium(IV) oxide particles having an average secondary particle size of 0.1 to 0.5 mum and containing CeO2 in a concentration of 0.2 to 30 wt %. Preferably, the present invention provides the above abrasive compound in which cerium amounts for 95% or more in terms of oxides of the total amount of rare earth elements in the abrasive.
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申请公布号 |
US7578862(B2) |
申请公布日期 |
2009.08.25 |
申请号 |
US20030678093 |
申请日期 |
2003.10.06 |
申请人 |
NISSAN CHEMICAL INDUSTRIES, LTD. |
发明人 |
OTA ISAO;NISHIMURA TOHRU;TANIMOTO KENJI |
分类号 |
C09K3/14;B24B37/00;C01F17/00;C03C19/00;C09G1/02 |
主分类号 |
C09K3/14 |
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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