发明名称 |
METHOD FOR THE PRODUCTION OF A COLOR SAND COMPOSITION, AND COMPOSITION THEREOF |
摘要 |
<p>Production of colored sand composition containing numerous quartz sand grains with colored pigment coating involves mixing aqueous sodium hydroxide (NaOH) solution and water in predetermined ratio; mixing with boric acid in predetermined concentration; mixing binder and boric acid-NaOH solution in predetermined ratio; adding coating mixture to pigment-coated grains; and indirect heating in closed system with separate heating and heat-source chambers. An independent claim is also included for the colored sand composition per se.</p> |
申请公布号 |
EP1658247(A2) |
申请公布日期 |
2006.05.24 |
申请号 |
EP20040763541 |
申请日期 |
2004.07.28 |
申请人 |
BENE-FIT GMBH |
发明人 |
KRAEUTER, REINHARD;FLIERL, MICHAEL |
分类号 |
C09B63/00;C09C1/30;(IPC1-7):C04B20/10;C04B14/06;C04B22/06 |
主分类号 |
C09B63/00 |
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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