发明名称 |
Biege-brown encapsulated pigments and method of their production |
摘要 |
Beige-brown encapsulated pigments are obtained by means of the encapsulation of iron titanates of the formula Fe2TiO5 in zirconium silicate crystals. The production takes place by calcining a mixture of zirconium oxide with a particle size distribution of </=5 mu m and specific surfaces of >/=4 m2/g, silicon dioxide and iron oxides and titanium oxides or oxide-forming Fe compounds and Ti compounds in the presence of mineralizers under oxidizing conditions at 800 DEG to 1300 DEG C.
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申请公布号 |
US5035746(A) |
申请公布日期 |
1991.07.30 |
申请号 |
US19900487148 |
申请日期 |
1990.03.02 |
申请人 |
DEGUSSA AKTIENGESELLSCHAFT |
发明人 |
SPEER, DIETRICH;KISS, AKOS;KLEINSCHMIT, PETER |
分类号 |
C01G49/00;C09C1/00;C09C1/36;C09C3/06 |
主分类号 |
C01G49/00 |
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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