发明名称 |
Pigmented porous material |
摘要 |
The present invention relates to a colored, preferably natural porous material comprising in its pores an effectively coloring amount of an organic pigment which is obtained by fragmenting a meltable or solvent-soluble pigment precursor in the presence of a thermally activated acid precursor, and to a low to medium temperature process for its preparation.
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申请公布号 |
US6495250(B1) |
申请公布日期 |
2002.12.17 |
申请号 |
US19990441404 |
申请日期 |
1999.11.16 |
申请人 |
CIBA SPECIALTY CHEMICALS CORPORATION |
发明人 |
SCHACHT HANS-THOMAS;MOEGLE GILBERT |
分类号 |
C09B47/24;C09B47/26;C09D7/00;C09D11/00;G03F7/00;G03F7/029;(IPC1-7):B23B3/26 |
主分类号 |
C09B47/24 |
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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