发明名称 |
SINGLE-PHASE MIXED CRYSTALS OF LAKED MONOAZO DYES |
摘要 |
Novel improved single-phase mixed crystals of monoazo dyes laked with alkaline earth metal cations and ammonium cations in a molar ratio of about 1:2 having a fine particle size and substantially better fastness properties than similar known products are excellently suitable as tinctorially strong pigments. Also claimed is a process for the preparation of a single-phase mixed crystal pigment of formula wherein E is Mg, Ca or Sr, by crystallisation from an inert hydrophilic liquid in the presence of solvated catiens E<SUP>++</SUP>, NR<SUB>5</SUB>R<SUB>6</SUB>R<SUB>7</SUB>R<SUB>8</SUB><SUP>+</SUP>, x is a number from 0.33 to 0.62 and y is a number from 0.76 to 1.34, and the concentration of solvated catiens E<SUP>++</SUP> at the beginning of the crystallisation is higher than the concentration of solvated cations NR<SUB>5</SUB>R<SUB>8</SUB>R<SUB>7</SUB>R<SUB>8</SUB><SUP>+</SUP>. |
申请公布号 |
PL365025(A1) |
申请公布日期 |
2004.12.27 |
申请号 |
PL20020365025 |
申请日期 |
2002.01.15 |
申请人 |
CIBA SPECIALTY CHEMICALS HOLDING INC. |
发明人 |
BUGNON PHILIPPE;SANSONNENS CAROLINE;CHISHOLM GREIG |
分类号 |
G03G9/09;B41M5/385;B41M5/39;C08J3/22;C08K5/42;C08L101/00;C09B29/46;C09B41/00;C09B63/00;C09B67/00;C09B67/20;C09B67/22;C09B67/48;G02B5/22 |
主分类号 |
G03G9/09 |
代理机构 |
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代理人 |
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地址 |
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