发明名称 |
MODIFIED COLORED PIGMENTS AND INK JET INKS CONTAINING THEM |
摘要 |
<p>A modified colored pigment is described which comprises colored pigment having attached at least one organic group. The organic group comprises a) at least one aromatic group or a C1-C12 alkyl group and b) at least one ionic group, at least one ionizable group, or a mixture of an ionic group and an ionizable group. The aromatic group or the C1-C12 alkyl group of the organic group is directly attached to the pigment and the organic group is present at a treatment level of from about 0.10 to about 4.0 micromoles/m2 of the pigment used based on nitrogen surface area of the pigment. Also described are aqueous and non-aqueous inks and coatings and ink jet ink compositions containing the modified colored pigment. A method to increase the flow of an ink is also disclosed as well as a method to improve the waterfastness of a print imaged by an ink composition. Also, other ink jet ink compositions are described which comprise an aqueous or non-aqueous vehicle and a colored pigment having attached an organic group having the formula: Ar-R1 (I) or Ar'R3R2 (II) wherein Ar is an aromatic group and Ar' is an aromatic group.</p> |
申请公布号 |
EP0904327(A1) |
申请公布日期 |
1999.03.31 |
申请号 |
EP19970928926 |
申请日期 |
1997.06.09 |
申请人 |
CABOT CORPORATION |
发明人 |
JOHNSON, JOSEPH, E.;BELMONT, JAMES, A. |
分类号 |
C09C3/08;C09C1/56;C09D11/00;(IPC1-7):C09D11/00;C09B67/00 |
主分类号 |
C09C3/08 |
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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