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    • 1. 发明申请
    • COLORANT HAVING ISOCYANATE SUBSTITUENT
    • 具有异氰酸酯取代基的颜料
    • WO99042428A1
    • 1999-08-26
    • PCT/US1999/001608
    • 1999-01-26
    • C08G18/10C08G18/38C09B69/00C09D11/00D06P1/00D06P1/02D06P1/13D06P1/14D06P1/39D06P5/30C07C45/27C07C50/18C07D215/00C07D219/00C07D277/04C07D277/08C07D279/00C07D311/82C09B11/04C09B29/09C09B29/22C09B29/36C09B56/00D06P5/04
    • D06P5/30C08G18/10C08G18/38C09B69/00C09D11/32D06P1/0052D06P1/02D06P1/13D06P1/14D06P1/39
    • A novel colorant compound is provided which is the addition product of an organic chromophore having at least one reactive hydroxyl or amine substituent, a polyisocyanate, and a carboxylic acid, sulfonic acid, or salt of either thereof. The polyisocyanate, added in a molar excess relative to the number of such reactive substituents, reacts with the reactive hydroxyl or amine groups to provide terminal isocyanate groups. Subsequently, the carboxylic acid or salt thereof, also added in an amount excessive in relation to the number of terminal isocyanate groups, reacts therewith to form urethane moieties on the colorant. Such a compound provides excellent ink compositions upon dilution and are very soluble within all the standard ink diluents. Furthermore, such colorants provide good jettability, waterfastness, washfastness, and the like, within ink-jet applications on various types of printing substrates. A method for producing such a colorant and specifically printed substrates colored therewith is also provided.
    • 提供了一种新颖的着色剂化合物,其是具有至少一个反应性羟基或胺取代基的有机发色团,多异氰酸酯,以及其任意一种的羧酸,磺酸或其盐的加成产物。 相对于这种反应性取代基的数目,摩尔过量加入的多异氰酸酯与反应性羟基或胺基反应以提供末端异氰酸酯基团。 随后,相对于末端异氰酸酯基团的数量而加入过量的羧酸或其盐也与着色剂反应形成氨基甲酸酯部分。 这种化合物在稀释时提供优异的油墨组合物,并且在所有标准油墨稀释剂中都非常可溶。 此外,这种着色剂在各种类型的印刷基材上的喷墨应用中提供良好的可喷射性,耐水性,耐洗涤性等。 还提供了制备这种着色剂的方法以及用其着色的具体印刷基板。