Polymeric acetoacetanilide azo colorants

• Main Authors: Xia, Jusong, Stephens, Eric B, Mason, Mary G, Miley, John W, Starks, Leonard J, Stephenson, Eugene K
• Format: Patent
• Language: English
• Published: 23.12.2003

This invention relates to colorants comprising a chromophore having a single azo acetoacetanilide moiety, wherein said moiety comprises at least one poly(oxyalkylene) chain. Such colorants exhibit excellent base stability and lightfastness, particularly when incorporated within certain media and/or...