(19) United States (12) Patent Application Publication (10) Pub
US 20110124837Al (19) United States (12) Patent Application Publication (10) Pub. No.: US 2011/0124837 A1 Hong et al. (43) Pub. Date: May 26, 2011 (54) POLYMERIC VIOLET ANTHRAQUINONE (52) US. Cl. ....................................... .. 528/226; 528/220 COLORANT COMPOSITIONS AND METHODS FOR PRODUCING THE SAME (57) ABSTRACT (76) Inventors: Xiaoyong Michael Hong, Greer, This invention relates to polymeric violet anthraquinone SC (US); Robert L. Mahaffey, colorants having at least one poly(oxyalkylene) chain Spartanburg, SC (U S) attached to an anthraquinone structure. Such colorants exhibit bright violet shade, excellent compatibility With organic (21) Appl. No.: 12/624,646 media or aqueous systems, good lightfastness, and excellent thermal stability. The Water soluble poly(oxyalkylene) sub (22) Filed: Nov. 24, 2009 stituted polymeric violet anthraquinone colorants also pos sess high Water solubility, high color strength, non-staining Publication Classi?cation properties, and high pH stability. The processes and methods (51) Int. Cl. for making such polymeric violet anthraquinone colorants C08G 16/00 (2006.01) and their use for coloring consumer products are also pro C08G 75/00 (2006.01) vided. US 2011/0124837 A1 May 26, 2011 POLYMERIC VIOLET ANTHRAQUINONE creams or pastes. Similar to the acid dyes described above, COLORANT COMPOSITIONS AND these compositions cause staining to the substances to Which METHODS FOR PRODUCING THE SAME they are applied. In this instance, it is desirable to use staining anthraquinone colorants for dyeing human hair. Thus, the FIELD OF THE INVENTION colorants taught by Kaiser et al. are not polymeric in nature, and they are not non-staining. Additionally, the colorants [0001] This invention relates to compositions of polymeric taught by Kaiser et al.
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