Organic pigments derived from coumarin
    1.
    发明授权
    Organic pigments derived from coumarin 失效
    来自香豆素的有机颜料

    公开(公告)号:US4240967A

    公开(公告)日:1980-12-23

    申请号:US65863

    申请日:1979-08-13

    摘要: This application is directed to compounds which are useful as pigments. The compounds are represented by the formula: ##STR1## where R.sub.1 is hydrogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, chlorine or bromine;R.sub.2 is hydrogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, chlorine, bromine and nitro; and ##STR2## where R.sub.4 and R.sub.5 are hydrogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, chlorine or bromine.

    摘要翻译: 本申请涉及可用作颜料的化合物。 化合物由下式表示:其中R 1为氢,1至4个碳原子的烷基,1至4个碳原子的烷氧基,氯或溴; R2是氢,1-4个碳原子的烷基,1-4个碳原子的烷氧基,氯,溴和硝基; 和< IMAGE>其中R4和R5是氢,1至4个碳原子的烷基,1至4个碳原子的烷氧基,氯或溴。