Preparation of brilliant, transparent pigmentary bromo-isoviolanthrone
of high tinctorial strength
    51.
    发明授权
    Preparation of brilliant, transparent pigmentary bromo-isoviolanthrone of high tinctorial strength 失效
    具有高着色强度的辉煌透明色素溴 - 异戊醇的制备

    公开(公告)号:US4298534A

    公开(公告)日:1981-11-03

    申请号:US127148

    申请日:1980-03-04

    IPC分类号: C09B3/30 C09B3/22 C09B67/00

    CPC分类号: C09B67/0001 C09B3/22

    摘要: A process for the preparation of pigmentary forms of bromoisoviolanthrone, wherein the leuco compound is oxidized in an aqueous alkaline medium, in the presence of a surfactant, at from 10.degree. to 100.degree. C., with exposure to shearing forces.The pigment obtained gives full-shade colorations which are very transparent and very brilliant, while in white reductions very deep colorations are obtained.

    摘要翻译: 一种用于制备颜料形式的溴异戊烷的方法,其中在表面活性剂存在下,在暴露于剪切力的情况下,在碱性介质中,无色化合物在10-100℃下被氧化。 获得的颜料得到非常透明和非常亮的全色调色,而在白色减少中获得非常深的着色。