Method for preparing isoindoline pigment

The invention discloses a method for preparing an isoindoline pigment, and relates to a preparation method for a pigment. The method is characterized in that a raw material formula comprises the following components by mass: 102.4 to 153.6 grams of organic acid, 10.24 grams (0.08 mol) of barbituric...

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Bibliographic Details
Main Authors CHEN ZHIWEN, CHEN DOUFANG, LV DONGJUN, ZHAN XIUTAO
Format Patent
LanguageChinese
English
Published 24.10.2012
Subjects
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Summary:The invention discloses a method for preparing an isoindoline pigment, and relates to a preparation method for a pigment. The method is characterized in that a raw material formula comprises the following components by mass: 102.4 to 153.6 grams of organic acid, 10.24 grams (0.08 mol) of barbituric acid (or derivatives thereof), 4.61 to 6.45 grams of 1,3-diiminoisoindoline, 0.10 to 0.41 gram of antioxidant, proper amount of (3 to 10 percent) alkali, 278 to 1,042.5 grams of water, and 0.15 to 1.5 grams of surfactant. The preparation method comprises the following steps: 1, pigment synthesis; 2, surfactant solution preparation; and 3, pigmentation. Compared with the traditional product, the pigment obtained by the formula and the preparation method has the advantages of good brilliance, high pigment yield and strong tinting strength; and the oxidation resistance and light resistance of the pigment in plastic application are further improved.
Bibliography:Application Number: CN20081139252