| 摘要 |
<p>NEW MATERIAL:The compound of formula I (R<1>-R<10> are H, alkyl, halogen, alkoxy, or hydroxyalkyl). EXAMPLE:The compound of formula II. USE:Green pigment for optical filter. The coloring substrate is e.g. a thermoplastic resin such as PS, PE, PP, acrylic resin, etc., a thermosetting resin such as amino resin, phenolic resin, etc., alumina film, silica film, etc. PREPARATION:The objective compound can be produced e.g. by mixing 4,5- dinitro-1,8-dihydroxyanthraquinone, aniline and boric acid, reacting the components at 150 deg.C for 7hr, pouring the reaction liquid into methanol, separating the precipitated crystals by filtration and purifying with a column.</p> |
