发明授权
- 专利标题： Quinophthalone dyestuffs and process for preparing them
- 专利标题（中）： 喹诺酮类化合物及其制备方法
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申请号： US3655672D申请日： 1969-05-19
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公开(公告)号： US3655672A公开(公告)日： 1972-04-11
- 发明人: SPIETSCHKA ERNST , ISCHE FRIEDRICH
- 申请人： HOECHST AG
- 专利权人： Hoechst AG
- 当前专利权人： Hoechst AG
- 优先权： DE1769437 1968-05-24
- 主分类号： C09B25/00
- IPC分类号： C09B25/00 ; C07D33/38
摘要：
3-HYDROXY-QUINOPHTHALONE DYESTUFFS SUBSTITUTED IN THE 4-POSITION BY AN ETHER OR THIOETHER GROUP, AND A PROCESS FOR PREPARING THEM. SAID DYESTUFFS YIELD ON SYNTHETIC FIBROUS MATERIALS, ESPICIALLY THOSE FROM POLYEHYLENE TEREPHTHALATES, YELLOW DYEINGS HAVING GOOD FASTNESS TO LIGHT, WET PROCESSING AND SOLVENTS AND A REMARKABLY GOOD FASTNESS TO THERMOFIXATION AND IRONING.
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