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1.Water-soluble cationic quinophthalone dyestuffs and process for preparing them 失效
Title translation: 水溶性阳离子喹酞酮染料及其制备方法公开(公告)号:US3293246A
公开(公告)日:1966-12-20
申请号:US26981163
申请日:1963-04-01
Applicant: HOECHST AG
Inventor: OTTO FUCHS , FRIEDRICH ISCHE
CPC classification number: C09B69/001 , C09B25/00 , C09B44/02
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公开(公告)号:US3252964A
公开(公告)日:1966-05-24
申请号:US26979263
申请日:1963-04-01
Applicant: HOECHST AG
Inventor: OTTO FUCHS , FRIEDRICH ISCHE
CPC classification number: C09B69/001 , C09B25/00 , C09B44/02
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3.Process for preparing leuco sulfuric acid esters of vat dyestuffs 失效
Title translation: 制备无色染料无色硫酸酯的方法公开(公告)号:US3006923A
公开(公告)日:1961-10-31
申请号:US76128758
申请日:1958-09-16
Applicant: HOECHST AG
Inventor: OTTO FUCHS , FRITZ MEININGER , FRIEDRICH ISCHE
IPC: C09B9/00
CPC classification number: C09B9/00
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