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公开(公告)号:US07066969B2
公开(公告)日:2006-06-27
申请号:US10484135
申请日:2002-07-11
申请人: Michael Lennartz , Dölf Käser , Sandra Weiss
发明人: Michael Lennartz , Dölf Käser , Sandra Weiss
摘要: The present invention relates to novel compounds of the formulae A, D1, D2, R1 and n are as defined in the description the compounds being in an internal or external salt form, or mixtures of compounds (1) and (2), a process for their preparation and preparations containing them used for dyeing paper.
摘要翻译: 本发明涉及新的式A,D 1,D 2,R 1和N如本说明书中所定义的化合物 化合物为内部或外部盐形式,或化合物(1)和(2)的混合物,其制备方法和含有它们用于染色纸的制剂。