申请人:Ciba-Geigy Corporation
公开号:US05656760A1
公开(公告)日:1997-08-12
The present invention provides a compound having the formula: ##STR1## in which M is hydrogen, sodium, potassium, calcium, magnesium, ammonium, mono-, di-, tri- or tetra-C.sub.1 -C.sub.4 alkylammonium, mono-, di- or tri-C.sub.1 -C.sub.4 hydroxyalkylammonium or ammonium that is di- or tri-substituted by a mixture of C.sub.1 -C.sub.4 alkyl and C.sub.1 -C.sub.4 hydroxyalkyl groups; R.sub.1 is a group having the formula: ##STR2## in which M has its previous significance and n is 1 or 2; and R.sub.2 is O--C.sub.1 -C.sub.12 alkyl or N(R.sub.3)(R.sub.4) in which R.sub.3 and R.sub.4, independently, are hydrogen, C.sub.1 -C.sub.12 alkyl or C.sub.1 -C.sub.4 hydroxyalkyl, or R.sub.3 and R.sub.4, together with the nitrogen atom, are the atoms required to form a pyrrolidine, piperidine or morpholine group. The compounds of formula (1) are particularly useful as fluorescent whitening agents for cotton in discontinuous processes, in the course of which an acidic treatment, especially a finishing treatment using a polymer resin, occurs.
本发明提供了一种具有以下式子的化合物:##STR1## 其中M为氢,钠,钾,钙,镁,铵,单,二,三或四个C.sub.1-C.sub.4烷基铵,单,二或三个C.sub.1-C.sub.4羟基烷基铵或被C.sub.1-C.sub.4烷基和C.sub.1-C.sub.4羟基基团混合取代的二或三取代铵;R.sub.1是具有以下式子的基团:##STR2## 其中M具有其先前的意义,n为1或2;R.sub.2为O--C.sub.1-C.sub.12烷基或N(R.sub.3)(R.sub.4),其中R.sub.3和R.sub.4独立地为氢,C.sub.1-C.sub.12烷基或C.sub.1-C.sub.4羟基烷基,或R.sub.3和R.sub.4与氮原子一起形成吡咯烷,哌嗪或吗啉基团所需的原子。式(1)的化合物在间歇过程中特别适用于棉花的荧光增白剂,在该过程中发生酸性处理,特别是使用聚合物树脂的整理处理。