申请人:——
公开号:US20040074021A1
公开(公告)日:2004-04-22
The invention relates to an optical brightener mixture (W) comprising optical brighteners (A) of formula (Ia), and (B) of formula (Ib) and optionally (C) of formula (Ic) as defined herein, their concentrated aqueous solutions (S), their production and their use.
本发明涉及一种光学增白剂混合物(W),包括公式(Ia)的光学增白剂(A)、公式(Ib)的光学增白剂(B)和可选的公式(Ic)的光学增白剂(C),以及它们的浓缩水溶液(S)、生产方法和用途。