公开(公告)号：US10787769B2

公开(公告)日：2020-09-29

申请号：US16099331

申请日：2017-05-17

Applicant: BLANKOPHOR GMBH & CO. KG

Inventor： Marco Hafermann ,  Bernd Hauschel ,  Bernhard Hunke ,  Theo Lansing ,  Michael Kraemer ,  Robert Peekhaus

IPC: D21H21/30 ,  D21H21/28 ,  D21H17/07 ,  D21H17/09 ,  C09B23/14 ,  C07D251/70 ,  D21H19/44 ,  D21H23/56

Abstract: Novel fluorescent whitening agents, compositions or mixtures thereof with known fluorescent whitening agents, their preparation, and their use. The novel fluorescent whitening agents (FWAs) contain three structural subunits derived from 4,4′-diamino-2,2′-stilbenedisulfonic acid. The novel compounds and their mixtures with known FWAs show very good effectiveness as fluorescent whitening agents for cellulosic materials, in particular for paper.

公开(公告)号：US20160060814A1

公开(公告)日：2016-03-03

申请号：US14786359

申请日：2014-04-28

Applicant: BLANKOPHOR GMBH & CO., KG

Inventor： Bernd HAUSCHEL ,  Bernhard Hunke ,  Michael Kraemer ,  Gunter Klug

IPC: D21H21/30 ,  D21H17/00 ,  D21H17/25 ,  D21H19/34

CPC classification number: D21H21/30 ,  C07D251/54 ,  C09K11/07 ,  D21H17/25 ,  D21H17/72 ,  D21H19/34

Abstract: A combination of micronized cellulose and fluorescent whitening agents for surface treatment of cellulosic sheet-formed materials, e.g. paper, board or cotton fabric, and to preparations including the micronized cellulose and the fluorescent whitening agents. The combination enables improved fluorescent whitening and optical brightening of the cellulosic materials.

Abstract translation: 用于表面处理纤维素片状材料的微粉化纤维素和荧光增白剂的组合，例如， 纸，板或棉织物，以及包括微粉化纤维素和荧光增白剂的制剂。 该组合可以改善纤维素材料的荧光增白和光学增白。

公开(公告)号：US20190194871A1

公开(公告)日：2019-06-27

申请号：US16099331

申请日：2017-05-17

Applicant: BLANKOPHOR GMBH & CO. KG

Inventor： Marco Hafermann ,  Bernd Hauschel ,  Bernhard Hunke ,  Theo Lansing ,  Michael Kraemer ,  Robert Peekhaus

IPC: D21H21/30 ,  D21H21/28

CPC classification number: D21H21/30 ,  C07D251/70 ,  C09B23/148 ,  D21H17/07 ,  D21H17/09 ,  D21H19/44 ,  D21H21/28 ,  D21H23/56

Abstract: The invention relates to novel fluorescent whitening agents, compositions or mixtures thereof with known fluorescent whitening agents, their preparation, and their use. The novel fluorescent whitening agents contain three structural subunits derived from 4,4′-diamino-2,2′-stilbenedisulfonic acid. The novel compounds and their mixtures with known FWAs show very good effectiveness as fluorescent whitening agents for cellulosic materials, in particular for paper.