公开(公告)号：US4472307A

公开(公告)日：1984-09-18

申请号：US410138

申请日：1982-08-20

申请人： Ulrich Buhler ,  Wolfgang Bodenstedt ,  Heinz Hanel ,  Eberhardt Hebestreit ,  Horst Tappe

发明人： Ulrich Buhler ,  Wolfgang Bodenstedt ,  Heinz Hanel ,  Eberhardt Hebestreit ,  Horst Tappe

IPC分类号： C09B29/40 ,  C09B41/00 ,  C09B29/01

CPC分类号： C09B29/3608 ,  C09B41/002

摘要： An improved process for the preparation of azo dyestuffs of the formula ##STR1## comprising diazotizing a 2-halo-4-nitroaniline at 10.degree. to 35.degree. C. in 70 to 100 percent by weight strength acetic acid by means of nitrosylsulphuric acid, adjusting the acetic acid content of the resulting diazo solution to 60 to 85% by the addition of water, and at a temperature from 15.degree. to 45.degree. C. adding an appropriate carbazole to the diazo solution as a solid or in the form of a suspension in 60 to 100 percent strength by weight acetic acid and coupling the carbazole to the diazotized amine to produce said azo dyestuff and isolating the dyestuff.

摘要翻译： 一种改进的制备式“偶氮染料”的方法，其包括在10-35℃下在70-100重量份浓度的乙酸中通过亚硝酰基硫酸重氮化2-卤代-4-硝基苯胺，调节 所得重氮溶液的乙酸含量通过加入水至60至85％，并在15至45℃的温度下加入合适的咔唑作为固体或悬浮​​液形式的重氮溶液 在60至100重量％的乙酸中，将咔唑偶联到重氮化胺上以制备所述偶氮染料并分离染料。

公开(公告)号：US4079040A

公开(公告)日：1978-03-14

申请号：US573592

申请日：1975-04-30

申请人： Joachim Ribka ,  Otto Trosken ,  Karlfried Keller ,  Erwin Herrmann ,  Wolfgang Bodenstedt ,  Peter Dorries

发明人： Joachim Ribka ,  Otto Trosken ,  Karlfried Keller ,  Erwin Herrmann ,  Wolfgang Bodenstedt ,  Peter Dorries

IPC分类号： C04B24/22 ,  C08G8/00 ,  C08G8/20 ,  C08G8/28

CPC分类号： C04B24/22

摘要： Spreadability and/or strength of water-setting inorganic bonding compositions are improved by incorporating in them a water-soluble condensation product of formaldehyde with a diphenol ##STR1## The condensation can also take place in the presence of a water-soluble sulfite, a water-soluble sulfamate, a water-soluble pyrosulfite, a phenol sulfonic acid or a naphthalene sulfonic acid.

摘要翻译： 通过在其中加入甲醛与二酚的水溶性缩合产物来改善水定型无机粘合组合物的可扩散性和/或强度。缩合也可以在水溶性亚硫酸盐，水 可溶性氨基磺酸盐，水溶性焦亚硫酸盐，苯酚磺酸或萘磺酸。