Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoechst AG
Original Assignee
Hoechst AG
Farbwerke Hoechst AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoechst AG, Farbwerke Hoechst AGfiledCriticalHoechst AG
Application grantedgrantedCritical
Publication of GB191022289ApublicationCriticalpatent/GB191022289A/en
22,289. Farbwerke vorm. Meister, Lucius, & Br³ning. Oct. 21, 1909, [Convention date]. Monoazo dyes; lakes. - A monoazo dye is obtained by combining the diazo compound of 5-nitro-2-amino-1-benzylsulphonic acid with 2:3- oxynaphthoic acid. The product is suitable for use in the manufacture of lakes.
GB191022289D1909-10-211910-09-26Manufacture of a Bluish-red Azo-dyestuff suitable for Preparing Lakes Fast to Light.
ExpiredGB191022289A
(en)