RO93295B1 - Procedeu de obtinere a unor coloranti directi nebenzidinici albastri - Google Patents

Procedeu de obtinere a unor coloranti directi nebenzidinici albastri

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Publication number
RO93295B1
RO93295B1 RO121314A RO12131485A RO93295B1 RO 93295 B1 RO93295 B1 RO 93295B1 RO 121314 A RO121314 A RO 121314A RO 12131485 A RO12131485 A RO 12131485A RO 93295 B1 RO93295 B1 RO 93295B1
Authority
RO
Romania
Prior art keywords
benzidinic
prepring
colouring agents
blue direct
coupling
Prior art date
Application number
RO121314A
Other languages
English (en)
Other versions
RO93295A2 (ro
Inventor
Iaroslav-Vaclav-Aurel Havlik
Dorin Gageonea
Original Assignee
Centrul De Chimie
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 Centrul De Chimie filed Critical Centrul De Chimie
Priority to RO121314A priority Critical patent/RO93295B1/ro
Publication of RO93295A2 publication Critical patent/RO93295A2/ro
Publication of RO93295B1 publication Critical patent/RO93295B1/ro

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Abstract

Inventia se refera la un procedeu de obtinere a unor coloranti directi nebenzidinici, albastri, pentru fibre celulozice si poliamidice, cu formula generala I: (vezi formula) în care R reprezinta hidrogen sau o grupa SO3Na, prin cuplarea sarii de diazoniu a colorantului cu formula II: (vezi formula) cu un naftol cu formula generala III: în care R are semnificatiile de mai sus, procedeu în care reactia de cuplare se executa în prezenta unui accelerator de cuplare si a unui agent de dispersare.
RO121314A 1985-12-24 1985-12-24 Procedeu de obtinere a unor coloranti directi nebenzidinici albastri RO93295B1 (ro)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO121314A RO93295B1 (ro) 1985-12-24 1985-12-24 Procedeu de obtinere a unor coloranti directi nebenzidinici albastri

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO121314A RO93295B1 (ro) 1985-12-24 1985-12-24 Procedeu de obtinere a unor coloranti directi nebenzidinici albastri

Publications (2)

Publication Number Publication Date
RO93295A2 RO93295A2 (ro) 1987-12-31
RO93295B1 true RO93295B1 (ro) 1988-01-01

Family

ID=20118561

Family Applications (1)

Application Number Title Priority Date Filing Date
RO121314A RO93295B1 (ro) 1985-12-24 1985-12-24 Procedeu de obtinere a unor coloranti directi nebenzidinici albastri

Country Status (1)

Country Link
RO (1) RO93295B1 (ro)

Also Published As

Publication number Publication date
RO93295A2 (ro) 1987-12-31

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