RO91517B1 - Pocedeu de preparare a unui colorant brun, direct, nebenzidinic - Google Patents

Pocedeu de preparare a unui colorant brun, direct, nebenzidinic

Info

Publication number
RO91517B1
RO91517B1 RO117742A RO11774285A RO91517B1 RO 91517 B1 RO91517 B1 RO 91517B1 RO 117742 A RO117742 A RO 117742A RO 11774285 A RO11774285 A RO 11774285A RO 91517 B1 RO91517 B1 RO 91517B1
Authority
RO
Romania
Prior art keywords
nonbenzidine
preparing
colouring agent
direct brown
brown colouring
Prior art date
Application number
RO117742A
Other languages
English (en)
Other versions
RO91517A2 (ro
Inventor
Iaroslav Havlik
Walter Schmidt
Dorin Gageonea
Dionisie Dina
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 RO117742A priority Critical patent/RO91517B1/ro
Publication of RO91517A2 publication Critical patent/RO91517A2/ro
Publication of RO91517B1 publication Critical patent/RO91517B1/ro

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  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Coloring (AREA)

Abstract

Inventia se refera la un procedeu de preparare a unui colorant brun, direct, nebenzidinic, pentru vopsirea rezistenta a fibrelor celulozice, prin bis-diazotarea si cuplarea asimetrica a 4,4'-diamino-3,3'-dimetoxidifenilului (o-dianisidinei), evitîndfolosirea benzidinei, produs toxic si cancerigen.
RO117742A 1985-02-23 1985-02-23 Pocedeu de preparare a unui colorant brun, direct, nebenzidinic RO91517B1 (ro)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO117742A RO91517B1 (ro) 1985-02-23 1985-02-23 Pocedeu de preparare a unui colorant brun, direct, nebenzidinic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO117742A RO91517B1 (ro) 1985-02-23 1985-02-23 Pocedeu de preparare a unui colorant brun, direct, nebenzidinic

Publications (2)

Publication Number Publication Date
RO91517A2 RO91517A2 (ro) 1987-04-30
RO91517B1 true RO91517B1 (ro) 1987-05-01

Family

ID=20116625

Family Applications (1)

Application Number Title Priority Date Filing Date
RO117742A RO91517B1 (ro) 1985-02-23 1985-02-23 Pocedeu de preparare a unui colorant brun, direct, nebenzidinic

Country Status (1)

Country Link
RO (1) RO91517B1 (ro)

Also Published As

Publication number Publication date
RO91517A2 (ro) 1987-04-30

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