AT49566B - Process for the preparation of secondary disazo dyes. - Google Patents

Process for the preparation of secondary disazo dyes.

Info

Publication number
AT49566B
AT49566B AT49566DA AT49566B AT 49566 B AT49566 B AT 49566B AT 49566D A AT49566D A AT 49566DA AT 49566 B AT49566 B AT 49566B
Authority
AT
Austria
Prior art keywords
preparation
disazo dyes
secondary disazo
aminonaphthol
dyes
Prior art date
Application number
Other languages
German (de)
Original Assignee
Farbenfab Vorm Bayer F & Co
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 Farbenfab Vorm Bayer F & Co filed Critical Farbenfab Vorm Bayer F & Co
Application granted granted Critical
Publication of AT49566B publication Critical patent/AT49566B/en

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  • Photoreceptors In Electrophotography (AREA)

Description

  

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Claims (1)

PATENT-ANSPRUCH : Abänderung des durch das Stammpatent Nr. 43579 geschützten Verfahrens zur Darstellung von sekundären Disazofarbstoffen dadurch gekennzeichnet, dass man die sekundären Disazofarbstoffe, welch d 2. 5-Aminonaphtol-7-sulfosäure oder 2. 5-Aminonaphtol-1. 7-disulfosäure in Endstellung und in der Anfangskomponente keine Hydroxylgruppe in para-oder peri. Stellung zur Azogruppe enthalten, mit aeidylierenden Mitteln behandelt. PATENT CLAIM: Modification of the process for the preparation of secondary disazo dyes, protected by the parent patent No. 43579, characterized in that the secondary disazo dyes, which d 2. 5-aminonaphthol-7-sulfonic acid or 2. 5-aminonaphthol-1. 7-disulfonic acid in the end position and no hydroxyl group in para or peri in the initial component. Contain position to the azo group, treated with aeidylating agents.
AT49566D 1908-04-22 1910-07-15 Process for the preparation of secondary disazo dyes. AT49566B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE43579X 1908-04-22
DE49566X 1909-07-30

Publications (1)

Publication Number Publication Date
AT49566B true AT49566B (en) 1911-08-25

Family

ID=25748993

Family Applications (1)

Application Number Title Priority Date Filing Date
AT49566D AT49566B (en) 1908-04-22 1910-07-15 Process for the preparation of secondary disazo dyes.

Country Status (1)

Country Link
AT (1) AT49566B (en)

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