Adolf K aser Bottmingen CH

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Adolf K aser -
City: Bottmingen State/Country: CH	Email and Contact Information

Adolf K aser ( Bottmingen, CH )

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Adolf K aser ( Bottmingen, CH )

US5559217 - Disazo dyes and a process of dyeing paper therewith - 09/24/1996

The dyestuffs of the formula ##STR1## in which A, R.sub.1, M and n are as defined in claim 1, are suitable for dyeing paper with good light-fastness.

US5554738 - Acyl-aryl disazo having a 6-ureido-1-hydroxy-naphthalene-3-sulfonic acid coupling component - 09/10/1996

Anionic disazo dyes useful for dyeing and printing textile materials, paper and leather and for the preparation of inks of the formula ##STR1## wherein D, R.sup.3, R.sup.4, M, R.sup.5 and R.sup.7 are defined as in the specification.

US5545725 - Disazo dyes consisting of two monoazo dyes contaning a 1-phenyl-5-amino pyrazole coupling component and connected by a bridge member - 08/13/1996

Disazo dyes are disclosed which are particularly suitable for dyeing paper. Paper is dyed with these dyes in greenish-yellow or yellow to red shades of good fastness properties.