Azo dyes

US6297362A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Klaus Kunde · Dessau, DE
• Michael-Thomas Jorss · Kerpen, DE
• Peter Wild · Odenthal, DE

Key dates

• Filing date: Oct 1, 1999
• Grant date: Oct 2, 2001
• Expiry date: Oct 1, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D11/037
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Compound of the formula (I) ##STR1## wherein PA1 R is hydrogen or optionally substituted C.sub.1 -C.sub.6 -alkyl, PA1 R.sup.1 is hydrogen or C.sub.1 -C.sub.6 -alkyl, PA1 R.sup.2 is hydrogen, optionally substituted C.sub.1 -C.sub.6 -alkyl or optionally substituted phenyl, the ring D is optionally substituted by one or more identical or different substituents selected from the group consisting of C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy, halogen, especially F, Cl and Br, and SO.sub.3 H, PA1 m is 0 or 1, PA1 n is 1, 2 or 3 and as a function of n PA1 X is a mono-, di- or trivalent acyl radical, pyrimidine or 1,3,5-triazine radical which is not fiber-reactive.