Monoazo pigment preparations based on C.I. Pigment Yellow 74

US7419541B2 · kind B2 · utility

Assignee

• Lariant Produkte (Deutshland) GmbH · DE

Inventors

• Felix Grimm · Königsee, DE
• Bernd Nestler · Jena, DE
• Joerg Schueller · Zeven, DE
• Wojciech Nieradzik · Bad Sobernheim, DE
• Werner Sindermann · Gerstungen, DE
• Joachim Weber · Frankfurt am Main, DE
• Ruediger Jung · Kelkheim, DE

Key dates

• Filing date: Dec 8, 2004
• Grant date: Sep 2, 2008
• Expiry date: Dec 8, 2024

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D11/326
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A pigment preparation comprising C.I. Pigment Yellow 74 of formula (I) as base pigment and C.I. Pigment Yellow 62 of formula (II) as pigment dispersant.