Black perylene pigments

US7416601B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Peter Erk · Bischofswerda, DE
• Andreas Stohr · Freinsheim, DE
• Arno Boehm · Mannheim, DE
• Walter Kurtz · Bad Dürkheim, DE
• Jin Mizuguchi · Fribourg, CH
• Benno Sens · Neustadt, DE

Key dates

• Filing date: Feb 4, 2005
• Grant date: Aug 26, 2008
• Expiry date: Mar 26, 2025

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B67/0034
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Black perylene pigments which comprise one of the isomers of the formula Ia or Ibin which