Luster pigments having a pronounced glittering effect

US7387669B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Norbert Mronga · Dossenheim, DE
• Raimund Schmid · Neustadt, DE
• Oliver Seeger · Mannheim, DE

Key dates

• Filing date: Oct 23, 2004
• Grant date: Jun 17, 2008
• Expiry date: Oct 23, 2024

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09C2200/306
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Luster pigments having pronounced sparkle which are based on aluminum platelets which have been coated with iron oxide and have in the precoated state an average platelet size from 8 to 30 μm, an average platelet thickness from 300 to 600 nm and an aspect ratio from 15 to 70.