Pigment preparation in granulate form

US7365109B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Thomas Rathschlag · Weilburg, DE
• Sabine Schoen · Darmstadt, DE

Key dates

• Filing date: Sep 7, 2001
• Grant date: Apr 29, 2008
• Expiry date: Nov 25, 2022

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K2800/436
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention relates to pigment preparations in granulate form, containing one or more resins, one or more effect pigments and optionally, additives. The granulates are characterized in that they contain 3 to 10 wt. % water or a, solvent or solvent mixture with a vapor pressure of 0.001 to 40 hPa at 20° C.