Process for the preparation of coated phosphors

US8519609B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Holger Winkler · Darmstadt, DE
• Ralf Petry · Griesheim, DE
• Reinhold Rueger · Wittenberg, DE
• Tim Vosgroene · Ober-Ramstadt, DE

Key dates

• Filing date: Oct 11, 2008
• Grant date: Aug 27, 2013
• Expiry date: Feb 3, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2993
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to coated phosphor particles comprising luminescent particles and a, preferably substantially transparent, metal, transition-metal or semimetal oxide coating, and to a process for the production thereof.