The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 12, 2014
Filed:
Oct. 29, 2008
Ralf Petry, Griesheim, DE;
Reinhold Rueger, Roedermark, DE;
Tim Vosgroene, Ober-Ramstadt, DE;
Holger Winkler, Darmstadt, DE;
Ralf Petry, Griesheim, DE;
Reinhold Rueger, Roedermark, DE;
Tim Vosgroene, Ober-Ramstadt, DE;
Holger Winkler, Darmstadt, DE;
Merck Patent GmbH, Darmstadt, DE;
Abstract
The invention relates to surface-modified phosphor particles based on luminescent particles which comprise at least one luminescent compound, where (Ca,Sr,Ba)SiOand other silicates having one or more activator ions, such as Eu, Ce and Mn, are excluded as luminescent compounds, and where at least one inorganic layer comprising oxides/hydroxides of Si, Al, Zr, Zn, Ti and/or mixtures thereof and an organic coating of organosilanes or polyorganosiloxanes (silicones) and/or mixtures thereof are applied to the luminescent particles, and to a production process.