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:
Jul. 10, 2007
Filed:
Aug. 21, 2002
Ralf Anselmann, Ramsen, DE;
Holger Winkler, Darmstadt, DE;
G. P. Hellmann, Mainz, DE;
Tillmann Ruhl, Griesheim, DE;
Günther Vulpius, Riedsladt, DE;
Harald Dörr, Messel, DE;
Ralf Anselmann, Ramsen, DE;
Holger Winkler, Darmstadt, DE;
G. P. Hellmann, Mainz, DE;
Tillmann Ruhl, Griesheim, DE;
Günther Vulpius, Riedsladt, DE;
Harald Dörr, Messel, DE;
Merck Patentgesellschaft, Darmstadt, DE;
Abstract
The invention relates to mouldings having an optical effect which essentially consist of core/shell particles whose shell forms a matrix and whose core is essentially solid and has an essentially monodisperse size distribution, where a difference exists between the refractive indices of the core material and of the shell material. The mouldings are characterized in that they are obtainable by a process in which the core/shell particles are heated to a temperature at which the shell is flowable, and the flowable core/shell particles are subjected to the action of a mechanical force.