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. 02, 2002
Filed:
Nov. 29, 2000
Dieter Vollath, Stutensee, DE;
Steffen Heidenreich, Linhenheim-Hochstetten, DE;
Friedrich Wacker, Landau, DE;
Forschungszentrum Karlsruhe, Karlsruhe, DE;
Abstract
In a method of manufacturing a gold containing pigment, a vaporizable gold compound, a vaporizable compound of another metal, which includes an oxide or a nitride with a melting temperature above the melting temperature of gold, and a reaction gas consisting of a mixture of argon and oxygen are introduced into a first microwave plasma, whereby cores covered with gold clusters are formed from the oxide or nitride and the gold cluster covered cores are subjected to a tempering process at 150° C. to 300° C. for causing coloration of the gold cluster covered oxide or nitride cores.