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:
Jan. 30, 2001
Filed:
Aug. 13, 1998
Andreas Schulz, Neu-Isenburg, DE;
G{umlaut over (u)}nter Schmid, Velbert, DE;
Gabor Louis Hornyak, EverGreen, CO (US);
Thomas Sawitowski, Essen, DE;
Cerdec Aktiengesellschaft Keramische Farben, Frankfurt, DE;
Abstract
Red decorations on substrates which can undergo decorative baking, such as glass, porcelain, ceramic and metal, can be produced using nanoporous aluminium oxide membranes according to the invention, the nanopores of which contain ligand-stabilized gold clusters. The membrane is applied to the substrate followed by baking, resulting in formation of the red color. Alternatively, the membrane can be converted into a red membrane by thermolysis, after which the membrane is employed for production of the decoration. The membranes according to the invention can be obtained by bringing a nanoporous Al,O,membrane into contact with a solution of a ligand-stabilized gold cluster, in particular one of the formula Au,L,X,, wherein L is a phosphane ligand and X is an anion.