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:
Oct. 29, 2013
Filed:
May. 15, 2009
Applicants:
Reinhold Rueger, Roedermark, DE;
Anke Geisen, Paderborn, DE;
Gerald Karn, Pfungstadt, DE;
Inventors:
Assignee:
Merck Patent GmbH, Darmstadt, DE;
Primary Examiner:
Int. Cl.
CPC ...
C08K 3/40 (2006.01); C08K 3/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a glass composition comprising crystalline phases, and to glass flakes produced therefrom. These glass flakes can be used as base substrate for effect pigments. The glass flakes can furthermore be used in paints, coatings, printing inks, plastics and in cosmetic formulations. The glass flakes are converted into glass-ceramics, and are present in one of the following composition ranges I or II in % by weight: I: 40-50 SiO, 10-20 BO, 10-20 NaO, 15-30 TiO; II: 10-60 SiO, 5-30 BO, 5-40 TiO, 2-20 NbO, 2-20 FeO, 5-40 NaO+KO+CaO+SrO+BaO.