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:
Apr. 20, 2010
Filed:
Aug. 26, 2005
Applicants:
Frank Henglein, Nuremberg, DE;
Ulrich Schmidt, Hersbruck, DE;
Inventors:
Frank Henglein, Nuremberg, DE;
Ulrich Schmidt, Hersbruck, DE;
Assignee:
Eckart GmbH, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B 14/04 (2006.01); C09C 1/00 (2006.01); C04B 14/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to pearlescent pigments comprising platelet-shaped substrate, comprising metal oxide, and protective layer, said metal oxide having a refractive index of more than 1.8, where the protective layer is composed of an organic chemically surface modified SiOlayer, the organic chemical surface modification being applied on the SiOlayer. The invention further relates to a process for preparing these pearlescent pigments and to their use.