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:
Jun. 22, 1993
Filed:
Jun. 26, 1992
Applicant:
Inventors:
Assignee:
Merck Patent Gesellschaft mit beschrankter Haftung, Darmstadt, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09C / ;
U.S. Cl.
CPC ...
106449 ; 106417 ; 106479 ; 106456 ;
Abstract
The invention relates to surface-modified platelet-like pigments based on platelet-like substrates which are coated with a titanium dioxide layer and a thin alkaline earth metal titanate film on top of it, in which the pigment, in order to increase the photostability and to decrease the surface reactivity towards organic compounds, is ignited at temperatures of at least 800.degree. C.