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. 08, 1985
Filed:
Sep. 21, 1984
Applicant:
Inventors:
Axel Rau, Pfullendorf, DE;
Klaus-Dieter Franz, Kelkheim, DE;
Assignee:
Merck Patent Gesellschaft mit beschrankter Haftung, Darmstadt, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
106291 ; 1063 / ; 1063 / ; 428404 ;
Abstract
A dispersible Berlin blue pigment comprises Berlin blue deposited on to mica platelets. The pigment is additionally coated with a first coat of basic aluminum sulfate and a second coat of a mixture of a metal hydroxide with a polysiloxane or a fatty acid.