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:
Nov. 21, 1995
Filed:
Sep. 30, 1994
Applicant:
Inventors:
Gerhard Herget, Ober-Ramstadt, DE;
Margarete Herbski, Ober-Ramstadt, DE;
Karl Osterried, Dieburg, DE;
Assignee:
Merck Patent Gesellschaft Mit Beschrankter Haftung, Darmstadt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09C / ;
U.S. Cl.
CPC ...
106415 ; 106417 ; 106418 ; 106426 ; 106442 ; 106446 ; 106450 ; 106454 ; 106457 ; 106459 ; 106468 ; 106469 ; 106481 ; 106483 ; 106 / ; 514844 ; 428403 ; 428404 ; 523200 ;
Abstract
The present invention relates to surface-modified pigments based on platelet-like substrates which, for improving the settling and redispersion behavior, have been recoated with a mixture comprising two metal oxides selected from the group consisting of silica, alumina and zirconium dioxide.