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:
Dec. 29, 1998
Filed:
May. 27, 1997
Applicant:
Inventors:
Leonardus Johannes Erkens, Maastricht, NL;
Gregor Schmitt, Landgraaf, NL;
Hendrikus Maria Hamers, Selfkant, DE;
Johannes Maria Luijten, Bocholtz, NL;
Jozef Gertruda Mains, Nieuwstadt, NL;
Assignee:
Ciba Specialty Chemicals Corporation, Tarrytown, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
106479 ; 106400 ; 106401 ; 423593 ;
Abstract
Transparent bismuth vanadate pigments and a process for their preparation. Coating bismuth vanadate pigment precursors prepared by known methods with coating compositions conventionally used for coating pigments prior to the customary calcination gives bismuth vanadate pigments of high transparency.