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. 18, 2003
Filed:
Apr. 24, 2002
Applicant:
Inventors:
Hartmut Rudolf Fischer, Mierlo, NL;
Lawrence Fabian Batenburg, Eindhoven, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B 1/410 ;
U.S. Cl.
CPC ...
C04B 1/410 ;
Abstract
This invention relates to a method for preparing a coloring pigment, wherein an anionic or cationic clay, which clay contains substantially no agglomerates of clay sheets, is subjected to an ion exchange with an organic dye. The invention further relates to a coloring pigment and the use thereof for coloring substrates.