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:
May. 14, 2019
Filed:
May. 04, 2016
Applicant:
Evonik Degussa Gmbh, Essen, DE;
Inventors:
Terry W. Nassivera, Gambrills, MD (US);
Karl W. Gallis, Pennyville, MD (US);
Assignee:
Evonik Degussa GmbH, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09C 1/28 (2006.01); C09C 1/62 (2006.01); C09C 1/40 (2006.01); C09C 1/30 (2006.01); C09B 67/02 (2006.01);
U.S. Cl.
CPC ...
C09C 1/28 (2013.01); C09B 67/0097 (2013.01); C09C 1/309 (2013.01); C09C 1/3063 (2013.01); C09C 1/3072 (2013.01); C09C 1/405 (2013.01); C09C 1/62 (2013.01); C01P 2002/84 (2013.01); C01P 2004/61 (2013.01); C01P 2006/10 (2013.01); C01P 2006/12 (2013.01); C01P 2006/14 (2013.01); C01P 2006/19 (2013.01);
Abstract
Color-bleed resistant pigment particles containing an anionic dye, a quaternary ammonium compound, and a silica and/or silicate material having a negative zeta potential are disclosed. Related methods of making these colored pigment particles also are provided.