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:
Apr. 03, 2012
Filed:
Mar. 08, 2011
Puthalath K. Sujeeth, Ballwin, MO (US);
Mark Ulrich, Florissant, MO (US);
Gabe Srouji, Kirkland, MO (US);
John P. Kane, Ellisville, MO (US);
Daniel A. Ouellette, St. Peters, MO (US);
Puthalath K. Sujeeth, Ballwin, MO (US);
Mark Ulrich, Florissant, MO (US);
Gabe Srouji, Kirkland, MO (US);
John P. Kane, Ellisville, MO (US);
Daniel A. Ouellette, St. Peters, MO (US);
Sensient Colors LLC, St. Louis, MO (US);
Abstract
A method of producing a modified pigment by sulfonating a pigment and subsequently oxidizing the pigment. The modified pigment may have sulfonic acid and carboxyl surface modifying groups attached to the surface of the pigment. Charge balancing counterions such as alkali metals, alkaline earth metals and NRRRH, where R, Rand Rare independently H or C-Calkyl groups, may be associated with the surface modifying groups. The modified pigment is combined with water to produce a dispersion that can be used in such applications as coatings, paints, papers, adhesives, latexes, toners, textiles, fibers, plastics and inks.