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:
Jun. 21, 2011
Filed:
Aug. 22, 2008
Puthalath K. Sujeeth, Ballwin, MO (US);
John P. Kane, Ellisville, MO (US);
Daniel A. Ouellette, St. Peters, MO (US);
Mark Ulrich, Florissant, MO (US);
Vincent Shing, Arnold, MO (US);
Michael Bogomolny, San Diego, CA (US);
Puthalath K. Sujeeth, Ballwin, MO (US);
John P. Kane, Ellisville, MO (US);
Daniel A. Ouellette, St. Peters, MO (US);
Mark Ulrich, Florissant, MO (US);
Vincent Shing, Arnold, MO (US);
Michael Bogomolny, San Diego, CA (US);
Sensient Colors LLC, St. Louis, MO (US);
Abstract
A method of modifying a pigment that includes reacting a reactive compound having an X-[Y]reactive group with a secondary compound N-S-ZM to form a substituted reactive intermediate [Y]-X-(N-S-ZM). A pigment is reacted with the substituted reactive intermediate [Y]-X-(N-S-ZM)to attach the substituted reactive intermediate to the surface of the pigment to form a surface modified pigment. X may be a sulfonyl, phosphoryl, or 1,3,5-triazinyl group, Y may be a halogen leaving group, N may be a basic nucleophilic group, S may be an organic group, and ZM may be an ionizable end group. Also, n is an integer between 1 and 3, b is an integer between 1 and 3, and a=n−b. When n is equal to or greater than b, and if b is 2 or 3, each N-S-ZM can be the same or different.