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, 2015
Filed:
Apr. 07, 2010
Puthalath K. Sujeeth, Ballwin, MO (US);
John P. Kane, Ellisville, MO (US);
Daniel A. Ouellette, St. Peters, MO (US);
Mark Ulrich, Florissant, MO (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);
Sensient Colors LLC, St. Louis, MO (US);
Abstract
A method of modifying a particle 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), and reacting the particle with the substituted reactive intermediate [Y]—X—(N—S-ZM)to attach the substituted reactive intermediate to the surface of the particle to form a surface modified particle. The particle may comprise at least one of a dye particle, an inorganic pigment particle, an additive, or a combination thereof. X may be a sulfonyl, phosphoryl, or 1,3,5-triazinyl group. Y may be a halogen leaving group. N may be a nucleophilic group. S may be an organic group. 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 wherein if b is 2 or 3, each N—S-ZM can be the same or different.