Sensient Colors Incorporated

Puthalath K Sujeeth

Daniel A Ouellette

Mark Ulrich

John P Kane

Michael Bogomolny

Vincent Shing

Gabe Srouji

Diane Vernice Graff

Ryan Joseph Cross

Daniel F Gloster

Jeff Kennedy

Marck Ulrich

A method of modifying a particle that includes reacting a reactive compound having an X&#x2014;[Y]reactive group with a secondary compound N&#x2014;S-ZM to form a substituted reactive intermediate [Y]&#x2014;X&#x2014;(N&#x2014;S-ZM), and reacting the particle with the substituted reactive intermediate [Y]&#x2014;X&#x2014;(N&#x2014;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&#x2212;b. When n is equal to or greater than b, and wherein if b is 2 or 3, each N&#x2014;S-ZM can be the same or different.

Self-dispersing particles and methods for making and using the same

A method of modifying a pigment that includes reacting a reactive compound having an X&#x2014;[Y]reactive group with a secondary compound N&#x2014;S&#x2014;ZM to form a substituted reactive intermediate [Y]&#x2014;X&#x2014;(N&#x2014;S&#x2014;ZM). A pigment is reacted with the substituted reactive intermediate [Y]&#x2014;X&#x2014;(N&#x2014;S&#x2014;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&#x2212;b. When n is equal to or greater than b, and if b is 2 or 3, each N&#x2014;S&#x2014;ZM can be the same or different.

Self-dispersed pigments and methods for making and using the same

An ink composition that includes a self-dispersing pigment that has about 0.02 to about 1.0 mMoles of S and about 0.2 to about 2.0 mMoles of active hydrogen per gram of pigment, water, and an organic solvent. A method of making an ink composition that includes sulfonating a pigment, subsequently oxidizing the pigment to produce a modified pigment, and incorporating the modified pigment into an ink.

Inks comprising modified pigments and methods for making and using the same

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.

Modified pigments and methods for making and using the same

A method of modifying a pigment that includes reacting a reactive compound having an X&#x2014;[Y]reactive group with a secondary compound N&#x2014;S&#x2014;ZM to form a substituted reactive intermediate [Y]&#x2014;X&#x2014;(N&#x2014;S&#x2014;ZM). A pigment is reacted with the substituted reactive intermediate [Y]&#x2014;X&#x2014;(N&#x2014;S&#x2014;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&#x2212;b. When n is equal to or greater than b, and if b is 2 or 3, each. N&#x2014;S&#x2014;ZM can be the same or different.

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&#x2212;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.

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Ballwin, MO, United States of America

Puthalath K Sujeeth