Sensient Colors Incorporated

Vincent Shing

Puthalath K Sujeeth

Mark Ulrich

John P Kane

Daniel A Ouellette

Michael Bogomolny

Marck Ulrich

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

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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Arnold, MO, United States of America

Vincent Shing