Sensient Colors Incorporated

Other

Michael Bogomolny

Puthalath K Sujeeth

Mark Ulrich

John P Kane

Daniel A Ouellette

Vincent Shing

Diane Vernice Graff

Robert A Baydo

Constance L Lee

Ryan Joseph Cross

Daniel F Gloster

Jeff Kennedy

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

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 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.

Food grade ink jet inks which include food grade pigments, food grade lower alcohols, 1,2-propanediol, and shellacs are provided. Also provided are methods for making the ink jet inks and edible substrates having the food grade ink jet inks applied to a surface thereof. In some embodiments, the food grade ink jet inks contain at least about 20 wt. % propanediol.

Growing community of inventors

San Diego, CA, United States of America

Michael Bogomolny