Back to results
US 7,056,962 B2Granted
Modified pigments having improved dispersing properties
AssigneeCabot Corporation
InventorsJoseph E. Johnson, Nanying Bian, Collin P. Galloway
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeCabot Corporation
InventorsJoseph E. Johnson, Nanying Bian, Collin P. Galloway
Estimating the term…
Various modified pigment products are described which are preferably capable of being dispersed in a variety of materials such as coatings, inks, toners, films, plastics, polymers, elastomers, and the like. The modified pigments are pigments having attached groups, such as polymeric groups, onto the pigment by means other than adsorption. A modified pigment product is described comprising a pigment having attached at least one group comprising the formula: —X—[NIon]pR wherein X comprises an aromatic group or an alkyl group, NIon comprises at least one type of non-ionic group, R represents hydrogen or comprises an aromatic group or an alkyl group, and p represents an integer of from 1 to 500. Modified pigment products are also described comprising a pigment having attached at least one alkylene oxide group or at least one polymeric group. In addition, other types of modified pigment products are described as well as their incorporation into inks, coatings, toners, films, plastics, polymers, elastomers, and the like. Methods of making the modified pigment products are also described.
A modified pigment product comprising a pigment having attached at least one aromatic or alkyl group X, wherein X is substituted with at least one group comprising the formula:
An ink composition comprising a) at least one liquid vehicle;
An ink composition comprising a) at least one liquid vebicle;
An ink composition comprising a) at least one liquid vehicle;
Dependencies are inferred from the claim text.