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Cabot Patents Modified Pigments



Published June 1, 2010
Patent No. U.S. 7,649,031 B2
Cabot Corporation has received a patent for a printing plate comprised of a substrate and an infrared or near-infrared radiation-absorptive layer, wherein the radiation-absorptive layer is comprised of at least one modified pigment product comprised of a pigment having attached at least one aromatic or alkyl group X, wherein X is substituted with at least one group comprised of the formula: -[polymer]R, wherein “polymer” represents repeating monomer groups or multiple monomer groups or both, optionally having at least one —X’ group, wherein X’ is comprised of at least one aromatic group or at least one alkyl group, and each X and X’ can be the same or different, R represents hydrogen, a bond, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aromatic group, and the total amount of monomer groups of “polymer” is not greater than approximately 500 monomer repeating units, and when R represents a bond, R optionally bonds to the pigment.


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