Alizarin-Based Polymer Colorants
First Claim
1. A polymer colorant comprising:
- polymer monomer units; and
at least one alizarin unit which is incorporated into the polymer and which provides color to the polymer colorant.
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Accused Products
Abstract
A polymer colorant including polymer monomer units, and at least one alizarin unit which is incorporated into the polymer and which provides color to the polymer colorant and a process for preparing the polymer colorant. An article or composition containing the polymer colorant. A toner including the polymer colorant, and optionally, one or more ingredients selected from the group consisting of crystalline polyester resins, amorphous polyester resins, colorants, waxes, coagulants, mordants, and mixtures and combinations thereof. A polymer latex including an aqueous dispersion of polymer colorant, wherein the polymer colorant comprises polymer monomer units and at least one alizarin unit which is incorporated into the polymer and which provides color to the polymer colorant; and optionally, a mordant.
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Citations
20 Claims
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1. A polymer colorant comprising:
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polymer monomer units; and at least one alizarin unit which is incorporated into the polymer and which provides color to the polymer colorant. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A polymer latex comprising:
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an aqueous dispersion of polymer colorant, wherein the polymer colorant comprises polymer monomer units and at least one alizarin unit which is incorporated into the polymer and which provides color to the polymer colorant; and optionally, a mordant.
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18. A toner comprising:
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a polymer colorant comprising polymer monomer units and at least one alizarin unit which is incorporated into the polymer and which provides color to the polymer; and optionally, one or more ingredients selected from the group consisting of crystalline polyester resins, amorphous polyester resins, colorants, waxes, coagulants, mordants, and mixtures and combinations thereof. - View Dependent Claims (19)
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20. A process for preparing a polymer colorant comprising:
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contacting at least one polymer monomer with at least one alizarin unit and polymerizing to form a polymer colorant wherein the alizarin is incorporated into the polymer and wherein the alizarin provides color to the polymer colorant; and determining the final color of the polymer colorant by one or more of the following;
(a) selecting a ratio of alizarin units relative to polymer monomer units, (b) selecting type of monomer units, (c) treating alizarin with a mordant prior to polymerizing, (d) treating alizarin with a mordant during polymerizing, e) treating the polymer colorant with a mordant after polymerizing, (f) selecting a ratio of alizarin units relative to polymer monomer units and selecting type of monomer units to control interaction of the alizarin monomeric unit with the other monomers comprising the polymer colorant.
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Specification