US Patent 11084935 Method of making functionalized quinacridone pigments
Patent 11084935 was granted and assigned to E Ink Corporation on August, 2021 by the United States Patent and Trademark Office.
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Patent abstract
Quinacridone pigments that are surface-functionalized with glycidyl methacrylate, maleic anhydride, or 4-methacryloxyethyl trimellitic anhydride to create a functionalized pigment. The functional groups are then activated to bond hydrophobic polymers, thereby coating the pigment with the hydrophobic polymers. The quinacridone pigments can be used for a variety of applications. They are well-suited for use in electro-optic materials, such as electrophoretic media for use in electrophoretic displays.
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Patent Inventor Names
Jason D. Feick0
Ziyan Wu0
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US Patent 11084935 Method of making functionalized quinacridone pigments
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Patent applicant
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Patent jurisdiction
Patent number
11084935
Date of patent
August 10, 2021
Patent application number
20200413
Date Filed
April 13, 2020
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