Polymer coated carrier particles for electrophotographic developers
December 22, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2890968 3668126 3806458 Highly classified oxidized developer material Toner for developing electrostatic latent images Coated carrier particles for use in electrophotographic process Electrophotographic carrier powder coated by resin dry-mixing process Imaging system Conductive carrier for magnetic brush cleaner Liquid developer compositions with a vinyl polymeric gel InventorsAssigneeApplicationNo. 136791 filed on 12/22/1987US Classes:430/111.32, Ferrite core-resin shell carrier428/407, Including synthetic resin or polymer430/111.34, Chemically identified elemental magnetic metal or magnetic alloy carrier430/111.4, Identified physical parameter of carrier particle or dry toner particle, etc. (Tg, MW, coercivity, density, etc.)526/934ELECTRODEPOSIT, E.G., ELECTROPHORETIC, XEROGRAPHIC, ETC.ExaminersPrimary: Welsh, J. DavidAttorney, Agent or FirmForeign Patent References
International ClassG03G 009/10AbstractA carrier composition comprised of a core with a coating thereover comprised of a mixture of first and second polymers that are not in close proximity thereto in the triboelectric series. |
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