Liquid developer compositions with copolymers
AssigneeXerox Corporation
InventorsScott D. Chamberlain, David H. Pan, Christopher M. Knapp, John W. Spiewak, George A. Gibson, Frank J. Bonsignore
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Abstract
A positively charged liquid developer comprised of a nonpolar liquid, thermoplastic resin particles, pigment, a charge director, and a charge control agent comprised of a PEO:PPO, preferably in a solid form.
Claims24
A positively charged liquid developer comprised of a nonpolar liquid, resin, pigment, a charge director, and a charge control agent comprised of poly(ethylene oxide-b-propylene oxide-b-ethylene oxide) triblock copolymer.
A positively charged liquid developer comprised of a nonpolar liquid, thermoplastic resin particles, pigment, a charge director, and a charge control agent comprised of poly(ethylene oxide-b-propylene oxide-b-ethylene oxide) copolymer with an M.sub.w of from greater than about 4,700 to about 117,000 when the PPO content is less than or equal to about 50 percent.
A liquid developer comprised of the charge control agent poly(ethylene oxide-b-propylene oxide-b-ethylene oxide) triblock copolymer.
Dependencies are inferred from the claim text.