Toner compositions
AssigneeXerox Corporation
InventorJanet M. Bortfeldt
Life of this patent
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Abstract
A toner composition comprised of resin, pigment particles, wax, and a surface additive of silica treated with a dimethyl silicone fluid.
Claims20
A process for the preparation of toner with enhanced flowability consisting essentially of admixing resin, charge additive, wax, and magnetite, and thereafter adding thereto a surface additive comprised of a hydrophobic silica coated with a dimethyl silicone fluid, and further wherein said surface additive possesses a surface area, BET of from about 80 to about 120 m.sup.2 /g, a carbon weight percent of from about 4.5 to about 6.1 percent, a size diameter of from about 15 to about 40 nanometers, and wherein said toner possesses a cohesivity of from about 3 to about 15 percent.
A process for the preparation of toner with enhanced flowability consisting of admixing resin, charge additive, wax, and magnetite, and thereafter adding thereto a surface additive comprised of a hydrophobic silica coated with a dimethyl silicone fluid, and further wherein said surface additive possesses a surface area, BET of from about 80 to about 120 m.sup.2 /g, a carbon weight percent of from about 4.5 to about 6.1 percent, a size diameter of from about 15 to about 40 nanometers, and wherein said toner possesses a cohesivity of from about 3 to about 15 percent.
Dependencies are inferred from the claim text.