Electrophotographic toner surface treated with silica mixtures
First Claim
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1. An electrostatographic toner comprising toner particles that have been surface treated with a mixture of silica particles;
- one type of silica particles having a particle size of 0.05 to 30 μ
m and containing a solvent selected from aliphatic alcohols, diols, and triols, aliphatic ketones, aliphatic esters, cyclic ethers and aliphatic ethers; and
a second type of silica particles having a BET surface area of 40 to 400 m2/g.
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Abstract
An electrostatographic toner comprising toner particles that have been surface treated with a solvent and silica particles having a BET surface area of 40 to 400 m2/g; wherein the solvent is selected from aliphatic alcohols, diols and triols, aliphatic ketones, aliphatic esters, cyclic ethers and aliphatic ethers.
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Citations
21 Claims
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1. An electrostatographic toner comprising toner particles that have been surface treated with a mixture of silica particles;
- one type of silica particles having a particle size of 0.05 to 30 μ
m and containing a solvent selected from aliphatic alcohols, diols, and triols, aliphatic ketones, aliphatic esters, cyclic ethers and aliphatic ethers; and
a second type of silica particles having a BET surface area of 40 to 400 m2/g. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 19, 21)
- one type of silica particles having a particle size of 0.05 to 30 μ
- 16. A method of making an electrostatographic toner comprising mixing at least one first silica particle having a BET surface area of 40 to 400 m2/g with at least one second silica particle of a particle size of 0.05 to 30 μ
Specification