Carrier resins with improved relative humidity sensitivity
AssigneesXerox Corporation, National Research Council of Canada
InventorsRichard P. Veregin, Qingbin Li, Andriy Kovalenko, Sergey Gusarov, Darren Makeiff, Valerie Farrugia, Michael S. Hawkins
Life of this patent
Estimating the term…
Abstract
The disclosure generally describes carrier resins, and in particular, resins used for carrier coatings which include at least one ester functional group and at least one cyclic aliphatic group containing at least one nitrogen atom in the cyclic ring structure. Carriers having such resins in the coating exhibit high charge and excellent relative humidity (RH) sensitivity of charge to changing environmental conditions.
Claims19
A toner carrier comprising:
- a carrier core;
- and
- a carrier coating disposed over the carrier core, wherein the carrier coating comprises one or more monomers having at least one ester functional group and at least one cyclic aliphatic group containing at least one nitrogen atom in the ring structure;
- wherein the one or more monomers has the following formula:
- wherein R1 is H, or CH3,
- each R2, R3, R4, R5, R6, R7, R8, R9, R10 is independently H, CH3, or CH2CH3.
A toner carrier comprising:
- a carrier core;
- and
- a carrier coating disposed over the carrier core, wherein the carrier coating comprises one or more monomers having at least one ester functional group and at least one cyclic aliphatic group containing at least one nitrogen atom in the ring structure;
- wherein the one or more monomers are selected from the group consisting of 1-acetylpiperidin-4-yl, 1-pivaloylpiperidin-4-yl methacrylate, piperidin-1-yl methacrylate, 2,6,6-tetramethylpiperidin-1-yl, thiomorpholin-4-yl methacrylate and mixtures thereof.
A developer comprising:
- a toner;
- and
- a toner carrier, the toner carrier comprising
- a carrier core, and
- a carrier coating disposed over the carrier core, wherein the carrier coating comprises one or more monomers having at least one ester functional group and at least one cyclic aliphatic group containing at least one nitrogen atom in the ring structure;
- wherein the one or more monomers are selected from the group consisting of 1-acetylpiperidin-4-yl, 1-pivaloylpiperidin-4-yl methacrylate, piperidin-1-yl methacrylate , 2,6,6-tetramethylpiperidin-1-yl, thiomorpholin-4-yl methacrylate and mixtures thereof.
A toner carrier comprising:
- a carrier core;
- and
- a carrier coating disposed over the carrier core, wherein the carrier coating comprises one or more monomers having at least one ester functional group and at least one cyclic aliphatic group containing at least one nitrogen atom in the ring structure;
- wherein the one or more monomers are selected from the group consisting of 1-acetylpiperidin-4-yl, 1-pivaloylpiperidin-4-yl methacrylate, thiomorpholin-4-yl methacrylate and mixtures thereof.
Dependencies are inferred from the claim text.