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US 2011/0217645 A1Published application
Toner compositions and methods
AssigneeXerox Corporation
InventorsKe ZHOU, Cuong VONG, Edward Graham ZWARTZ, Karen A. MOFFAT
Life of this patent
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Abstract
A toner and method for making a toner that includes an amorphous resin, a crystalline resin, and a cyanine dye. The cyanine dye improves heat cohesion without negatively effecting other desirable properties.
Claims19
Toner particles, comprising:
- an amorphous resin,
- a crystalline resin, and
- a cyanine dye, wherein the cyanine dye is selected from the group consisting of:
(canceled)
The toner particles of claim 9, wherein the cyanine dye is represented by the following formula:
- wherein:
- n is 0, 1, or 2;
- R1 and R3 are independently substituted or unsubstituted alkyl groups having from about 1 to about 20 carbon atoms;
- R2 is selected from the group consisting of a halogen, a hydrocarbon group containing 1 to about 18 carbon atoms, and a heteroatom-containing group;
- X− is selected from the group consisting of BF4−, Cl−, ClO4−, Br− and I−;
- and
- the cyclic groups at the both ends each contain about 4 to about 28 carbon atoms.
4 more elements
The toner particles of claim 9, wherein the cyanine dye is selected from the group consisting of:
Toner particles, comprising:
- an amorphous resin,
- a crystalline resin, and
- a cyanine dye, wherein the toner particles comprise a core and a shell.
(canceled)
A method of making toner particles, the method comprising:
- emulsifying an amorphous resin, a crystalline resin, a cyanine dye, an optional colorant, and an optional wax to form pre-aggregated particles, wherein the cyanine dye is selected from the group consisting of:
- aggregating the pre-aggregated particles to form aggregated particles;
- coalescing the aggregated particles to form coalesced particles;
- and isolating the coalesced particles.
1 more element
-19. (canceled)
Dependencies are inferred from the claim text.