Crystalline polyester for toner
AssigneeKao Corporation
InventorsShinji Moriyama, Takashi Kubo, Yoshihiro Fukushima
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Abstract
The present invention relates to a crystalline polyester for toner, obtained by a process comprising the step of polymerizing raw material monomers in the presence of a wax, wherein the crystalline polyester has a number-average molecular weight of from 3000 to 10000 and a weight-average molecular weight of from 150000 to 8000000. The toner containing the crystalline polyester of the present invention can be used, for example, for developing electrostatic latent images formed in electrophotography, electrostatic recording method, electrostatic printing method, and the like.
Claims21
A toner comprising as a resin binder, a crystalline polyester and at least one amorphous resin, wherein the amorphous resin comprises an amorphous polyester, wherein the crystalline polyester is obtained by a process comprising polymerizing raw material monomers in the presence of a wax, and wherein the crystalline polyester has a number-average molecular weight of from 3000 to 10000 and a weight-average molecular weight of from 150000 to 530000.
Dependencies are inferred from the claim text.