Back to results
US 2003/0203302 A1Published application
Positively chargeable toner
AssigneeKao Corporation
InventorsYutaka Kanamaru, Masahito Yamazaki, Jiro Takemoto
Life of this patent
Estimating the term…
Abstract
A positively chargeable toner comprising a resin binder, a specified compound represented by the formula (I), and a higher fatty acid with a long-chain alkyl group having 8 to 22 carbon atoms and/or a metal salt thereof. The positively chargeable toner is a positively chargeable toner used for the development of a latent image formed in electrophotography, electrostatic recording method, electrostatic printing method or the like.
Claims5
A positively chargeable toner comprising:
- a resin binder,
- a compound represented by the formula (I):
- 5
- wherein each of R1 to R4, which may be identical or different, is hydrogen atom, an alkyl group having 1 to 30 carbon atoms, an alkenyl group having 2 to 30 carbon atoms, an aryl group having 6 to 20 carbon atoms or an aralkyl group having 7 to 20 carbon atoms;
- each of R5 to R12, which may be identical or different, is hydrogen atom, an alkyl group having 1 to 30 carbon atoms or an alkenyl group having 2 to 30 carbon atoms;
- and M is hydrogen atom or a monovalent metal ion, and
- a higher fatty acid with a long-chain alkyl group having 8 to 22 carbon atoms and/or a metal salt thereof.
4 more elements
Dependencies are inferred from the claim text.