US 2001/0055722 A1 · Black toner composition providing enhanced transfer

Abstract

A black toner composition comprises dried pigmented LC toner particles comprising a thermoplastic polymer and a carbon pigment having a BET value of up to about 140, and submicron particulate addendum material disposed on the dried pigmented LC toner particles. A process for forming the toner composition comprises: forming pigmented LC toner particles comprising a thermoplastic polymer and a carbon pigment having a BET value of up to about 140, drying the pigmented LC toner particles, and blending the dried pigmented LC toner particles with submicron particulate addendum material.

Claims30

Dependent claims

A black toner composition comprising:

dried pigmented LC toner particles comprising a thermoplastic polymer and a carbon pigment having a BET value of up to about 140;
and
submicron particulate addendum material disposed on said dried pigmented LC toner particles.

Dependencies are inferred from the claim text.

Facts

Application

09/904,417Filed 12 Jul 2001

Priority

4 Feb 2000

Published

27 Dec 2001

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

G03G 9/0819
With toner particles: characterised by the dimensions of the particles
G03G 9/0821
With toner particles: characterised by physical parameters
G03G 9/08755
Comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds: polyesters
G03G 9/0902
Colouring agents for toner particles: inorganic compounds

Black toner composition providing enhanced transfer

Life of this patent

Black toner composition providing enhanced transfer

Life of this patent

Abstract

Claims30