IP Library Granted Patent US 8,329,812
Granted Patent B2
US 8,329,812 · App. 13/192,374 · Granted Dec 11, 2012

Aqueous dispersions for use as toners

Assignee: Dow Global Technologies LLC
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Quick Facts
Patent No.
US 8,329,812
App. No.
13/192,374
Granted
Dec 11, 2012
Kind
B2
Abstract

A compound that includes an aqueous dispersion, wherein the dispersion includes a thermoplastic resin and at least one stabilizing agent, and at least one selected from the group consisting of a colorant and a magnetic pigment, wherein the dispersion has an average volume diameter particle size from about 0.05 to about 10 microns is described.

Claims (11)

1. A compound comprising:

an aqueous dispersion, the dispersion comprising the melt kneaded product of:

(A) a thermoplastic resin, wherein the thermoplastic resin is at least one selected from the group consisting of an ethylene-based homopolymers, ethylene-based copolymers, ethylene-based interpolymers, ethylene-based multi-block interpolymers, propylene-based homopolymers, propylene-based copolymers, propylene-based interpolymers, propylene-based multi-block interpolymer, and combinations thereof; and

(B) at least one stabilizing agent; and

at least one selected from the group consisting of a colorant, and a magnetic pigment,

wherein the dispersion has an average volume diameter particle size from about 0.05 to about 10 microns.

2. The compound of claim 1 , further comprising at least one of auxiliary fine particles, a charge control agent, a lubricant, and a polishing agent.

3. The compound of claim 1 , wherein the thermoplastic resin comprises an ethylene-propylene copolymer.

4. The compound of claim 1 , wherein components A and B together are present in an amount of 45-99% by weight.

5. A toner formed from the compound of claim 1 .

6. A cartridge or process cartridge comprising the toner of claim 5 .

Assignments (2)
CHANGE OF NAME Recorded Oct 23, 2012
From: DOW GLOBAL TECHNOLOGIES INC.
To: DOW GLOBAL TECHNOLOGIES LLC
Reel/Frame 029172/0903 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 27, 2011
From: KLIER, JOHN; VARJIAN, RICHARD D.
To: DOW GLOBAL TECHNOLOGIES INC.
Reel/Frame 026973/0641 →
Continuity (3)
Division 11712206 · Feb 28, 2007
Provisional Application 60779126 · Mar 3, 2006
Related Publication 20110281212A1 · Nov 17, 2011