Chemically prepared porous toner
First Claim
Patent Images
1. A toner comprising:
- a binder resin having a porosity of greater that 20 percent.
14 Assignments
0 Petitions
Accused Products
Abstract
The present invention provides a porous toner. The porous toner has a porosity of greater that 20 percent. The toner can include vinyl polymers, copolymers of styrene monomers and polyesters. In addition a method of manufacture of the toner particles is provided.
-
Citations
17 Claims
-
1. A toner comprising:
a binder resin having a porosity of greater that 20 percent. - View Dependent Claims (2, 3, 4, 5)
-
6. A toner comprising:
a binder resin comprising a styrene-butyl acrylate-divinyl benzene polymer having a porosity of greater that 20 percent. - View Dependent Claims (7, 8, 9)
-
10. A method of manufacturing toner particles comprising:
-
preparing an organic solution of water-immiscible polymerizable monomers, a polymerization initiator and a pore generating compound;
preparing a aqueous solution of a stabilizer;
emulsifying the aqueous solution and organic solution to form a mixture;
polymerizing the emulsified mixture to from porous polymer beads;
removing the pore generating compound from the porous polymer beads. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
-
Specification