Patent ID: 8652734

Claim:
A toner composition comprising: toner particles comprising an average diameter ranging from about 3 μm to about 10 μm, wherein the toner particles have an average mass density of 0.8 g/cm 3 or less, wherein the toner particle comprises a configuration selected from one of the following: a) a core surrounded by a shell, the core and the shell each comprising a resin independently selected from the group consisting of amorphous resins, crystalline resins, low density composite materials, and combinations thereof, the core further comprising a low density material that is different from the resin of the core, the low density material being selected from the group consisting of dissolved gas, low density oils, low density polymers and combinations thereof, wherein if the low density material is a dissolved gas, the dissolved gas is not air; or b) a shell comprising a first material and a core comprising a second material, the second material selected from the group consisting of carbon nanocomposites, porous minerals and porous ceramics, the second material having a lower density than the first material.