Patent ID: 8557493

Claim:
A toner consisting of: an acidified bio-based resin of a bio-based amorphous polyester resin in combination with a bio-based acid; a crystalline polyester resin and one or more ingredients selected from the group consisting of colorants, waxes, and combinations thereof, wherein the acidified bio-based resin has an acid value of from about 2 mg KOH/g of resin to about 200 mg KOH/g of resin, and wherein said bio-based amorphous polyester resin and said bio based acid are derived from natural biological materials of plant based feed stocks or vegetable oils, and wherein said bio-based amorphous polyester resin has a carbon/oxygen ratio of from about 2 to about 15, wherein said toner consists of a core of said bio-based amorphous polyester resin, and said crystalline polyester, and a shell of said bio-based amorphous polyester resin, and wherein the bio-based acid is selected from the group consisting of citric acid, citric acid anhydride, and combinations thereof, present in an amount of from about 0.1% by weight to about 20% by weight of the bio-based amorphous resin and wherein said bio-based amorphous polyester resin is derived from a dimer diol, D-isosorbide, naphthalene dicarboxylate, and a dicarboxylic acid.