Toner compositions of biodegradable amorphous polyester resins
AssigneeXerox Corporation
InventorsGuerino G Sacripante, Ke Zhou, Rosa M Duque, Sonja Hadzidedic, Biritawit Asfaw
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Abstract
Disclosed is a toner that includes a mixture of a bio-based amorphous polyester resin, a crystalline polyester resin, and a colorant.
Claims15
A toner composition comprised of a mixture of a bio-based amorphous polyester resin, a crystalline polyester resin, and a colorant and wherein said bio-based amorphous polyester is generated by the reaction of a rosin acid with a glycerine carbonate in the presence of a catalyst, and subsequently the resulting rosin diol formed is reacted with a dicarboxylic acid.
A toner composition comprised of a mixture of a bio-based amorphous polyester resin obtained by the reaction of a rosin acid with a glycerine carbonate in the presence of a catalyst to form a rosin diol, followed by the reaction of said rosin diol with a dicarboxylic acid and an optional organic diol;
- a crystalline polyester, and a colorant, and wherein said bio-based amorphous polyester possesses a glass transition temperature of from about 40° C. to about 80° C. as measured by differential scanning calorimetry (DSC).
A toner composition comprised of a mixture of a bio-based amorphous polyester resin, a crystalline polyester resin, and a colorant, wherein said bio-based amorphous polyester is generated by the reaction of a rosin acid with a glycerine carbonate in the presence of a catalyst, wherein there results from said reaction of said rosin acid and said glycerine carbonate a rosin diol, a rosin monoglycerate, a bis rosin glycerate, or mixtures thereof followed by the reaction of said rosin diol, said rosin monoglycerate, said bis rosin glycerate, or said mixtures thereof with a dicarboxylic acid, and wherein said bio-based amorphous polyester resin product is present in an amount of from about 40 to about 80 weight percent of the toner solids.
Dependencies are inferred from the claim text.