Neutralizing agents for resin emulsions
AssigneeXerox Corporation
InventorsYulin Wang, Shigang Steven Qiu, Ke Zhou, Karen Moffat, Edward G. Zwartz, Michael Hawkins, Paul Gerroir
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Abstract
Incorporation of organic amines as neutralization agents in based phase inversion emulsification (PIE) processes to provide emulsification of high molecular amorphous and high molecular branch amorphous polyester resins, which are traditionally difficult to emulsify. The organic amines facilitate emulsification of these resins to achieve desired particle size with a narrow size distribution.
Claims20
A process comprising:
- mixing at least one polyester resin with a solvent to form a resin mixture;
- neutralizing the resin mixture with a neutralizing agent in water;
- and
- agitating the resin mixture and neutralizing agent in water to form an aqueous emulsion, wherein the neutralizing agent is an organic amine.
The process of claim 3, wherein the polyester resin has a number average molecular weight of from about 2,000 to about 300,000.
A process comprising:
- mixing at least one polyester resin with a solvent to form a resin mixture, wherein the polyester resin is a high molecular weight polyester amorphous resin or a high molecular weight branched polyester amorphous resin;
- neutralizing the resin mixture with a neutralizing agent in water;
- and
- agitating the resin mixture and neutralizing agent in water to form an aqueous emulsion, wherein the neutralizing agent is an organic amine selected from the group consisting of triethylamine, triethaneolamine, and mixtures thereof.
An emulsion aggregate toner comprising:
- at least one polyester resin in a solvent;
- a neutralizing agent being an organic amine;
- and
- one or more toner additives.
Dependencies are inferred from the claim text.