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US 2006/0223934 A1Published application
Melt mixing process
AssigneeXerox Corporation
InventorsAllen Chen, Tie Ng, Paul Szabo
Life of this patent
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Abstract
Processes for generating aqueous dispersions for use in the emulsion/aggregation technique, by combining crystalline polyester resin, amorphous polyester resin and water, heating and agitating the mixture and generating an aqueous dispersion containing both crystalline polyester resin particles and amorphous polyester resin particles.
Claims23
A process, comprising:
- combining a crystalline polyester resin, an amorphous polyester resin and water to create a mixture;
- heating the mixture of resins and water;
- and
- agitating the mixture of resins and water to generate an aqueous dispersion.
1 more element
A process, comprising:
- melt-mixing a crystalline polyester resin and an amorphous polyester resin at a temperature of about 90° C. to about 220° C.;
- adding the mixture of resins into water;
- heating the water including the mixture to a temperature of about 50° C. to about 150° C.;
- and
- agitating the mixture and water to generate an aqueous dispersion.
2 more elements
A process, comprising:
- mixing a crystalline polyester resin in hot or cold water below its dispersability to form a premixture;
- heating the premixture to a temperature of about 50° C. to about 150° C.;
- adding an amorphous polyester resin to the premixture to form a mixture of resins and water;
- and
- agitating the mixture of resins and water to generate an aqueous dispersion.
2 more elements
Dependencies are inferred from the claim text.