TONER POROUS PARTICLES CONTAINING HYDROCOLLOIDS
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Abstract
The present invention is toner particle that includes a continuous phase of binder polymer and a second phase of hydrocolloid. The particle has a porosity of at least 10 percent.
41 Citations
36 Claims
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1-16. -16. (canceled)
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17. A particle comprising:
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a continuous phase comprising a binder polymer, and a second phase comprising discrete pores in the particle stabilized by a Dore stabilizing hydrocolloid, wherein the particle has a porosity of at least 10 percent and contains water insoluble particulate stabilizer on the outer surface of the particle. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method of manufacturing porous particles comprising a continuous phase comprising a binder polymer and a second phase comprising discrete pores in the particle stabilized by a pore stabilizing hydrocolloid, wherein the particle has a porosity of at least 10 percent, the method comprising:
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providing a first emulsion of a first aqueous phase comprising a pore stabilizing hydrocolloid dispersed in an organic solution containing a polymer; dispersing the first emulsion in a second aqueous phase; shearing the second emulsion in the presence of a stabilizing agent to form droplets of the first emulsion in the second aqueous phase; and evaporating the organic solution from the droplets to form porous particles of a controlled size and size distribution. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification