Toner porous particles containing hydrocolloids
First Claim
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1. A particle comprising:
- a continuous phase comprising a binder polymer, anda 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 and contains water insoluble particulate stabilizer on the outer surface of the particle.
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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.
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20 Claims
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1. 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 pore 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 (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. 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 dissolved in an organic solvent; 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 solvent from the droplets to form porous particles of a controlled size and size distribution. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification