Solid material comminution or disintegration – Processes – By operations other than force of contact with solid surface
Reexamination Certificate
2011-03-01
2011-03-01
Francis, Faye (Department: 3725)
Solid material comminution or disintegration
Processes
By operations other than force of contact with solid surface
C241S170000
Reexamination Certificate
active
07896267
ABSTRACT:
A material to be treated containing solid particles in a liquid is stirred together with milling media, and irradiated with ultrasonic waves during stirring to finely mill the solid particles to nanometer size and disperse the solid particles in the liquid. The ultrasonic waves create cavitation in the liquid and upon decay of the cavitation, shock waves are produced that cause the solid particles to vigorously collide with one another and with the milling media and these collisions, together with the shearing forces created by collision of the milling media, can produce on a commercial scale nano particles having an average particle size of at most 100 nm.
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Hatsugai Choji
Inoue Yoshitaka
Ishigaki Takamasa
Kamiya Hidehiro
Li Ji-Guang
Adams & Wilks
Francis Faye
National Institute for Materials Science & Inoue Mfg., Inc.
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