Solid material comminution or disintegration – Processes – With application of fluid or lubricant material
Patent
1999-05-14
2000-08-08
Husar, John M.
Solid material comminution or disintegration
Processes
With application of fluid or lubricant material
241 27, 241175, 241182, B02C 1700, B02C 1722
Patent
active
060989068
ABSTRACT:
The present invention provides a vibratory mill for grinding dental filler having a grinding chamber, preferably coated with an abrasion resistant polymer, the grinding chamber being charged with glass beads having a diameter in the range of about 0.1 mm to about 10.00 mm, and a refractive index substantially matching that of the dental filler to be ground. There is further provided a method of using this mill and media to provide substantially pure ground particles having an average particle size less than the average wavelength of visible light that, when incorporated into a dental restorative composite, impart good optical properties to the cured material.
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Husar John M.
Kerr Corporation
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