Patent ID: 8556198
Filing Date: 2013-10-15
Classification: A61K,C03C,Y10T

Abstract:
1. A process for producing a glass powder, comprising: wet grinding a starting material of glass in a mill with grinding bodies to produce a grinding slurry, the grinding bodies comprising a material that is the same as or has the same refractive index as the starting material to form a mixture of glass particulates and particles, and the grinding slurry having ground glass particles with a first particle distribution with a first mean particulate size of less than or equal to 1.5 μm and disruptive glass particles with a second mean particulate size of greater than 10 μm; and passing the grinding slurry through a net and/or sieve having a mesh size that corresponds substantially to a minimum diameter of the particles to be separated to remove the particles having a particle size of greater than 10 μm by separation, wherein the first particle distribution is preserved.