In fact, research of the archives of affordable dispersion technology would find that most of the recent innovations would prove uninspiring with the exception of one — media milling.
Thixotropic materials also posed a challenge to the ball mill because of the need to stop the rotation of the cylinder to discharge the product. Once the motion of the media through the product stopped, in many instances, so did the flow out the discharge area. Cleaning, yield and media costs were major concerns.