Process for rapid production of colloidal particles
US5704556A · kind A · utility
43Cited by
28References
5Claims
0Family size
Inventor
Key dates
| Filing date | Sep 16, 1996 |
| Grant date | Jan 6, 1998 |
| Priority date | — |
| Expiry date | Sep 16, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/90
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In a process for rapidly producing colloidal particles a feedstock of particles less than a micron in size is provided to a stirred media mill, along with ceramic beads less than 100 microns in size. The mill is filled to a volume in excess of 90%, and operated at tip speeds in excess of 20 meters/second with a residence time less than about two minutes; thereby producing particles having an average particle size less than about 0.1 micron from the feedstock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.