Process for preparing ground resin particles and apparatus for preparing the same
US7604186B2 · kind B2 · utility
1Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2007 |
| Grant date | Oct 20, 2009 |
| Priority date | — |
| Expiry date | May 24, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB02C19/068
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for preparing ground resin particles is provided by modifying a jet mill with opposed fluidized bed. By using a jet mill having a plurality of jet nozzles disposed at predetermined positions in a barrel of a grinding chamber toward the injection point of the grinding chamber and a bottom wall having a flat surface in part or in whole, parallel to the jet nozzles, or having a conical projection immediately below the injection point, resin particles to be ground are jetted with or without water, thereby being ground to obtain ground resin particles of an intended particle size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.