Process for preparing ground resin particles and apparatus for preparing the same
US7237732B2 · kind B2 · utility
1Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 2001 |
| Grant date | Jul 3, 2007 |
| Priority date | — |
| Expiry date | Oct 17, 2021 |
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.