Method and apparatus for removing fine particles from synthetic resin pellets
US5494171A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 1994 |
| Grant date | Feb 27, 1996 |
| Priority date | — |
| Expiry date | Mar 22, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB07B11/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Fine particles which electrostatically adhere to synthetic resin pellets are separated from the pellets by bringing the pellets/fine particles mixture into contact with an ionized gas. The ionized gas eliminates the electrostatic adhesion between the synthetic resin pellets and the fine particles. The resulting fine particles may thereafter be readily separated from the pellets and the freed fine particles may be withdrawn in a gas stream. Removal of the fine particles to less than 40 ppm is possible. Apparatus for carrying out the method is also described as is a system for stocking synthetic resin pellets using the described apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.