Process for making granulate of polymeric material
US6052919A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 2, 1998 |
| Grant date | Apr 25, 2000 |
| Priority date | — |
| Expiry date | Dec 2, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/10
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In a process for making plastic granulate, a polymeric material is plastifyed into a plastic mass which is divided into single plastic strands. After pressing the plastic strands in a stream of cooling liquid, the plastic strands are shredded in the cooling liquid into granules, thereby forming a dispersion which is conveyed through a first conduit to a separator. The dispersion is concentrated in the separator by withdrawing a portion of cooling liquid, and subsequently transported to a dryer along a second conduit which is longer than the length of the first conduit. In the dryer, the cooling liquid is separated from the granulate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.