Process and apparatus for producing thermoplastic resin pellets
US8246875B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2009 |
| Grant date | Aug 21, 2012 |
| Priority date | — |
| Expiry date | Sep 29, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2077/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An object of the present invention is to provide a process for producing thermoplastic resin pellets, which realizes production of pellets of uniform shape. Another object of the present invention is to provide an apparatus for producing the thermoplastic resin pellets. The invention provides a process for producing thermoplastic resin pellets, including pressurizing the interior of a vessel holding a molten thermoplastic resin, thereby discharging the resin; forming pellets through solidification and cutting of the resin; and transferring the pellets to a storage container via a pipe by a pneumatic transportation or a suction transportation, wherein the amount of the resin discharged is regulated by controlling the pressure in the vessel so that variation in the difference pressure between the inlet and the outlet of the pipe for transferring the pellets is 10% or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.