Method and apparatus for elastomer finishing
US7858735B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2009 |
| Grant date | Dec 28, 2010 |
| Priority date | — |
| Expiry date | Aug 7, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2009/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In the production of elastomers the product obtained from the polymerization process is often in the form of a slurry. Described herein are an apparatus and a process for “finishing” the elastomer, i.e., dewatering and drying the elastomer. The process comprises the steps of obtaining a slurry comprising water and elastomer; passing the slurry through a first dewatering device to produce a wet elastomer crumb, wherein the first dewatering device comprises two dewatering extruders in parallel; passing the wet elastomer crumb through a second dewatering device; and then passing the wet elastomer crumb through a drying device to produce a dried elastomer crumb.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.