Method and device for decontaminating polycondensates
US6730774B1 · kind B1 · utility
6Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2002 |
| Grant date | May 4, 2004 |
| Priority date | — |
| Expiry date | Nov 3, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1321
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a process and an apparatus for decontaminating polycondensates, such as RPET or similar polymeric materials, in particular comminuted PET bottles. The object is to simplify existing recycling processes. This is achieved by comminuting used PET products to give flakes, and cleaning these flakes. The flakes are further decontaminated immediately and continuously in a hot gas stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.