Process of recycling waste polymeric material and an article utilizing the same
US5914353A · kind A · utility
19Cited by
28References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 1997 |
| Grant date | Jun 22, 1999 |
| Priority date | — |
| Expiry date | Jul 18, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/62
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides for an improved process for recycling waste polymeric material comprising a mixture of waste polymeric material wherein the waste polymeric material includes from about 0 to 40 percent aliphatic polyamide material; granulating and densifying the chopped mixture into fragments at least about 100 times smaller than the size of the waste polymeric material; and extruding the ground mixture at a temperature that does not exceed the temperature at which the largest portion of polymer based material decomposes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.