Process of recycling waste polymeric material and an article utilizing the same
US6228479A · kind A · utility
23Cited by
41References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 14, 1998 |
| Grant date | May 8, 2001 |
| Priority date | — |
| Expiry date | Oct 14, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/254
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Articles of manufacture such as building materials are formed from recycled waste polymeric material including 15 to 50 percent aliphatic polyamide material. The articles are formed by chopping and granulating the waste polymeric material into fragments and extruding them at a temperature that is lower than the lowest melting point of the aliphatic polyamide material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.