Polyolefin pipe
US9963573B2 · kind B2 · utility
1Cited by
2References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2014 |
| Grant date | May 8, 2018 |
| Priority date | — |
| Expiry date | Apr 23, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2023/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
This invention relates to a polymeric pipe, and more particularly a polymeric pipe where the pipe comprises a crosslinked polyolefin formed from extruded polyolefin comprising a photoinitiator and a reactive extrusion species. More particularly, this invention relates to the manufacturing of plastic pipes and tubing by utilizing co-rotating twin screw extrusion combined with photo-induced crosslinking, of thermoplastic polymers such as polyethylene, to produce PEX pipes and tubing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.