Upgraded polyethylene for jacketing
Patent Information
- Authority / Receiving Office
- PL · PL
- Patent Type
- Patents
- Current Assignee / Owner
- BOREALIS GMBH
- Filing Date
- 2021-05-17
- Publication Date
- 2026-07-06
AI Technical Summary
Existing recycled polyethylene solutions for jacketing materials suffer from poor mechanical properties, such as the ESCR (Environmental Stress Crack Resistance) and tensile strain at break, which severely limit their end-use applications, particularly in jacketing applications, where a failure time of >1000 hours is desirable. In addition to that there is usually a problem with tensile strain at break values, whereby the end-use applications are severely limited.
A mixed-plastic-polyethylene composition comprising a mixed-plastic-polyethylene primary recycling blend, a secondary component of virgin high-density polyethylene, and a second virgin high-density polyethylene, with specific carbon atom units and densities, blended and extruded to achieve excellent ESCR performance and strain hardening, suitable for cable jacketing.
The composition achieves ESCR performance of >1000 hours, preferably >2000 hours, with good strain hardening and mechanical properties comparable to virgin polyethylene blends, suitable for cable jacketing applications.