Polymer blend for reducing gel content in formulations containing recycled polymer
A polymer blend of virgin and recycled ethylene-based polymers, incorporating hydrocarbon molecules with terminal alkene groups, effectively reduces gel content in films, addressing the variability and defects in recycled polymers, thus improving film quality and uniformity.
Patent Information
- Application Number
- KR1020267021273
- Authority / Receiving Office
- KR · KR
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-12-07
- Filing Date
- 2024-12-03
- Publication Date
- 2026-08-03
AI Technical Summary
Recycled polymers often contain variable and unpredictable gel content due to cross-linked defects, leading to degradation and non-uniformity in films, which existing technologies have not adequately addressed.
A polymer blend comprising a virgin ethylene-based polymer formed by high-pressure free radical polymerization with hydrocarbon molecules containing three or more terminal alkene groups and a recycled ethylene-based polymer with specific density and melt index is used to reduce gel content in films.
The polymer blend significantly reduces gel content across various sizes, enhancing film quality and uniformity by incorporating hydrocarbon molecules with terminal alkene groups, thereby improving the physical properties of films made from recycled polymers.