Recycled fibers
EP4770867A1Pending Publication Date: 2026-07-08DOW GLOBAL TECHNOLOGIES LLC
0 Cites 0 Cited by
Patent Information
- Application Number
- EP2024772150
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-08-28
- Filing Date
- 2024-08-27
- Publication Date
- 2026-07-08
AI Technical Summary
Technical Problem
Existing methods struggle to produce non-woven fibers from post-consumer recycled polymeric materials due to the low melt index of recycled blow molded plastics, which is insufficient for fiber spinning.
Method used
The development of visbroken post-consumer recycled (PCR) ethylene-based polymers with a density of 0.925 g/cm3 to 0.970 g/cm3 and a melt index (I2) of at least 5 dg/10 min, enabling their use in producing fibers suitable for non-woven materials.
Benefits of technology
This solution allows for the production of fibers with enhanced meltability and processability, overcoming the limitations of previous recycled materials and enabling their effective incorporation into non-woven applications.
✦ Generated by Eureka AI based on patent content.
Abstract
According to some embodiments of the present disclosure, a fiber may comprise a visbroken post-consumer recycled (PCR) ethylene-based polymer having a density of 0.925 g / cm3 to 0.970 g / cm3 and a melt index (I2) of at least 5 dg / 10 min., as determined by ASTM D1238 at 190 °C and 2.16 kg.
Need to check novelty before this filing date? Find Prior Art