Ethylene polymer containing a reversible crosslinking agent
JP2025523011A5Pending Publication Date: 2026-07-13DOW GLOBAL TECHNOLOGIES LLC +1
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Patent Information
- Application Number
- JP2025501337
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2022-07-15
- Filing Date
- 2023-07-14
- Publication Date
- 2026-07-13
AI Technical Summary
Technical Problem
Crosslinked ethylene polymers cannot be reprocessed and recycled due to their permanent network structure, leading to environmental and sustainability concerns.
Method used
A crosslinkable polymer composition comprising an ethylene-based polymer, a free radical initiator, and 2,2,6,6-tetramethyl-4-piperidyl methacrylate disulfide (BiTEMPS methacrylate) that forms disulfide bonds, allowing for dynamic crosslinking and reprocessing by breaking and reforming these bonds at specific temperatures.
Benefits of technology
Enables the reprocessing and recycling of crosslinked ethylene polymers, maintaining mechanical properties while allowing for the formation of new polymer articles through repeated heating and cooling cycles.
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Figure 2024015570000001
Abstract
The present disclosure provides a crosslinkable polymer composition. In one embodiment, the crosslinkable polymer composition comprises an ethylene-based polymer, a free radical initiator, and 2,2,6,6-tetramethyl-4-piperidyl methacrylate disulfide (BiTEMPS methacrylate). The present disclosure provides a crosslinked composition. In one embodiment, the crosslinked composition comprises an ethylene-based polymer and 2,2,6,6-tetramethyl-4-piperidyl methacrylate disulfide (BiTEMPS methacrylate).
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