Method for reducing polyurethane content in polyurethane-containing recycled fabric
JP2025042597APending Publication Date: 2025-03-27TORAY INDUSTRIES INC
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Patent Information
- Application Number
- JP2024153904
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-09-14
- Filing Date
- 2024-09-06
- Publication Date
- 2025-03-27
Abstract
To provide a technology that sufficiently reduces a polyurethane content in a recovered fabric and enables creation of a polymer material with the same quality before and after chemical recycling.SOLUTION: There is provided a method for reducing a polyurethane content of a recovered fabric by contacting the recovered fabric having a polyurethane content of 0.3 wt.% or more and 15.0 wt.% or less with ethylene glycol at 150°C or more and 205°C or less for 5 minutes or more and less than 90 minutes.SELECTED DRAWING: None
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