WO2026131682 - METHOD FOR SELECTIVELY DISSOLVING POLYURETHANE FROM A TEXTILE
National phase entry is expected:
Publication Number
WO/2026/131682
Publication Date
25.06.2026
International Application No.
PCT/EP2025/087159
International Filing Date
15.12.2025
Title **
[English]
METHOD FOR SELECTIVELY DISSOLVING POLYURETHANE FROM A TEXTILE
[French]
PROCÉDÉ DE DISSOLUTION SÉLECTIVE DE POLYURÉTHANE À PARTIR D'UN TEXTILE
Applicants **
UNIVERSITEIT GENT
Inventors
DE MEESTER, Steven
ÜGDÜLER, Sibel
LUNA BARRIOS, Emelin Yhoany
Priority Data
24222187.7
20.12.2024
EP
Application details
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International Searching Authority |
EPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2031 | |
| EPO | Filing, Examination, Granting | 8218 | |
| Japan | Filing, Examination, Granting | 2225 | |
| South Korea | Filing, Examination, Granting | 2097 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
19,311
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Abstract[English]
The invention relates to a method for selectively dissolving polyurethane from a textile. The method comprises the steps of - providing a textile comprising polyurethane and/or polyurethane-based fibers and/or comprising a polyurethane and/or a polyurethane-based coating; - contacting the textile with a solvent to dissolve the polyurethane fibers and/or polyurethane- based fibers and/or to dissolve the polyurethane coating and/or the polyurethane-based coating thereby forming a solution, the solvent comprising a urea-based compound and/or a thiourea-based compound. Furthermore, the invention relates to a solvent mixture suitable for selectively dissolving polyurethane from a textile comprising polyurethane and/or polyurethane-based fibers or from a textile comprising a polyurethane and/or a polyurethane-based coating.[French]
L'invention concerne un procédé de dissolution sélective de polyuréthane à partir d'un textile. Le procédé comprend les étapes consistant à - fournir un textile comprenant des fibres de polyuréthane et/ou à base de polyuréthane et/ou comprenant un revêtement de polyuréthane et/ou à base de polyuréthane ; - mettre en contact le textile avec un solvant pour dissoudre les fibres de polyuréthane et/ou les fibres à base de polyuréthane et/ou pour dissoudre le revêtement de polyuréthane et/ou le revêtement à base de polyuréthane, ce qui permet de former une solution, le solvant comprenant un composé à base d'urée et/ou un composé à base de thiourée. En outre, l'invention concerne un mélange de solvants approprié pour dissoudre sélectivement du polyuréthane à partir d'un textile comprenant des fibres de polyuréthane et/ou à base de polyuréthane ou à partir d'un textile comprenant un revêtement de polyuréthane et/ou à base de polyuréthane.