WO2024160325 - A METHOD FOR RETRIEVING A RECYCLABLE FIBRE MAT FROM AN EPOXY COMPOSITE STRUCTURE
National phase entry is expected:
Publication Number
WO/2024/160325
Publication Date
08.08.2024
International Application No.
PCT/DK2024/050016
International Filing Date
31.01.2024
Title **
[English]
A METHOD FOR RETRIEVING A RECYCLABLE FIBRE MAT FROM AN EPOXY COMPOSITE STRUCTURE
[French]
PROCÉDÉ DE RÉCUPÉRATION D'UN MAT DE FIBRES RECYCLABLES ÉMANANT D'UNE STRUCTURE COMPOSITE ÉPOXYDIQUE
Applicants **
VESTAS WIND SYSTEMS A/S
Hedeager 42
8200 Aarhus N, DK
Inventors
HANSEN, Jesper Rømer
c/o Vestas Wind Systems A/S
Hedeager 42
8200 Aarhus N, DK
BIRKBAK, Mie Elholm
c/o Vestas Wind Systems A/S
Hedeager 42
8200 Aarhus N, DK
Priority Data
PA202370052
31.01.2023
DK
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
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| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
| Pages for Publication | * |
| Number of Pages with Drawings | * |
| Pages of Specification | * |
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International Searching Authority |
EPO
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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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| Translation |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing | 1162 | |
| EPO | Filing, Examination | 5258 | |
| Japan | Filing | 590 | |
| South Korea | Filing | 574 | |
| USA | Filing, Examination | 2710 |
Total: 10294 USD
The term for entry into the National Phase has expired. This quotation is for informational purposes only
Abstract[English]
A method for retrieving a recyclable fibre mat (13) from an epoxy composite structure (6, 6a) is disclosed An epoxy composite structure (6, 6a), e.g. a wind turbine blade (6), made from a composite material comprising at least one fibre mat (13) embedded in a matrix of epoxy resin (14) is provided. The epoxy composite structure (6, 6a) is exposed to a release agent (11), e.g. comprising acid, such as formic acid, causing disintegration of the epoxy composite structure (6, 6a). The at least one fibre mat (13) is retrieved from the disintegrated epoxy composite structure (6, 6a). A recycled fibre mat (13) comprising epoxy particles chemically and/or mechanically bonded to the surface of the fibre mat is also disclosed.[French]
Est divulgué ici un procédé de récupération d'un mat de fibres recyclables (13) émanant d'une structure composite époxydique (6, 6a). L'invention concerne une structure composite époxydique (6, 6a), par exemple une pale d'éolienne (6), constituée d'un matériau composite comprenant au moins un mat de fibres (13) intégré dans une matrice de résine époxydique (14). La structure composite époxydique (6, 6a) est exposée à un agent démoulant (11), comprenant par exemple un acide, tel que de l'acide formique, provoquant le délitement de la structure composite époxydique (6, 6a). L'au moins un mat de fibres (13) est récupéré à partir de la structure composite époxydique (6, 6a) délitée. Est également divulgué un mat de fibres recyclées (13) comprenant des particules époxydiques liées chimiquement et/ou mécaniquement à la surface du mat de fibres.