WO2025210060 - AN EFFICIENT PROCESS FOR THE DEPOLYMERIZATION OF VINYL POLYMERS
National phase entry is expected:
Publication Number
WO/2025/210060
Publication Date
09.10.2025
International Application No.
PCT/EP2025/058918
International Filing Date
02.04.2025
Title **
[English]
AN EFFICIENT PROCESS FOR THE DEPOLYMERIZATION OF VINYL POLYMERS
[French]
PROCÉDÉ EFFICACE POUR LA DÉPOLYMÉRISATION DE POLYMÈRES VINYLIQUES
Applicants **
ETH ZURICH
Inventors
ANASTASAKI, Athina
WANG, Hyun Suk
Priority Data
24386041.8
04.04.2024
EP
Application details
| Total Number of Claims/PCT | * |
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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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* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2025 | |
| EPO | Filing, Examination, Granting | 8180 | |
| Japan | Filing, Examination, Granting | 2176 | |
| South Korea | Filing, Examination, Granting | 2051 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
19,172
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Abstract[English]
The present invention relates to a highly efficient process for the photo-initiated depolymerization of vinyl polymers in the presence of at least one chlorine-containing reagent, preferably at elevated temperatures. The invention further relates to the recycling of vinyl polymers comprising the process according to the invention as well as the use of chlorine-containing reagents for the depolymerization of vinyl polymers.[French]
La présente invention concerne un procédé hautement efficace pour la dépolymérisation photo-initiée de polymères vinyliques en présence d'au moins un réactif contenant du chlore, de préférence à des températures élevées. L'invention concerne en outre le recyclage de polymères vinyliques par l'intermédiaire du procédé selon l'invention ainsi que l'utilisation de réactifs contenant du chlore pour la dépolymérisation de polymères vinyliques.