WO2025233881 - METHODS FOR MAKING TRIHYDROCARBYL PHOSPHINES, PRE-METALLATION COMPOUNDS AND SINGLE SITE POLYMERIZATION CATALYSTS
National phase entry is expected:
Publication Number
WO/2025/233881
Publication Date
13.11.2025
International Application No.
PCT/IB2025/054840
International Filing Date
08.05.2025
Title **
[English]
METHODS FOR MAKING TRIHYDROCARBYL PHOSPHINES, PRE-METALLATION COMPOUNDS AND SINGLE SITE POLYMERIZATION CATALYSTS
[French]
PROCÉDÉS DE FABRICATION DE TRIHYDROCARBYLE PHOSPHINES, COMPOSÉS DE PRÉ-MÉTALLATION ET CATALYSEURS DE POLYMÉRISATION À SITE UNIQUE
Applicants **
NOVA CHEMICALS (INTERNATIONAL) S.A.
Inventors
GAO, Xiaoliang
FAN, Cheng
CARTER, Charles
CHIU, Frederick
GOETTEL, James T.
MORRISON, Darryl
Priority Data
63/645,460
10.05.2024
US
Application details
| Total Number of Claims/PCT | * |
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| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
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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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| * | |
| * | |
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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 | 2894 | |
| EPO | Filing, Examination, Granting | 18288 | |
| Japan | Filing, Examination, Granting | 2712 | |
| South Korea | Filing, Examination, Granting | 3086 | |
| USA | Filing, Examination, Granting | 7140 |
Total:
34,120
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Abstract[English]
Provided are synthetic methods to make trihydrocarbyl phosphines and phosphinimine pre-metallation compounds which may be used to make single site polymerization catalysts.[French]
L'invention concerne des procédés de synthèse pour fabriquer des trihydrocarbylphosphines et des composés de pré-métallation de phosphinimine qui peuvent être utilisés pour fabriquer des catalyseurs de polymérisation à site unique.