WO2024157121 - DEVOLATILIZATION OF POLYOLEFIN POLYMERS
National phase entry is expected:
Publication Number
WO/2024/157121
Publication Date
02.08.2024
International Application No.
PCT/IB2024/050463
International Filing Date
17.01.2024
Title **
[English]
DEVOLATILIZATION OF POLYOLEFIN POLYMERS
[French]
DÉVOLATILISATION DE POLYMÈRES DE POLYOLÉFINE
Applicants **
NOVA CHEMICALS (INTERNATIONAL) S.A.
Inventors
NOORJAHAN, Abolfazl
BROWN, Stephen
DADGOSTAR, Nafiseh
CLAVELLE, Eric
Priority Data
63/481,713
26.01.2023
US
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
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| Pages of Specification | * |
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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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| 译文 |
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** 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 | 2467 | |
| EPO | Filing, Examination, Granting | 15370 | |
| Japan | Filing, Examination, Granting | 2587 | |
| South Korea | Filing, Examination, Granting | 2951 | |
| USA | Filing, Examination, Granting | 6540 |
Total:
29,915
The term for entry into the National Phase has expired. This quotation is for informational purposes only
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Abstract[English]
A method and a system for devolatilizing a polymer are provided. An exemplary method includes flashing a polymer solution across a first pressure control valve into a first low-pressure separation vessel to form a more concentrated polymer solution from the first low-pressure separation vessel, and flashing the more concentrated polymer solution across a second pressure control valve into a second low-pressure separation vessel to form an outlet stream from the second low-pressure separation vessel.[French]
L'invention concerne un procédé et un système de dévolatilisation d'un polymère. Un procédé donné à titre d'exemple consiste à procéder à une évaporation éclair d'une solution de polymère dans une première vanne de régulation de pression et à la faire pénétrer dans une première cuve de séparation à basse pression pour former une solution de polymère plus concentrée à partir de la première cuve de séparation à basse pression, et à procéder à une évaporation éclair de la solution de polymère plus concentrée dans une seconde vanne de régulation de pression et à la faire pénétrer dans une seconde cuve de séparation à basse pression pour former un flux de sortie à partir de la seconde cuve de séparation à basse pression.