WO2026018031 - DIESEL OXIDATION CATALYST AND METHOD OF MANUFACTURE THEREOF
National phase entry is expected:
Publication Number
WO/2026/018031
Publication Date
22.01.2026
International Application No.
PCT/GB2025/051615
International Filing Date
18.07.2025
Title **
[English]
DIESEL OXIDATION CATALYST AND METHOD OF MANUFACTURE THEREOF
[French]
CATALYSEUR D'OXYDATION DIESEL ET SON PROCÉDÉ DE FABRICATION
Applicants **
JOHNSON MATTHEY PUBLIC LIMITED COMPANY
Inventors
CHANDLER, Guy Richard
CHIFFEY, Andrew Francis
CORPS, Jack
HATCHER, Daniel Stuart
MOREAU, Francois Pierre Henri
O'BRIEN, Matthew
Priority Data
24189915.2
19.07.2024
EP
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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| Number of Office Actions | * |
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International Searching Authority |
EPO
* |
| 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
* |
| Applicant's Legal Status |
Legal Entity
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| * | |
| * | |
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| * | |
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| Entry into National Phase under |
Chapter I
* |
| Patent Delivery |
Send the Letters Patent by Courier
* |
| 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 | 2206 | |
| EPO | Filing, Examination, Granting | 8825 | |
| Japan | Filing, Examination, Granting | 2171 | |
| South Korea | Filing, Examination, Granting | 2057 | |
| USA | Filing, Examination, Granting | 5340 |
Total:
20,599
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Abstract[English]
A diesel oxidation catalyst comprises one or more washcoat layers disposed on a substrate, wherein at least one of the one or more washcoat layers comprises a doped zirconia-based support material which is a zirconia-based support material provided with two or more dopants, wherein the zirconia-based support material comprises, on an oxide basis: at least 80 wt.% Zr, based on the total weight of the zirconia-based support material; at least 2 wt.% Nd, based on the total weight of the zirconia-based support material; and, optionally, one or more of Y, Ce, Hf and La, and wherein the two or more dopants comprise: from 5 to 15 wt.% Ce and from 5 to 30 wt.% Mn, on an oxide basis, based on the total weight of the doped zirconia-based support material.[French]
L'invention concerne un catalyseur d'oxydation diesel comprenant une ou plusieurs couches d'imprégnateur disposées sur un substrat, au moins une des couches d'imprégnateur comprenant un matériau de support à base d'oxyde de zirconium dopé qui est un matériau de support à base d'oxyde de zirconium pourvu d'au moins deux dopants, le matériau de support à base d'oxyde de zirconium comprenant, sur une base d'oxyde : au moins 80 % en poids de Zr sur la base du poids total du matériau de support à base d'oxyde de zirconium ; au moins 2 % en poids de Nd sur la base du poids total du matériau de support à base d'oxyde de zirconium ; et, éventuellement, un ou plusieurs éléments parmi Y, Ce, Hf et La, lesdits deux dopants comprenant : de 5 à 15 % en poids de Ce et de 5 à 30 % en poids de Mn, sur une base d'oxyde, sur la base du poids total du matériau de support à base d'oxyde de zirconium dopé.