WO2026018027 - DIESEL OXIDATION CATALYST ARTICLE AND METHOD OF MANUFACTURE THEREOF
National phase entry is expected:
Publication Number
WO/2026/018027
Publication Date
22.01.2026
International Application No.
PCT/GB2025/051611
International Filing Date
18.07.2025
Title **
[English]
DIESEL OXIDATION CATALYST ARTICLE AND METHOD OF MANUFACTURE THEREOF
[French]
ARTICLE CATALYSEUR D'OXYDATION DIESEL ET SON PROCÉDÉ DE FABRICATION
Applicants **
JOHNSON MATTHEY PUBLIC LIMITED COMPANY
Inventors
AYDOGAN, Ugursan
CHANDLER, Guy Richard
CHIFFEY, Andrew Francis
COLLIER, Jillian
CORPS, Jack
GEORGIEVA, Veselina Mihaylova
HATCHER, Daniel Stuart
MILLINGTON, Paul James
MOREAU, Francois Pierre Henri
O'BRIEN, Matthew
PASCUI, Andrea Eva
RUGGERI, Maria Pia
THOMPSETT, David
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 | * |
| Pages for Publication | * |
| Number of Pages with Drawings | * |
| Pages of Specification | * |
| * | |
| Number of Office Actions | * |
| * | |
International Searching Authority |
EPO
* |
| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
* |
| Type of Assignment |
The Standard Agent's Assignment
* |
| Applicant's Legal Status |
Legal Entity
* |
| * | |
| * | |
| * | |
| * | |
| * | |
| Entry into National Phase under |
Chapter I
* |
| Patent Delivery |
Send the Letters Patent by Courier
* |
| Translation |
|
* 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 | 2238 | |
| EPO | Filing, Examination, Granting | 8891 | |
| Japan | Filing, Examination, Granting | 2153 | |
| South Korea | Filing, Examination, Granting | 2071 | |
| USA | Filing, Examination, Granting | 5940 |
Total:
21,293
Contact Us
Abstract[English]
A diesel oxidation catalyst article comprises: a substrate; a first washcoat layer disposed on the substrate; and a second washcoat layer disposed on the substrate; wherein the first washcoat layer comprises: a first platinum group metal (PGM) component comprising Pt and/or Pd; and a support material comprising alumina; and wherein the second washcoat layer comprises: a second PGM component comprising Pd and, optionally, Pt; and a Mn-doped zirconia-based support material, which is a zirconia-based support material having a crystalline phase comprising at least 60 wt.% total of one or more cubic and/or tetragonal phases and further provided with at least one dopant, the at least one dopant comprising Mn; wherein the zirconia-based support material comprises, on an oxide basis: at least 50 wt.% Zr, based on the total weight of the zirconia-based support material; and one or more of La, Y, Nd, Ce, Pr and Hf.[French]
La présente invention concerne un article catalyseur d'oxydation diesel comprenant : un substrat ; une première couche d'imprégnation disposée sur le substrat ; et une seconde couche d'imprégnation disposée sur le substrat ; la première couche d'imprégnation comprenant : un premier composant de métaux du groupe du platine (MGP) comprenant du Pt et/ou du Pd ; et un matériau de support comprenant de l'alumine ; et la seconde couche d'imprégnation comprenant : un second composant de MGP comprenant du Pd et, éventuellement, du Pt ; et un matériau de support à base de zircone dopé au Mn, qui est un matériau de support à base de zircone ayant une phase cristalline comprenant au moins 60 % en poids total d'une ou de plusieurs phases cubiques et/ou tétragonales et pourvu en outre d'au moins un dopant, le ou les dopants comprenant du Mn ; le matériau de support à base de zircone comprenant, sur une base d'oxyde : au moins 50 % en poids de Zr, sur la base du poids total du matériau de support à base de zircone ; et un ou plusieurs éléments parmi La, Y, Nd, Ce, Pr et Hf.