WO2025243016 - AN UNCALCINED CATALYST ARTICLE PRECURSOR FOR A DIESEL OXIDATION CATALYST
National phase entry is expected:
Publication Number
WO/2025/243016
Publication Date
27.11.2025
International Application No.
PCT/GB2025/051087
International Filing Date
19.05.2025
Title **
[English]
AN UNCALCINED CATALYST ARTICLE PRECURSOR FOR A DIESEL OXIDATION CATALYST
[French]
PRÉCURSEUR D'ARTICLE CATALYSEUR NON CALCINÉ POUR CATALYSEUR D'OXYDATION DIESEL
Applicants **
JOHNSON MATTHEY PUBLIC LIMITED COMPANY
JOHNSON MATTHEY (SHANGHAI) CHEMICALS LIMITED
Inventors
HE, Jing
SHANG, Zhou
CHIFFEY, Andrew Francis
COOPER, Oliver James
GHOLAMI, Rahman
MOREAU, Francois Pierre Henri
PINTO, Jose Jorge Baeta Fontinha
Priority Data
PCT/CN2024/094208
20.05.2024
CN
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
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| 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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| 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 | 2070 | |
| EPO | Filing, Examination, Granting | 8233 | |
| Japan | Filing, Examination, Granting | 2153 | |
| South Korea | Filing, Examination, Granting | 2071 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
19,267
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Abstract[English]
An uncalcined catalyst article precursor for a diesel oxidation catalyst (DOC), the catalyst article precursor comprises a substrate comprising a plurality of channels extending from an inlet face to an outlet face, and a first washcoat layer provided in and/or on walls of the channels of the substrate, comprising Pt, or Pt and Pd in a weight ratio of Pt:Pd of greater than 2:1, a support material and a high molecular weight polymer, wherein the high molecular weight polymer is a PVP homo- or co-polymer and having a molecular weight of greater than 1,000,000 g/mol to 1,750,000 g/mol. [No Figure][French]
L'invention concerne un précurseur d'article catalyseur non calciné pour un catalyseur d'oxydation diesel (DOC), le précurseur d'article catalyseur comprend un substrat comprenant une pluralité de canaux s'étendant d'une face d'entrée à une face de sortie, et une première couche de revêtement prévue dans et/ou sur des parois des canaux du substrat, comprenant du Pt, ou du Pt et du Pd dans un rapport pondéral de Pt:Pd supérieur à 2:1, un matériau de support et un polymère de poids moléculaire élevé, le polymère de poids moléculaire élevé étant un homopolymère ou un copolymère de PVP et présentant un poids moléculaire supérieur à 1 000 000 g/mol à 1 750 000 g/mol. [Pas de figure]