WO2025022090 - METHOD FOR THE MANUFACTURE OF A CATALYTIC FILTER
National phase entry:
Publication Number
WO/2025/022090
Publication Date
30.01.2025
International Application No.
PCT/GB2024/051861
International Filing Date
17.07.2024
Title **
[English]
METHOD FOR THE MANUFACTURE OF A CATALYTIC FILTER
[French]
PROCÉDÉ DE FABRICATION D'UN FILTRE CATALYTIQUE
Applicants **
JOHNSON MATTHEY PUBLIC LIMITED COMPANY
Inventors
CHAVDA, Ketan Ravi
CORRIGAN, Christopher
HARDSTONE, Katharine Ann
HOTCHKISS, Thomas
PRICE, Emily Rose
Priority Data
2311243.6
21.07.2023
GB
2407862.8
03.06.2024
GB
Application details
| Total Number of Claims/PCT | * |
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| 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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| 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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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2139 | |
| EPO | Filing, Examination, Granting | 9127 | |
| Japan | Filing, Examination, Granting | 2215 | |
| South Korea | Filing, Examination, Granting | 2225 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
20,446
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 for the manufacture of a catalytic filter for an exhaust gas treatment system comprises: i) providing a porous filter body; ii) providing a washcoat comprising: (a) one or more platinum group metals (PGM); (b) a support material; and (c) a surfactant; iii) coating the filter body with the washcoat to form a coated filter body; and iv) calcining the coated filter body to form the catalytic filter, and wherein the surfactant is a non-ionic, silicon-free, organic surfactant.[French]
L'invention concerne un procédé de fabrication d'un filtre catalytique destiné à un système de traitement de gaz d'échappement comprenant les étapes suivantes : i) fourniture d'un corps de filtre poreux ; ii) fourniture d'une couche d'imprégnation comprenant : (a) un ou plusieurs métaux du groupe du platine (PGM) ; (b) un matériau de support ; et (c) un tensioactif ; iii) revêtement du corps de filtre avec le revêtement afin de former un corps de filtre revêtu ; et iv) calcination du corps de filtre revêtu afin de former le filtre catalytique, et le tensioactif représentant un tensioactif organique, non ionique, exempt de silicium.