WO2025098866 - VERFAHREN ZUR HERSTELLUNG VON DIETHYLHYDROXYMETHYLPHOSPHONAT
National phase entry is expected:
Publication Number
WO/2025/098866
Publication Date
15.05.2025
International Application No.
PCT/EP2024/080792
International Filing Date
31.10.2024
Title **
[German]
VERFAHREN ZUR HERSTELLUNG VON DIETHYLHYDROXYMETHYLPHOSPHONAT
[English]
PROCESS FOR PRODUCING DIETHYL HYDROXYMETHYL PHOSPHONATE
[French]
PROCÉDÉ DE PRODUCTION DE DIÉTHYL HYDROXYMÉTHYL PHOSPHONATE
Applicants **
LANXESS DEUTSCHLAND GMBH
Inventors
HANSEL, Jan-Gerd
Priority Data
23207830.3
06.11.2023
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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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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* 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 | 1967 | |
| EPO | Filing, Examination, Granting | 8126 | |
| Japan | Filing, Examination, Granting | 2093 | |
| South Korea | Filing, Examination, Granting | 1945 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
18,871
The term for entry into the National Phase has expired. This quotation is for informational purposes only
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Abstract[German]
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von Diethylhydroxymethylphosphonat mit hoher Reinheit durch Umsetzung von Diethylphosphit mit Paraformaldehyd, in Gegenwart von 1 bis 3 mol-% Natriumcarbonat.[English]
The present invention relates to a process for producing diethyl hydroxymethyl phosphonate of high purity by reacting diethyl phosphite with paraformaldehyde in the presence of 1 to 3 mol.-% sodium carbonate.[French]
La présente invention concerne un procédé de production de diéthyl hydroxyméthyl phosphonate de pureté élevée par réaction de diéthyl phosphite avec du paraformaldéhyde en présence de 1 à 3 % mol. de carbonate de sodium.