WO2026054780 - LOW CONDUCTIVITY HEAT TRANSFER FLUID WITH VAPOR PHASE CORROSION INHIBITION
National phase entry is expected:
Publication Number
WO/2026/054780
Publication Date
12.03.2026
International Application No.
PCT/US2024/045844
International Filing Date
09.09.2024
Title **
[English]
LOW CONDUCTIVITY HEAT TRANSFER FLUID WITH VAPOR PHASE CORROSION INHIBITION
[French]
FLUIDE DE TRANSFERT DE CHALEUR À FAIBLE CONDUCTIVITÉ AVEC INHIBITION DE LA CORROSION EN PHASE VAPEUR
Applicants **
CCI NORTH AMERICA CORPORATION
Inventors
WEIDE, Timo
SHIMURA, Naotaka
Application details
| Total Number of Claims/PCT | * |
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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.
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 1865 | |
| EPO | Filing, Examination, Granting | 8126 | |
| Japan | Filing, Examination, Granting | 2062 | |
| South Korea | Filing, Examination, Granting | 1791 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
18,584
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Abstract[English]
An improved Battery Electric Vehicle heat transfer fluids is made diluting a heat transfer fluid concentrate comprising greater than or equal to 85 weight percent of a freezing point depressant; 20 to 80 ppm of calcium ions; an azole compound; 100 to 250 ppm of an inorganic phosphate; and a polyelectrolyte polymer dispersant, wherein the heat transfer fluid concentrate has a pH of 7 to 9.0 and the weight ratio of polyelectrolyte polymer dispersant to calcium ions is 1 to 3 and the weight ratio of inorganic phosphate to calcium is 2 to 4. For use this concentrate is preferably diluted with deionized water usually 50/50. The addition of N-methyl-imidazole provides protection against vapor phase corrosion particularly for ferrous metals.[French]
L'invention concerne des fluides de transfert de chaleur améliorés pour véhicule électrique à batteries qui sont fabriqués en diluant un concentré de fluide de transfert de chaleur comprenant plus de 85 pour cent en poids d'un abaisseur de point de congélation ; 20 à 80 ppm d'ions calcium ; un composé azole ; 100 à 250 ppm d'un phosphate inorganique ; et un dispersant polymère de polyélectrolyte, le concentré de fluide de transfert de chaleur ayant un pH de 7 à 9,0 et le rapport en poids du dispersant polymère de polyélectrolyte aux ions calcium étant de 1 à 3 et le rapport en poids du phosphate inorganique au calcium étant de 2 à 4. Pour l'utilisation, ce concentré est de préférence dilué avec de l'eau désionisée, habituellement 50/50. L'ajout de N-méthyl-imidazole assure une protection contre la corrosion en phase vapeur, en particulier pour les métaux ferreux.