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US 2026/0308436 A1Published application
Propylene Carbonate Based Heat Transfer Fluid
AssigneeCCI North America Corporation
InventorsTimo Weide, Raul Gonzalez
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Abstract
A water-free cooling fluid based on alkene carbonates has low toxicity, low electrical conductivity and high heat capacity. The fluid provides corrosion protection for cooled systems and is liquid to −30° C. or lower. Moreover, the fluid shows low viscosity at low temperatures. Some formulations contain dehydrating orthoesters.
Claims12
A ready-to-use heat transfer fluid for direct cooling of electric systems comprising:
- an A1 Component and at least one of an A2 and an A3 component,
- wherein the A1 Component is one or more alkylene carbonate derivatives of formula,
- wherein R is hydrogen or a C1- to C4-alkyl, and n is 1 to 3,
- wherein the A2 Component is one or more alkylene glycol ether derivatives of formula (II),
- wherein R1 is hydrogen or a C1- to C6-alkyl, R2 is a C1- to C6-alkyl, or aryl, R3 is hydrogen or methyl, and n is a number from 3.0 to 4.0, and wherein a derivative of formula can also be phenoxyethanol and/or phenoxypropanol, and
- wherein the A3 Component is selected from the group consisting of monoethylene glycol, monopropylene glycol, 1,3-propandiol, 1,4-butandiol, glycerol and mixtures thereof.
3 more elements
Dependencies are inferred from the claim text.