# US 2022/0033700 A1 · Non-water coolant composition and cooling system

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- Number: US 2022/0033700 A1
- Document ID: US20220033700A1
- Status: Published application
- Kind: A1
- Application number: 17/345,053
- Filed: 2021-06-11
- Published: 2022-02-03
- Earliest claimed: 2020-07-29
- Assignees: Toyota Jidosha Kabushiki Kaisha
- Applicants: Toyota Jidosha Kabushiki Kaisha
- Inventors: Yasuaki KODAMA; Masao WATANABE; Daisuke TOKOZAKURA
- Web page: https://patentgrep.com/patent/US20220033700A1

## CPC

- C09K 5/10: Liquid materials
- H05K 7/20872: {Liquid coolant without phase change}
- H05K 7/20927: {Liquid coolant without phase change}
- C09K 2205/132: containing nitrogen
- Y02E 60/10: Energy storage using batteries
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

It is an object of the present disclosure to provide a non-aqueous coolant composition that is excellent in insulation property and has improved heat transfer characteristics. The embodiment is a non-water coolant composition that comprises at least one amine compound as a non-aqueous base. The amine compound is at least one selected from the group consisting of an aliphatic amine compound, an aromatic amine compound, an alkanolamine compound, an amido amine compound, an amine oxide compound, a heterocyclic amine compound, and an ether amine compound.

## Claims

### Claim 1

A non-water coolant composition comprising
at least one amine compound as a non-aqueous base,
wherein the amine compound is at least one selected from the group consisting of an aliphatic amine compound, an aromatic amine compound, an alkanolamine compound, an amido amine compound, an amine oxide compound, a heterocyclic amine compound, and an ether amine compound.

### Claim 2 (depends on 1)

The non-water coolant composition according to claim 1,
wherein the amine compound is the aliphatic amine compound.

### Claim 3 (depends on 2)

The non-water coolant composition according to claim 2,
wherein the aliphatic amine compound is a compound indicated by NR1R2R3 [in the formula, R1 is a C6-C24-alkyl, and R2 and R3 are each independently hydrogen atom or a C1-C4-alkyl].

### Claim 4 (depends on 3)

The non-water coolant composition according to claim 3,
wherein R1 is a C8-C20-alkyl.

### Claim 5 (depends on 3)

The non-water coolant composition according to claim 3,
wherein R2 and R3 are each independently a C1-C3-alkyl.

### Claim 6 (depends on 1)

The non-water coolant composition according to claim 1,
wherein the amine compound has a content of 10 mass % or more.

### Claim 7 (depends on 1)

The non-water coolant composition according to claim 1, further comprising
at least one base oil selected from a mineral oil and a synthetic oil.

### Claim 8 (depends on 7)

The non-water coolant composition according to claim 7,
wherein the amine compound has a content of 10 mass % to 90 mass %, and
wherein the base oil has a content of 10 mass % to 90 mass %.

### Claim 9 (depends on 7)

The non-water coolant composition according to claim 7,
wherein the amine compound has a content of 30 mass % to 70 mass %, and
wherein the base oil has a content of 30 mass % to 70 mass %.

### Claim 10 (depends on 7)

The non-water coolant composition according to claim 7,
wherein the amine compound and the base oil have a total content of 80 mass % to 100 mass %.

### Claim 11 (depends on 1)

The non-water coolant composition according to claim 1,
wherein the non-water coolant composition has a conductivity at 20° C. is 0.1 μS/cm or less.

### Claim 12 (depends on 1)

A cooling system, comprising the non-water coolant composition according to claim 1 as a refrigerant.

### Claim 13 (depends on 12)

The cooling system according to claim 12,
wherein the cooling system is for cooling a heat generation apparatus mounted on a vehicle including a travelling motor.

### Claim 14 (depends on 13)

The cooling system according to claim 13,
wherein the heat generation apparatus is an inverter, a converter, a generator, a motor, or a battery.

### Claim 15 (depends on 13)

The cooling system according to claim 13,
wherein the heat generation apparatus includes a power card, and the non-water coolant composition is in physical contact with the power card.