Nitrogen containing hydrofluoroethers and methods of using same

Patent metadata

Field	Value
Publication number	US-10308592-B2
Application number	US-201515511259-A
Country	US
Kind code	B2
Filing date	Sep 18, 2015
Priority date	Sep 23, 2014
Publication date	Jun 4, 2019
Grant date	Jun 4, 2019

Abstract

A hydrofluoroether compound is represented by the following general formula (1): wherein n is 1-2.

First claim

What is claimed is:

1. A working fluid comprising a hydrofluoroether compound, the hydrofluoroether compound represented by the following general formula (1):

wherein n is 1-2, and each occurrence of Rf 1 and Rf 2 is:
(i) independently a linear or branched perfluoroalkyl group having 1-8 carbon and optionally comprises one or more catenated heteroatoms; or
(ii) bonded together to form a ring structure having 4-8 carbon atoms and optionally comprises one or more catenated heteroatoms; and

Rfh is, when n=1, a substituted or unsubstituted, monovalent, hydrocarbon group having 1-12 carbon atoms optionally comprising one or more catenary heteroatoms and, when n=2, a substituted or unsubstituted, divalent, hydrocarbon group having 1-12 carbon atoms optionally comprising one or more catenary heteroatoms,
wherein the hydrofluoroether compound is present in the working fluid at an amount of at least 50% by weight based on the total weight of the working fluid.

2. The working fluid according to claim 1 , wherein each occurrence of Rf 1 and Rf 2 is:
(i) independently a linear or branched perfluoralkyl group having 1-4 carbons and optionally comprises one or more catenated heteroatoms; or (ii) bonded together to form a ring structure having 4-6 or carbon atoms and optionally comprises one or more catenated heteroatoms.

3. The working fluid according to claim 1 , wherein Rfh is substituted with halogen atoms.

4. The working fluid according to claim 1 , wherein Rfh is substituted with fluorine atoms.

5. The working fluid according to claim 1 , wherein the hydrofluoroether compound has a degree of fluorination that is at least 60%.

6. A hydrofluoroether compound having one or more of the following formulas:

7. An apparatus for heat transfer comprising:
a device; and
a mechanism for transferring heat to or from the device, the mechanism comprising a heat transfer fluid that comprises a working fluid according to claim 1 .

8. An apparatus for heat transfer according to claim 7 , wherein the device is selected from a microprocessor, a semiconductor wafer used to manufacture a semiconductor device, a power control semiconductor, an electrochemical cell, an electrical distribution switch gear, a power transformer, a circuit board, a multi-chip module, a packaged or unpackaged semiconductor device, a fuel cell, and a laser.

9. An apparatus for heat transfer according to claim 7 , wherein the mechanism for transferring heat is a component in a system for maintaining a temperature or temperature range of an electronic device.

10. A method of transferring heat comprising:
providing a device; and

transferring heat to or from the device using a heat transfer fluid that comprises a working fluid according to claim 1 .

Assignees

• 3M Innovative Properties Co

Inventors

• Lamanna William M
• Bulinski Michael J
• Smith Kiah A
• Costello Michael G
• Teverovskiy Georgiy

Classifications

• H10W40/40

  involving heat exchange by flowing fluids · CPC title

• H01M10/0569

  characterised by the solvents · CPC title

• C08J2323/04

  Homopolymers or copolymers of ethene · CPC title

• C08J2325/04

  Homopolymers or copolymers of styrene · CPC title

• C07D241/04

  having no double bonds between ring members or between ring members and non-ring members · CPC title