Fluorinated olefins as working fluids and methods of using same

Patent metadata

Field	Value
Publication number	US-9957428-B2
Application number	US-201415105103-A
Country	US
Kind code	B2
Filing date	Dec 17, 2014
Priority date	Dec 20, 2013
Publication date	May 1, 2018
Grant date	May 1, 2018

Abstract

A working fluid that includes a fluorinated olefin compound represented by the following general formula (I). In some embodiments, an apparatus for heat transfer is provided. The apparatus includes a device and a mechanism for transferring heat to or from the device. In some embodiments, a fire extinguishing composition is provided. In some embodiments, an apparatus for converting thermal energy into mechanical energy in a Rankine cycle is provided.

First claim

What is claimed is:

1. 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 compound represented by the following general formula (I):

wherein (i) Rf 1 and Rf 2 are independently linear or branched perfluoroalkyl groups having with 1-8 carbon atoms and optionally comprise at least one catenated heteroatom, or (ii) Rf 1 and Rf 2 are bonded together to form a ring structure having 4-6 carbon atoms and optionally comprise one or more catenated heteroatoms;
with the proviso that if Rf 1 and Rf 2 are bonded together to form a ring structure comprising a nitrogen heteroatom, said nitrogen heteroatom is tertiary and is bonded to a perfluoroalkyl group having 1-3 carbon atoms.

2. An apparatus for heat transfer according to claim 1 , 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.

3. An apparatus according to claim 1 , wherein the mechanism for transferring heat is a component in a system for maintaining a temperature or temperature range of an electronic device.

4. 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 compound represented by the following general formula (I):

wherein (i) Rf 1 and Rf 2 are independently linear or branched perfluoroalkyl groups having with 1-8 carbon atoms and optionally comprise at least one catenated heteroatom, or (ii) Rf 1 and Rf 2 are bonded together to form a ring structure having 4-6 carbon atoms and optionally comprise one or more catenated heteroatoms;
with the proviso that if Rf 1 and Rf 2 are bonded together to form a ring structure comprising a nitrogen heteroatom, said nitrogen heteroatom is tertiary and is bonded to a perfluoroalkyl group having 1-3 carbon atoms.

Assignees

• 3M Innovative Properties Co

Inventors

• Bulinski Michael J
• Costello Michael G
• Owens John G
• Rice Michael J

Classifications

• C11D3/30

  Amines; Substituted amines {; Quaternized amines} · CPC title

• C09D7/40

  Additives · CPC title

• C08J2375/04

  Polyurethanes · CPC title

• A62D1/0092

  Gaseous extinguishing substances, e.g. liquefied gases, carbon dioxide snow (freons or halons A62D1/005) · CPC title

• C11D1/74

  Carboxylates or sulfonates {esters} of polyoxyalkylene glycols · CPC title