Fluorinated olefins as working fluids and methods of using same

Patent metadata

Field	Value
Publication number	US-10557069-B2
Application number	US-201916291098-A
Country	US
Kind code	B2
Filing date	Mar 4, 2019
Priority date	Dec 20, 2013
Publication date	Feb 11, 2020
Grant date	Feb 11, 2020

Abstract

A working fluid that includes a fluorinated olefin compound represented by the following general formula (I):

First claim

What is claimed is:

1. A fire extinguishing composition comprising:
(a) 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 1-4 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; and
(b) at least one co-extinguishing agent comprising one or more hydrofluorocarbons, hydrochlorofluorocarbons, perfluorocarbons, perfluoropolyethers, hydrofluoroethers, hydrofluoropolyethers, chlorofluorocarbons, bromofluorocarbons, bromochlorofluorocarbons, iodofluorocarbons, hydrobromofluorocarbons, fluorinated ketones, hydrobromocarbons, fluorinated olefins, hydrofluoroolefins, fluorinated sulfones, fluorinated vinylethers, and mixtures thereof,
wherein (a) and (b) are present in an amount sufficient to suppress or extinguish a fire.

2. A fire extinguishing composition according to claim 1 , wherein (a) and (b) are in a weight ratio of from about 9:1 to about 1:9.

3. A method of extinguishing a fire comprising: applying to the fire a fire extinguishing composition comprising:
(a) 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 1-4 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; and
(b) at least one co-extinguishing agent comprising one or more hydrofluorocarbons, hydrochlorofluorocarbons, perfluorocarbons, perfluoropolyethers, hydrofluoroethers, hydrofluoropolyethers, chlorofluorocarbons, bromofluorocarbons, bromochlorofluorocarbons, iodofluorocarbons, hydrobromofluorocarbons, fluorinated ketones, hydrobromocarbons, fluorinated olefins, hydrofluoroolefins, fluorinated sulfones, fluorinated vinylethers, and mixtures thereof; and
suppressing the fire.

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

• C07D207/04

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

• F01K25/08

  using special vapours · CPC title

• C07C211/21 Primary

  Monoamines · CPC title

• C09K5/045 Primary

  containing only fluorine as halogen · CPC title