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US 2023/0087560 A1Published application
Hydrofluorethers and methods of using same
Assignee3M Innovative Properties Company
InventorsWilliam M. Lamanna, Klaus Hintzer, Markus Hirschberg, David J. Lundberg
Life of this patent
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Abstract
A compound having structural formula (II): where R2 is H, CH3, CF3, CH2CF2CF2H, or CH2CF2CF2CF2H; where R2f is a perfluoroalkyl group having 1-4 carbon atoms, optionally comprising either or both of a catenated nitrogen heteroatom and a catenated oxygen heteroatom; where R2f′ is CF3 or CF2CF3; and where R2f″ is CF3 or CF2CF3; with the proviso that when R2f′ is CF3, then R2f″ is CF3, and when R2 is H or CH3, then R2f is not CF3.
Claims21
A compound having structural formula (II):
- where R2 is H, CH3, CF3, CH2CF2CF2H, or CH2CF2CF2CF2CF2H;
- where R2f is a perfluoroalkyl group having 1-4 carbon atoms, optionally comprising either or both of a catenated nitrogen heteroatom and a catenated oxygen heteroatom;
- where R2f′ is CF3 or CF2CF3;
- and
- where R2f″ is CF3 or CF2CF3;
- with the proviso that when R2f′ is CF3, then R2f″ is CF3, and when R2 is H or CH3, then R2f is not CF3.
3 more elements
An apparatus for heat transfer comprising:
- a device;
- and
- a mechanism for transferring heat to or from the device, the mechanism comprising a working fluid that comprises a compound having structural formula (I):
- where RH is CH3, CH2CH3, or a partially fluorinated alkyl group having 1-5 carbon atoms;
- where Rf is a perfluoroalkyl group having 1-9 carbon atoms, optionally comprising either or both of a catenated nitrogen heteroatom and a catenated oxygen heteroatom, and optionally comprising a 5- or 6-membered ring;
- and
- where Rf′ and Rf″ are, independently, perfluoroalkyl groups having 1-2 carbon atoms.
4 more elements
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 having structural formula (I):
- where RH is CH3, CH2CH3, or a partially fluorinated alkyl group having 1-5 carbon atoms;
- where Rf is a perfluoroalkyl group having 1-9 carbon atoms, optionally comprising either or both of a catenated nitrogen heteroatom and a catenated oxygen heteroatom, and optionally comprising a 5- or 6-membered ring;
- and
- where Rf′ and Rf″ are, independently, perfluoroalkyl groups having 1-2 carbon atoms.
3 more elements
A cleaning composition comprising:
- a compound having structural formula (I):
- where RH is CH3, CH2CH3, or a partially fluorinated alkyl group having 1-5 carbon atoms;
- where Rf is a perfluoroalkyl group having 1-9 carbon atoms, optionally comprising either or both of a catenated nitrogen heteroatom and a catenated oxygen heteroatom, and optionally comprising a 5- or 6-membered ring;
- and
- where Rf′ and Rf″ are, independently, perfluoroalkyl groups having 1-2 carbon atoms;
- and
- a co-solvent.
4 more elements
A cleaning composition comprising:
- a compound having structural formula (I):
- where RH is CH3, CH2CH3, or a partially fluorinated alkyl group having 1-5 carbon atoms;
- where Rf is a perfluoroalkyl group having 1-9 carbon atoms, optionally comprising either or both of a catenated nitrogen heteroatom and a catenated oxygen heteroatom, and optionally comprising a 5- or 6-membered ring;
- and
- where Rf′ and Rf″ are, independently, perfluoroalkyl groups having 1-2 carbon atoms;
- and
- a surfactant.
4 more elements
An immersion cooling system comprising:
- a housing having an interior space;
- a heat-generating component disposed within the interior space;
- and
- a working fluid liquid disposed within the interior space such that the heat-generating component is in contact with the working fluid liquid;
- wherein the working fluid comprises a compound having structural formula (I):
- where RH is CH3, CH2CH3, or a partially fluorinated alkyl group having 1-5 carbon atoms;
- where Rf is a perfluoroalkyl group having 1-9 carbon atoms, optionally comprising either or both of a catenated nitrogen heteroatom and a catenated oxygen heteroatom, and optionally comprising a 5- or 6-membered ring;
- and
- where Rf′ and Rf″ are, independently, perfluoroalkyl groups having 1-2 carbon atoms.
6 more elements
A thermal management system for a lithium-ion battery pack comprising:
- a lithium-ion battery pack;
- and
- a working fluid in thermal communication with the lithium-ion battery pack;
- wherein the working fluid comprises a compound having structural formula (I):
- where RH is CH3, CH2CH3, or a partially fluorinated alkyl group having 1-5 carbon atoms;
- where Rf is a perfluoroalkyl group having 1-9 carbon atoms, optionally comprising either or both of a catenated nitrogen heteroatom and a catenated oxygen heteroatom, and optionally comprising a 5- or 6-membered ring;
- and
- where Rf′ and Rf″ are, independently, perfluoroalkyl groups having 1-2 carbon atoms.
5 more elements
Dependencies are inferred from the claim text.