E.i. Dupont De Nemours and Company

The Chemours Company Fc, LLC

Other

E. I. Du Pont Nemours and Co.

Thomas Joseph Leck

Barbara Haviland Minor

Mario Joseph Nappa

Nandini C Mouli

Jon Lee Howell

Andrew Edward Feiring

Allen Capron Sievert

Viacheslav Alexandrovich Petrov

Velliyur Nott Mallikarjuna Rao

Howard S Hammel

Gregory Alan Bell

Thomas Frank Saturno

Donald Bernard Bivens

Ekaterina N Swearingen

Konstantinos Kontomaris

Velliyur Nott Rao

Kenneth Batzar

Deepak Perti

Stuart C Bricker

Akimichi Yokozeki

Paul Joseph Fagan

Jay Z Muchin

Mary E Koban

Dewey Lynn Kerbow

Christopher Mark Rey

John Carl Steichen

Dana P Carlson

Corneille Schmitz

Allan Harold Olson

Mack McFarland

Jeffrey Hugh Hamilton

Alan C Herzer

Schmitz Corneille

Nancy Lynn Tucker

Pavanandan Kista Naicker

Mario Josph Nappa

Mack Mcfarland

The present invention relates to compositions comprising at least one fluoroolefin and an effective amount of stabilizer that may be an epoxide, fluorinated epoxide or oxetane, or a mixture thereof with other stabilizers. The stabilized compositions may be useful in cooling apparatus, such as refrigeration, air-conditioning, chillers, and heat pumps, as well as in applications as foam blowing agents, solvents, aerosol propellants, fire extinguishants, and sterilants.

Epoxide and fluorinated epoxide stabilizers for fluoroolefins

The present invention relates to compositions comprising at least one fluoroolefin and an effective amount of stabilizer that may be an epoxide, fluorinated epoxide or oxetane, or a mixture thereof with other stabilizers. The stabilized compositions may be useful in cooling to apparatus, such as refrigeration, air-conditioning, chillers, and heat pumps, as well as in applications as foam blowing agents, solvents, aerosol propellants, fire extinguishants, and sterilants.

The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a tetrafluoropropene and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.

Tetrafluoropropene compositions and uses thereof

Disclosed herein is a composition comprising (a) from 1 to 29 weight percent difluoromethane; (b) from 1 to 19 weight percent pentafluoroethane; (c) from 9 to 42 weight percent 1,1,2,2-tetrafluoroethane, 1,1,1,2-tetrafluoroethane, or a mixture thereof; and (d) from 34 to 68 weight percent 2,3,3,3-tetrafluoropropene, E-1,3,3,3-tetrafluoropropene or mixture thereof; wherein when the composition contains 2,3,3,3-tetrafluoropropene, the composition also contains at least some 1,1,2,2-tetrafluoroethane; wherein the ratio of component (a) to component (b) is at most 1.5:1; and wherein the ratio of component (c) to component (d) is at least 0.04:1. The compositions are useful in methods for producing cooling and heating, methods for producing air conditioning, methods for replacing HCFC-22, R-410A, R-407C, HFC-134a, CFC-12, HCFC-22 and HCFC-124 and in heat transfer systems including heat pumps and air conditioners.

Compositions comprising difluoromethane, pentafluoroethane, tetrafluoropropene, and tetrafluoroethane and uses thereof

The present invention relates to compositions and processes of using perfluoropolyether to maintain or improve the oil return, lubrication, cooling capacity, or energy efficiency of a refrigeration, air conditioning or heat transfer system.

Refrigerant additive compositions containing perfluoropolyethers

The present invention provides methods for reducing the propagation of a flame to or from a refrigerant source and an ignition source in or adjacent to a cooling system, comprising positioning a metal mesh flame arrestor between said refrigerant source and said ignition source. The methods allow the use of flammable refrigerants with reduced risk of fire.

Methods of reducing flame propogation in systems with a flammable refrigerant

The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises 2,3,3,3-tetrafluoropropene (HFC-1234yf) and at least one hydrocarbon. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, and aerosol propellants.

Compositions comprising 2,3,3,3-tetrafluoropropene and hydrocarbons and uses thereof

The present invention relates to compositions comprising at least one fluoroolefin and an effective amount of stabilizer that may be at least one phenol or a mixture of at least one phenol with other stabilizers. The stabilized compositions may be useful in cooling apparatus, such as refrigeration, air-conditioning, chillers, and heat pumps, as well as in applications as foam blowing agents, solvents, aerosol propellants, fire extinguishants, and sterilants.

Phenol stabilizers for fluoroolefins

Disclosed herein is a chiller apparatus containing a composition comprising from about 6 to about 70 weight percent 2,3,3,3-tetrafluoropropene and from about 30 to about 94 weight percent 1,1,1,2-tetrafluoroethane. Also disclosed herein is a method for producing cooling in a chiller comprising (a) evaporating a liquid refrigerant comprising from about 6 to 70 weight percent 2,3,3,3-tetrafluoropropene and from about 30 to 94 weight percent 1,1,1,2-tetrafluoroethane in an evaporator having a heat transfer medium passing therethrough thereby producing a vapor refrigerant; and (b) compressing the vapor refrigerant in a compressor. Also disclosed herein is a method for replacing a refrigerant in a chiller designed for using HFC-134a or CFC-12 as refrigerant, comprising charging said chiller with a composition comprising a refrigerant consisting essentially of from about 6 to 70 weight percent 2,3,3,3-tetrafluoropropene and from about 30 to 94 weight percent 1,1,1,2-tetrafluoroethane.

Composition comprising 2,3,3,3-tetrafluoropropene and 1,1,1,2-tetrafluoroethane, chillers containing same and methods of producing cooling therein

The present invention relates to compositions comprising flammable refrigerant, fire hazard-reducing agent, and optionally a lubricant suitable for use in a refrigeration or air conditioning apparatus. Further, the present invention relates to compositions comprising lubricant and fire hazard-reducing agent and methods for reducing flammability of flammable refrigerant, for delivering a fire hazard-reducing agent to a refrigeration or air conditioning apparatus, and for replacing a non-flammable refrigerant with a flammable refrigerant.

Compositions and methods for reducing fire hazard of flammable refrigerants

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Hockessin, DE, United States of America

Thomas Joseph Leck