Patents by Inventor Barbara Haviland Minor

Barbara Haviland Minor has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • AZEOTROPIC COMPOSITIONS COMPRISING METHYL PERFLUOROPENTENE ETHERS FOR CLEANING APPLICATIONS
    Publication number: 20130244922
    Abstract: The present disclosure provides azeotropic and azeotrope-like compositions comprised of methylperfluoropentene ethers and at least one of methanol, ethanol, 2-propanol, hexane, heptane, trans-1,2-dichloroethylene, ethyl formate, methyl formate, HFE-7100, HFE-7200 and 1-bromopropane or combinations thereof. The present disclosure also provides for methods of use for the azeotropic and azeotrope-like compositions.
    Type: Application
    Filed: September 11, 2012
    Publication date: September 19, 2013
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Joan Ellen Bartelt, Barbara Haviland Minor
  • Compositions comprising iodotrifluoromethane and stabilizers
    Patent number: 8535556
    Abstract: The present invention relates to compositions comprising iodotrifluoromethane and an effective amount of at least one stabilizer selected from the group consisting of hindered phenols, thiophosphates, butylated triphenylphosphorothionates, organo phosphates, phosphites, aryl alkyl ethers, terpenes, terpenoids, epoxides, fluorinated epoxides, oxetanes, ascorbic acid, thiols, lactones, thioethers, amines, nitromethane, alkylsilanes, benzophenone derivatives, aryl sulfides, divinyl terephalic acid, diphenyl terephalic acid, ionic liquids, and mixtures thereof. These stabilized iodotrifluoromethane compositions may be useful as working fluids in multiple applications including cooling apparatus, such as refrigeration, air-conditioning, chillers, and heat pumps.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: September 17, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Thomas J. Leck, Nandini C. Mouli, Jon Lee Howell, Velliyur Nott Mallikarjuna Rao, Andrew Edward Feiring, Viacheslav A. Petrov, Allen Capron Sievert, Mario Joseph Nappa, Barbara Haviland Minor, Ekaterina N. Swearingen, Schmitz Corneille, Deepak Perti
  • Epoxide and fluorinated epoxide stabilizers for fluoroolefins
    Patent number: 8535555
    Abstract: 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.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: September 17, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Andrew Edward Feiring, Viacheslav A. Petrov, Barbara Haviland Minor, Mario Joseph Nappa, Nandini C. Mouli, Thomas J. Leck, Jon Lee Howell
  • Phosphorus-containing stabilizers for fluoroolefins
    Patent number: 8529786
    Abstract: The present disclosure relates to compositions comprising at least one fluoroolefin and an effective amount of a stabilizer comprising at least one phosphorus-containing compound selected from the group consisting of thiophosphates, butylated triphenylphosphorothionates, and organophosphates. 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.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: September 10, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Thomas J. Leck, Nandini C. Mouli, Barbara Haviland Minor, Mario Joseph Nappa, Jon Lee Howell
  • Compositions comprising a fluoroolefin
    Patent number: 8524110
    Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin 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.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: September 3, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Barbara Haviland Minor, Velliyur Nott Mallikarjuna Rao
  • Phenol stabilizers for fluoroolefins
    Patent number: 8496846
    Abstract: 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.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: July 30, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Velliyur Nott Mallikarjuna Rao, Mario Joseph Nappa, Barbara Haviland Minor, Thomas J. Leck, Nandini C. Mouli
  • Compositions comprising fluoroolefins and uses thereof
    Patent number: 8425795
    Abstract: The present invention relates to fluoroolefin compositions. The fluoroolefin compositions of the present invention are useful as refrigerants or heat transfer fluids and in processes for producing cooling or heat. Additionally, the fluoroolefin compositions of the present invention may be used to replace currently used refrigerant or heat transfer fluid compositions that have higher global warming potential.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: April 23, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Mario Joseph Nappa, Barbara Haviland Minor, Allen Capron Sievert
  • Secondary loop cooling system having a bypass and a method for bypassing a reservoir in the system
    Patent number: 8418481
    Abstract: An air conditioning or refrigeration system includes a secondary loop cooling system for use with a vapor compression system having a bypass line in order to bypass a reservoir in the secondary loop system. This bypass allows the air conditioning or refrigeration system to cool down more quickly. The secondary loop cooling system uses a non-flammable cooling fluid, which is particularly useful when the refrigerant used in the vapor compression system is flammable.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: April 16, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Barbara Haviland Minor, Mack McFarland
  • Azeotropic compositions comprising fluorinated compounds for cleaning applications
    Patent number: 8420585
    Abstract: The present invention relates to compositions comprising fluorinated olefins or fluorinated ketones, and at least one alcohol, halocarbon, hydrofluorocarbon, or fluoroether and combinations thereof. In one embodiment, these compositions are azeotropic or azeotrope-like. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: April 16, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Barbara Haviland Minor, Melodie A. Schweitzer
  • Thiol and thioether stabilizers for fluoroolefins
    Patent number: 8394286
    Abstract: The present disclosure relates to compositions comprising at least one fluoroolefin and an effective amount of a stabilizer comprising at least one thiol or thioether, or mixtures thereof. 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.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: March 12, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Thomas J. Leck, Barbara Haviland Minor, Mario Joseph Nappa, Nandini C. Mouli
  • Amine stabilizers for fluoroolefins
    Patent number: 8383004
    Abstract: The present invention relates to compositions comprising at least one fluoroolefin and an effective amount of stabilizer that may be an amine or a mixture of an amine 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.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: February 26, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Nandini C. Mouli, Barbara Haviland Minor, Mario Joseph Nappa, Thomas J. Leck
  • COMPOSITIONS COMPRISING TETRAFLUOROPROPENE AND DIFLUOROMETHANE AND USES THEREOF
    Publication number: 20120267564
    Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning and heat pump systems wherein the composition comprises tetrafluoropropene and difluoromethane. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, fire suppression, fire extinguishing agents, as power cycle working fluids and in methods for replacing HFC-134a, R410A, \R404A, or R507.
    Type: Application
    Filed: December 21, 2010
    Publication date: October 25, 2012
    Applicant: EI DU PONT DE NEMOURS AND COMPANY
    Inventors: Thomas Joseph Leck, Barbara Haviland Minor
  • AZEOTROPIC COMPOSITIONS COMPRISING FLUORINATED COMPOUNDS FOR CLEANING APPLICATIONS
    Publication number: 20120264667
    Abstract: The present invention relates to compositions comprising fluorinated olefins or fluorinated ketones, and at least one alcohol, halocarbon, hydrofluorocarbon, or fluoroether and combinations thereof. In one embodiment, these compositions are azeotropic or azeotrope-like. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.
    Type: Application
    Filed: June 22, 2012
    Publication date: October 18, 2012
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: BARBARA HAVILAND MINOR, MELODIE A. SCHWEITZER
  • CASCADE REFRIGERATION SYSTEM WITH FLUOROOLEFIN REFRIGERANT
    Publication number: 20120216551
    Abstract: The present invention relates to a cascade refrigeration system which circulates a refrigerant comprising a fluoroolefin therethrough. The cascade refrigeration system includes a low temperature refrigeration loop and a medium temperature refrigeration loop. The fluoroolefin circulates through either loop, or both. In a particular embodiment, the fluoroolefin circulates through the medium temperature loop. In a particular embodiment, where the cascade refrigeration system includes a first and a second cascade heat exchanger, and a secondary heat transfer loop which extends between the first and second cascade heat exchangers, either the first and/or second refrigerant may be, but need not necessarily be, a fluoroolefin.
    Type: Application
    Filed: November 3, 2010
    Publication date: August 30, 2012
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Barbara Haviland Minor, Konstantinos Kontomaris, Thomas J. Leck
  • AZEOTROPIC COMPOSITIONS COMPRISING FLUORINATED OLEFINS FOR CLEANING APPLICATIONS
    Publication number: 20120190604
    Abstract: The present invention relates to azeotropic or azeotrope-like compositions comprising a fluorinated olefin having the formula E- or Z—C3F7CH?CHC3F7, and at least one alcohol, halocarbon, hydrofluorocarbon, fluoroether, or alkanes and combinations thereof. In one embodiment, the one compound selected from the group consisting of alcohols, halocarbons, fluoroalkyl ethers, hydrofluorocarbons, alkanes is either methanol, ethanol, iso-propanol, n-propanol, trans-1,2-dichloroethylene, cis-1,2-dichloroethylene, n-propyl bromide, C4F9OCH3, C4F9OC2H5, HFC-43-10mee, HFC-365mfc, heptane, or combinations thereof. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.
    Type: Application
    Filed: March 30, 2012
    Publication date: July 26, 2012
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: MELODIE A. SCHWEITZER, ALLEN CAPRON SIEVERT, JOAN ELLEN BARTELT, BARBARA HAVILAND MINOR
  • Azeotropic compositions comprising fluorinated compounds for cleaning applications
    Patent number: 8222195
    Abstract: The present invention relates to compositions comprising fluorinated olefins or fluorinated ketones, and at least one alcohol, halocarbon, hydrofluorocarbon, or fluoroether and combinations thereof. In one embodiment, these compositions are azeotropic or azeotrope-like. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: July 17, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Barbara Haviland Minor, Melodie A. Schweitzer
  • COMPOSITIONS COMPRISING REFRIGERANT AND LUBRICANT AND METHODS FOR REPLACING CFC AND HCFC REFRIGERANTS WITHOUT FLUSHINGFIELD OF THE INVENTION
    Publication number: 20120145946
    Abstract: A composition comprising a refrigerant and a lubricant is disclosed, wherein the refrigerant comprises (i) a fluorocarbon selected from the group consisting of R125, R134a, R32, R152a, R143a, R218 and mixtures thereof, and (ii) a hydrocarbon selected from the group consisting of propane, n-butane, isobutane, n-pentane, isopentane, dimethyl ether, and mixtures thereof; the lubricant comprises (iii) a hydrocarbon-based lubricant component; and (iv) a synthetic lubricant component; and the synthetic lubricant component is less than 30% by weight of the total lubricant. Also disclosed are methods of replacing refrigerants in refrigeration or air conditioning systems containing a refrigerant comprising a CFC or HCFC and a lubricant.
    Type: Application
    Filed: September 3, 2010
    Publication date: June 14, 2012
    Inventor: Barbara Haviland Minor
  • Azeotropic compositions comprising fluorinated olefins for cleaning applications
    Patent number: 8163197
    Abstract: The present invention relates to azeotropic or azeotrope-like compositions comprising a fluorinated olefin having the formula E- or Z—C3F7CH?CHC3F7, and at least one alcohol, halocarbon, hydrofluorocarbon, fluoroether, or alkanes and combinations thereof. In one embodiment, the one compound selected from the group consisting of alcohols, halocarbons, fluoroalkyl ethers, hydrofluorocarbons, alkanes is either methanol, ethanol, iso-propanol, n-propanol, trans-1,2-dichloroethylene, cis-1,2-dichloroethylene, n-propyl bromide, C4F9OCH3, C4F9OC2H5, HFC-43-10mee, HFC-365mfc, heptane, or combinations thereof. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: April 24, 2012
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Melodie A. Schweitzer, Allen Capron Sievert, Joan Ellen Bartelt, Barbara Haviland Minor
  • TERPENE, TERPENOID, AND FULLERENE STABILIZERS FOR FLUOROOLEFINS
    Publication number: 20120085110
    Abstract: The present invention relates to compositions comprising at least one fluoroolefin and an effective amount of stabilizer that may be a terpene, terpenoid or fullerene; or a mixture of a terpene, terpenoid or fullerene 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.
    Type: Application
    Filed: December 14, 2011
    Publication date: April 12, 2012
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: JON LEE HOWELL, Velliyur Nott Mallikarjuna Rao, Thomas J. Leck, Barbara Haviland Minor, Mario Joseph Nappa, Nandini C. Mouli, Ekaterina N. Swearingen, Andrew Edward Feiring
  • ASCORBIC ACID, TEREPHTHALATE AND NITROMETHANE STABILIZERS FOR FLUOROOLEFINS
    Publication number: 20120074349
    Abstract: The present disclosure relates to compositions comprising at least one fluoroolefin and an effective amount of a stabilizer comprising at least one ascorbic acid, terephthalate, or nitromethane, or mixtures thereof. 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.
    Type: Application
    Filed: December 7, 2011
    Publication date: March 29, 2012
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Thomas J. LECK, Barbara Haviland MINOR, Mario Joseph NAPPA, Nandini C. MOULI, Jon Lee HOWELL