Patents by Inventor Kathryn Sue Hayes

Kathryn Sue Hayes 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).

  • Patent number: 10676564
    Abstract: A composition including an amidoamine curing agent composition or a polyamide curing agent composition are disclosed. The composition includes the reaction products of (1) an amine component including at least one multifunctional amine of structure (I): wherein each R is independently H or CH2CH2CH2NH2; R1 is H, CH3CH2CH2N—, C1-C21 alkyl, or C1-C21 alkenyl; n is 2; and m is 1 or 2, with (2) a fatty acid or ester component selected from the group consisting of a dimer fatty acid or ester component, a monofunctional fatty acid or ester component, and combinations thereof. The amidoamine curing agent composition remains as liquid at ambient temperature.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: June 9, 2020
    Assignee: Evonik Operations GmbH
    Inventors: Gamini Ananda Vedage, Shiying Zheng, Kathryn Sue Hayes
  • Publication number: 20170218115
    Abstract: A composition including an amidoamine curing agent composition or a polyamide curing agent composition are disclosed. The composition includes the reaction products of (1) an amine component including at least one multifunctional amine of structure (I): wherein each R is independently H or CH2CH2CH2NH2; R1 is H, CH3CH2CH2N—, C1-C21 alkyl, or C1-C21 alkenyl; n is 2; and m is 1 or 2, with (2) a fatty acid or ester component selected from the group consisting of a dimer fatty acid or ester component, a monofunctional fatty acid or ester component, and combinations thereof. The amidoamine curing agent composition remains as liquid at ambient temperature.
    Type: Application
    Filed: December 30, 2016
    Publication date: August 3, 2017
    Inventors: Gamini Ananda VEDAGE, Shiying ZHENG, Kathryn Sue HAYES
  • Publication number: 20080194857
    Abstract: A method for making N,N?-bis(3-aminopropyl)-1,2-ethylenediamine which comprises reacting acrylonitrile and ethylenediamine in about a 2:1 molar ratio to make a N,N?-bis(cyanoethyl)-1,2-ethylenediamine reaction product and hydrogenating the reaction product, the improvement for improving the selectivity of the reactions to N,N?-bis(2-cyanoethyl)-ethylenediamine and to N,N?-bis(3-aminopropyl)-1,2-ethylenediamine which comprises reacting acrylonitrile and ethylenediamine in the presence of 2-30 wt % water, based on total reactants.
    Type: Application
    Filed: February 12, 2007
    Publication date: August 14, 2008
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: Kathryn Sue Hayes, Gamini Ananda Vedage, Eugene George Lutz, Zane W. Barrall
  • Patent number: 7041857
    Abstract: This invention relates to an improvement in a liquid phase process for producing isopropanol by the hydrogenation of acetone in the presence of a hydrogenation catalyst; the improvement comprising; contacting acetone with hydrogen under continuous liquid phase conditions; and, employing a sponge metal catalyst promoted with an effective amount of chromium.
    Type: Grant
    Filed: September 7, 2005
    Date of Patent: May 9, 2006
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Kathryn Sue Hayes, John William Mitchell, Anita Niak, Michael Gerard Turcotte
  • Patent number: 7030283
    Abstract: This invention relates to a process for the preparation of 1,1-difluoroolefins, e.g., difluorovinyl cycloaliphatic compounds such as difluorovinylcyclohexane and derivatives by the dehydrofluorination of a trifluoromethyl-substituted cycloaliphatic compound and the resulting compositions. This method utilizes a “sterically hindered super-base” system represented by the formula M+?NRR?; where M is Na or K and R is a secondary, or tertiary alkyl or cycloalkyl group of amines for effecting dehydrofluorination of the trifluoromethyl group leading to the difluorovinyl based cycloaliphatic compounds. The sterically hindered super base can be formed by the, in situ, reaction of a sodium or potassium alkoxide, e.g., KtBuO with a lithium dialkylamide where the lithium is bonded to nitrogen atom of an amine bearing secondary or tertiary aliphatic groups.
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: April 18, 2006
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Gauri Sankar Lal, Kathryn Sue Hayes, Guido Peter Pez
  • Patent number: 6894200
    Abstract: A method of preparing vicinal difluoro aromatic compounds in high yield from hydroxy aromatic compounds using various bases and a method of preparing intermediates thereof. A method for making a vicinal difluoro halogenated aromatic compound including providing a tetrafluoro derivative of a halogen substituted aromatic compound, wherein the tetrafluoro derivative has two fluorine atoms on each of two adjacent carbons and at least one additional halogen substituent; reacting the tetrafluoro derivative with a reducing agent in presence of a base for a reaction time sufficient to form the vicinal difluoro halogenated aromatic compound containing two vicinal fluorine substituents and the at least one additional halogen substituent, wherein the reducing agent is used in a reducing agent effective amount sufficient to retain the at least one additional halogen substituent.
    Type: Grant
    Filed: February 3, 2003
    Date of Patent: May 17, 2005
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Axel Klauck-Jacobs, Kathryn Sue Hayes, Reiner Taege, William Casteel, Gauri Sankar Lal
  • Patent number: 6706933
    Abstract: A method of preparing vicinal difluoro aromatic compounds in high yield from hydroxy aromatic compounds and a method of preparing intermediates thereof. The hydroxy aromatic compound can be a mono-, bi- or tricyclic aromatic in which the rings are separate or fused. One or more of the rings can contain heteroatoms, such as oxygen, nitrogen, or sulfur, and can contain one or more substitutions, in addition to the hydroxy substitution.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: March 16, 2004
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Gauri Sankar Lal, Kathryn Sue Hayes
  • Publication number: 20030149315
    Abstract: A method of preparing vicinal difluoro aromatic compounds in high yield from hydroxy aromatic compounds using various bases and a method of preparing intermediates thereof. A method for making a vicinal difluoro halogenated aromatic compound including providing a tetrafluoro derivative of a halogen substituted aromatic compound, wherein the tetrafluoro derivative has two fluorine atoms on each of two adjacent carbons and at least one additional halogen substituent; reacting the tetrafluoro derivative with a reducing agent in presence of a base for a reaction time sufficient to form the vicinal difluoro halogenated aromatic compound containing two vicinal fluorine substituents and the at least one additional halogen substituent, wherein the reducing agent is used in a reducing agent effective amount sufficient to retain the at least one additional halogen substituent.
    Type: Application
    Filed: February 3, 2003
    Publication date: August 7, 2003
    Inventors: Axel Klauck-Jacobs, Kathryn Sue Hayes, Reiner Taege, William Casteel, Gauri Sankar Lal
  • Publication number: 20030100806
    Abstract: A method of preparing vicinal difluoro aromatic compounds in high yield from hydroxy aromatic compounds and a method of preparing intermediates thereof. The hydroxy aromatic compound can be a mono-, bi- or tricyclic aromatic in which the rings are separate or fused. One or more of the rings can contain heteroatoms, such as oxygen, nitrogen, or sulfur, and can contain one or more substitutions, in addition to the hydroxy substitution.
    Type: Application
    Filed: December 30, 2002
    Publication date: May 29, 2003
    Inventors: Gauri Sankar Lal, Kathryn Sue Hayes
  • Patent number: 6515191
    Abstract: A method of preparing vicinal difluoro aromatic compounds in high yield from hydroxy aromatic compounds and a method of preparing intermediates thereof. The hydroxy aromatic compound can be a mono-, bi- or tricyclic aromatic in which the rings are separate or fused. One or more of the rings can contain heteroatoms, such as oxygen, nitrogen, or sulfur, and can contain one or more substitutions, in addition to the hydroxy substitution.
    Type: Grant
    Filed: July 17, 2002
    Date of Patent: February 4, 2003
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Gauri Sankar Lal, Kathryn Sue Hayes
  • Publication number: 20020198417
    Abstract: A method of preparing vicinal difluoro aromatic compounds in high yield from hydroxy aromatic compounds and a method of preparing intermediates thereof. The hydroxy aromatic compound can be a mono-, bi- or tricyclic aromatic in which the rings are separate or fused. One or more of the rings can contain heteroatoms, such as oxygen, nitrogen, or sulfur, and can contain one or more substitutions, in addition to the hydroxy substitution.
    Type: Application
    Filed: July 17, 2002
    Publication date: December 26, 2002
    Inventors: Gauri Sankar Lal, Kathryn Sue Hayes
  • Patent number: 6455744
    Abstract: A method of preparing vicinal difluoro aromatic compounds in high yield from hydroxy aromatic compounds and a method of preparing intermediates thereof. The hydroxy aromatic compound can be a mono-, bi- or tricyclic aromatic in which the rings are separate or fused. One or more of the rings can contain heteroatoms, such as oxygen, nitrogen, or sulfur, and can contain one or more substitutions, in addition to the hydroxy substitution.
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: September 24, 2002
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Gauri Sankar Lal, Kathryn Sue Hayes
  • Publication number: 20020099247
    Abstract: A method of preparing vicinal difluoro aromatic compounds in high yield from hydroxy aromatic compounds and a method of preparing intermediates thereof. The hydroxy aromatic compound can be a mono-, bi- or tricyclic aromatic in which the rings are separate or fused. One or more of the rings can contain heteroatoms, such as oxygen, nitrogen, or sulfur, and can contain one or more substitutions, in addition to the hydroxy substitution.
    Type: Application
    Filed: November 6, 2001
    Publication date: July 25, 2002
    Inventors: Gauri Sankar Lal, Kathryn Sue Hayes
  • Patent number: 6060624
    Abstract: A method for racemizing an enantiomer of an alkoxyamine represented by formula I ##STR1## in which R.sub.1 and R.sub.2 are the same or different C.sub.1 to C.sub.20 alkyl group. A feed containing an enantiomer of the alkoxyamine is passed over a nickel or cobalt catalyst in the presence of hydrogen and ammonia. The racemic mixture formed by this method contains substantially no by-products.
    Type: Grant
    Filed: June 8, 1999
    Date of Patent: May 9, 2000
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Kathryn Sue Hayes, Eugene George Lutz, Michael Gerard Turcotte
  • Patent number: 5932769
    Abstract: A process for the production of aliphatic amines by reacting aliphatic alcohols with an amino compound in the presence of a catalyst containing at least two inter-dispersed metals, in a multi-metallic structure, in which at least one of the metals is nickel or cobalt, and at least one other metal is palladium, platinum, rhodium, ruthenium, or copper.
    Type: Grant
    Filed: January 26, 1998
    Date of Patent: August 3, 1999
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Gamini Ananda Vedage, Kathryn Sue Hayes, Malee Leeaphon, John Nelson Armor
  • Patent number: 5886227
    Abstract: Disclosed is an improved process for the catalytic hydrogenation of cyanopropionaldehyde alkyl acetals (CPAA) to form the aminobutyraldehyde alkyl acetals. The basic process comprises hydrogenating the cyanopropionaldehyde alkyl acetals by contacting said cyanopropionaldehyde alkyl acetals with hydrogen in the presence of a nickel or cobalt catalyst under conditions for reducing the nitrile group to the primary amine. The improvement resides in effecting the hydrogenation of a cyanopropionitrile dialkyl acetal feedstock containing contaminating levels of cyanopropionaldehyde in the presence of a secondary alkanol or water.
    Type: Grant
    Filed: October 28, 1997
    Date of Patent: March 23, 1999
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Gamini Ananda Vedage, Kathryn Sue Hayes