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).
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Patent number: 10676564Abstract: 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: GrantFiled: December 30, 2016Date of Patent: June 9, 2020Assignee: Evonik Operations GmbHInventors: Gamini Ananda Vedage, Shiying Zheng, Kathryn Sue Hayes
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Publication number: 20170218115Abstract: 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: ApplicationFiled: December 30, 2016Publication date: August 3, 2017Inventors: Gamini Ananda VEDAGE, Shiying ZHENG, Kathryn Sue HAYES
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Publication number: 20080194857Abstract: 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: ApplicationFiled: February 12, 2007Publication date: August 14, 2008Applicant: AIR PRODUCTS AND CHEMICALS, INC.Inventors: Kathryn Sue Hayes, Gamini Ananda Vedage, Eugene George Lutz, Zane W. Barrall
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Patent number: 7041857Abstract: 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: GrantFiled: September 7, 2005Date of Patent: May 9, 2006Assignee: Air Products and Chemicals, Inc.Inventors: Kathryn Sue Hayes, John William Mitchell, Anita Niak, Michael Gerard Turcotte
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Patent number: 7030283Abstract: 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: GrantFiled: January 23, 2004Date of Patent: April 18, 2006Assignee: Air Products and Chemicals, Inc.Inventors: Gauri Sankar Lal, Kathryn Sue Hayes, Guido Peter Pez
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Patent number: 6894200Abstract: 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: GrantFiled: February 3, 2003Date of Patent: May 17, 2005Assignee: Air Products and Chemicals, Inc.Inventors: Axel Klauck-Jacobs, Kathryn Sue Hayes, Reiner Taege, William Casteel, Gauri Sankar Lal
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Patent number: 6706933Abstract: 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: GrantFiled: December 30, 2002Date of Patent: March 16, 2004Assignee: Air Products and Chemicals, Inc.Inventors: Gauri Sankar Lal, Kathryn Sue Hayes
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Publication number: 20030149315Abstract: 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: ApplicationFiled: February 3, 2003Publication date: August 7, 2003Inventors: Axel Klauck-Jacobs, Kathryn Sue Hayes, Reiner Taege, William Casteel, Gauri Sankar Lal
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Publication number: 20030100806Abstract: 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: ApplicationFiled: December 30, 2002Publication date: May 29, 2003Inventors: Gauri Sankar Lal, Kathryn Sue Hayes
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Patent number: 6515191Abstract: 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: GrantFiled: July 17, 2002Date of Patent: February 4, 2003Assignee: Air Products and Chemicals, Inc.Inventors: Gauri Sankar Lal, Kathryn Sue Hayes
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Publication number: 20020198417Abstract: 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: ApplicationFiled: July 17, 2002Publication date: December 26, 2002Inventors: Gauri Sankar Lal, Kathryn Sue Hayes
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Patent number: 6455744Abstract: 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: GrantFiled: November 6, 2001Date of Patent: September 24, 2002Assignee: Air Products and Chemicals, Inc.Inventors: Gauri Sankar Lal, Kathryn Sue Hayes
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Publication number: 20020099247Abstract: 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: ApplicationFiled: November 6, 2001Publication date: July 25, 2002Inventors: Gauri Sankar Lal, Kathryn Sue Hayes
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Patent number: 6060624Abstract: 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: GrantFiled: June 8, 1999Date of Patent: May 9, 2000Assignee: Air Products and Chemicals, Inc.Inventors: Kathryn Sue Hayes, Eugene George Lutz, Michael Gerard Turcotte
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Patent number: 5932769Abstract: 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: GrantFiled: January 26, 1998Date of Patent: August 3, 1999Assignee: Air Products and Chemicals, Inc.Inventors: Gamini Ananda Vedage, Kathryn Sue Hayes, Malee Leeaphon, John Nelson Armor
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Patent number: 5886227Abstract: 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: GrantFiled: October 28, 1997Date of Patent: March 23, 1999Assignee: Air Products and Chemicals, Inc.Inventors: Gamini Ananda Vedage, Kathryn Sue Hayes