Patents by Inventor Howard P. Klein

Howard P. Klein 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: 11566107
    Abstract: An etheramine mixture comprising one or more polyether diamines, methods for its production, and its use as a curing agent for epoxy resins. The etheramine mixture may also be used in the preparation of polyamides and polyurea compounds.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: January 31, 2023
    Assignee: HUNTSMAN Petrochemical LLC
    Inventors: Howard P. Klein, Terry L. Renken, Cheng-Kuang Li
  • Patent number: 11472739
    Abstract: An admixture composition for use in cementitious compositions for improving the properties of the cementitious composition wherein the admixture composition comprises at least a polycarboxylate type comb-polymer dispersant and a hydroxyl amine compound selected from EDIPA (N,N-bis (2 hydroxypropyl)-N-(hydroxyethyl) amine) and optionally one or more polyhydroxyalkyl ethyleneamine compounds.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: October 18, 2022
    Assignee: Huntsman Petrochemical LLC
    Inventors: Antonius Wibowo, Howard P Klein, Robert A Grigsby, Jr.
  • Patent number: 11292873
    Abstract: Implementations described herein generally relate to etheramine mixtures formed from a mixture of two or more multifunctional alcohol initiators, processes for the etheramine mixtures production, and its use as a curing agent or as a raw material in the synthesis of polymers. In one implementation, the process comprises mixing a polyol initiator having a melting point greater than a processing temperature and a polyol initiator having a melting point less than the processing temperature to form a polyol initiator mixture having a melting point less than the processing temperature, charging the polyol initiator mixture to an alkoxylation reaction zone, contacting the polyol initiator mixture with an alkylene oxide in the alkoxylation reaction zone to provide a mixture of alkoxylated precursor polyols and charging the mixture of alkoxylated precursor polyols to a reductive amination zone and reductively aminating the mixture of alkoxylated precursor polyols to form the etheramine mixture.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: April 5, 2022
    Assignee: HUNTSMAN Petrochemical LLC
    Inventors: Hui Zhou, David C. Lewis, Howard P. Klein, Terry L. Renken, Leah Patterson
  • Patent number: 11198756
    Abstract: The present disclosure provides a curable composition that includes an epoxy resin and a curing component comprising a blend of at least two amines. The curable composition may be combined with reinforced fibers and cured to form a composite article which can be used in various applications, such as in wind turbine blades.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: December 14, 2021
    Assignee: HUNTSMAN Petrochemical LLC
    Inventors: Hui Zhou, David C Lewis, Howard P. Klein, Robert A. Grigsby, Feixia Chen, Katty Darragas
  • Patent number: 11015015
    Abstract: The present disclosure provides a process for the co-preparation of a polyetheramine and an alkylene amine mixture by aminating a liquid polyol initiator mixture comprising an alkoxylated alcohol and a solid high melting polyol. The polyetheramine and alkylene amine mixture may be used in a variety of applications, such as a curing agent for epoxy resin formulations or as a raw material in the synthesis of polyurea.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: May 25, 2021
    Assignee: HUNTSMAN Petrochemical LLC
    Inventors: Hui Zhou, Howard P Klein, David C Lewis
  • Publication number: 20210017334
    Abstract: An etheramine mixture comprising one or more polyether diamines, methods for its production, and its use as a curing agent for epoxy resins. The etheramine mixture may also be used in the preparation of polyamides and polyurea compounds.
    Type: Application
    Filed: March 18, 2019
    Publication date: January 21, 2021
    Inventors: Howard P. Klein, Terry L. Renken, Cheng-Kuang Li
  • Patent number: 10717875
    Abstract: Provided herein are compositions useful as ink or coatings which contain novel dispersants that are capable of dispersing pigments which are traditionally difficult to disperse while maintaining acceptable levels of viscosity. Use of dispersants as taught herein enables the preparation of a wide variety of inks and coatings having high pigment loading and existing within a conventionally-useful viscosity range.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: July 21, 2020
    Assignee: HUNTSMAN Petrochemical LLC
    Inventors: Duy T Nguyen, Howard P Klein
  • Publication number: 20200062890
    Abstract: Implementations described herein generally relate to etheramine mixtures formed from a mixture of two or more multifunctional alcohol initiators, processes for the etheramine mixtures production, and its use as a curing agent or as a raw material in the synthesis of polymers. In one implementation, the process comprises mixing a polyol initiator having a melting point greater than a processing temperature and a polyol initiator having a melting point less than the processing temperature to form a polyol initiator mixture having a melting point less than the processing temperature, charging the polyol initiator mixture to an alkoxylation reaction zone, contacting the polyol initiator mixture with an alkylene oxide in the alkoxylation reaction zone to provide a mixture of alkoxylated precursor polyols and charging the mixture of alkoxylated precursor polyols to a reductive amination zone and reductively aminating the mixture of alkoxylated precursor polyols to form the etheramine mixture.
    Type: Application
    Filed: October 30, 2019
    Publication date: February 27, 2020
    Inventors: Hui Zhou, David C. Lewis, Howard P. Klein, Terry L. Renken, Leah Patterson
  • Patent number: 10513578
    Abstract: Implementations described herein generally relate to etheramine mixtures formed from a mixture of two or more multifunctional alcohol initiators, processes for the etheramine mixtures production, and its use as a curing agent or as a raw material in the synthesis of polymers. In one implementation, the process comprises mixing a polyol initiator having a melting point greater than a processing temperature and a polyol initiator having a melting point less than the processing temperature to form a polyol initiator mixture having a melting point less than the processing temperature, charging the polyol initiator mixture to an alkoxylation reaction zone, contacting the polyol initiator mixture with an alkylene oxide in the alkoxylation reaction zone to provide a mixture of alkoxylated precursor polyols and charging the mixture of alkoxylated precursor polyols to a reductive amination zone and reductively aminating the mixture of alkoxylated precursor polyols to form the etheramine mixture.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: December 24, 2019
    Assignee: HUNTSMAN Petrochemical LLC
    Inventors: Hui Zhou, David C Lewis, Howard P Klein, Terry L Renken, Leah Patterson
  • Patent number: 10301489
    Abstract: Embodiments described herein provide a dispersant for ink and pigmented coatings. The dispersant is a polyurethane having oxamide diol groups. The dispersant may be used to prepare a wide variety of inks and coatings having high pigment loading and existing within a conventionally-useful viscosity range.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: May 28, 2019
    Assignee: HUNTSMAN PETROCHEMICAL LLC
    Inventors: Howard P. Klein, Frank Bertens, Petra Vanderstraeten, Jolande Celis
  • Publication number: 20190100616
    Abstract: The present disclosure provides a curable composition that includes an epoxy resin and a curing component comprising a blend of at least two amines. The curable composition may be combined with reinforced fibers and cured to form a composite article which can be used in various applications, such as in wind turbine blades.
    Type: Application
    Filed: June 16, 2017
    Publication date: April 4, 2019
    Inventors: Hui Zhou, David C Lewis, Howard P. Klein, Robert A. Grigsby, Feixia Chen, Katty Darragas
  • Publication number: 20180312624
    Abstract: The present disclosure provides a process for the co-preparation of a polyetheramine and an alkylene amine mixture by aminating a liquid polyol initiator mixture comprising an alkoxylated alcohol and a solid high melting polyol. The polyetheramine and alkylene amine mixture may be used in a variety of applications, such as a curing agent for epoxy resin formulations or as a raw material in the synthesis of polyurea.
    Type: Application
    Filed: November 30, 2016
    Publication date: November 1, 2018
    Inventors: Hui Zhou, Howard P Klein, David C Lewis
  • Patent number: 9988483
    Abstract: The present disclosure relates to pyrrolidine-based catalysts for use in a polyurethane formulation. The polyurethane formulation includes the pyrrolidine-based catalyst, a compound containing an isocyanate functional group, an active hydrogen-containing compound. The use of such catalysts produces high quality polyurethane foam while reducing environmental concerns that can arise during the production of polyurethane foam as well as in the foam that is produced.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: June 5, 2018
    Assignee: HUNTSMAN PETROCHEMICAL LLC
    Inventors: Matthew W. Forkner, Robert A. Grigsby, Jr., Eugene P. Wiltz, Jr., Ernest L. Rister, Jr., Frank Rodriguez, Howard P. Klein
  • Patent number: 9822215
    Abstract: Implementations described herein relate to an etheramine mixture containing a cyclobutane based amine and its method of production by alkoxylating an initiator with an alkylene oxide to produce a precursor polyol and reductively aminating the precursor polyol to form the ehteramine mixture. The etheramine mixture may be used in a variety of applications including as a curing agent for an epoxy resin or as a reactant in the production of polyurea materials.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: November 21, 2017
    Assignee: HUNTSMAN PETROCHEMICAL LLC
    Inventors: Hui Zhou, David C Lewis, Howard P Klein, Terry L Renken
  • Publication number: 20170240756
    Abstract: Embodiments described herein provide a dispersant for ink and pigmented coatings. The dispersant is a polyurethane having oxamide diol groups. The dispersant may be used to prepare a wide variety of inks and coatings having high pigment loading and existing within a conventionally-useful viscosity range.
    Type: Application
    Filed: November 5, 2015
    Publication date: August 24, 2017
    Inventors: Howard P. Klein, Frank Bertens, Petra Vanderstraeten, Jolande Celis
  • Publication number: 20170101501
    Abstract: The present disclosure relates to pyrrolidine-based catalysts for use in a polyurethane formulation. The polyurethane formulation includes the pyrrolidine-based catalyst, a compound containing an isocyanate functional group, an active hydrogen-containing compound. The use of such catalysts produces high quality polyurethane foam while reducing environmental concerns that can arise during the production of polyurethane foam as well as in in the foam that is produced.
    Type: Application
    Filed: June 24, 2015
    Publication date: April 13, 2017
    Inventors: Matthew W. FORKNER, Robert A. GRIGSBY, Jr., Eugene P. WILTZ, Jr., Ernest L. RISTER, Jr., Frank RODRIGUEZ, Howard P. KLEIN
  • Publication number: 20170101535
    Abstract: Provided herein are compositions useful as ink or coatings which contain novel dispersants that are capable of dispersing pigments which are traditionally difficult to disperse while maintaining acceptable levels of viscosity. Use of dispersants as taught herein enables the preparation of a wide variety of inks and coatings having high pigment loading and existing within a conventionally-useful viscosity range.
    Type: Application
    Filed: December 23, 2016
    Publication date: April 13, 2017
    Inventors: Duy T. Nguyen, Howard P. Klein
  • Patent number: 9567482
    Abstract: Provided herein are compositions useful as ink or coatings which contain novel dispersants that are capable of dispersing pigments which are traditionally difficult to disperse while maintaining acceptable levels of viscosity. Use of dispersants as taught herein enables the preparation of a wide variety of inks and coatings having high pigment loading and existing within a conventionally-useful viscosity range.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: February 14, 2017
    Assignee: HUNTSMAN PETROCHEMICAL LLC
    Inventors: Duy T Nguyen, Howard P Klein
  • Publication number: 20160264465
    Abstract: An admixture composition for use in cementitious compositions for improving the properties of the cementitious composition wherein the admixture composition comprises at least a polycarboxylate type comb-polymer dispersant and a hydroxyl amine compound selected from EDIPA (N,N-bis (2 hydroxypropyl)-N-(hydroxyethyl) amine) and optionally one or more polyhydroxyalkyl ethyleneamine compounds.
    Type: Application
    Filed: September 29, 2014
    Publication date: September 15, 2016
    Inventors: Antonius Wibowo, Howard P Klein, Robert A Grigsby, Jr.
  • Publication number: 20160257777
    Abstract: Implementations described herein relate to an etheramine mixture containing a cyclobutane based amine and its method of production by alkoxylating an initiator with an alkylene oxide to produce a precursor polyol and reductively aminating the precursor polyol to form the ehteramine mixture. The etheramine mixture may be used in a variety of applications including as a curing agent for an epoxy resin or as a reactant in the production of polyurea materials.
    Type: Application
    Filed: October 17, 2014
    Publication date: September 8, 2016
    Inventors: Hui Zhou, David C Lewis, Howard P Klein, Terry L Renken