Patents by Inventor Hildeberto Nava

Hildeberto Nava 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).

  • Publication number: 20230257500
    Abstract: Polymerizable compositions comprising a radically polymerizable resin can be polymerized in the absence of a peroxide initiator and other undesirable components. The polymerizable compositions and methods employ a manganese- or iron-containing salt or organic complex and a 1,3-dioxo compound with one or more other components. The polymerizable compositions have better storage stability and reduced gel time-drift.
    Type: Application
    Filed: December 5, 2022
    Publication date: August 17, 2023
    Inventors: Hildeberto Nava, James Anthony Skrobacki, Samuel T. Freeman
  • Patent number: 11518834
    Abstract: Polymerizable compositions comprising a radically polymerizable resin can be polymerized in the absence of a peroxide initiator and other undesirable components. The polymerizable compositions and methods employ a manganese- or iron-containing salt or organic complex and a 1,3-dioxo compound with one or more other components. The polymerizable compositions have better storage stability and reduced gel time-drift.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: December 6, 2022
    Assignee: Polynt Composites USA, Inc.
    Inventors: Hildeberto Nava, James Anthony Skrobacki, Samuel T. Freeman
  • Publication number: 20200207895
    Abstract: Polymerizable compositions comprising a radically polymerizable resin can be polymerized in the absence of a peroxide initiator and other undesirable components. The polymerizable compositions and methods employ a manganese- or iron-containing salt or organic complex and a 1,3-dioxo compound with one or more other components. The polymerizable compositions have better storage stability and reduced gel time-drift.
    Type: Application
    Filed: December 30, 2019
    Publication date: July 2, 2020
    Inventors: Hildeberto Nava, James Anthony Skrobacki, Samuel T. Freeman
  • Patent number: 10570107
    Abstract: The present invention provides a process for forming vinyl-containing compounds including the steps of: a) reacting in a nitrogen atmosphere a dicarboxylic acid and/or anhydride and a functional mono or polyfunctional alcohol to provide a hydroxyl-containing polyester; b) reacting the hydroxyl-containing polyester with a vinyl-containing organic acid in the presence of an esterification catalyst, a polymerization inhibitor and an azeotropic agent; and c) reacting the vinyl functional esterified intermediate, residual esterification catalyst and residual vinyl-containing organic acid with an epoxy to provide the vinyl-containing compound.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: February 25, 2020
    Assignee: Reichhold LLC 2
    Inventors: Hildeberto Nava, Yongning Liu
  • Patent number: 10544299
    Abstract: A process for forming a thermosetting resin in a nitrogen atmosphere is provided. The process includes the steps of a) reacting a polycarboxylic acid and/or anhydride and a polyhydric alcohol to provide a hydroxyl-containing intermediate; b) reacting the hydroxyl-containing intermediate with a vinyl-containing organic acid or vinyl containing alkyl ester in the presence of an esterification catalyst, a polymerization inhibitor and an azeotropic agent; and c) reacting any residual vinyl-containing organic acid and residual esterification catalyst with an epoxide.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: January 28, 2020
    Assignee: Reichhold LLC 2
    Inventors: Hildeberto Nava, Yongning Liu
  • Publication number: 20180290992
    Abstract: The present invention provides a process for forming vinyl-containing compounds including the steps of: a) reacting in a nitrogen atmosphere a dicarboxylic acid and/or anhydride and a functional mono or polyfunctional alcohol to provide a hydroxyl-containing polyester; b) reacting the hydroxyl-containing polyester with a vinyl-containing organic acid in the presence of an esterification catalyst, a polymerization inhibitor and an azeotropic agent; and c) reacting the vinyl functional esterified intermediate, residual esterification catalyst and residual vinyl-containing organic acid with an epoxy to provide the vinyl-containing compound.
    Type: Application
    Filed: March 30, 2018
    Publication date: October 11, 2018
    Inventors: Hildeberto Nava, Yongning Liu
  • Publication number: 20180223039
    Abstract: The present invention relates generally to accelerators for the curing of thermosetting resins in the presence of metal compounds, quaternary ammonium and/or phosphonium salts, tertiary amines and/or phosphines and peroxide initiators, and methods of curing thermosetting resins using these accelerators.
    Type: Application
    Filed: March 30, 2018
    Publication date: August 9, 2018
    Inventors: Hildeberto Nava, William A. Schramm, James Anthony Skrobacki
  • Patent number: 10000602
    Abstract: The present invention relates generally to accelerators for the curing of thermosetting resins in the presence of metal compounds, quaternary ammonium and/or phosphonium salts, tertiary amines and/or phosphines and peroxide initiators, and methods of curing thermosetting resins using these accelerators.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: June 19, 2018
    Assignee: Reichhold LLC 2
    Inventors: Hildeberto Nava, William A. Schramm, James Anthony Skrobacki
  • Patent number: 9957243
    Abstract: The present invention provides a process for forming vinyl-containing compounds including the steps of: a) reacting in a nitrogen atmosphere a dicarboxylic acid and/or anhydride and a functional mono or polyfunctional alcohol to provide a hydroxyl-containing polyester; b) reacting the hydroxyl-containing polyester with a vinyl-containing organic acid in the presence of an esterification catalyst, a polymerization inhibitor and an azeotropic agent; and c) reacting the vinyl functional esterified intermediate, residual esterification catalyst and residual vinyl-containing organic acid with an epoxy to provide the vinyl-containing compound.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: May 1, 2018
    Assignee: Reichhold LLC 2
    Inventors: Hildeberto Nava, Yongning Liu
  • Publication number: 20160355490
    Abstract: The present invention provides a process for forming vinyl-containing compounds including the steps of: a) reacting in a nitrogen atmosphere a dicarboxylic acid and/or anhydride and a functional mono or polyfunctional alcohol to provide a hydroxyl-containing polyester; b) reacting the hydroxyl-containing polyester with a vinyl-containing organic acid in the presence of an esterification catalyst, a polymerization inhibitor and an azeotropic agent; and c) reacting the vinyl functional esterified intermediate, residual esterification catalyst and residual vinyl-containing organic acid with an epoxy to provide the vinyl-containing compound.
    Type: Application
    Filed: August 10, 2016
    Publication date: December 8, 2016
    Inventors: Hildeberto Nava, Yongning Li
  • Publication number: 20160096918
    Abstract: The present invention relates generally to accelerators for the curing of thermosetting resins in the presence of metal compounds, quaternary ammonium and/or phosphonium salts, tertiary amines and/or phosphines and peroxide initiators, and methods of curing thermosetting resins using these accelerators.
    Type: Application
    Filed: September 18, 2015
    Publication date: April 7, 2016
    Inventors: Hildeberto Nava, William A. Schramm, James Anthony Skrobacki
  • Patent number: 9068045
    Abstract: The compositions of the present invention for accelerating the curing of thermosetting resins, including a) an organophosphine metal complex, optionally with a transition metal salt essentially free of cobalt; b) a tertiary amine, optionally with a quaternary ammonium or phosphonium salt; and c) a peroxide initiator.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: June 30, 2015
    Assignee: Reichhold, Inc.
    Inventors: Hildeberto Nava, Anthony Skrobacki
  • Publication number: 20140303315
    Abstract: The compositions of the present invention for accelerating the curing of thermosetting resins, including a) an organophosphine metal complex, optionally with a transition metal salt essentially free of cobalt; b) a tertiary amine, optionally with a quaternary ammonium or phosphonium salt; and c) a peroxide initiator.
    Type: Application
    Filed: March 28, 2014
    Publication date: October 9, 2014
    Inventors: Hildeberto Nava, Anthony Skrobacki
  • Publication number: 20140171568
    Abstract: A process for forming a thermosetting resin in a nitrogen atmosphere is provided. The process includes the steps of a) reacting a polycarboxylic acid and/or anhydride and a polyhydric alcohol to provide a hydroxyl-containing intermediate; b) reacting the hydroxyl-containing intermediate with a vinyl-containing organic acid or vinyl containing alkyl ester in the presence of an esterification catalyst, a polymerization inhibitor and an azeotropic agent; and c) reacting any residual vinyl-containing organic acid and residual esterification catalyst with an epoxide.
    Type: Application
    Filed: November 26, 2013
    Publication date: June 19, 2014
    Inventors: Hildeberto Nava, Yongning Liu
  • Patent number: 8110650
    Abstract: Methods of making unsaturated polyester compositions are provided and include reacting: (i) plant and animal oil triglycerides, an alkyl ester of a saturated or unsaturated fatty acid or mixtures thereof; (ii) a difunctional, or polyfunctional glycol or mixtures thereof; (iii) a difunctional or polyfunctional acid, their anhydrides or alkyl esters and mixtures thereof; (iv) a strained cycloolefin; (v) a component(s) that function as a compound capable of initiating polymerization at high temperature and which is stable at room temperature; and (vi) low profile additives, fillers and reinforcements.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: February 7, 2012
    Assignee: Reichold, Inc.
    Inventors: Hildeberto Nava, Lianzhou Chen
  • Publication number: 20110275761
    Abstract: Methods of making unsaturated polyester compositions are provided and include reacting: (i) plant and animal oil triglycerides, an alkyl ester of a saturated or unsaturated fatty acid or mixtures thereof; (ii) a difunctional, or polyfunctional glycol or mixtures thereof; (iii) a difunctional or polyfunctional acid, their anhydrides or alkyl esters and mixtures thereof; (iv) a strained cycloolefin; (v) a component(s) that function as a compound capable of initiating polymerization at high temperature and which is stable at room temperature; and (vi) low profile additives, fillers and reinforcements.
    Type: Application
    Filed: July 19, 2011
    Publication date: November 10, 2011
    Inventors: Hildeberto Nava, Lianzhou Chen
  • Publication number: 20110207950
    Abstract: The present invention provides a process for forming vinyl-containing compounds including the steps of: a) reacting in a nitrogen atmosphere a dicarboxylic acid and/or anhydride and a functional mono or polyfunctional alcohol to provide a hydroxyl-containing polyester; b) reacting the hydroxyl-containing polyester with a vinyl-containing organic acid in the presence of an esterification catalyst, a polymerization inhibitor and an azeotropic agent; and c) reacting the vinyl functional esterified intermediate, residual esterification catalyst and residual vinyl-containing organic acid with an epoxy to provide the vinyl-containing compound.
    Type: Application
    Filed: February 10, 2011
    Publication date: August 25, 2011
    Inventors: Hildeberto Nava, Yongning Liu
  • Patent number: 7985826
    Abstract: Unsaturated polyester compositions are disclosed that are obtainable by reacting: (i) plant and animal oil triglycerides, an alkyl ester of a saturated or unsaturated fatty acid or mixtures thereof; (ii) a difunctional, or polyfunctional glycol or mixtures thereof; (iii) a difunctional or polyfunctional acid, their anhydrides or alkyl esters and mixtures thereof; (iv) a strained cycloolefin; (v) a component(s) that function as a compound capable of initiating polymerization at high temperature and which is stable at room temperature; and (vi) low profile additives, fillers, and reinforcements. Also disclosed are methods for the preparation of the polyesters and the use of the polyesters in closed and open mold compositions such as sheet molding compound (SMC), bulk molding compounding (BMC), resin transfer molding (RTM), pultrusion, infusion, filament winding, and spray up.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: July 26, 2011
    Assignee: Reichhold, Inc.
    Inventors: Hildeberto Nava, Lianzhou Chen
  • Publication number: 20080154002
    Abstract: Unsaturated polyester compositions are disclosed that are obtainable by reacting: (i) plant and animal oil triglycerides, an alkyl ester of a saturated or unsaturated fatty acid or mixtures thereof; (ii) a difunctional, or polyfunctional glycol or mixtures thereof; (iii) a difunctional or polyfunctional acid, their anhydrides or alkyl esters and mixtures thereof; (iv) a strained cycloolefin; (v) a component(s) that function as a compound capable of initiating polymerization at high temperature and which is stable at room temperature; and (vi) low profile additives, fillers and reinforcements. Also disclosed are methods for the preparation of the polyesters and the use of the polyesters in closed and open mold compositions such as sheet molding compounding (SMC), bulk molding compounding (BMC), resin transfer molding (RTM), pultrusion, infusion, filament winding, and spray up.
    Type: Application
    Filed: December 22, 2006
    Publication date: June 26, 2008
    Inventors: Hildeberto Nava, Lianzhou Chen
  • Publication number: 20070270542
    Abstract: The present invention provides a crosslinkable polymer system that can be crosslinked to form a wide variety of polymeric, copolymeric and oligomeric compounds. The crosslinkable system comprises (a) product Q formed from an aromatic ethylenically unsaturated moiety and a first reactive ethylenically unsaturated moiety, and (b) a second reactive ethylenically unsaturated moiety at least partially reacted with the first reactive ethylenically unsaturated moiety.
    Type: Application
    Filed: August 2, 2007
    Publication date: November 22, 2007
    Inventors: Hildeberto Nava, Aaron Small