Patents by Inventor Nathan A. Wilmot

Nathan A. Wilmot 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: 20230406305
    Abstract: A measurement vehicle for use with a vehicle under a coastdown test on a surface includes a chassis including one or more wheels, and a propulsion system coupled to the chassis. The propulsion system is configured to drive the one or more wheels to move the measurement vehicle relative to the vehicle. The measurement vehicle includes at least one sensor configured to observe one or more conditions associated with the coastdown test and a communication system configured to transmit the one or more conditions to the vehicle.
    Type: Application
    Filed: May 17, 2022
    Publication date: December 21, 2023
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Nathan A. Wilmot, Nick Brian Smith
  • Patent number: 11713431
    Abstract: A continuous process for producing a polyurea concentrate or powder. The process includes combing at least one amine and an isocayante in the presence of a liquid diluent or a base oil in a rotor stator mixer. The concentrate comprises a polyurea in a base oil wherein the concentration of from about 20 weight percent to about 50, or 40 or 35 or 30 weight percent of polyurea based on total weight of grease thickener. The powder has particle size of 2 to 400 microns. This concentrate or powder can then be formulated by grease manufacturers to the desired final properties without the need for handling of the isocyanate and amine raw materials.
    Type: Grant
    Filed: May 11, 2022
    Date of Patent: August 1, 2023
    Assignee: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Zhe Jia, John B. Cuthbert, David L. Malotky, Stacey A. Saba, Bruce D. Hook, Nathan Wilmot, Daniel L. Dermody
  • Publication number: 20220267695
    Abstract: A continuous process for producing a polyurea concentrate or powder. The process includes combing at least one amine and an isocayante in the presence of a liquid diluent or a base oil in a rotor stator mixer. The concentrate comprises a polyurea in a base oil wherein the concentration of from about 20 weight percent to about 50, or 40 or 35 or 30 weight percent of polyurea based on total weight of grease thickener. The powder has particle size of 2 to 400 microns. This concentrate or powder can then be formulated by grease manufacturers to the desired final properties without the need for handling of the isocyanate and amine raw materials.
    Type: Application
    Filed: May 11, 2022
    Publication date: August 25, 2022
    Inventors: Zhe Jia, John B. CUTHBERT, David L. MALOTKY, Stacey A. SABA, Bruce D. HOOK, Nathan WILMOT, Daniel L. DERMODY
  • Patent number: 11359157
    Abstract: A continuous process for producing a polyurea concentrate or powder. The process includes combing at least one amine and an isocyanate in the presence of a liquid diluent or a base oil in a rotor stator mixer. The concentrate comprises a polyurea in a base oil wherein the concentration of from about 20 weight percent to about 50, or 40 or 35 or 30 weight percent of polyurea based on total weight of grease thickener. The powder has particle size of 2 to 400 microns. This concentrate or powder can then be formulated by grease manufacturers to the desired final properties without the need for handling of the isocyanate and amine raw materials.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: June 14, 2022
    Assignee: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Zhe Jia, John B. Cuthbert, David L. Malotky, Stacey A. Saba, Bruce D. Hook, Nathan Wilmot, Daniel L. Dermody
  • Patent number: 11225550
    Abstract: A reaction system for forming a step-growth polymerized sulfur-containing polyester polyol includes at least one sulfur-containing component selected from the group of a sulfur-containing polyol or a sulfur-containing polycarboxylic acid, an amount of the at least one sulfur-containing component being from 1 wt % to 60 wt %, at least one aromatic component selected from the group of an aromatic multi-functional ester, an aromatic multi-functional carboxylic acid, and an aromatic anhydride, an amount of the at least one aromatic component being from 1 wt % to 60 wt %, at least one simple polyol that excludes sulfur and is different from the sulfur containing polyol, an amount of the at least one simple polyol being from 0 wt % to 60 wt %, and at least one polymerization catalyst. The reaction system for forming the sulfur-containing polyester polyol has a sulfur content that is from 2 wt % to 20 wt %.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: January 18, 2022
    Assignee: Dow Global Technologies LLC
    Inventors: Christopher S. Letko, Harshad M. Shah, Rajat Duggal, Nathan Wilmot
  • Publication number: 20210324289
    Abstract: A continuous process for producing a polyurea concentrate or powder. The process includes combing at least one amine and an isocayante in the presence of a liquid diluent or a base oil in a rotor stator mixer. The concentrate comprises a polyurea in a base oil wherein the concentration of from about 20 weight percent to about 50, or 40 or 35 or 30 weight percent of polyurea based on total weight of grease thickener. The powder has particle size of 2 to 400 microns.
    Type: Application
    Filed: June 27, 2019
    Publication date: October 21, 2021
    Inventors: Zhe JIA, John B. CUTHBERT, David L. MALOTKY, Stacey A. SABA, Bruce D. HOOK, Nathan WILMOT, Daniel L. DERMODY
  • Publication number: 20210277178
    Abstract: A reaction system for forming a step-growth polymerized sulfur-containing polyester polyol includes at least one sulfur-containing component selected from the group of a sulfur-containing polyol or a sulfur-containing polycarboxylic acid, an amount of the at least one sulfur-containing component being from 1 wt % to 60 wt %, at least one aromatic component selected from the group of an aromatic multi-functional ester, an aromatic multi-functional carboxylic acid, and an aromatic anhydride, an amount of the at least one aromatic component being from 1 wt % to 60 wt %, at least one simple polyol that excludes sulfur and is different from the sulfur containing polyol, an amount of the at least one simple polyol being from 0 wt % to 60 wt %, and at least one polymerization catalyst. The reaction system for forming the sulfur-containing polyester polyol has a sulfur content that is from 2 wt % to 20 wt %.
    Type: Application
    Filed: December 11, 2017
    Publication date: September 9, 2021
    Inventors: Christopher S. Letko, Harshad M. Shah, Rajat Duggal, Nathan Wilmot
  • Publication number: 20210252774
    Abstract: A method of fused filament fabrication (FFF) additive manufacturing comprises employing an olefin block copolymer. The method allows for the additive manufacturing article that retains the desirable mechanical properties of polyolefins such as polyethylene or polypropylene without experiencing the problems inherent in FFF printing of polyethylene or polypropylene particularly in the absence of solid fillers. In a particular embodiment, the additive manufactured article is comprised of the olefin block copolymer is comprised of block composite or crystalline block composite polymer or mixture thereof comprising the olefin block copolymer, wherein the olefin block copolymer is comprised of an isotactic propylene block and a polyethylene rich block.
    Type: Application
    Filed: October 4, 2019
    Publication date: August 19, 2021
    Inventors: Andy Jun Li, Craig F. Gorin, Brayden E. Glad, Yushan Hu, Elva L. Lugo, Ni Yan, Piyush Thakre, Bruce D. Hook, Nathan Wilmot
  • Patent number: 10825344
    Abstract: Methods and systems for forming a fleet and positioning vehicles in the fleet are disclosed. The system comprises a data transmission interface and a data processing unit. The data processing unit sends data to and receives data from the data transmission interface. The data processing unit determines an itinerary of each of a group of vehicles requesting to join a fleet. The data processing unit compares the itinerary of all vehicles of the group of vehicles. The data processing unit determines a second vehicle to form a fleet with a first vehicle from the group of vehicles. The data transmission interface communicates to the first vehicle a proposal to form a fleet with the second vehicle. The data processing unit determines if the first vehicle accepts the proposal, and if yes, determines instructions for the first vehicle how to join the fleet.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: November 3, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Rohit Belapurkar, Nathan A. Wilmot
  • Publication number: 20190236959
    Abstract: Methods and systems for forming a fleet and positioning vehicles in the fleet are disclosed. The system comprises a data transmission interface and a data processing unit. The data processing unit sends data to and receives data from the data transmission interface. The data processing unit determines an itinerary of each of a group of vehicles requesting to join a fleet. The data processing unit compares the itinerary of all vehicles of the group of vehicles. The data processing unit determines a second vehicle to form a fleet with a first vehicle from the group of vehicles. The data transmission interface communicates to the first vehicle a proposal to form a fleet with the second vehicle. The data processing unit determines if the first vehicle accepts the proposal, and if yes, determines instructions for the first vehicle how to join the fleet.
    Type: Application
    Filed: February 1, 2018
    Publication date: August 1, 2019
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Rohit Belapurkar, Nathan A. Wilmot
  • Patent number: 10294322
    Abstract: The instant invention provides an isocyanate trimerization catalyst system, a precursor formulation, a process for trimerizing isocyanates, rigid foams made therefrom, and a process for making such foams. The trimerization catalyst system comprises: (a) a phosphatrane cation; and (b) an isocyanate-trimer inducing anion; wherein said trimerization catalyst system has a trimerization activation temperature in the range of equal to or less than 73° C. The precursor formulation comprises (1) at least 25 percent by weight of polyol, based on the weight of the precursor formulation; (2) less than 15 percent by weight of a trimerization catalyst system, based on the weight of the precursor formulation, comprising; (a) a phosphatrane cation; and (c) an isocyanate-trimer inducing anion; wherein said trimerization catalyst system has a trimerization activation temperature in the range of equal to or less than 73° C.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: May 21, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Phillip S. Athey, Nathan Wilmot, Richard J. Keaton, David A. Babb, Cecile Boyer, Timothy A. Morley
  • Patent number: 10150834
    Abstract: A method for making joints in an electrical cable is disclosed. A first cable having polymeric insulation and a first bare conductor end and a second cable having polymeric insulation and a second bare conductor end are provided and joined create a conductor joint. A curable reaction mixture is applied over the conductor joint and cured to form a polymeric insulating sheath over the conductor joint and bonded to the polymeric insulation of each of the first and second cables. The reaction mixture includes a carbon-Michael acceptor compound, a carbon-Michael donor compound and a carbon-Michael reaction catalyst.
    Type: Grant
    Filed: August 16, 2014
    Date of Patent: December 11, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Nicole Knight, Dwight Latham, Nathan Wilmot
  • Publication number: 20180187820
    Abstract: A contaminant capturing liner includes a cured product of a composition including an epoxy resin component including at least one alkanolamine modified epoxy resin and at least one hardener. The contaminant capturing liner includes at least one contaminant capturing material embedded therewithin, and the contaminant capturing liner is a permeable layer having a difference between dry glass transition temperature and wet glass transition temperature of at least 14 C.
    Type: Application
    Filed: June 21, 2016
    Publication date: July 5, 2018
    Inventors: Fabio Aguirre Vargas, John Klier, William A. Koonce, Juan Carlos Medina, Nathan Wilmot, Kaoru Aou, Sachit Goyal
  • Patent number: 9969837
    Abstract: Polyisocyanate-based polymers are formed by curing a reaction mixture containing at least one polyisocyanate and at least one isocyanate-reactive compound having at least two isocyanate-reactive groups in the presence of a tertiary amine catalyst having a molecular weight of up to 300 and from 0.01 to 1.0 mole per mole of the tertiary amine compound(s) of a non-protic, non-catalytic, metal-containing Lewis acid.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: May 15, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Rajat Duggal, Nathan Wilmot, Richard J. Keaton, Duane R. Romer, Peter M. Margl
  • Publication number: 20180046076
    Abstract: A three-dimensional printing photocurable composition includes from 20 wt % to 70 wt % of an urethane acrylate component, from 20 wt % to 60 wt % of a multifunctional epoxide component, from 1 wt % to 15 wt % of a monomer component, and from 1 wt % to 8 wt % of a photoinitiator component, based on the total weight of the composition. The urethane acrylate component includes the capping reaction product of an acrylate and an isocyanate terminated prepolymer and the isocyanate-terminated prepolymer is the reaction product of a polyisocyanate and at least one polyol having a molecular weight of at least 3000 g/mol. The multifunctional epoxide component includes one or more multifunctional epoxides. The monomer component includes at least one of a multifunctional acrylate monomer and a multifunctional vinyl ether monomer.
    Type: Application
    Filed: February 25, 2016
    Publication date: February 15, 2018
    Inventors: Christopher S. Letko, William H. Heath, Nathan Wilmot, Sven Claessens, William L. Heaner, IV, Adam C. Colson, Stephen W. King, John G. Pendergast, Jr.
  • Patent number: 9790320
    Abstract: Elastomers are formed by curing a reaction mixture that includes an polyepoxide-terminated polyether having a linear or branched polyether chain that has a molecular weight of at least 2000, at least two epoxide groups that has an epoxide equivalent weight of at least 400 2) a curing agent containing at least one polythiol compound having at least two thiol groups and an equivalent weight per thiol group of up to 500, and 3) at least one base catalyst.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: October 17, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Nicole Knight, Nathan Wilmot, Dwight D. Latham
  • Publication number: 20170283541
    Abstract: The instant invention provides an isocyanate trimerisation catalyst system, a precursor formulation, a process for trimerising isocyanates, rigid foams made therefrom, and a process for making such foams. The trimerisation catalyst system comprises: (a) a phosphatrane cation; and (b) an isocyanate-trimer inducing anion; wherein said trimerisation catalyst system has a trimerisation activation temperature in the range of equal to or less than 73° C. The precursor formulation comprises (1) at least 25 percent by weight of polyol, based on the weight of the precursor formulation; (2) less than 15 percent by weight of a trimerisation catalyst system, based on the weight of the precursor formulation, comprising; (a) a phosphatrane cation; and (c) an isocyanate-trimer inducing anion; wherein said trimerisation catalyst system has a trimerisation activation temperature in the range of equal to or less than 73° C.
    Type: Application
    Filed: June 13, 2017
    Publication date: October 5, 2017
    Applicant: Dow Global Technologies LLC
    Inventors: Phillip S. Athey, Nathan Wilmot, Richard J. Keaton, David A. Babb, Cecile Boyer, Timothy A. Morley
  • Patent number: 9771450
    Abstract: An epoxy composition that includes an epoxy-terminated prepolymer, an alkanolamine hardener having at least one hydroxyl group and an organometallic compound, where amine groups of the alkanolamine hardener react with epoxy groups of the epoxy-terminated prepolymer in a stoichiometric ratio to form a cured epoxy composition. The epoxy-terminated prepolymer is formed from a reaction product of an amine terminated polymeric polyol and a molar excess of epoxy groups in an epoxy monomer, relative to a molar amount of amine groups in the amine terminated polymeric polyol.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: September 26, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Kwanho Chang, Jia Xie, Shouren Ge, Nathan Wilmot, Rajat Duggal
  • Patent number: 9758615
    Abstract: Elastomers are prepared from a reaction mixture that contains a polyene compound, an epoxy resin, a thiol curing agent and a basic catalyst. The polyene compound has an average of at least two groups containing aliphatic carbon-carbon double bonds capable of reaction with a thiol group. At least one of said aliphatic carbon-carbon double bonds is separated from each other said aliphatic carbon-carbon double bond by an aliphatic spacer group having a weight of at least 500 atomic mass units. These elastomers are typically phase-separated materials having good elongation and tensile properties.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: September 12, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: William Heath, Phillip S. Athey, Nathan Wilmot, Harshad M. Shah, Kamesh R. Vyakaranam, Nicole Knight, Adam C. Colson
  • Patent number: 9718915
    Abstract: Polyisocyanate-based polymers are formed by curing a reaction mixture containing at least one polyisocyanate and at least one isocyanate-reactive compound having at least two isocyanate-reactive groups in the presence of a copper catalyst that contains at least one copper atom associated with a polydentate ligand that contains at least one nitrogen-containing complexing site.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: August 1, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Richard Keaton, Peter M. Margl, Duane R. Romer, Nathan Wilmot, Rajat Duggal, Rashmi Chamsarkar