Patents by Inventor John W. Hull, Jr.

John W. Hull, Jr. 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: 10851247
    Abstract: The present invention relates to a composition comprising triethylene glycol disorbate and triethylene glycol monosorbate, at a disorbate to monosorbate weight-to-weight ratio of from 19:1 to 99:1. The composition of the present invention is useful as a low VOC coalescent in coatings formulations.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: December 1, 2020
    Assignees: Dow Global Technologies LLC, Rohm and Haas Company
    Inventors: Jiguang Zhang, Bo Lv, Selvanathan Arumugam, John Ell, Nicole Hewlett, John W. Hull, Jr., Wei Wang, Brandon Rowe
  • Patent number: 10781271
    Abstract: Conjugated diene polymers such as a styrene-butadiene copolymer are sequentially brominated by reaction with a quaternary ammonium tribromide or quaternary phosphonium tribromide and halohydrated by reaction with an N-haloimide compound. This produces a brominated and halohydrated polymer with very good thermal stability. The product is useful as a flame retardant in a variety of polymer systems.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: September 22, 2020
    Assignee: DDP SPECIALTY ELECTRONIC MATERIALS US, INC.
    Inventors: John W. Hull, Jr., Shari Kram, Michal Elizabeth Porter, William G. Stobby
  • Patent number: 10717817
    Abstract: A process to prepare polycarbamate comprising adding urea to a polyol in the presence of at least one catalyst selected from the group consisting of compounds having the following formula MmZn; wherein M is a divalent metal, and Z is an anionic functionality or a functionality capable of forming a covalent bond with M and wherein n times a valence number of Z equals X and m times two equals Y wherein the absolute value of X equals the absolute value of Y is provided. Also provided are a polycarbamate produced according to the process and a coating composition comprising the polycarbamate.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: July 21, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Xinrui Yu, Yiyong He, John W. Hull, Jr., Daryoosh Beigzadeh, Duane R. Romer, Thomas P. Clark, Peter Margl, Congcong Lu
  • Patent number: 10604626
    Abstract: A first process to produce polycarbamate comprising providing urea in liquid form; and adding the liquid urea to a polyol is provided. A second process for producing polycarbamate comprising adding solid urea to a polyol in liquid form to form a reaction mixture is provided. Also provided is a reaction product produced by the first process or second process.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: March 31, 2020
    Assignee: Dow Global Technologies, LLC
    Inventors: Xinrui Yu, Yiyong He, John W. Hull, Jr., Paul Foley
  • Publication number: 20200002442
    Abstract: Conjugated diene polymers such as a styrene-butadiene copolymer are sequentially brominated by reaction with a quaternary ammonium tribromide or quaternary phosphonium tribromide and halohydrated by reaction with an N-haloimide compound. This produces a brominated and halohydrated polymer with very good thermal stability. The product is useful as a flame retardant in a variety of polymer systems.
    Type: Application
    Filed: September 13, 2019
    Publication date: January 2, 2020
    Inventors: John W. Hull, JR., Shari Kram, Michal Elizabeth Porter, William G. Stobby
  • Patent number: 10457751
    Abstract: Conjugated diene polymers such as a styrene-butadiene copolymer are sequentially brominated by reaction with a quaternary ammonium tribromide or quaternary phosphonium tribromide and halohydrated by reaction with an N-haloimide compound. This produces a brominated and halohydrated polymer with very good thermal stability. The product is useful as a flame retardant in a variety of polymer systems.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: October 29, 2019
    Assignee: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: John W. Hull, Jr., Shari Kram, Michal Elizabeth Porter, William G. Stobby
  • Patent number: 10343983
    Abstract: A polycarbamate comprising having less than 5 wt % total of biuret, cyanuric acid, and polyallophanate; and has a Gardner level of equal or greater than 3 is provided. A coating comprising the polycarbamate is also provided.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: July 9, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Xinrui Yu, Yiyong He, John W. Hull, Jr., Daryoosh Beigzadeh, Duane R. Romer, Thomas P. Clark, Peter Margl, Congcong Lu
  • Publication number: 20190085169
    Abstract: The present invention relates to a composition comprising triethylene glycol disorbate and triethylene glycol monosorbate, at a disorbate to monosorbate weight-to-weight ratio of from 19:1 to 99:1. The composition of the present invention is useful as a low VOC coalescent in coatings formulations.
    Type: Application
    Filed: February 19, 2016
    Publication date: March 21, 2019
    Inventors: Jiguang Zhang, Bo Lv, Selvanathan Arumugam, John Ell, Nicole Hewlett, John W. Hull, JR., Wei Wang, Brandon Rowe
  • Patent number: 10131746
    Abstract: A process to prepare polycarbamate comprising adding urea to a polyol in the presence of at least one catalyst selected from the group consisting of compounds having the following formula MmZn; wherein M is a tetravalent metal, and Z is an anionic functionality or a functionality capable of forming a covalent bond with M and wherein n times a valence number of Z equals X and m times four equals Y wherein the absolute value of X equals the absolute value of Y is provided. Also provided are a polycarbamate produced according to the process and a coating composition comprising the polycarbamate.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: November 20, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Xinrui Yu, Yiyong He, John W. Hull, Jr., Daryoosh Beigzadeh, Duane R. Romer, Thomas P. Clark, Peter Margl, Congcong Lu
  • Publication number: 20180265458
    Abstract: A process to prepare polycarbamate comprising adding urea to a polyol in the presence of at least one catalyst selected from the group consisting of compounds having the following formula MmZn; wherein M is a trivalent metal, and Z is an anionic functionality or a functionality capable of forming a covalent bond with M and wherein n times a valence number of Z equals X and m times three equals Y wherein the absolute value of X equals the absolute value of Y is provided. Also provided are a polycarbamate produced according to the process and a coating composition comprising the polycarbamate.
    Type: Application
    Filed: May 22, 2018
    Publication date: September 20, 2018
    Inventors: Xinrui Yu, Yiyong He, John W. Hull, JR., Daryoosh Beigzadeh, Duane R. Romer, Thomas P. Clark, Peter Margl, Congcong Lu
  • Publication number: 20180258224
    Abstract: A process to prepare polycarbamate comprising adding urea to a polyol in the presence of at least one catalyst selected from the group consisting of compounds having the following formula MmZn; wherein M is a divalent metal, and Z is an anionic functionality or a functionality capable of forming a covalent bond with M and wherein n times a valence number of Z equals X and m times two equals Y wherein the absolute value of X equals the absolute value of Y is provided. Also provided are a polycarbamate produced according to the process and a coating composition comprising the polycarbamate.
    Type: Application
    Filed: May 16, 2018
    Publication date: September 13, 2018
    Inventors: Xinrui Yu, Yiyong He, John W. Hull, JR., Daryoosh Beigzadeh, Duane R. Romer, Thomas P. Clark, Peter Margl, Congcong Lu
  • Patent number: 10005751
    Abstract: The present disclosure provides a process for the production of 4-azidosulfonylphthalic anhydride. In an embodiment, a process is provided and includes chlorinating 4-sulfophthalic acid trisodium salt (1), under solvent reaction conditions, to form a dissolved 4-chlorosulfonylphthalic anhydride (2) and an insoluble sodium chloride. The process includes first removing the insoluble sodium chloride from the dissolved 4-chlorosulfonylphthalic anhydride to form an isolated 4-chlorosulfonylphthalic anhydride. The process includes reacting, under solvent reaction conditions, the isolated 4-chlorosulfonylphthalic anhydride with sodium azide to form a dissolved 4-azidosulfonylphthalic anhydride and an insoluble sodium chloride. The process includes second removing the insoluble sodium chloride from the dissolved 4-azidosulfonylphthalic anhydride to form an isolated 4-azidosulfonylphthalic anhydride.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: June 26, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Matthew J. Jansma, Michael F. Gullo, John W. Hull, Jr.
  • Patent number: 10005723
    Abstract: A process to prepare polycarbamate comprising adding urea to a polyol in the presence of at least one catalyst selected from the group consisting of compounds having the following formula MmZn; wherein M is a trivalent metal, and Z is an anionic functionality or a functionality capable of forming a covalent bond with M and wherein n times a valence number of Z equals X and m times three equals Y wherein the absolute value of X equals the absolute value of Y is provided. Also provided are a polycarbamate produced according to the process and a coating composition comprising the polycarbamate.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: June 26, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Xinrui Yu, Yiyong He, John W. Hull, Jr., Daryoosh Beigzadeh, Duane Romer, Thomas Clark, Peter Margl, Congcong Lu
  • Patent number: 10000610
    Abstract: A process to prepare polycarbamate comprising adding urea to a polyol in the presence of at least one catalyst selected from the group consisting of compounds having the following formula MmZn; wherein M is a divalent metal, and Z is an anionic functionality or a functionality capable of forming a covalent bond with M and wherein n times a valence number of Z equals X and m times two equals Y wherein the absolute value of X equals the absolute value of Y is provided. Also provided are a polycarbamate produced according to the process and a coating composition comprising the polycarbamate.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: June 19, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Xinrui Yu, Yiyong He, John W. Hull, Jr., Daryoosh Beigzadeh, Duane R. Romer, Thomas P. Clark, Peter Margl, Congcong Lu
  • Publication number: 20180009947
    Abstract: A first process to produce polycarbamate comprising providing urea in liquid form; and adding the liquid urea to a polyol is provided. A second process for producing polycarbamate comprising adding solid urea to a polyol in liquid form to form a reaction mixture is provided. Also provided is a reaction product produced by the first process or second process.
    Type: Application
    Filed: September 22, 2017
    Publication date: January 11, 2018
    Inventors: Xinrui Yu, Yiyong He, John W. Hull, JR., Paul Foley
  • Publication number: 20180002455
    Abstract: Conjugated diene polymers such as a styrene-butadiene copolymer are sequentially brominated by reaction with a quaternary ammonium tribromide or quaternary phosphonium tribromide and halohydrated by reaction with an N-haloimide compound. This produces a brominated and halohydrated polymer with very good thermal stability. The product is useful as a flame retardant in a variety of polymer systems.
    Type: Application
    Filed: January 27, 2016
    Publication date: January 4, 2018
    Applicant: Dow Global Technologies LLC
    Inventors: John W. Hull, JR., Shari Kram, Michal Elizabeth Porter, William G. Stobby
  • Publication number: 20170369464
    Abstract: The present disclosure provides a process for the production of 4-azidosulfonylphthalic anhydride. In an embodiment, a process is provided and includes chlorinating 4-sulfophthalic acid trisodium salt (1), under solvent reaction conditions, to form a dissolved 4-chlorosulfonylphthalic anhydride (2) and an insoluble sodium chloride. The process includes first removing the insoluble sodium chloride from the dissolved 4-chlorosulfonylphthalic anhydride to form an isolated 4-chlorosulfonylphthalic anhydride. The process includes reacting, under solvent reaction conditions, the isolated 4-chlorosulfonylphthalic anhydride with sodium azide to form a dissolved 4-azidosulfonylphthalic anhydride and an insoluble sodium chloride. The process includes second removing the insoluble sodium chloride from the dissolved 4-azidosulfonylphthalic anhydride to form an isolated 4-azidosulfonylphthalic anhydride.
    Type: Application
    Filed: December 28, 2015
    Publication date: December 28, 2017
    Inventors: Matthew J. Jansma, Michael F. Gullo, John W. Hull, Jr.
  • Patent number: 9796815
    Abstract: A first process to produce polycarbamate comprising providing urea in liquid form; and adding the liquid urea to a polyol is provided. A second process for producing polycarbamate comprising adding solid urea to a polyol in liquid form to form a reaction mixture is provided. Also provided is a reaction product produced by the first process or second process.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: October 24, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Xinrui Yu, Yiyong He, John W. Hull, Jr., Paul Foley
  • Patent number: 9758611
    Abstract: Brominated styrene-butadiene copolymers are recovered from solution in an organic solvent. The copolymer solution is mixed with a liquid non-solvent in the presence of a suspension stabilizer to form a dispersion. The dispersion is heated to vaporize the organic solvent. This process produces precipitated copolymer particles having useful particle sizes, which can be easily used in downstream applications.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: September 12, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Daniel A. Beaudoin, John W. Hull, Jr., Michal E. Porter, William G. Stobby, Gerald F. Billovitz, Timothy J. Young
  • Publication number: 20160304649
    Abstract: Brominated styrene-butadiene copolymers are recovered from solution in an organic solvent. The copolymer solution is mixed with a liquid non-solvent in the presence of a suspension stabilizer to form a dispersion. The dispersion is heated to vaporize the organic solvent. This process produces precipitated copolymer particles having useful particle sizes, which can be easily used in downstream applications.
    Type: Application
    Filed: December 12, 2014
    Publication date: October 20, 2016
    Inventors: Daniel A. Beaudoin, John W. Hull, Jr., Michal E. Porter, William G. Stobby, Gerald F. Billovitz, Timothy J. Young