Patents by Inventor Charles ZHA

Charles ZHA 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: 11746281
    Abstract: A method of making a proppant-gel matrix comprising: a) hydrating a gelling agent to form a hydrated gelling agent; b) adding a basic compound to the hydrated gelling agent to form a basic hydrated gelling agent having a pH in the range of 11.5 to 14.0; c) mixing the basic hydrated gelling agent and a proppant to form a basic hydrated gelling system; and d) adding a crosslinking agent to the basic hydrated gelling system to form the proppant-gel matrix, is disclosed. The proppant-gel matrix can then be used as a fracturing fluid in a hydraulic fracturing process.
    Type: Grant
    Filed: July 13, 2022
    Date of Patent: September 5, 2023
    Assignee: HEXION INC.
    Inventors: Charles Zha, Jan Beetge
  • Patent number: 11746101
    Abstract: Some implementations of the present disclosure prevent, reduce or at least slow equipment fouling using passivation as a treatment prior to contacting metallic components with hydrocarbon containing fluid, that is, an environment where fouling occurs. For example, one implementation includes a method of passivating heat exchangers in a SAGD process or system using the compositions and compounds of the present disclosure. The composition may be applied to a component prior to its first inclusion in an online system or following placing the system offline for maintenance. The composition may be used to treat metallic equipment surface(s), for example, via contacting them with a suspension or solution of the composition described herein, prior placing the system online. The method may further include treatment of the process fluid, for example, via injection or batch treatment of the composition with the compositions described herein into the process fluid.
    Type: Grant
    Filed: July 13, 2022
    Date of Patent: September 5, 2023
    Assignee: HEXION INC.
    Inventors: Charles Zha, Jan Beetge
  • Patent number: 11702538
    Abstract: The embodiments described herein generally relate to methods and chemical compositions for coating substrates with a composition. In one embodiment, a composition is provided including a first resin, a second resin different than the first resin, and a cross-linking agent.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: July 18, 2023
    Assignee: HEXION INC.
    Inventors: Charles Zha, Jan Beetge
  • Patent number: 11578242
    Abstract: The embodiments described herein generally relate to methods and chemical compositions for coating substrates with a composition. In one embodiment, an adhesive composition is provided comprising a reaction product of a polyacid selected from the group consisting of an aromatic polyacid, an aliphatic polyacid, an aliphatic polyacid with an aromatic group, and combinations thereof, or a diglycidyl ether; and a polyamine; and one or more compounds selected from the group consisting of a branched aliphatic acid, a cyclic aliphatic acid with a cyclic aliphatic group, a linear aliphatic, and combinations thereof. The adhesive composition may be used to cover a substrate.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: February 14, 2023
    Assignee: HEXION INC.
    Inventors: Charles Zha, Jan Beetge, Leo Elder, John W. Green
  • Patent number: 11512225
    Abstract: Compositions for dust suppression, methods for forming the compositions, and methods for using the compositions are provided. In one embodiment, the composition includes a non-sulfonated lignin and an alkylene glycol alkyl ether solvent. The compositions may be applied to an exposed surface of a substrate.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: November 29, 2022
    Assignee: HEXION INC.
    Inventors: Charles Zha, Jan Beetge
  • Publication number: 20220372307
    Abstract: Some implementations of the present disclosure prevent, reduce or at least slow equipment fouling using passivation as a treatment prior to contacting metallic components with hydrocarbon containing fluid, that is, an environment where fouling occurs. For example, one implementation includes a method of passivating heat exchangers in a SAGD process or system using the compositions and compounds of the present disclosure. The composition may be applied to a component prior to its first inclusion in an online system or following placing the system offline for maintenance. The composition may be used to treat metallic equipment surface(s), for example, via contacting them with a suspension or solution of the composition described herein, prior placing the system online. The method may further include treatment of the process fluid, for example, via injection or batch treatment of the composition with the compositions described herein into the process fluid.
    Type: Application
    Filed: July 13, 2022
    Publication date: November 24, 2022
    Inventors: Charles Zha, Jan Beetge
  • Patent number: 11492522
    Abstract: The embodiments described herein generally relate to methods and chemical compositions for coating substrates with a composition. In one embodiment, an adhesive composition is provided comprising a reaction product of a polyacid selected from the group consisting of an aromatic polyacid, an aliphatic polyacid, an aliphatic polyacid with an aromatic group, and combinations thereof, or a diglycidyl ether; and a polyamine; and one or more compounds selected from the group consisting of a branched aliphatic acid, a cyclic aliphatic acid with a cyclic aliphatic group, a linear aliphatic, and combinations thereof.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: November 8, 2022
    Assignee: HEXION INC.
    Inventors: Charles Zha, Jan Beetge, Leo Elder, John W. Green
  • Patent number: 11492544
    Abstract: The embodiments described herein generally relate to methods and chemical compositions for fracturing fluid applications. In one embodiment, a fracturing fluid composition is provided comprising a fracturing fluid and an additive composition including a reaction product of a diglycidyl ether or a polyacid selected from the group consisting of an aromatic polyacid, an aliphatic polyacid, an aliphatic polyacid with an aromatic group, and combinations thereof; and a polyamine; and one or more compounds selected from the group consisting of a branched aliphatic acid, a cyclic aliphatic acid with a cyclic aliphatic group, a linear aliphatic, and combinations thereof.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: November 8, 2022
    Assignee: HEXION INC.
    Inventors: Charles Zha, Jan Beetge
  • Publication number: 20220348820
    Abstract: A method of making a proppant-gel matrix comprising: a) hydrating a gelling agent to form a hydrated gelling agent; b) adding a basic compound to the hydrated gelling agent to form a basic hydrated gelling agent having a pH in the range of 11.5 to 14.0; c) mixing the basic hydrated gelling agent and a proppant to form a basic hydrated gelling system; and d) adding a crosslinking agent to the basic hydrated gelling system to form the proppant-gel matrix, is disclosed. The proppant-gel matrix can then be used as a fracturing fluid in a hydraulic fracturing process.
    Type: Application
    Filed: July 13, 2022
    Publication date: November 3, 2022
    Inventors: Charles ZHA, Jan BEETGE
  • Patent number: 11447689
    Abstract: A method of making a proppant-gel matrix comprising: a) hydrating a gelling agent to form a hydrated gelling agent; b) adding a basic compound to the hydrated gelling agent to form a basic hydrated gelling agent having a pH in the range of 11.5 to 14.0; c) mixing the basic hydrated gelling agent and a proppant to form a basic hydrated gelling system; and d) adding a crosslinking agent to the basic hydrated gelling system to form the proppant-gel matrix, is disclosed. The proppant-gel matrix can then be used as a fracturing fluid in a hydraulic fracturing process.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: September 20, 2022
    Assignee: HEXION INC.
    Inventors: Charles Zha, Jan Beetge
  • Patent number: 11421113
    Abstract: Some implementations of the present disclosure prevent, reduce or at least slow equipment fouling using passivation as a treatment prior to contacting metallic components with hydrocarbon containing fluid, that is, an environment where fouling occurs. For example, one implementation includes a method of passivating heat exchangers in a SAGD process or system using the compositions and compounds of the present disclosure. The composition may be applied to a component prior to its first inclusion in an online system or following placing the system offline for maintenance. The composition may be used to treat metallic equipment surface(s), for example, via contacting them with a suspension or solution of the composition described herein, prior placing the system online. The method may further include treatment of the process fluid, for example, via injection or batch treatment of the composition with the compositions described herein into the process fluid.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: August 23, 2022
    Assignee: HEXION INC.
    Inventors: Charles Zha, Jan Beetge
  • Publication number: 20210095186
    Abstract: A method of making a proppant-gel matrix comprising: a) hydrating a gelling agent to form a hydrated gelling agent; b) adding a basic compound to the hydrated gelling agent to form a basic hydrated gelling agent having a pH in the range of 11.5 to 14.0; c) mixing the basic hydrated gelling agent and a proppant to form a basic hydrated gelling system; and d) adding a crosslinking agent to the basic hydrated gelling system to form the proppant-gel matrix, is disclosed. The proppant-gel matrix can then be used as a fracturing fluid in a hydraulic fracturing process.
    Type: Application
    Filed: December 11, 2020
    Publication date: April 1, 2021
    Inventors: Charles ZHA, Jan Beetge
  • Publication number: 20210032482
    Abstract: Some implementations of the present disclosure prevent, reduce or at least slow equipment fouling using passivation as a treatment prior to contacting metallic components with hydrocarbon containing fluid, that is, an environment where fouling occurs. For example, one implementation includes a method of passivating heat exchangers in a SAGD process or system using the compositions and compounds of the present disclosure. The composition may be applied to a component prior to its first inclusion in an online system or following placing the system offline for maintenance. The composition may be used to treat metallic equipment surface(s), for example, via contacting them with a suspension or solution of the composition described herein, prior placing the system online. The method may further include treatment of the process fluid, for example, via injection or batch treatment of the composition with the compositions described herein into the process fluid.
    Type: Application
    Filed: October 16, 2020
    Publication date: February 4, 2021
    Inventors: Charles ZHA, Jan Beetge
  • Patent number: 10883041
    Abstract: A method of making a proppant-gel matrix comprising: a) hydrating a gelling agent to form a hydrated gelling agent; b) adding a basic compound to the hydrated gelling agent to form a basic hydrated gelling agent having a pH in the range of 11.5 to 14.0; c) mixing the basic hydrated gelling agent and a proppant to form a basic hydrated gelling system; and d) adding a crosslinking agent to the basic hydrated gelling system to form the proppant-gel matrix, is disclosed. The proppant-gel matrix can then be used as a fracturing fluid in a hydraulic fracturing process.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: January 5, 2021
    Assignee: HEXION INC.
    Inventors: Charles Zha, Jan Beetge
  • Patent number: 10836916
    Abstract: Some implementations of the present disclosure prevent, reduce or at least slow equipment fouling using passivation as a treatment prior to contacting metallic components with hydrocarbon containing fluid, that is, an environment where fouling occurs. For example, one implementation includes a method of passivating heat exchangers in a SAGD process or system using the compositions and compounds of the present disclosure. The composition may be applied to a component prior to its first inclusion in an online system or following placing the system offline for maintenance. The composition may be used to treat metallic equipment surface(s), for example, via contacting them with a suspension or solution of the composition described herein, prior placing the system online. The method may further include treatment of the process fluid, for example, via injection or batch treatment of the composition with the compositions described herein into the process fluid.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: November 17, 2020
    Assignee: HEXION INC.
    Inventors: Charles Zha, Jan Beetge
  • Publication number: 20200308394
    Abstract: The embodiments described herein generally relate to methods and chemical compositions for coating substrates with a composition. In one embodiment, a composition is provided including a first resin, a second resin different than the first resin, and a cross-linking agent.
    Type: Application
    Filed: February 14, 2020
    Publication date: October 1, 2020
    Inventors: Charles ZHA, Jan BEETGE
  • Publication number: 20200140719
    Abstract: Compositions for dust suppression, methods for forming the compositions, and methods for using the compositions are provided. In one embodiment, the composition includes a non-sulfonated lignin and an alkylene glycol alkyl ether solvent. The compositions may be applied to an exposed surface of a substrate.
    Type: Application
    Filed: November 7, 2018
    Publication date: May 7, 2020
    Inventors: Charles Zha, Jan Beetge
  • Publication number: 20180346799
    Abstract: A method of making a proppant-gel matrix comprising: a) hydrating a gelling agent to form a hydrated gelling agent; b) adding a basic compound to the hydrated gelling agent to form a basic hydrated gelling agent having a pH in the range of 11.5 to 14.0; c) mixing the basic hydrated gelling agent and a proppant to form a basic hydrated gelling system; and d) adding a crosslinking agent to the basic hydrated gelling system to form the proppant-gel matrix, is disclosed. The proppant-gel matrix can then be used as a fracturing fluid in a hydraulic fracturing process.
    Type: Application
    Filed: June 2, 2017
    Publication date: December 6, 2018
    Inventors: Charles ZHA, Jan BEETGE
  • Publication number: 20180030339
    Abstract: The embodiments described herein generally relate to methods and chemical compositions for fracturing fluid applications. In one embodiment, a fracturing fluid composition is provided comprising a fracturing fluid and an additive composition including a reaction product of a diglycidyl ether or a polyacid selected from the group consisting of an aromatic polyacid, an aliphatic polyacid, an aliphatic polyacid with an aromatic group, and combinations thereof; and a polyamine; and one or more compounds selected from the group consisting of a branched aliphatic acid, a cyclic aliphatic acid with a cyclic aliphatic group, a linear aliphatic, and combinations thereof.
    Type: Application
    Filed: October 11, 2017
    Publication date: February 1, 2018
    Inventors: Charles ZHA, Jan Beetge
  • Publication number: 20170369770
    Abstract: The embodiments described herein generally relate to methods and chemical compositions for coating substrates with a composition. In one embodiment, an adhesive composition is provided comprising a reaction product of a polyacid selected from the group consisting of an aromatic polyacid, an aliphatic polyacid, an aliphatic polyacid with an aromatic group, and combinations thereof, or a diglycidyl ether; and a polyamine; and one or more compounds selected from the group consisting of a branched aliphatic acid, a cyclic aliphatic acid with a cyclic aliphatic group, a linear aliphatic, and combinations thereof. The adhesive composition may be used to cover a substrate.
    Type: Application
    Filed: June 21, 2017
    Publication date: December 28, 2017
    Inventors: Charles ZHA, Jan Beetge, Leo Elder, John W. Green