Patents by Inventor Xuedong Song

Xuedong Song 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: 12239959
    Abstract: Described herein are super absorbent materials (SAMs) and methods of making SAMs. The super absorbent materials are copolymerized with select redox active inorganic salts in a staged polymerization process. The copolymer-based super absorbent materials have significantly improved absorbance properties. The compositions and methods described herein are useful in a variety of absorbent products.
    Type: Grant
    Filed: February 28, 2022
    Date of Patent: March 4, 2025
    Assignee: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventors: Kaiyuan Yang, Xuedong Song, Denise V. Taylor, Richmond R. Cohen
  • Patent number: 12239746
    Abstract: A method for increasing absorbent capacity of a superabsorbent material (SAM) by treating the SAM with a selected multifunctional chemical agent (MCA) or a combination of a plurality of selected MCAs is described herein. The selected MCA(s) may interact with the polymer chain of the SAM through one or a plurality of mechanisms that enhance the absorbent capacity of the SAM. In various preferred embodiments, SAMs include polyelectrolytes that are made from polymerizing mixtures of acrylic acid monomer and acrylic acid sodium salt, and L-arginine or lysine is selected as the MCA.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: March 4, 2025
    Assignee: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventors: Kaiyuan Yang, Xuedong Song
  • Patent number: 12233400
    Abstract: Described herein are super absorbent materials (SAMs) and methods of making SAMs. The SAMs are copolymerized after formation of monomer complexes to incorporate select inorganic salts into the polymerized SAMS. The SAMs are copolymerized with select stable inorganic salts and/or with select redox active inorganic salts. The SAMS are copolymerized in a single-step polymerization process or in a staged polymerization process. The copolymer-based SAMs have significantly improved absorbance properties. The compositions and methods described herein are useful in a variety of absorbent products.
    Type: Grant
    Filed: February 28, 2022
    Date of Patent: February 25, 2025
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Kaiyuan Yang, Xuedong Song, Teresa E. Peterson, Wade R. Thompson
  • Publication number: 20240416320
    Abstract: Described herein are super absorbent materials (SAMs) and methods of making SAMs. The super absorbent materials are copolymerized with select redox active inorganic salts in a staged polymerization process. The copolymer-based super absorbent materials have significantly improved absorbance properties. The compositions and methods described herein are useful in a variety of absorbent products.
    Type: Application
    Filed: February 28, 2022
    Publication date: December 19, 2024
    Inventors: Kaiyuan Yang, Xuedong Song, Denise V. Taylor, Richmond R. Cohen
  • Publication number: 20240416321
    Abstract: Described herein are super absorbent materials (SAMs) and methods of making SAMs. The SAVs are copolymerized after formation of monomer complexes to incorporate select inorganic salts into the polymerized SAMS. The SAMs are copolymerized with select stable inorganic salts and/or with select redox active inorganic salts. The SAMS are copolymerized in a single-step polymerization process or in a staged polymerization process. The copolymer-based SAMs have significantly improved absorbance properties. The compositions and methods described herein are useful in a variety of absorbent products.
    Type: Application
    Filed: February 28, 2022
    Publication date: December 19, 2024
    Inventors: Kaiyuan Yang, Xuedong Song, Teresa E. Peterson, Wade R. Thompson
  • Publication number: 20240381869
    Abstract: A sanitizing composition is provided. The sanitizing composition includes including 0.1 wt. % to about 10 wt. % of one or more antimicrobial, antifungal, and/or antiviral agents and 0.001 wt. % to about 10 wt. % of one or more volatile acids or volatile bases. The sanitizing composition includes 0.0001 wt. % to about 5 wt. % of one or more pH indicators having a color transition pH ranging from about 2 to about 6.5 or a pH indicator having a color transition ranging from about 7.5 to about 12. The sanitizing composition includes 80 wt. % to about 98 wt. % of one or more volatile solvents. Optionally, the sanitizing composition includes one or more additives. Porous, flexible, substrates pre-saturated with the sanitizing composition and methods of use are also provided.
    Type: Application
    Filed: September 23, 2021
    Publication date: November 21, 2024
    Inventors: Xuedong Song, Ning Yang
  • Patent number: 12138354
    Abstract: The present invention discloses a method for increasing absorbent capacity of a superabsorbent material (SAM) by treating the SAM with a selected salt or a combination of such salts. The selected salt(s) may interact with the polymer chain of the SAM through one or more absorbent capacity enhancement mechanisms. The absorbent capacity enhancement mechanism(s) between selected salt(s) and the SAM may lead to greater absorbent capacity of the SAM.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: November 12, 2024
    Assignee: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventors: Kaiyuan Yang, Xuedong Song
  • Patent number: 12102516
    Abstract: A disposable absorbent product includes a double-network polymer element including a cross-linked, covalently-bonded polymer and a reversible, partially ionicly-bonded polymer, wherein the element has a moisture level less than or equal to 15 percent of the total weight of the element, wherein the element comprises a latent retractive force, and wherein the element is configured to release the retractive force to achieve a dimensional change in the disposable absorbent product with exposure of the element to an aqueous liquid. Manufacturing a disposable absorbent product includes producing a double-network hydrogel; elongating by force and dehydrating while still elongated the double-network hydrogel, wherein elongating and dehydrating captures a latent retractive force in the element; and positioning the element in a disposable absorbent product such that a dimensional change in the disposable absorbent product is achieved with exposure of the element to an aqueous liquid.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: October 1, 2024
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Jin Chen, Xuedong Song, William Clayton Bunyard, Andrew M. Long
  • Patent number: 12076445
    Abstract: A substrate includes a double-network polymer system including a cross-linked, covalently-bonded polymer and a reversible, partially ionicly-bonded polymer, wherein the substrate has a moisture level less than or equal to 15 percent of the total weight of the substrate, and wherein the substrate includes a latent retractive force. A method for manufacturing a substrate includes producing a double-network hydrogel including a cross-linked, covalently-bonded polymer and a reversible, ionicly-bonded polymer; elongating by force the double-network hydrogel in at least one direction; dehydrating while still elongated the double-network hydrogel to form a substantially-dehydrated double-network polymer system; and releasing the force to produce the substrate.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: September 3, 2024
    Inventor: Xuedong Song
  • Publication number: 20230383036
    Abstract: Described herein are novel super absorbent materials. The super absorbent materials are copolymerized with strong or super strong ionizable monomers and bulky counter ions or select metal salts. The copolymer-based super absorbent materials have significantly improved absorbance properties. The compositions and methods described herein are useful in a variety of absorbent products.
    Type: Application
    Filed: September 28, 2020
    Publication date: November 30, 2023
    Inventors: Kaiyuan YANG, Xuedong SONG
  • Patent number: 11786884
    Abstract: Superabsorbent polymers are made of copolymers including a major portion of low molecular weight monomers each individually including a backbone and a charged moiety, a minor portion of high molecular weight monomers each individually including a backbone and a charged moiety, and optionally a crosslinker. The copolymer-based superabsorbent polymers have significantly improved absorbency under load.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: October 17, 2023
    Assignee: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventors: Xuedong Song, Kaiyuan Yang, Todd Ryan Hoare, Zohreh Jomeh Farsangi
  • Publication number: 20230130584
    Abstract: Described herein are superabsorbent polymers that are made of copolymers of multiple charged monomers, where the charged moieties of different charged monomers have different distances from copolymer backbones. The copolymer-based superabsorbent polymers have significantly improved absorbency under load. The compositions and methods described herein are useful in a variety of absorbent products.
    Type: Application
    Filed: April 30, 2020
    Publication date: April 27, 2023
    Inventors: Xuedong SONG, Kaiyuan YANG, Todd Ryan Hoare, Zohreh Jomeh Farsangi
  • Publication number: 20230118553
    Abstract: Described herein are superabsorbent polymers that are made of copolymers of charged monomer and neutral monomers, where the neutral monomers are alkyl or aryl end-capped neutral and hydrophilic monomers that lack free hydroxyl groups and have a water solubility of at least 200 mg/mL. The copolymer-based superabsorbent polymers have significantly improved absorbency under load. The compositions and methods described herein are useful in a variety of absorbent products.
    Type: Application
    Filed: April 30, 2020
    Publication date: April 20, 2023
    Inventors: Xuedong SONG, Kaiyuan YANG, Todd Ryan Hoare, Zohreh Jomeh Farsangi
  • Patent number: 11602730
    Abstract: A substrate includes a double-network polymer system including a cross-linked, covalently-bonded polymer and a reversible, partially ionicly-bonded polymer, wherein the substrate has a moisture level less than or equal to 15 percent of the total weight of the substrate, wherein the substrate is porous, and wherein the substrate includes a latent retractive force. A method for manufacturing a substrate includes producing a double-network hydrogel including a cross-linked, covalently-bonded polymer and a reversible, ionicly-bonded polymer; elongating by force the double-network hydrogel in at least one direction; treating the double-network hydrogel with an organic solvent with a volatile and water-miscible organic solvent to replace a majority of water within the double-network hydrogel; evaporating the organic solvent while the double-network hydrogel is still elongated to form a substantially-dried double-network polymer system; and releasing the force to produce the substrate.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: March 14, 2023
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventor: Xuedong Song
  • Publication number: 20220370678
    Abstract: The present invention discloses a method for increasing absorbent capacity of a superabsorbent material (SAM) by treating the SAM with a selected salt or a combination of such salts. The selected salt(s) may interact with the polymer chain of the SAM through one or more absorbent capacity enhancement mechanisms. The absorbent capacity enhancement mechanism(s) between selected salt(s) and the SAM may lead to greater absorbent capacity of the SAM.
    Type: Application
    Filed: October 23, 2019
    Publication date: November 24, 2022
    Inventors: Kaiyuan Yang, Xuedong Song
  • Publication number: 20220296767
    Abstract: The present invention discloses a method for increasing absorbent capacity of a superabsorbent material (SAM) by treating the SAM with a selected multifunctional chemical agent (MCA) or a combination of a plurality of selected MCAs. The selected MCA(s) may interact with the polymer chain of the SAM through one or a plurality of mechanisms that enhance the absorbent capacity of the SAM. In various preferred embodiments, SAMs include polyelectrolytes that are made from polymerizing mixtures of acrylic acid monomer and acrylic acid sodium salt, and L-arginine or lysine is selected as the MCA.
    Type: Application
    Filed: October 23, 2019
    Publication date: September 22, 2022
    Inventors: Kaiyuan Yang, Xuedong Song
  • Publication number: 20210059876
    Abstract: A disposable absorbent product includes a double-network polymer element including a cross-linked, covalently-bonded polymer and a reversible, partially ionicly-bonded polymer, wherein the element has a moisture level less than or equal to 15 percent of the total weight of the element, wherein the element comprises a latent retractive force, and wherein the element is configured to release the retractive force to achieve a dimensional change in the disposable absorbent product with exposure of the element to an aqueous liquid. Manufacturing a disposable absorbent product includes producing a double-network hydrogel; elongating by force and dehydrating while still elongated the double-network hydrogel, wherein elongating and dehydrating captures a latent retractive force in the element; and positioning the element in a disposable absorbent product such that a dimensional change in the disposable absorbent product is achieved with exposure of the element to an aqueous liquid.
    Type: Application
    Filed: March 22, 2018
    Publication date: March 4, 2021
    Applicant: Kimberly-Clark Worldwide, Inc.
    Inventors: Jin Chen, Xuedong Song, William Clayton Bunyard, Andrew M. Long
  • Publication number: 20210052436
    Abstract: A wetness indicating composition can include a mixing solvent including water and a water-miscible volatile organic solvent. The wetness indicating composition can also include an amphiphilic polydiacetylene and a hydrophobic binder. In some embodiments, the wetness indicating composition can be applied to a substrate and serve as a wetness indicator for an absorbent article.
    Type: Application
    Filed: January 26, 2018
    Publication date: February 25, 2021
    Inventor: Xuedong Song
  • Patent number: 10709612
    Abstract: Odor control articles (10) including hydrophobic polymers of intrinsic porosity (HPIM) and their use in personal care products and hygienic products is disclosed. The odor control article (10) includes a HPIM and a colorant. The odor control article (10) may be applied to a substrate (11), and more specifically to a liquid absorbent member (30), to form an odor-absorbing member (20). The substrate (11) may absorb liquid. The odor-absorbing member (20) may be placed in such products as diapers (200), incontinence pads (60) and refrigerator pads. A method of making an odor control suspension with HPIMs including the use of surfactants is also disclosed. The odor control suspension may also be applied to a substrate (11).
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: July 14, 2020
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Xuedong Song, Davis Dang H. Nhan, John Gavin MacDonald, Richard Arnold Borders
  • Patent number: 10632223
    Abstract: A substrate includes a double-network polymer system including a cross-linked, covalently-bonded polymer and a reversible, partially ionicly-bonded polymer, wherein the substrate has a moisture level less than or equal to 15 percent of the total weight of the substrate, and wherein the substrate includes a latent retractive force. A method for manufacturing a substrate includes producing a double-network hydrogel including a cross-linked, covalently-bonded polymer and a reversible, ionicly-bonded polymer; elongating by force the double-network hydrogel in at least one direction; dehydrating while still elongated the double-network hydrogel to form a substantially-dehydrated double-network polymer system; and releasing the force to produce the substrate.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: April 28, 2020
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventor: Xuedong Song