Patents by Inventor Chitai C. Yang

Chitai C. Yang 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).

  • POLYLACTIDE FORMULATION FOR IMPROVED EXTRUSION PROCESSING
    Publication number: 20230374734
    Abstract: A paperboard structure includes a paperboard substrate having a first surface and an opposed second surface. A biopolymer coating is applied by extrusion or co-extrusion to at least one of the first surface and the second surface. The biopolymer coating includes an inorganic melt curtain stabilizer, a polylactide resin having a melt flow index, and an organic polymeric chain extender.
    Type: Application
    Filed: December 8, 2021
    Publication date: November 23, 2023
    Applicant: WestRock MWV, LLC
    Inventors: Rahul Bhardwaj, Chitai C. Yang, Justin L. Bennett, Courtney R. Johnson
  • HIGH BARRIER CELLULOSIC STRUCTURE AND CELLULOSIC CONTAINER
    Publication number: 20230115424
    Abstract: A cellulosic structure including a cellulosic board substrate, a metal oxide layer positioned over the cellulosic board substrate, and a tie layer between the cellulosic board substrate and the metal oxide layer.
    Type: Application
    Filed: October 12, 2022
    Publication date: April 13, 2023
    Inventors: Rahul BHARDWAJ, Chitai C. YANG, Justin L. BENNETT, Courtney JOHNSON, Steven G. BUSHHOUSE, Meredith W. ALLIN
  • COMPOSTABLE PAPERBOARD STRUCTURE AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20220275585
    Abstract: A paperboard structure including a paperboard substrate having a first major side and a second major side opposed from the first major side, and a coating layer on the first major side, the coating layer includes a polymer and talc, wherein the polymer includes at least one of poly(butylene succinate) and poly(butylene succinate-co-adipate).
    Type: Application
    Filed: June 10, 2020
    Publication date: September 1, 2022
    Inventors: Chitai C. YANG, Rahul BHARDWAJ, Chester E. ALKIEWICZ
  • SEALABLE EXTRUSION COATING WITH IMPROVED PROCESSING AND PROPERTIES
    Publication number: 20220250366
    Abstract: A laminate structure including a paperboard substrate and a sealable layer that forms a laminate outer surface. The sealable layer may include a blend of modified ethylene methyl acrylate and one or more polyethylenes.
    Type: Application
    Filed: June 29, 2020
    Publication date: August 11, 2022
    Inventors: Rahul BHARDWAJ, Chitai C. YANG, Chester E. ALKIEWICZ, Matthew S. CAMERON
  • Heat sealable coating with filler
    Patent number: 11255050
    Abstract: A coating for paperboard includes polyethylene outer layers and a polyethylene inner layer with calcium carbonate filler. In addition to the lower cost, benefits include a surprising better heat sealing behavior compared with a coating of polyethylene alone.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: February 22, 2022
    Assignee: WESTROCK MWV, LLC
    Inventors: Chitai C. Yang, Rahul Bhardwaj, Chester E. Alkiewicz
  • HEAT SEALABLE COATING WITH FILLER
    Publication number: 20200354897
    Abstract: A coating for paperboard includes polyethylene outer layers and a polyethylene inner layer with calcium carbonate filler. In addition to the lower cost, benefits include a surprising better heat sealing behavior compared with a coating of polyethylene alone.
    Type: Application
    Filed: July 23, 2020
    Publication date: November 12, 2020
    Inventors: Chitai C. Yang, Rahul Bhardwaj, Chester E. Alkiewicz
  • Heat sealable coating with filler
    Patent number: 10760218
    Abstract: A coating for paperboard includes polyethylene outer layers and a polyethylene inner layer with calcium carbonate filler. In addition to the lower cost, benefits include a surprising better heat sealing behavior compared with a coating of polyethylene alone.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: September 1, 2020
    Assignee: WestRock MWV, LLC
    Inventors: Chitai C. Yang, Rahul Bhardwaj, Chester E. Alkiewicz
  • Biopolymer coating for compostable paperboard packaging
    Patent number: 10655277
    Abstract: A coating for paperboard includes polylactic acid and an inorganic material. The inorganic material may be talc. The presence of the talc has a beneficial effect on extrusion processing behavior including lower melt temperature, lower head pressure, and lower motor load. Additionally, the presence of talc reduces edge weave and neck-in during extrusion coating processes.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: May 19, 2020
    Assignee: WestRock MWV, LLC
    Inventors: Rahul Bhardwaj, Chitai C. Yang, Chester E. Alkiewicz
  • PAPERBOARD, PAPERBOARD CONTAINER, AND METHOD FOR USING A PAPERBOARD ARTICLE
    Publication number: 20190009970
    Abstract: A method for using a paperboard article includes heating a paperboard article by way of microwave radiation. The paperboard article includes a paperboard substrate having a first major side and a second major side and one or more high-density polyethylene layers on at least one of the first major side and the second major side of the paperboard substrate.
    Type: Application
    Filed: June 29, 2018
    Publication date: January 10, 2019
    Inventors: Chitai C. Yang, Rahul Bhardwaj, Chester E. Alkiewicz
  • HEAT SEALABLE COATING WITH FILLER
    Publication number: 20180347116
    Abstract: A coating for paperboard includes polyethylene outer layers and a polyethylene inner layer with calcium carbonate filler. In addition to the lower cost, benefits include a surprising better heat sealing behavior compared with a coating of polyethylene alone.
    Type: Application
    Filed: November 16, 2016
    Publication date: December 6, 2018
    Inventors: Chitai C. Yang, Rahul Bhardwaj, Chester E. Alkiewicz
  • BIOPOLYMER COATING FOR COMPOSTABLE PAPERBOARD PACKAGING
    Publication number: 20180327976
    Abstract: A coating for paperboard includes polylactic acid and an inorganic material. The inorganic material may be talc. The presence of the talc has a beneficial effect on extrusion processing behavior including lower melt temperature, lower head pressure, and lower motor load. Additionally, the presence of talc reduces edge weave and neck-in during extrusion coating processes.
    Type: Application
    Filed: November 16, 2016
    Publication date: November 15, 2018
    Inventors: Rahul Bhardwaj, Chitai C. Yang, Chester E. Alkiewicz
  • MULTIFUNCTIONAL PAPERBOARD STRUCTURE
    Publication number: 20180257349
    Abstract: A multi-layer paperboard structure may be heat sealed to form a packaging material. The paperboard structure exhibits good sealing strength and improved anti-blocking behavior. The structure may be self-sealed or sealed to plastic blister materials.
    Type: Application
    Filed: November 3, 2016
    Publication date: September 13, 2018
    Inventors: Rahul Bhardwaj, Chitai C. Yang, Chester E. Alkiewicz, Matthew S. Cameron