Patents by Inventor Sheung Yin LI

Sheung Yin LI 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).

  • Built-in antimicrobial plastic resins and methods for making the same
    Patent number: 11160276
    Abstract: Provided herein is a method for preparing antimicrobial thermoplastic resins and products thereof.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: November 2, 2021
    Assignee: Nano and Advanced Materials Institute Limited
    Inventors: Wenjun Meng, Yueying Chen, Yui Ting Richard Lau, Sau Kuen Connie Kwok, Sheung Yin Li
  • BUILT-IN ANTIMICROBIAL PLASTIC RESINS AND METHODS FOR MAKING THE SAME
    Publication number: 20200107545
    Abstract: Provided herein is a method for preparing antimicrobial thermoplastic resins and products thereof.
    Type: Application
    Filed: December 11, 2019
    Publication date: April 9, 2020
    Inventors: Wenjun MENG, Yueying CHEN, Yiu Ting Richard LAU, Sau Kuen Connie KWOK, Sheung Yin LI
  • Built-in antimicrobial plastic resins and methods for making the same
    Patent number: 10548314
    Abstract: A built-in and process-adaptive formulation of antimicrobial commodity thermoplastic resins with mixed compositions comprising of a polymer, a backbone linker, and a non-labile antifouling and biocompatible coupling agent which is melt-processable and enabled to be manufactured into finished products in the form of solid, monolith, tube, composite, fiber, film, sheet and varnish without the prerequisite of biocides or antimicrobial additives is disclosed. The said formulation is adapted to thermoforming and thermal curing processes including but not limited to melt compounding, spinning, extrusion, molding, compression foaming and drawing. The antimicrobial property is attributed to the persistent formation of a non-stick bacteria-repellent tethered layer in which the antifouling component of the said formulation is heterogeneously phase separated and/or surface migrated to the surface after product forming in order to minimize adsorption and/or colonization of bacteria.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: February 4, 2020
    Assignee: Nano and Advanced Materials Institute Limited
    Inventors: Yiu Ting Richard Lau, Sau Kuen Connie Kwok, Wenjun Meng, Sheung Yin Li, Yueying Chen
  • Built-in antimicrobial plastic resins and methods for making the same
    Patent number: 10525614
    Abstract: A built-in and process-adaptive formulation of antimicrobial commodity thermoplastic resins with mixed compositions comprising of a polymer, a backbone linker, and a non-labile antifouling and biocompatible coupling agent which is melt-processable and enabled to be manufactured into finished products in the form of solid, monolith, tube, composite, fiber, film, sheet and varnish without the prerequisite of biocides or antimicrobial additives is disclosed. The said formulation is adapted to thermoforming and thermal curing processes including but not limited to melt compounding, spinning, extrusion, molding, compression foaming and drawing. The antimicrobial property is attributed to the persistent formation of a non-stick bacteria-repellent tethered layer in which the antifouling component of the said formulation is heterogeneously phase separated and/or surface migrated to the surface after product forming in order to minimize adsorption and/or colonization of bacteria.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: January 7, 2020
    Assignee: Nano and Advanced Materials Institute Limited
    Inventors: Yiu Ting Richard Lau, Sau Kuen Connie Kwok, Wenjun Meng, Sheung Yin Li, Yueying Chen
  • BUILT-IN ANTIMICROBIAL PLASTIC RESINS AND METHODS FOR MAKING THE SAME
    Publication number: 20170135344
    Abstract: A built-in and process-adaptive formulation of antimicrobial commodity thermoplastic resins with mixed compositions comprising of a polymer, a backbone linker, and a non-labile antifouling and biocompatible coupling agent which is melt-processable and enabled to be manufactured into finished products in the form of solid, monolith, tube, composite, fiber, film, sheet and varnish without the prerequisite of biocides or antimicrobial additives is disclosed. The said formulation is adapted to thermoforming and thermal curing processes including but not limited to melt compounding, spinning, extrusion, molding, compression foaming and drawing. The antimicrobial property is attributed to the persistent formation of a non-stick bacteria-repellent tethered layer in which the antifouling component of the said formulation is heterogeneously phase separated and/or surface migrated to the surface after product forming in order to minimize adsorption and/or colonization of bacteria.
    Type: Application
    Filed: December 19, 2016
    Publication date: May 18, 2017
    Inventors: Yiu Tin Richard LAU, Sau Kuen Connie KWOK, Wenjun MENG, Sheung Yin LI, Yueying CHEN
  • BUILT-IN ANTIMICROBIAL PLASTIC RESINS AND METHODS FOR MAKING THE SAME
    Publication number: 20170129139
    Abstract: A built-in and process-adaptive formulation of antimicrobial commodity thermoplastic resins with mixed compositions comprising of a polymer, a backbone linker, and a non-labile antifouling and biocompatible coupling agent which is melt-processable and enabled to be manufactured into finished products in the form of solid, monolith, tube, composite, fiber, film, sheet and varnish without the prerequisite of biocides or antimicrobial additives is disclosed. The said formulation is adapted to thermoforming and thermal curing processes including but not limited to melt compounding, spinning, extrusion, molding, compression foaming and drawing. The antimicrobial property is attributed to the persistent formation of a non-stick bacteria-repellent tethered layer in which the antifouling component of the said formulation is heterogeneously phase separated and/or surface migrated to the surface after product forming in order to minimize adsorption and/or colonization of bacteria.
    Type: Application
    Filed: January 8, 2016
    Publication date: May 11, 2017
    Inventors: Yiu Ting Richard LAU, Sau Kuen Connie KWOK, Wenjun MENG, Sheung Yin LI, Yueying CHEN