Patents by Inventor Wenjun MENG
Wenjun MENG 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).
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Patent number: 12000092Abstract: A germ-repellent paper product contains a paper substrate and a germ-repellent overprint varnish. The germ-repellent overprint varnish contains a varnish and a germ-repellent agent. The germ-repellent overprint varnish is coated onto the paper substrate to form a germ-repellent paper product. A method for manufacturing such a germ-repellent paper product is also provided.Type: GrantFiled: July 19, 2021Date of Patent: June 4, 2024Assignee: MAIN CHOICE PAPER PRODUCTS LIMITEDInventors: Wenjun Meng, Pit Shing Tung, Wai Hong Yu, Mingyu Zhang
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Patent number: 11970604Abstract: A germ-repellent plastic for use in a gas pathway of a respiratory device contains an anti-biofouling compound, and a basic plastic. The anti-biofouling compound is optionally selected from the group of a polyol, a polyether polyol, a polyol derivative, and a combination thereof; or the anti-biofouling compound is selected from the group consisting of a polyether, a poly(ethylene glycol) ether, a polysorbate, and a combination thereof; or the anti-biofouling compound is selected from the group consisting of poly(ethylene glycol) sorbitan monolaurate, poly(ethylene glycol) sorbitan monooleate, poly(ethylene glycol) sorbitol hexaoleate, ceteareth, and a combination thereof. The basic plastic is selected from the group of a blend of a low-density polyethylene polymer and an ethyl vinyl acetate copolymer, a blend of a polypropylene polymer and an ethyl vinyl acetate copolymer, a blend of polyolefin elastomer polymers and a polyvinyl chloride polymer.Type: GrantFiled: April 9, 2018Date of Patent: April 30, 2024Assignee: VINCENT MEDICAL MANUFACTURING CO., LTD.Inventors: Wenjun Meng, Sau Kuen Connie Kwok, Yueying Chen, Mingyu Zhang, Kwok Fu Fu, Ching Sau Chu
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Publication number: 20240124636Abstract: The invention relates to aqueous polymer dispersions comprising polymerized units issued from the following monomers with related weight proportions based on 100 parts of weight of a)+b): a) 50 to 90% of a monoethylenically unsaturated non-ionic monomer, b) 10 to 50% of vinyl aromatic monomer or methyl methacrylate, c) 1 to 5% of a hydroxy-containing (meth)acrylate, d) 0.1 to 3% of acid monomer selected from d1) acid monomer selected from monocarboxylic or dicarboxylic acid monomers and d2) acid monomer selected from phosphorous-based or sulfur-based strong acid monomers or/and their salts, or from the mixtures of d1) and d2), e) 0.001 to 0.5% of chain transfer agent, and f) 0 to 1% one of internal crosslinker bearing at least two copolymerisable ethylenic unsaturations, the polymer having a Tg measured by DSC from ?30 to 0° C. and a gel content of 0 to 60%, formed during polymerization.Type: ApplicationFiled: December 28, 2023Publication date: April 18, 2024Inventors: Haiming CHEN, Wenjun WU, Xiangling MENG, Leo Mario SAIJA, Mario LUGLI, Hua ZHOU
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Patent number: 11948489Abstract: A display panel, a display device and a driving method. The display panel includes a display region and a peripheral region. The display region includes a subpixel unit array having a plurality of rows and a plurality of columns of subpixel units, and the peripheral region includes a gate drive circuit. The display region further includes a plurality of gate lines and a plurality of data lines. The gate drive circuit comprises a plurality of shift register units, and the plurality of gate lines are electrically connected with the plurality of shift register units. The gate drive circuit comprises two shift-register-unit scanning groups, in the shift-register-unit scanning groups, a (k+1)th shift register unit and a (k)th shift register unit form one shift register unit group.Type: GrantFiled: April 20, 2023Date of Patent: April 2, 2024Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Zhaohui Meng, Wei Sun, Wenchao Han, Hong Yang, Lin Cong, Wenjun Xiao
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Publication number: 20240043681Abstract: Provided is a germ-repellent polymer structure including a base plastic selected from polypropylene homopolymer, polypropylene impact copolymer, or acrylonitrile butadiene styrene; and a hydration layer, the hydration layer including one or more hydrophilic additives formed on the base plastic optionally in the presence of an intermediate plastic that is compatible to both the base plastic and hydrophilic additives for stabilizing the hydration layer on some base plastics. In some embodiment, the introduction of hydration layer to the base plastic through the intermediate plastic imparts germ repellency by introducing sufficient hydroxyl groups onto the surface of the base plastic in order to trap water molecules into a polymer matrix of the base plastic.Type: ApplicationFiled: December 22, 2021Publication date: February 8, 2024Inventors: Wenjun MENG, Deryck Hin Yeung LI, Jihan YI, Jingyu SHI, Kevin TSAI
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Publication number: 20230374292Abstract: A food contact safe, germ repellent plastic selected from modified thermoplastic, vulcanized silicone rubber or modified base plastic. The plastic includes an anti-biofouling agent at approximately 1 to 20 wt. % to the total weight of the plastic; and one or more components of fillers, carrier agent, mold releasing agent, curing agent, and/or oil, at approximately 0.1 to 2 wt. % for each or more of the components to the total weight of the plastic, where the anti-biofouling agent forming a hydration layer on the plastic imparts germ repellency against bacteria including Escherichia coli and Staphylococcus aureus while optical and mechanical properties including transmittance, tensile strength, impact strength, hardness, and/or heat deflection temperature of the plastic is/are changed by less than 10% after being associated with the anti-biofouling agent and the one or more of the components other than the anti-biofouling agent.Type: ApplicationFiled: December 22, 2021Publication date: November 23, 2023Inventors: Wenjun MENG, Wai Hong YU, Mingyu ZHANG, Wing Hin LEUNG, Yueying CHEN
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Publication number: 20230022618Abstract: A germ-repellent paper product contains a paper substrate and a germ-repellent overprint varnish. The germ-repellent overprint varnish contains a varnish and a germ-repellent agent. The germ-repellent overprint varnish is coated onto the paper substrate to form a germ-repellent paper product. A method for manufacturing such a germ-repellent paper product is also provided.Type: ApplicationFiled: July 19, 2021Publication date: January 26, 2023Applicant: Main Choice Paper Products LimitedInventors: Wenjun MENG, Pit Shing TUNG, Wai Hong YU, Mingyu ZHANG
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Publication number: 20220064861Abstract: A germ-repellent paper product contains a paper substrate and a germ-repellent overprint varnish. The germ-repellent overprint varnish contains a varnish and a germ-repellent agent. The germ-repellent overprint varnish is coated onto the paper substrate to form a germ-repellent paper product. A method for manufacturing such a germ-repellent paper product is also provided.Type: ApplicationFiled: April 7, 2020Publication date: March 3, 2022Applicant: Main Choice Paper Products LimitedInventors: Wenjun MENG, Pit Shing TUNG, Wai Hong YU, Mingyu ZHANG
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Patent number: 11160276Abstract: Provided herein is a method for preparing antimicrobial thermoplastic resins and products thereof.Type: GrantFiled: December 11, 2019Date of Patent: November 2, 2021Assignee: Nano and Advanced Materials Institute LimitedInventors: Wenjun Meng, Yueying Chen, Yui Ting Richard Lau, Sau Kuen Connie Kwok, Sheung Yin Li
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Publication number: 20210115200Abstract: A germ-repellent plastic contains an anti-biofouling compound, and a basic plastic. The anti-biofouling compound is optionally selected from the group of a polyol, a polyether polyol, a polyol derivative, and a combination thereof; or the anti-biofouling compound is selected from the group consisting of a polyether, a poly (ethylene glycol) ether, a polysorbate, and a combination thereof; or the anti-biofouling compound is selected from the group consisting of poly (ethylene glycol) sorbitan monolaurate, poly (ethylene glycol) sorbitan monooleate, poly (ethylene glycol) sorbitol hexaoleate, ceteareth, and a combination thereof. The basic plastic is not a blend of a low-density polyethylene polymer and an ethyl vinyl acetate copolymer, a blend of a polypropylene polymer and an ethyl vinyl acetate copolymer, a blend of polyolefin elastomer polymers and a polyvinyl chloride polymer. A method for manufacturing such a germ-repellent plastic and a germ-repellent plastic item are also described.Type: ApplicationFiled: April 9, 2018Publication date: April 22, 2021Inventors: Wenjun MENG, Sau Kuen Connie KWOK, Yueying CHEN, Mingyu ZHANG
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Publication number: 20210038854Abstract: A germ-repellent plastic for use in a gas pathway of a respiratory device contains an anti-biofouling compound, and a basic plastic. The anti-biofouling compound is optionally selected from the group of a polyol, a polyether polyol, a polyol derivative, and a combination thereof; or the anti-biofouling compound is selected from the group consisting of a polyether, a poly(ethylene glycol) ether, a polysorbate, and a combination thereof; or the anti-biofouling compound is selected from the group consisting of poly(ethylene glycol) sorbitan monolaurate, poly(ethylene glycol) sorbitan monooleate, poly(ethylene glycol) sorbitol hexaoleate, ceteareth, and a combination thereof. The basic plastic is selected from the group of a blend of a low-density polyethylene polymer and an ethyl vinyl acetate copolymer, a blend of a polypropylene polymer and an ethyl vinyl acetate copolymer, a blend of polyolefin elastomer polymers and a polyvinyl chloride polymer.Type: ApplicationFiled: April 9, 2018Publication date: February 11, 2021Inventors: Wenjun MENG, Sau Kuen Connie KWOK, Yueying CHEN, Mingyu ZHANG, Kwok Fu FU, Ching Sau CHU
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Patent number: 10836890Abstract: This invention discloses a transparent standalone resin or masterbatch concentrate composition and manufacturing method of transforming commercial transparent grade base thermoplastics into anti-biofouling resins through extrusion or any similar hot melt mixing processes. The re-compound solids enable a number of product reforming processes, including but not limited to thermoforming, profile extrusion, injection molding, blow molding, blow filming, film casting, and spinning into articles of different shapes and geometries or overmolding on plastic substrates that can resist surface adsorption of microbes, mammalian cells, proteins, peptides, nucleic acids, steroids and other cellular constituents after solidification. The articles formed thereof additionally exhibit mechanical reinforcement and no leaching while retain the optical clarity of the base thermoplastics in the same product form as quantified in terms of the light transmittance and haze.Type: GrantFiled: January 25, 2017Date of Patent: November 17, 2020Assignee: Nano and Advanced Materials Institute LimitedInventors: Yiu Ting Richard Lau, You Wu, Yueying Chen, Wenjun Meng, Sau Kuen Connie Kwok
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Publication number: 20200115534Abstract: This invention discloses a transparent standalone resin or masterbatch concentrate composition and manufacturing method of transforming commercial transparent grade base thermoplastics into anti-biofouling resins through extrusion or any similar hot melt mixing processes. The re-compound solids enable a number of product reforming processes, including but not limited to thermoforming, profile extrusion, injection molding, blow molding, blow filming, film casting, and spinning into articles of different shapes and geometries or overmolding on plastic substrates that can resist surface adsorption of microbes, mammalian cells, proteins, peptides, nucleic acids, steroids and other cellular constituents after solidification. The articles formed thereof additionally exhibit mechanical reinforcement and no leaching while retain the optical clarity of the base thermoplastics in the same product form as quantified in terms of the light transmittance and haze.Type: ApplicationFiled: December 12, 2019Publication date: April 16, 2020Inventors: Wenjun MENG, Yueying CHEN, Yiu Ting Richard LAU
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Publication number: 20200107545Abstract: Provided herein is a method for preparing antimicrobial thermoplastic resins and products thereof.Type: ApplicationFiled: December 11, 2019Publication date: April 9, 2020Inventors: Wenjun MENG, Yueying CHEN, Yiu Ting Richard LAU, Sau Kuen Connie KWOK, Sheung Yin LI
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Patent number: 10548314Abstract: 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: GrantFiled: December 19, 2016Date of Patent: February 4, 2020Assignee: Nano and Advanced Materials Institute LimitedInventors: Yiu Ting Richard Lau, Sau Kuen Connie Kwok, Wenjun Meng, Sheung Yin Li, Yueying Chen
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Patent number: 10525614Abstract: 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: GrantFiled: January 8, 2016Date of Patent: January 7, 2020Assignee: Nano and Advanced Materials Institute LimitedInventors: Yiu Ting Richard Lau, Sau Kuen Connie Kwok, Wenjun Meng, Sheung Yin Li, Yueying Chen
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Publication number: 20180208753Abstract: This invention discloses a transparent standalone resin or masterbatch concentrate composition and manufacturing method of transforming commercial transparent grade base thermoplastics into anti-biofouling resins through extrusion or any similar hot melt mixing processes. The re-compound solids enable a number of product reforming processes, including but not limited to thermoforming, profile extrusion, injection molding, blow molding, blow filming, film casting, and spinning into articles of different shapes and geometries or overmolding on plastic substrates that can resist surface adsorption of microbes, mammalian cells, proteins, peptides, nucleic acids, steroids and other cellular constituents after solidification. The articles formed thereof additionally exhibit mechanical reinforcement and no leaching while retain the optical clarity of the base thermoplastics in the same product form as quantified in terms of the light transmittance and haze.Type: ApplicationFiled: January 25, 2017Publication date: July 26, 2018Inventors: Yiu Ting Richard LAU, You WU, Yueying CHEN, Wenjun MENG, Sau Kuen Connie KWOK
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Patent number: 10030108Abstract: The present invention generally relates to a thermoplastic resin which is functionalized by an initiator- or linker-free process and imparted with functional properties, and related methods of fabrication. In particular, the present invention relates to methods of covalently modifying the thermoplastic resin using plasma before or after being introduced with an active agent having said functional properties.Type: GrantFiled: March 13, 2017Date of Patent: July 24, 2018Assignee: Ka Shui Manufactory Co. Ltd.Inventors: Yiu Ting Richard Lau, Wenjun Meng, Luchi Lin, Sau Kuen Connie Kwok, Wai Chung Wong, Cheuk Nang Sung
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Publication number: 20170135344Abstract: 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: ApplicationFiled: December 19, 2016Publication date: May 18, 2017Inventors: Yiu Tin Richard LAU, Sau Kuen Connie KWOK, Wenjun MENG, Sheung Yin LI, Yueying CHEN
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Publication number: 20170129139Abstract: 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: ApplicationFiled: January 8, 2016Publication date: May 11, 2017Inventors: Yiu Ting Richard LAU, Sau Kuen Connie KWOK, Wenjun MENG, Sheung Yin LI, Yueying CHEN