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1.发明申请公开(公告)号：US20180208753A1
公开(公告)日：2018-07-26
申请号：US15415426
申请日：2017-01-25
Inventor： Yiu Ting Richard LAU , You WU , Yueying CHEN , Wenjun MENG , Sau Kuen Connie KWOK
IPC: C08L23/14 , C08L23/12 , C08L53/00 , C08L33/12 , B29B7/88 , B29B7/00 , B29B9/10 , B29C41/00 , B29C45/00 , B29C47/00 , B29C49/00
CPC classification number: C08L23/14 , B29B7/005 , B29B7/88 , B29B9/06 , B29B9/12 , B29C41/003 , B29C48/022 , B29C48/40 , B29C48/919 , B29C49/0005 , B29K2101/12 , B29K2105/0005 , B29K2995/0026 , C08L23/12 , C08L33/12 , C08L2201/08 , C08L2201/10 , C08L2205/05 , C08L2205/06 , C08L2310/00 , C08K2003/2227 , C08L23/0815
Abstract: 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.
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公开(公告)号：US20170129139A1
公开(公告)日：2017-05-11
申请号：US15318585
申请日：2016-01-08
Inventor： Yiu Ting Richard LAU , Sau Kuen Connie KWOK , Wenjun MENG , Sheung Yin LI , Yueying CHEN
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.
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Patent Agency Ranking
公开(公告)号：US20210115200A1
公开(公告)日：2021-04-22
申请号：US17042239
申请日：2018-04-09
Inventor： Wenjun MENG , Sau Kuen Connie KWOK , Yueying CHEN , Mingyu ZHANG
Abstract: 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.
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公开(公告)号：US20250051547A1
公开(公告)日：2025-02-13
申请号：US18722867
申请日：2023-01-28
Inventor： Wenjun MENG , Shengchang TANG , Jihan YI , Mingyu ZHANG , Wai Hong YU , Sze Wing WONG
Abstract: Provided herein are antimicrobial polymer compositions and antimicrobial coating formulations useful for preparing antimicrobial substrates and imparting antimicrobial properties to surfaces, and methods for their use and preparation thereof.
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5.发明公开公开(公告)号：US20240043681A1
公开(公告)日：2024-02-08
申请号：US18258331
申请日：2021-12-22
Inventor： Wenjun MENG , Deryck Hin Yeung LI , Jihan YI , Jingyu SHI , Kevin TSAI
CPC classification number: C08L55/02 , C08J3/226 , C08L2310/00 , C08J2423/12 , C08J2423/14 , C08J2355/02
Abstract: 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. The change in mechanical strength of the base plastic before and after the introduction of the hydration layer is less than 20% of an original mechanical strength, where the original mechanical strength corresponds to a strength of the base plastic before formation of the hydration layer.
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公开(公告)号：US20230374292A1
公开(公告)日：2023-11-23
申请号：US18258563
申请日：2021-12-22
Inventor： Wenjun MENG , Wai Hong YU , Mingyu ZHANG , Wing Hin LEUNG , Yueying CHEN
IPC: C08L67/02 , B65D65/42 , B65D81/28 , B29C43/00 , C08L23/12 , C08L83/04 , C08K5/101 , C08K3/36 , C08J3/22 , A01N25/10 , A01P1/00 , A01P3/00 , A01N31/02 , A01N37/06 , A01N55/00
CPC classification number: C08L67/02 , B65D65/42 , B65D81/28 , B29C43/003 , C08L23/12 , C08L83/04 , C08K5/101 , C08K3/36 , C08J3/226 , A01N25/10 , A01P1/00 , A01P3/00 , A01N31/02 , A01N37/06 , A01N55/00 , B29K2083/00
Abstract: 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.
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公开(公告)号：US20170135344A1
公开(公告)日：2017-05-18
申请号：US15382792
申请日：2016-12-19
Inventor： Yiu Tin Richard LAU , Sau Kuen Connie KWOK , Wenjun MENG , Sheung Yin LI , Yueying CHEN
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.
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