Patents by Inventor Yueying CHEN
Yueying CHEN 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: 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: 20240076491Abstract: The present invention provides a non-porous, breathable and waterproof transparent elastomer film and methods for fabricating the same. The film includes a polyurethane (PU) and an amphiphilic modifier having a hydrophilic segment that acts as a channel for water vapor transmission through the film connected to a hydrophobic segment that anchors the amphiphilic modifier to a portion of the polyurethane base resin. The resultant non-porous, breathable and waterproof transparent elastomer film has a water vapor transmission rate (WVTR) or breathability of not less than 300 g/m2/24 hr according to ASTM E96B, and having at least 90% of the transmittance. The film is also resistant to liquid penetration and micro-contaminants such as bacteria and virus, making it suitable for broad applications in medical, healthcare and food packaging industries.Type: ApplicationFiled: August 16, 2022Publication date: March 7, 2024Inventors: Xianqiao LIU, Yik Wong NG, Fengyu YANG, Yueying CHEN
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NON-POROUS, BREATHABLE AND WATERPROOF TRANSPARENT PLASTIC FILM AND METHOD FOR MANUFACTURING THE SAME
Publication number: 20240076460Abstract: The present invention provides a non-porous, breathable and waterproof transparent plastic film on a plastic substrate and methods for fabricating the same. The film includes a thermoplastic polyester resin, an amphiphilic modifier having a hydrophilic segment that acts as a channel for water vapor transmission through the film connected to a hydrophobic segment that anchors the amphiphilic modifier to a portion of the polyurethane base resin and a compatibilizer. The resultant non-porous, breathable and waterproof transparent plastic film has a water vapor transmission rate (WVTR) or breathability of not less than 250 g/m2/24 hr according to ASTM E96B, and having at least 90% of the transmittance. They are also resistant to liquid penetration and micro-contaminants such as bacteria and virus, making them suitable for broad applications in medical, healthcare and food packaging industries.Type: ApplicationFiled: August 16, 2022Publication date: March 7, 2024Applicant: Nano and Advanced Materials Institute LimitedInventors: Xianqiao LIU, Fengyu YANG, Yik Wong NG, Yueying CHEN -
Publication number: 20230390976Abstract: A master batch composition for a weight-reduced plastic product includes a carrier resin, a core-shell foaming agent, and at least one lubricant. The core-shell foaming agent includes at least one outer polymeric shell and at least one inner foaming agent core. The outer polymeric shell encapsulates the inner foaming agent core. The inner foaming agent core includes alkane. The master batch composition is configured to be integrated into the weight-reduced plastic product by extrusion blow molding with a base plastic resin to create a foamed plastic having a foaming pore size from 10 to 80 ?m.Type: ApplicationFiled: June 2, 2022Publication date: December 7, 2023Inventors: Yueying CHEN, Qi JIANG, Dongli SUN, Xianqiao LIU
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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: 20220380573Abstract: A biocide-free, germ-repellent, crosslinked thermoset elastomer is provided. The elastomer base is a thermoset elastomer base selected from natural rubber, synthetic rubber, solid or liquid silicone rubber, or mixtures thereof. At least one germ-repelling modifier is selected from one or more of polyethylene glycol, a polyethylene glycol derivative, alcohol ethoxylate, a polymer including an isocyanate group, a polymer including an allyloxy group, siloxane, polyether modified silicone, polysorbates and copolymers or mixtures thereof. The germ-repelling modifier is permanently bonded to the thermoset elastomer base through a chemical reaction during extrusion, molding, or curing. This chemical reaction also crosslinks the thermoset elastomer base.Type: ApplicationFiled: July 20, 2022Publication date: December 1, 2022Inventors: Xianqiao LIU, Qi JIANG, Yueying CHEN
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Patent number: 11505687Abstract: The present invention provides a master batch composition for environmentally degrading conventional plastics including a carrier resin, at least one oxidative degradant, at least one nature biodegradable degradant and at least one foaming agent. The present invention also provides a plastic product which is environmentally degradable at a very low cost versus conventional bio-sourced plastics, and has broad applications for single-use disposable applications or for short-lived products that are discarded within two years of manufacture.Type: GrantFiled: August 5, 2020Date of Patent: November 22, 2022Assignee: Nano and Advanced Materials Institute LimitedInventors: Xianqiao Liu, Yueying Chen, Yushen Wang
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Publication number: 20220041848Abstract: The present invention provides a master batch composition for environmentally degrading conventional plastics including a carrier resin, at least one oxidative degradant, at least one nature biodegradable degradant and at least one foaming agent. The present invention also provides a plastic product which is environmentally degradable at a very low cost versus conventional bio-sourced plastics, and has broad applications for single-use disposable applications or for short-lived products that are discarded within two years of manufacture.Type: ApplicationFiled: August 5, 2020Publication date: February 10, 2022Inventors: Xianqiao LIU, Yueying CHEN, Yushen WANG
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Publication number: 20220040892Abstract: The present invention provides a method for preparing a uniform-sized core-shell foaming agent includes: providing a SPG membrane having a pore size ranging approximately from 0.5 to 50 ?m; preparing a dispersed phase liquid including at least one shell material, at least one initiator, at least one cross-linker and at least one blowing agent; preparing a continuous phase liquid including at least one solvent, at least one salt, and at least one stabilizer; delivering a first pressurized gas to dispense the dispersed phase liquid to the continuous phase liquid through the SPG membrane; stirring until the uniform-sized emulsion being homogenous; initiating the polymerization of the uniform-sized emulsion to form microspheres; drying the microspheres to form the uniform-sized core shell foaming agent.Type: ApplicationFiled: August 5, 2020Publication date: February 10, 2022Inventors: Xianqiao LIU, Yushen WANG, Yueying Chen
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Publication number: 20220032494Abstract: The present invention relates to a formaldehyde-free medium-high-density board capable of meeting deep facing requirements, and a method for manufacturing same. The method includes: wood chipping, screening, cooking and softening, fiber separating, gluing, drying and sorting, paving, pre-pressing, hot pressing, cooling, sanding, and inspection and warehousing, where the gluing is two-step gluing, including: first performing gluing once by using a lignin adhesive, and then performing secondary gluing by using an MDI adhesive after waterproof treatment. According to the manufacturing method of the present invention, by using biomass adhesives and formaldehyde-free adhesives without adding additives such as a curing agent and an anti-mildew agent, formaldehyde pollution is eliminated from the source by using a two-step gluing method, so that production is formaldehyde-free, and the product is formaldehyde-free.Type: ApplicationFiled: October 18, 2021Publication date: February 3, 2022Inventors: Runcang Sun, Tongqi Yuan, Xiaolong Chen, Supeng Wang, Yueying Chen, Xianpeng Zhou
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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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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