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公开(公告)号：US09980484B2
公开(公告)日：2018-05-29
申请号：US14501059
申请日：2014-09-30
Inventor： Jifan Li , Yee Man Ho , Ka Chun Lee , Wai Yan Chan , Mui Chan , Kai Ming Yeung
CPC classification number: A01N43/16 , B01D39/1676 , B01D2239/10 , B01J20/267 , B01J20/28083 , B01J20/28085 , B01J20/3085 , B01J21/063
Abstract: A self-regenerating chitosan based filter medium for disinfecting and purifying organic pollutants and other pollutants in a gas or liquid is disclosed herein. Porosity and surface charge of said filter medium is manipulative/tunable by varying one or more of the following parameter(s): concentration of chitosan, crosslinking density, amount of copolymers and additives, freezing temperature, freezing profile, and/or types of crosslinker used. The present filter medium is capable of self-regenerating under exposure to ultra-violet light for sufficient time and removing over 90% of the pollutants from each influent flowing through the filter medium.
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公开(公告)号：US11696509B2
公开(公告)日：2023-07-04
申请号：US16693977
申请日：2019-11-25
Inventor： Han Wang , Qingyi Yang , Jianjun Song , Kwok Keung Paul Ho , Jifan Li
IPC: H01L41/18 , H01L41/113 , H01L41/37 , H10N30/85 , H10N30/30 , H10N30/092
CPC classification number: H10N30/852 , H10N30/092 , H10N30/30
Abstract: The present disclosure provides a flexible electric generator and methods for fabricating the same. The flexible electric generator comprises a flexible triboelectric layer covering the electrode layer of a flexible piezoelectric generator that enhances output power by combining piezoelectric effect and triboelectric effect. The reliability of the flexible electric generator under bending is also improved due to the presence of the flexible triboelectric layer. The fabrication methods of the disclosed flexible electric generators are simple, thereby enabling large-scale manufacturing.
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公开(公告)号：US11674021B2
公开(公告)日：2023-06-13
申请号：US15929885
申请日：2020-05-28
Inventor： Bin Xiao , Christopher Cheung Yec , Han Wang , Jianzhuo Xin , Jifan Li
CPC classification number: C08L19/00 , C08L23/0853 , C08L75/04 , C08K3/26 , C08K2003/2206 , C08K2003/2227 , C08L2201/02
Abstract: Flame retardant composition including: an optionally crosslinked rubber, an intumescent composition comprising a phosphate and a melamine polymer formed by combining melamine, formaldehyde, dicyandiamide, and aluminum hydroxide thereby forming the intumescent composition, a ceramic forming mixture, at least one glass additive, layered silicate nanoparticles, and optionally an antioxidant; and methods of preparation and use thereof.
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公开(公告)号：US11618819B2
公开(公告)日：2023-04-04
申请号：US17248557
申请日：2021-01-29
Inventor： Kang Zhang , Christopher Cheung Yec , Xiyao Zhang , Jian Zhang , Shilong Zhang , Jifan Li
IPC: C08L51/08 , C08K5/00 , C08K3/013 , C08K5/5419
Abstract: Provided herein are energy absorbing composites including a thermoplastic resin, a dilatant, a compatibilizer, a reinforcing filler, and optionally an antioxidant and methods of preparation thereof.
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公开(公告)号：US10316184B2
公开(公告)日：2019-06-11
申请号：US15396388
申请日：2016-12-30
IPC: C08L67/04 , B29C67/00 , B33Y10/00 , B33Y70/00 , B29C64/106 , B29K67/00 , B29K23/00 , B29K105/00
Abstract: A low printing temperature thermoplastic filament composition for fused filament fabrication 3D printing is described. The filament includes polycaprolactone in an amount from 70 to 90 wt %, at least one thermoplastic polymer having a melting temperature between approximately 60° C. and approximately 90° C. in an amount from approximately 10 to 30 wt %, at least one antioxidant, and at least one plasticizing agent. This 3D printing filament can be printed out at temperatures below 100° C. and no heated print bed is needed, which saves energy and minimizes the complexity of 3D printer. Besides the low printing temperature, this 3D printing material is bio-friendly which makes it safe for household use.
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Patent Agency Ranking
公开(公告)号：US09731227B2
公开(公告)日：2017-08-15
申请号：US14501058
申请日：2014-09-30
Inventor： Jifan Li , Yee Man Ho , Ka Chun Lee , Wai Yan Chan
IPC: C02F1/28 , C02F1/42 , B01D24/00 , C02F101/00 , C02F101/12 , C02F101/32 , C02F101/20
CPC classification number: B01D24/001 , C02F1/281 , C02F1/283 , C02F1/286 , C02F1/288 , C02F1/42 , C02F2001/422 , C02F2001/425 , C02F2001/427 , C02F2101/006 , C02F2101/12 , C02F2101/20 , C02F2101/322 , C02F2303/04
Abstract: The present invention relates to a filter element for disinfecting, cleaning and purifying household water, by removing pollutants such as heavy metals, bacteria, VOCs, and even radioactive substance. The present filter element comprises activated carbon, ion exchange resins (cationic and anionic), biopolymer and transitional metal oxide. Said biopolymer and transitional metal oxide are both in particle form and said transitional metal oxide particle can be either incorporated into the biopolymer particle or directly incorporated into the present filter element as individual particle. Maximum capacity of the present filter element can reach up to 150 L of household water. Some of the pollutants can be removed by up to 99% by the present filter element. A method of preparing the present filter element is also disclosed herein.
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7.发明授权公开(公告)号：US09138504B2
公开(公告)日：2015-09-22
申请号：US14446311
申请日：2014-07-29
Inventor： Jifan Li , Wai Man Peter Lee , Wing Kei Ho
CPC classification number: A61L9/22 , A61L9/205 , A61L2209/14
Abstract: The present invention relates to a novel plasma driven catalyst apparatus for disinfecting and purifying air. The apparatus has a synergistically favorable effect from plasma and catalyst on high disinfecting and purifying efficiency and efficacy, low by-product formation, and low energy consumption. The plasma combined with catalyst enhances the production of new active species, increases the oxidizing power of the plasma discharge, as well as activate the catalyst that additionally contributes towards the disinfection and purification process and the elimination of toxic by-products.
Abstract translation: 本发明涉及一种用于消毒和净化空气的新型等离子体驱动催化剂装置。 该装置具有从等离子体和催化剂对高消毒和净化效率和效力，低副产物形成和低能耗的协同优势的作用。 与催化剂结合的等离子体增强了新的活性物质的生产，增加了等离子体放电的氧化能力，并激活了另外对消毒和净化过程以及有毒副产物的消除作用的催化剂。
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公开(公告)号：US20180187000A1
公开(公告)日：2018-07-05
申请号：US15396388
申请日：2016-12-30
CPC classification number: C08L67/04 , B29C64/106 , B29K2023/06 , B29K2023/083 , B29K2067/00 , B29K2105/0038 , B29K2995/006 , B33Y10/00 , B33Y70/00
Abstract: A low printing temperature thermoplastic filament composition for fused filament fabrication 3D printing is described. The filament includes polycaprolactone in an amount from 70 to 90 wt %, at least one thermoplastic polymer having a melting temperature between approximately 60° C. and approximately 90° C. in an amount from approximately 10 to 30 wt %, at least one antioxidant, and at least one plasticizing agent. This 3D printing filament can be printed out at temperatures below 100° C. and no heated print bed is needed, which saves energy and minimizes the complexity of 3D printer. Besides the low printing temperature, this 3D printing material is bio-friendly which makes it safe for household use.
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公开(公告)号：US09902860B1
公开(公告)日：2018-02-27
申请号：US15252182
申请日：2016-08-30
Inventor： Jifan Li , Wai Yan Chan , Ka Kit Yee , Ka Leung Kevin Cheuk
IPC: C08F2/48 , C08F2/50 , C08G61/04 , C09D4/00 , C09D11/101
CPC classification number: C09D4/00 , C08F2222/1033 , C09D11/03 , C09D11/101 , C08F222/10 , C08F220/20 , C08F2220/1891
Abstract: The present invention provides photopolymer compositions for 3D printing which have low viscosity, proper curing rate, low volume shrinkage, and low ash content. Such compositions may be used in 3D printing for direct investment casting of products and rapid prototyping.
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公开(公告)号：US12252842B2
公开(公告)日：2025-03-18
申请号：US17664708
申请日：2022-05-24
Inventor： Kang Zhang , Christopher Cheung Yec , Jian Zhang , Shilong Zhang , Xiyao Zhang , Jifan Li
Abstract: An energy dissipating fiber and fabric for protective textile application, which can absorb energy during shocking, stretching and vibration. The disclosed fiber/fabric can include a polymer matrix, a shear-thickening material and a reinforcing filler.
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