Patents by Inventor Jinlian Hu

Jinlian Hu 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).

  • Publication number: 20250011554
    Abstract: The present invention relates to a method for preparing polymer film, comprising the following steps: i) forming at least one polymer as a first membrane by electrospinning; ii) forming a first mixture by dispersing at least one mid-infrared radiation reflective material into a first liquid; iii) filtering said first mixture, wherein said first membrane is used as a filter membrane, thereby depositing said at least one mid-infrared radiation reflective material on said first membrane to form a second membrane, and iv) drying said second membrane to form a third membrane; characterized in that, said at least one polymer is selected from polyvinylidene fluoride and/or polyurethane.
    Type: Application
    Filed: May 7, 2024
    Publication date: January 9, 2025
    Inventors: Jinlian HU, Leqi LEI, Shuo SHI, Siu Wah WONG
  • Publication number: 20240418581
    Abstract: A tactile sensor comprising flexible electrodes and triboelectric layers is provided. The first triboelectric layer is disposed on the first flexible electrode. The second triboelectric layer is disposed on the second flexible electrode. The first and second triboelectric layers cover a same area. The first and second triboelectric layers are located between the first and second flexible electrodes. The second triboelectric layer keeps a distance from the first triboelectric layer when no external force is applied. The first triboelectric layer comprises MXene and polyvinylidene fluoride (PVDF). The first triboelectric layer and the second triboelectric layer have different triboelectric properties and form a triboelectric nanogenerator. A touch device comprising the tactile sensor and a manufacturing method of the tactile sensor are also provided.
    Type: Application
    Filed: June 6, 2024
    Publication date: December 19, 2024
    Inventors: Jinlian HU, Chuanwei ZHI, Shuo SHI
  • Publication number: 20240260899
    Abstract: A nanofiber-based directional moisture wicking electronic fabric and preparation methods thereof are provided. The electronic fabric includes hydrophobic fibrous layer, hydrophilic fibrous layer, and conductive functional coating layer. In the preparation method of the nanofiber-based electronic fabric, the hydrophobic nanofibers, the conductive coating layer, and the hydrophilic nanofibers are successively constructed by the combination of electrospinning and electrostatic spraying technology. Through the construction of hydrophilic and hydrophobic differences, the all-fibrous electronic fabric of the invention is enabled to transport sweat from the skin surface to hydrophilic nanofibers to maintain good comfort and has the merit of good electricity at the same time. The all-fibrous electronic fabric is easy to be fabricated and has a wide application prospect in the fields of waterproof and moisture permeable clothing and intelligent wearable electronics.
    Type: Application
    Filed: January 15, 2024
    Publication date: August 8, 2024
    Inventors: Jinlian HU, Chuanwei ZHI, Shuo SHI, Yifan SI
  • Publication number: 20240247409
    Abstract: The present invention discloses a method for preparing a polyurethane film, comprising the steps of: i) dissolving polyurethane into a first solvent to form a first solution; ii) dissolving salt into a second solvent to form a second solution; iii) preparing a spinning stock solution by mixing said first solution and said second solution; iv) spinning said spinning stock solution in an electrospinning device to obtain a polyurethane film; v) providing a container to which a third solvent is sprayed; and vi) arranging said polyurethane film in said container for a period of time.
    Type: Application
    Filed: January 19, 2023
    Publication date: July 25, 2024
    Inventors: Jinlian HU, Jieqiong YANG, Shuo SHI, Yifan SI, Siu Wah WONG
  • Publication number: 20240199827
    Abstract: The present invention relates to a method for preparing a polymer film, comprising the following steps: preparing a polymer film with a polymer solution prepared from PVDF and/or TPU; preparing a mixed solvent selected from a group consisting of dimethylformamide, dimethylacetamide, ethanol, water, or any combination thereof, wherein said mixed solvent is characterized by the solubility of said mixed solvent to the polymer selected for said polymer solution and/or the contact angle of said mixed solvent on said polymer film; wetting said polymer film with said mixed solvent; and subjecting the wet polymer film to thermal treatment under pressure.
    Type: Application
    Filed: December 14, 2022
    Publication date: June 20, 2024
    Inventors: Jinlian HU, Shuo SHI, Yifan SI, Jieqiong YANG, Siu Wah WONG
  • Patent number: 11998623
    Abstract: A water-soluble unidirectional moisture transport traditional Chinese medicine facial mask and a preparation method thereof. The facial mask includes a facial mask substrate and a facial mask effective ingredient layer, wherein a lateral surface of the facial mask substrate is a hydrophobic surface, and the other lateral surface is a superhydrophilic surface; the facial mask effective ingredient layer is loaded to the superhydrophilic surface, in which facial mask effective ingredients include a traditional Chinese medicine colloid. In use, by simply spraying water, the effective ingredients such as the traditional Chinese medicine on the surface can be quickly dissolved to exert effects. Its hydrophobic layer can be kept dry, which not only delays volatilization of liquid and prolongs the effective time, but also is easy to operate and is clean and hygienic. The present invention has a simple preparation method, is non-harmful and non-toxic, low-carbon and environmentally friendly.
    Type: Grant
    Filed: July 29, 2022
    Date of Patent: June 4, 2024
    Assignee: City University of Hong Kong
    Inventors: Jinlian Hu, Yifan Si, Shuo Shi, Chunxia Guo
  • Patent number: 11939704
    Abstract: A woven, water-vapor permeable, water-responsive, shape-memory wool fabric that possesses switchable pore size and shape responsive to varying water content absorbed thereby is demonstrated, more particularly, the wool fabric exerts corresponding thermal and water vapor regulations between the wearer and the surroundings with respect to the temperature and humidity changes.
    Type: Grant
    Filed: October 18, 2021
    Date of Patent: March 26, 2024
    Assignees: City University of Hong Kong, The Hong Kong Polytechnic University
    Inventors: Jinlian Hu, Mohammad Irfan Iqbal
  • Publication number: 20230304191
    Abstract: The invention provides an enhanced electrospun film made from polyvinylidene fluoride (PVDF) and at least one low-melting-point polymer in a ratio of 99.9:0.1-90:10 by weight, and the low-melting-point polymer having a melting point lower than the polyvinylidene fluoride and a softening point in the range of 110-140 C°. The enhanced electrospun film exhibits excellent mechanical properties, higher moisture permeability and hydrostatic pressure resistance. The invention further provides a method for manufacturing the enhanced PVDF electrospun film, and use of the enhanced PVDF electrospun film in preparing a waterproof and moisture permeable product.
    Type: Application
    Filed: August 30, 2022
    Publication date: September 28, 2023
    Inventors: Jinlian HU, Shuo SHI, Yifan SI, Siu Wah WONG, Muk Fung YUEN
  • Publication number: 20230111046
    Abstract: A water-soluble unidirectional moisture transport traditional Chinese medicine facial mask and a preparation method thereof. The facial mask includes a facial mask substrate and a facial mask effective ingredient layer, wherein a lateral surface of the facial mask substrate is a hydrophobic surface, and the other lateral surface is a superhydrophilic surface; the facial mask effective ingredient layer is loaded to the superhydrophilic surface, in which facial mask effective ingredients include a traditional Chinese medicine colloid. In use, by simply spraying water, the effective ingredients such as the traditional Chinese medicine on the surface can be quickly dissolved to exert effects. Its hydrophobic layer can be kept dry, which not only delays volatilization of liquid and prolongs the effective time, but also is easy to operate and is clean and hygienic. The present invention has a simple preparation method, is non-harmful and non-toxic, low-carbon and environmentally friendly.
    Type: Application
    Filed: July 29, 2022
    Publication date: April 13, 2023
    Inventors: Jinlian Hu, Yifan Si, Shuo Shi, Chunxia Guo
  • Publication number: 20230063352
    Abstract: The present invention discloses a unidirectional moisturizing nanofiber facial mask substrate with asymmetric wettability and preparation thereof. The preparation includes: preparing a superhydrophilic electrospun fiber membrane on a substrate by electrospinning; preparing a hydrophobic electrospun fiber membrane by electrospinning on a lateral surface of the superhydrophilic electrospun fiber membrane away from the substrate to form a double-layered membrane; and removing the substrate, and drying the double-layered membrane to obtain the asymmetric unidirectional moisturizing facial mask substrate with one side being superhydrophilic and the other side being hydrophobic. The superhydrophilic layer can absorb a nutrient solution and be applied to the skin surface, while the hydrophobic layer can keep itself dry, reduce the consumption of the nutrient solution and inhibit volatilization of the nutrient solution.
    Type: Application
    Filed: July 18, 2022
    Publication date: March 2, 2023
    Inventors: Jinlian Hu, Yifan Si, Shuo Shi, Chunxia Guo
  • Publication number: 20220119990
    Abstract: The present invention provides water-responsive, shape-memory natural fiber, yarn, fabric and textile comprising thereof with pore actuating function, and method for preparing the same. Fabric and textile prepared according to the present invention possess switchable pore size and shape responsive to varying water content absorbed thereby, and also exert corresponding thermal and water vapor regulations between the wearer and the surroundings with respect to the temperature and humidity changes.
    Type: Application
    Filed: October 18, 2021
    Publication date: April 21, 2022
    Inventors: Jinlian HU, Mohammad Irfan IQBAL
  • Patent number: 10550266
    Abstract: A two-way shape memory polymer composite material is provided, which comprises two interpenetrating network polymers, wherein one polymer is a shape memory polymer made of crystalline cross-linked polymer, the other one is a cross-linked elastomeric material. The composite material is formed by interpenetration of two network polymers, wherein one network polymer will shrink under heating and the other network polymer acts as the segment for energy storage. When the first polymer network shrinks under heating, it presses the second polymer network, while the heating is cancelled the pressed second polymer network will enforce the first polymer network to recover the original shape, therefore it has the behavior of two-way shape memory.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: February 4, 2020
    Assignee: POLYU BASE (SHENZHEN) LIMITED
    Inventors: Jinlian Hu, You Wu
  • Patent number: 9527947
    Abstract: A semi-crystalline shape memory polymer with transition temperature near body temperature and the production method thereof is disclosed. The shape memory polymer comprises a polymer chain which further comprises a plurality of prepolymers and a plurality of chain extenders bonding the prepolymers together in which each prepolymer further comprises a plurality of synthesized units. The above mentioned synthesized unit is obtained by reacting polymer diol with first diisocyanate. The obtained synthesized units are polymerized together with second diisocyanate and chain extender to form the shape memory polymer.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: December 27, 2016
    Assignee: The Hong Kong Polytechnic University
    Inventors: Jinlian Hu, Yong Zhu, Jianping Han, Jing Lu
  • Patent number: 9222203
    Abstract: A method for making items of clothing having shape memory, the method comprising: synthesizing (31) a shape memory polyurethane; subjecting (34) the shape memory polyurethane to wet spinning, dry spinning, melt spinning or multi-component spinning in order to produce shape memory fibers; and knitting or weaving (36) the shape memory fibers to form the item of clothing.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: December 29, 2015
    Assignee: The Hong Kong Polytechnic University
    Inventors: Jinlian Hu, Jianping Han, Jing Lu, Qinghao Meng, Yong Zhu, Yan Liu, Qunmin Ling, Fenglong Ji
  • Publication number: 20150344690
    Abstract: A two-way shape memory polymer composite material is provided, which comprises two interpenetrating network polymers, wherein one polymer is a shape memory polymer made of crystalline cross-linked polymer, the other one is a cross-linked elastomeric material. The composite material is formed by interpenetration of two network polymers, wherein one network polymer will shrink under heating and the other network polymer acts as the segment for energy storage. When the first polymer network shrinks under heating, it presses the second polymer network, while the heating is cancelled the pressed second polymer network will enforce the first polymer network to recover the original shape, therefore it has the behavior of two-way shape memory.
    Type: Application
    Filed: August 7, 2014
    Publication date: December 3, 2015
    Applicant: POLYU BASE (SHENZHEN) LIMITED
    Inventors: Jinlian HU, You WU
  • Publication number: 20140107312
    Abstract: A semi-crystalline shape memory polymer with transition temperature near body temperature and the production method thereof is disclosed. The shape memory polymer comprises a polymer chain which further comprises a plurality of prepolymers and a plurality of chain extenders bonding the prepolymers together in which each prepolymer further comprises a plurality of synthesized units. The above mentioned synthesized unit is obtained by reacting polymer diol with first diisocyanate. The obtained synthesized units are polymerized together with second diisocyanate and chain extender to form the shape memory polymer.
    Type: Application
    Filed: June 10, 2013
    Publication date: April 17, 2014
    Applicant: The Hong Kong Polytechnic University
    Inventors: Jinlian HU, Yong ZHU, Jianping HAN, Jing LU
  • Patent number: 8349299
    Abstract: A method of imparting a shape memory effect to hair may include administrating an effective amount of a hair-conditioning agent to hair. The hair-conditioning agent may include a shape memory polymer selected from the group consisting of a polyurethane, an acrylic acid copolymer, a pyridine-based copolymer, and a pyrrolidone copolymer.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: January 8, 2013
    Assignee: The Hong Kong Polytechnic University
    Inventors: Jinlian Hu, Yong Zhu, Shaojun Chen, Hongsheng Luo, Jing Lu
  • Publication number: 20120000251
    Abstract: A method for making items of clothing having shape memory, the method comprising: synthesizing (31) a shape memory polyurethane; subjecting (34) the shape memory polyurethane to wet spinning, dry spinning, melt spinning or multi-component spinning in order to produce shape memory fibers; and knitting or weaving (36) the shape memory fibers to form the item of clothing.
    Type: Application
    Filed: June 30, 2010
    Publication date: January 5, 2012
    Applicant: The Hong Kong Polytechnic University
    Inventors: Jinlian HU, Jianping Han, Jing Lu, Qinghao Meng, Yong Zhu, Yan Liu, Qunmin Ling, Fenglong Ji
  • Patent number: 7999034
    Abstract: A textile benefit composition comprising a polyurethane and/or a polyurethane co-polymer; a cross-linking agent; a catalyst; and a carrier and processes for making and using the aforementioned compositions and textiles treated with such compositions are disclosed.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: August 16, 2011
    Assignee: The Procter & Gamble Company
    Inventors: Jiping Wang, Jinlian Hu
  • Patent number: 7976944
    Abstract: A temperature-regulating fiber may include a spun phase change polymeric material that may include a plurality of phase change polymer blocks. The fiber may have a fixity ratio of at least 80% and a recovery ratio of at least 74%.
    Type: Grant
    Filed: December 31, 2009
    Date of Patent: July 12, 2011
    Assignee: The Hong Kong Polytechnic University
    Inventors: Jinlian Hu, Qinghao Meng