Patents by Inventor Yew Wei Leong

Yew Wei Leong 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: 20210262095
    Abstract: According to the present disclosure, a method for coating nickel on an organosiloxane polymer is provided. A nickel organosiloxane polymer composite is also provided.
    Type: Application
    Filed: May 7, 2021
    Publication date: August 26, 2021
    Inventors: Shengqin Wang, Yew Wei Leong
  • Patent number: 11059979
    Abstract: A near infrared reflective coating composition comprising a polymer resin, a polyamide resin and a suitable solvent. Preferred embodiments for the polymer resin include epoxy resins, acrylic resins, polyester resins or polyisocyanate resins. The composition further comprises additives such as a hardener, surfactant, fumed silica, metal oxide or mixed metal oxide pigments such as titanium oxide, chromium oxide, iron oxide or aluminium oxide. A method for forming the coating is also provided.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: July 13, 2021
    Assignee: Agency for Science, Technology and Research
    Inventors: Yongzheng Pan, Yew Wei Leong, Shengqin Wang
  • Patent number: 11028484
    Abstract: According to the present disclosure, a method for coating nickel on an organosiloxane polymer wherein the said method comprises the steps of; forming a transition metal oxide on the organosiloxane polymer; etching the transition metal oxide with a basic solution; contacting the organosiloxane polymer comprising the etched transition metal oxide with an aqueous solution comprising a positively charged species to attach the positively charged species on the etched transition metal oxide; depositing a metal catalyst on the positively charged species; and treating the metal catalyst with an acidic solution to develop an activated organosiloxane polymer before transferring the activated organosiloxane polymer to a solution comprising nickel and/or nickel derivatives. A nickel organosiloxane composite is provided herein comprising a transition metal oxide layer and a positively charged species attached on the said oxide layer with nickel coated in the said positively charged species.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: June 8, 2021
    Assignee: Agency for Science, Technology and Research
    Inventors: Shengqin Wang, Yew Wei Leong
  • Publication number: 20190352779
    Abstract: According to the present disclosure, a method for coating nickel on an organosiloxane polymer wherein the said method comprises the steps of; forming a transition metal oxide on the organosiloxane polymer; etching the transition metal oxide with a basic solution; contacting the organosiloxane polymer comprising the etched transition metal oxide with an aqueous solution comprising a positively charged species to attach the positively charged species on the etched transition metal oxide; depositing a metal catalyst on the positively charged species; and treating the metal catalyst with an acidic solution to develop an activated organosiloxane polymer before transferring the activated organosiloxane polymer to a solution comprising nickel and/or nickel derivatives. A nickel organosiloxane composite is provided herein comprising a transition metal oxide layer and a positively charged species attached on the said oxide layer with nickel coated in the said positively charged species.
    Type: Application
    Filed: October 30, 2017
    Publication date: November 21, 2019
    Inventors: Shengqin Wang, Yew Wei Leong
  • Publication number: 20180086920
    Abstract: A near infrared reflective coating composition comprising a polymer resin, a polyamide resin and a suitable solvent. Preferred embodiments for the polymer resin include epoxy resins, acrylic resins, polyester resins or polyisocyanate resins. The composition further comprises additives such as a hardener, surfactant, fumed silica, metal oxide or mixed metal oxide pigments such as titanium oxide, chromium oxide, iron oxide or aluminium oxide. A method for forming the coating is also provided.
    Type: Application
    Filed: March 30, 2016
    Publication date: March 29, 2018
    Inventors: Yongzheng Pan, Yew Wei Leong, Shengqin Wang
  • Publication number: 20180029326
    Abstract: The present invention relates to a laminate for making a molded article comprising: (i) at least one reinforcement Iayer impregnated with a resin matrix; (ii) at least one deployable layer; and (iii) optionally, at least one material comprising at least one non-adhesive side, wherein the deployable layer are compactable, expandable or collapsible including Miura-Ori folds, honeycombs, foams or air mesh. The laminate may be used to form a molded article. The molded articles have uses in biomedical, health care and sport protective devices.
    Type: Application
    Filed: February 17, 2016
    Publication date: February 1, 2018
    Inventors: Yew Wei LEONG, Mohit SHARMA, Yongzheng PAN, Shilin CHEN
  • Publication number: 20150064397
    Abstract: The present disclosure relates to a laminate for making a molded article comprising at least one fiber reinforcement impregnated with a resin matrix as a first layer and a foam as a second layer. The foam can be laminated to the first layer using a nanocomposite adhesive. The laminates can be easily molded using bagging mold techniques. The resulting molded devices have uses in biomedical, health care and sport protective devices. Due to the improved strength of material, it is possible to drill holes into the device shell allowing for improved ventilation.
    Type: Application
    Filed: August 27, 2014
    Publication date: March 5, 2015
    Inventors: Yew Wei Leong, Yongzheng Pan, Pin Lu, Chaobin He
  • Patent number: 8853330
    Abstract: Described herein are polymers comprising a polyester and at least one polyhedral oligomeric silsesquioxane, wherein the polyester is capable of forming a stereocomplex with a polymer comprising a complimentary polyester and composites thereof.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: October 7, 2014
    Assignee: Agency for Science Technology and Research
    Inventors: Yew Wei Leong, Beng Hoon Maureen Tan, Ting Ting Lin, Yang Choo Chua, Weng Weei Tjiu, Chaobin He, Pui Kwan Wong
  • Publication number: 20110250456
    Abstract: The present invention has an object of providing a molded article of a composite structure obtained by bonding a polar thermoplastic resin, especially polyacetal, with another resin in a simple manner. According to the present invention, a molded article of a composite structure obtained by bonding a polar thermoplastic resin and a resin containing an aliphatic ester structure as a main component to each other in the state where at least a face at which both of the materials contact each other is in a melted state can be provided.
    Type: Application
    Filed: May 26, 2009
    Publication date: October 13, 2011
    Inventors: Akira Okamura, Satoshi Nagai, Hiroyuki Hamada, Yew Wei Leong