Patents by Inventor Yit Lin Chew

Yit Lin Chew 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).

  • Heat and hot water resistant polyurethane sealant
    Patent number: 6855765
    Abstract: A two-component polyurethane sealant composition is described. The polyurethane sealant of the invention exhibits improved resistance to degradation by heat and hot water. The composition of the invention includes a novel hindered amine antioxidant.
    Type: Grant
    Filed: December 12, 2001
    Date of Patent: February 15, 2005
    Assignee: National University of Singapore
    Inventors: Yit Lin Chew, Suat Hong Goh, Xu Zhou
  • Heat and hot water resistant polyurethane sealant
    Publication number: 20030149167
    Abstract: A two-component polyurethane sealant composition is described. The polyurethane sealant of the invention exhibits improved resistance to degradation by heat and hot water. The composition of the invention includes a novel hindered amine antioxidant.
    Type: Application
    Filed: December 12, 2001
    Publication date: August 7, 2003
    Inventors: Yit Lin Chew, Suat Hong Goh, Xu Zhou