Patents by Inventor Zeling Dou

Zeling Dou 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).

  • Patent number: 10400132
    Abstract: The present invention relates to a polymer composition comprising: (i) one or more dendritic polymers; and (ii) a reactive diluent that is capable of being chemically coupled to the functional groups of the dendritic polymers, wherein when the dendritic polymer is coupled to the reactive diluent in the presence of a cross-linker, a polymerized solid is formed at high concentrations in a liquid medium. The present invention further relates to methods of preparing the polymer composition and its use in forming coatings.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: September 3, 2019
    Assignee: NIPSEA TECHNOLOGIES PTE LTD
    Inventors: Shaofeng Wang, Swee How Seow, Zeling Dou, Thomas F. Choate, Xiaoqun Ye
  • Patent number: 9663680
    Abstract: The present disclosure relates to an aqueous dispersible polymer composition comprising: (a) at least one of: (i) a dendritic polymer in admixture with a hydrophilic functionalizing agent; and (ii) a hydrophilic functionalized dendrimer; and (b) a non-dendritic polymer capable of forming bonds with said dendritic polymer to thereby form a dendrimer-non-dendrimer (DND) polymer hybrid that is dispersible in the aqueous phase, methods of forming the same and uses thereof.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: May 30, 2017
    Assignee: NIPSEA TECHNOLOGIES PTE LTD
    Inventors: Shaofeng Wang, Jingqiu Li, Xiaoqun Ye, Sundararajan Govindarajan, Zeling Dou, Swee How Seow
  • Publication number: 20160244572
    Abstract: The present invention provides a product and a manufacturing process for an aqueous dispersible dendritic polymer with various functionalities, and polymer compositions and polymer formulations comprising such a dendritic polymer. The aqueous dispersible dendritic polymer composition comprises a hydrophilic functional group to allow dispersion in aqueous solvents and improve washability of the polymer, a low surface tension functional group to impart resistance to dirt pick-up and optionally, a curable functional group to allow superior cross-linking capabilities and optionally, a softening functional group to impart flexibility to the composition.
    Type: Application
    Filed: December 5, 2014
    Publication date: August 25, 2016
    Applicant: NIPSEA Technologies PTE LTD
    Inventors: Shaofeng Wang, Jian Hu, Chiah Meng Seow, Rong Er Lin, Jasmine Lim, Zeling Dou, Swee How Seow
  • Patent number: 9284470
    Abstract: There is provided an aqueous dispersible polymer composition comprising: (i) a hydroxyl functional dendritic polymer; (ii) one or more polar compounds, the polar compounds being miscible with both the hydroxyl functional dendritic polymer and an aqueous solvent; and wherein the one or more polar compounds are present in an amount sufficient to disperse the hydroxyl functional dendritic polymer in the aqueous solvent. There is also provided a coating composition comprising the same and processes for preparing the aqueous dispersible polymer composition and the coating composition.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: March 15, 2016
    Assignee: NIPSEA TECHNOLOGIES PTE LTD
    Inventors: Shaofeng Wang, Zeling Dou, Swee How Seow, Jingqiu Li, Thomas F. Choate
  • Publication number: 20150111978
    Abstract: The present disclosure provides a method of preparing a dual curable polymer, the method comprising the steps of: (a) reacting a peripheral reactive group of a dendritic polymer with a cross-linker compound having two or more moisture curable functional groups to form a functionalized dendritic polymer terminated with the moisture curable functional groups; and (b) reacting said functionalized dendritic polymer with an acrylic compound to form a substituted dendritic polymer having a mixture of acrylate functional groups and at least one peripheral moisture curable functional group.
    Type: Application
    Filed: August 22, 2013
    Publication date: April 23, 2015
    Inventors: Shaofeng Wang, Zeling Dou, Swee How Seow
  • Publication number: 20140316044
    Abstract: An aqueous dispersible hydroxyl-functional dendrimer polymer composition.
    Type: Application
    Filed: August 22, 2012
    Publication date: October 23, 2014
    Applicant: NIPSEA TECHNOLOGIES PTE LTD
    Inventors: Shaofeng Wang, Zeling Dou, Swee How Seow, Jingqiu Li, Thomas F. Choate
  • Publication number: 20140212675
    Abstract: The present disclosure relates to an aqueous dispersible polymer composition comprising: (a) at least one of: (i) a dendritic polymer in admixture with a hydrophilic functionalizing agent; and (ii) a hydrophilic functionalized dendrimer; and (b) a non-dendritic polymer capable of forming bonds with said dendritic polymer to thereby form a dendrimer-non-dendrimer (DND) polymer hybrid that is dispersible in the aqueous phase, methods of forming the same and uses thereof.
    Type: Application
    Filed: July 18, 2012
    Publication date: July 31, 2014
    Applicant: NIPSEA TECHNOLOGIES PTE LTD
    Inventors: Shaofeng Wang, Jingqiu Li, Xiaoqun Ye, G. Sundararajan, Zeling Dou, Swee How Seow
  • Publication number: 20140142237
    Abstract: The present invention relates to a polymer composition comprising: (i) one or more dendritic polymers; and (ii) a reactive diluent that is capable of being chemically coupled to the functional groups of the dendritic polymers, wherein when the dendritic polymer is coupled to the reactive diluent in the presence of a cross-linker, a polymerized solid is formed at high concentrations in a liquid medium. The present invention further relates to methods of preparing the polymer composition and its use in forming coatings.
    Type: Application
    Filed: August 22, 2012
    Publication date: May 22, 2014
    Applicant: NIPSEA TECHNOLOGIES PTE LTD
    Inventors: Shaofeng Wang, Swee How Seow, Zeling Dou, Thomas F. Choate, Xiaoqun Ye