Patents by Inventor Zhong-Biao Zhang

Zhong-Biao Zhang 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: 7645854
    Abstract: We report Michael addition products between primary amines and activated ?,?-unsaturated compounds exemplified by diethyl methylenemalonate (DEMM). In various embodiments, the reaction proceeds with high yields in the absence of strong base or Lewis acid catalyst under mild reaction conditions. Depending on the state of steric hindrance in the amine, the reaction products are a double Michael addition product or a so-called vicarious Michael addition reaction product.
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: January 12, 2010
    Assignee: Central Michigan University Board of Trustees
    Inventors: Dillip K Mohanty, Zhong-Biao Zhang
  • Patent number: 7619054
    Abstract: Dendrimeric compounds and polymers are also provided wherein the dendrimer core is derived from the Michael reaction products. The branching pattern of the core and the multiplicity of the Michael addition lead to flexibility in designing and synthesizing dendrimeric materials. The Michael addition products are from a reaction between primary amines and activated ?,?-unsaturated compounds exemplified by diethyl methylenemalonate (DEMM). In various embodiments, the reaction proceeds with high yields in the absence of strong base or Lewis acid catalyst under mild reaction conditions. Depending on the state of steric hindrance in the amine, the reaction products are a double Michael addition product or a so-called vicarious Michael addition reaction product.
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: November 17, 2009
    Assignee: Central Michigan University Board of Trustees
    Inventors: Dillip K Mohanty, Zhong-Biao Zhang
  • Publication number: 20060264597
    Abstract: We report Michael addition products between primary amines and activated ?,?-unsaturated compounds exemplified by diethyl methylenemalonate (DEMM). In various embodiments, the reaction proceeds with high yields in the absence of strong base or Lewis acid catalyst under mild reaction conditions. Depending on the state of steric hindrance in the amine, the reaction products are a double Michael addition product or a so-called vicarious Michael addition reaction product.
    Type: Application
    Filed: March 1, 2006
    Publication date: November 23, 2006
    Inventors: Dillip Mohanty, Zhong-Biao Zhang
  • Publication number: 20060264530
    Abstract: Dendrimeric compounds and polymers are also provided wherein the dendrimer core is derived from the Michael reaction products. The branching pattern of the core and the multiplicity of the Michael addition lead to flexibility in designing and synthesizing dendrimeric materials. The Michael addition products are from a reaction between primary amines and activated ?,?-unsaturated compounds exemplified by diethyl methylenemalonate (DEMM). In various embodiments, the reaction proceeds with high yields in the absence of strong base or Lewis acid catalyst under mild reaction conditions. Depending on the state of steric hindrance in the amine, the reaction products are a double Michael addition product or a so-called vicarious Michael addition reaction product.
    Type: Application
    Filed: March 1, 2006
    Publication date: November 23, 2006
    Inventors: Dillip Mohanty, Zhong-Biao Zhang
  • Publication number: 20040096664
    Abstract: The invention provides a polythiophene aggregate doped with metal ions, which has a characteristic spectrometric property in UV-vis-near IR region and is suitable for a photo-electoric material, said polythiophene being representable by the formula: 1
    Type: Application
    Filed: November 19, 2002
    Publication date: May 20, 2004
    Inventors: Michiya Fujiki, Charles E. McKenna, Zhong-Biao Zhang
  • Publication number: 20040087761
    Abstract: The present invention involves a novel polycarbazole, more specifically, a polycarbazole, of which repeating unit is a formula 1
    Type: Application
    Filed: November 1, 2002
    Publication date: May 6, 2004
    Inventors: Michiya Fujiki, Charles E. Mckenna, Zhong-Biao Zhang