Patents by Inventor Dongren Wang

Dongren Wang 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).

  • Latent photoactivatable precatalysts for metathesis polymerization
    Patent number: 8288449
    Abstract: Latent photoactivatable precatalysts are provided for metathesis polymerization and has the general formula (Ru(NHC)n(X1)m(L)0p+((X2)?)p. Wherein NHC is an N-heterocyclic carbene, n=1 or 2; X1 is a C1-C18 mono or polyhalogenized carbolic acid or trifluoromethane sulfate; X2 is a C1-C18 mono or polyhalogenized carbolic acid, trifluoromethane sulfate, tetrafluoroborate, hexafluorophosphate, or hexafluoroantimonate; m=0, 1, or 2 and L=a C4-C18 carbolic acid nitrile or a C4-C18 carbolic acid di or trinitrile; o=6?n?m or 5?n?m and p=2?m.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: October 16, 2012
    Assignee: Deutsche Institute fuer Textil- und Faserforschung Denkendorf
    Inventors: Michael R. Buchmeiser, Dongren Wang
  • LATENT PHOTOACTIVATABLE PRECATALYSTS FOR METATHESIS POLYMERIZATION
    Publication number: 20110003905
    Abstract: Latent photoactivatable precatalysts are provided for metathesis polymerization and has the general formula (Ru(NHC)n(X1)m(L)0p+((X2)?)p. Wherein NHC is an N-heterocyclic carbene, n=1 or 2; X1 is a C1-C18 mono or polyhalogenized carbolic acid or trifluoromethane sulfate; X2 is a C1-C18 mono or polyhalogenized carbolic acid, trifluoromethane sulfate, tetrafluoroborate, hexafluorophosphate, or hexafluoroantimonate; m=0, 1, or 2 and L=a C4-C18 carbolic acid nitrile or a C4-C18 carbolic acid di or trinitrile; o=6?n?m or 5?n?m and p=2?m.
    Type: Application
    Filed: January 16, 2009
    Publication date: January 6, 2011
    Applicant: Deutsche Institute Fuer Textil und Faserforschung Denkendorf
    Inventors: MIichel R. Buchmeiser, Dongren Wang