Patents by Inventor Craig A. Dykstra

Craig A. Dykstra 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).

  • Photoinitiator systems with anthracene-based electron donors for curing cationically polymerizable resins
    Patent number: 7537452
    Abstract: The invention features a photopolymerizable composition that comprises a cationically polymerizable resin, and a photoinitiator system comprising an iodonium salt, a visible light sensitizer, and one or more anthracene-based compounds as electron donors. Electron donor combinations used in the invention include multiple substituted anthracene compounds or a combination of at least one substituted anthracene compound with unsubstituted anthracene.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: May 26, 2009
    Assignees: Curators of the University of Missouri, 3M Innovative Properties Company 3M Center, 3M ESPE AG
    Inventors: Joel D. Oxman, Karsten Dede, Craig A. Dykstra, Victoria A. Russell, Christoph Thalacker, Wolfgang Weinmann
  • Photoinitiator systems with anthracene-based electron donors for curing cationically polymerizable resins
    Publication number: 20070287764
    Abstract: The invention features a photopolymerizable composition that comprises a cationically polymerizable resin, and a photoinitiator system comprising an iodonium salt, a visible light sensitizer, and one or more anthracene-based compounds as electron donors. Electron donor combinations used in the invention include multiple substituted anthracene compounds or a combination of at least one substituted anthracene compound with unsubstituted anthracene.
    Type: Application
    Filed: August 16, 2007
    Publication date: December 13, 2007
    Inventors: Joel Oxman, Karsten Dede, Craig Dykstra, Victoria Russell, Christoph Thalacker, Wolfgang Weinmann
  • Photoinitiator systems with anthracene-based electron donors for curing cationically polymerizable resins
    Patent number: 7262228
    Abstract: The invention features a photopolymerizable composition that comprises a cationically polymerizable resin, and a photoinitiator system comprising an iodonium salt, a visible light sensitizer, and one or more anthracene-based compounds as electron donors. Electron donor combinations used in the invention include multiple substituted anthracene compounds or a combination of at least one substituted anthracene compound with unsubstituted anthracene.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: August 28, 2007
    Assignees: Curators of the University of Missouri, 3M Innovative Properties Company, 3M ESPE AG
    Inventors: Joel D. Oxman, Karsten Dede, Craig A. Dykstra, Victoria A. Russell, Christoph Thalacker, Wolfgang Weinmann
  • Photoinitiator systems with anthracene-based electron donors for curing cationically polymerizable resins
    Publication number: 20050113477
    Abstract: The invention features a photopolymerizable composition that comprises a cationically polymerizable resin, and a photoinitiator system comprising an iodonium salt, a visible light sensitizer, and one or more anthracene-based compounds as electron donors. Electron donor combinations used in the invention include multiple substituted anthracene compounds or a combination of at least one substituted anthracene compound with unsubstituted anthracene.
    Type: Application
    Filed: November 21, 2003
    Publication date: May 26, 2005
    Inventors: Joel Oxman, Karsten Dede, Craig Dykstra, Victoria Russell, Christoph Thalacker, Wolfgang Weinmann