Patents by Inventor Craig M. ZIRKLE

Craig M. ZIRKLE 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).

  • Curing compositions and methods of preparing
    Patent number: 9790313
    Abstract: Disclosed are curing compositions for resin systems and in particular for phenolic resin systems and epoxy resin systems, to methods of preparing the curing compositions and to resin systems incorporating same. The curing compositions of the invention are the reaction product of an aldehyde with an amine in the presence of an aprotic solvent.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: October 17, 2017
    Assignee: HEXION INC.
    Inventors: Ganapathy S. Viswanathan, Craig M. Zirkle
  • CURING COMPOSITIONS AND METHODS OF PREPARING
    Publication number: 20160053043
    Abstract: Disclosed are curing compositions for resin systems and in particular for phenolic resin systems and epoxy resin systems, to methods of preparing the curing compositions and to resin systems incorporating same. The curing compositions of the invention are the reaction product of an aldehyde with an amine in the presence of an aprotic solvent.
    Type: Application
    Filed: August 20, 2015
    Publication date: February 25, 2016
    Inventors: Ganapathy S. VISWANATHAN, Craig M. ZIRKLE