Patents by Inventor Mark Crisp

Mark Crisp 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).

  • Reduced byproduct polyamine-epihalohydrin resins
    Publication number: 20070137821
    Abstract: Processes for rendering a polyamine-epihalohydrin resin storage stable, including processes that prepare a storage stable resin and/or processes that treat resins. A composition containing a polyamine-epihalohydrin resin which includes CPD-forming species can be treated with at least one agent under conditions to at least one of inhibit, reduce and remove the CPD-forming species to obtain a reduced CPD-forming resin so that a composition containing the reduced CPD-forming polyamine-epihalohydrin resin when stored for 2 weeks at 50° C., and a pH of about 2.5 to 3.5 contains less than about 250 ppm dry basis of CPD. The invention is also directed to a gelation storage stable reduced CPD-forming resin so that a composition containing the reduced CPD-forming polyamine-epihalohydrin resin, when stored at pH 1 for 24 hours at 50° C. and measured at 24 hours, produces less than about 1000 ppm dry basis of CPD.
    Type: Application
    Filed: December 27, 2006
    Publication date: June 21, 2007
    Inventors: Richard Riehle, Anthony Allen, Michaela Hofbauer, Alfred Haandrikman, Ronald Busink, Mark Crisp, John Hoglen, Huai Cheng, Francis Carlin, John Lapre, Harold Jabloner
  • Use of non-thermosetting polyamidoamines as dry-strength resins
    Publication number: 20070056706
    Abstract: The invention relates to a process for utilizing resins useful for imparting dry-strength to paper without substantially increasing the paper's wet-strength wherein the resins comprise non-thermosetting crosslinked polyamidoamine-epihalohydrin resins. The invention also relates to the paper produced containing the resins.
    Type: Application
    Filed: July 7, 2006
    Publication date: March 15, 2007
    Inventors: Mark Crisp, Willem Stevels
  • Reduced by product polyamine-epihalohydrin resins
    Publication number: 20050006042
    Abstract: Processes for rendering a polyamine-epihalohydrin resin storage stable, including processes that prepare a storage stable resin and/or processes that treat resins. A composition containing a polyamine-epihalohydrin resin which includes CPD-forming species can be treated with at least one agent under conditions to at least one of inhibit, reduce and remove the CPD-forming species to obtain a reduced CPD-forming resin so that a composition containing the reduced CPD-forming polyamine-epihalohydrin resin when stored for 2 weeks at 50° C., and a pH of about 2.5 to 3.5 contains less than about 250 ppm dry basis of CPD. The invention is also directed to a gelation storage stable reduced CPD-forming resin so that a composition containing the reduced CPD-forming polyamine-epihalohydrin resin, when stored at pH 1 for 24 hours at 50° C. and measured at 24 hours, produces less than about 1000 ppm dry basis of CPD.
    Type: Application
    Filed: May 14, 2003
    Publication date: January 13, 2005
    Inventors: Richard Riehle, Anthony Allen, Michaela Hofbauer, Alfred Haandrikman, Ronald Busink, Mark Crisp, John Hoglen, Huai Cheng, Francis Carlin, John Lapre, Harold Jabloner