Patents by Inventor Marc Charendorff

Marc Charendorff 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).

  • METHOD FOR REDUCING EQUIPMENT FOULING IN (METH)ACRYLIC ACID PRODUCTION PROCESS
    Publication number: 20130281737
    Abstract: The present invention provides a method for reducing fouling of equipment during separation and purification steps of (meth)acrylic acid production by early removal of aldehyde impurities by adding a hydrazide compound well upstream of the separation and purification steps. In particular, carbodhydrazide may be added as an aldehyde scavenging agent to aqueous (meth)acrylic acid prior to dehydration and purification steps.
    Type: Application
    Filed: November 30, 2011
    Publication date: October 24, 2013
    Applicant: ROHM AND HAAS COMPANY
    Inventors: Marc Charendorff, Jamie Jerrick Juliette, Joy Mendoza, Rajesh Shah