Patents by Inventor di Silvana Rensina Antonnietta Silvestre

di Silvana Rensina Antonnietta Silvestre 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).

  • PROCESS FOR PREPARING UNSATURATED POLYESTER
    Publication number: 20120121839
    Abstract: The present invention relates to a process for preparing an unsaturated polyester resin comprising itaconate ester units as reactive unsaturations by reacting at least itaconic acid and/or itaconic anhydride and at least one diol, wherein the process is effected in the presence of an inhibitor having a gelation activity factor less than or equal to (0.5) and having an efficiency factor of from (0.55) up to 1.
    Type: Application
    Filed: March 24, 2010
    Publication date: May 17, 2012
    Inventors: Marian Henryk Szkudlarek, Johan Franz Gradus Anton Jansen, Stefanus Jacobus Duyvestijn, di Silvana Rensina Antonnietta Silvestre