Patents by Inventor Marco Antonio Marquez-Benitez

Marco Antonio Marquez-Benitez 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 working up alkaline polyether polyols
    Patent number: 10131743
    Abstract: This invention relates to a process for preparing polyols which contain oxyalkylene units. This process comprises neutralizing a crude polyol by addition of an acid, optionally removing water, and removing the salts formed by neutralization. The crude polyol is contacted with the acid for at least 5 minutes.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: November 20, 2018
    Assignee: Covestro Deutschland AG
    Inventors: Klaus Lorenz, Marco Antonio Marquez-Benitez
  • METHOD FOR WORKING UP ALKALINE POLYETHER POLYOLS
    Publication number: 20160369051
    Abstract: This invention relates to a process for preparing polyols which contain oxyalkylene units. This process comprises neutralizing a crude polyol by addition of an acid, optionally removing water, and removing the salts formed by neutralization. The crude polyol is contacted with the acid for at least 5 minutes.
    Type: Application
    Filed: December 16, 2014
    Publication date: December 22, 2016
    Inventors: Klaus Lorenz, Marco Antonio Marquez-Benitez