Patents by Inventor Maria M. Ludvig

Maria M. Ludvig 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).

  • Preparation of MFI type crystalline zeolitic aluminosilicate
    Patent number: 6667023
    Abstract: A process for synthesizing a crystalline aluminosilicate zeolite having an MFI structure comprising crystallizing the zeolite from an alkaline aqueous reaction mixture that comprises SiO2 and Al2O3 or their hydrated derivatives, and an amorphous aluminosilicate nucleating gel with an SiO2/Al2O3 ratio of from about 10 to less than 20. The reaction mixture does not contain an organic template.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: December 23, 2003
    Assignee: Akzo Nobel N.V.
    Inventor: Maria M. Ludvig
  • PREPARATION OF MFI TYPE CRYSTALLINE ZEOLITIC ALUMINOSILICATE
    Publication number: 20030170172
    Abstract: A process for synthesizing a crystalline aluminosilicate zeolite having an MFI structure comprising crystallizing the zeolite from an alkaline aqueous reaction mixture that comprises SiO2 and Al2O3 or their hydrated derivatives, and an amorphous aluminosilicate nucleating gel with an SiO2Al2O3 ratio of from about 10 to less than 20. The reaction mixture does not contain an organic template.
    Type: Application
    Filed: February 19, 2003
    Publication date: September 11, 2003
    Inventor: Maria M. Ludvig