Patents by Inventor Norman Raymond Laine

Norman Raymond Laine 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).

  • Silica bayerite/eta alumina
    Patent number: 6165351
    Abstract: A silica-containing bayerite alumina is prepared by reacting aluminum sulfate, sodium aluminate and sodium silicate at a pH of about 10.5 to 11.5, preferably in the presence of finely divided magnesium hydroxide "seeds". The silica-containing bayerite is heated to obtain a hydrothermally stable silica "stabilized" eta alumina which may be used in the preparation of catalytic compositions.
    Type: Grant
    Filed: February 23, 1994
    Date of Patent: December 26, 2000
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Norman Raymond Laine, John Allen Rudesill, Wu-Cheng Cheng