Patents by Inventor Stanely L. Hager

Stanely L. Hager 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).

  • Dispersion polyols for hypersoft polyurethane foam
    Patent number: 6218444
    Abstract: Dispersion polyols which are liquid-liquid dispersions containing a first having a substantially Polyoxypropylene internal block having an equivalent weight in excess of about 700 Da and a high oxyethylene-content external block, and a second polyol which is a substantially polyoxyethylene polyol containing minimally 50 weight percent oxyethylene moieties. The dispersion polyols are stable and exhibit broad processing latitude when preparing hypersoft polyurethane foams. The dispersion polyols are advantageously prepared in situ, preferably in the presence of a double metal cyanide oxyalkylation catalyst.
    Type: Grant
    Filed: March 6, 2000
    Date of Patent: April 17, 2001
    Assignee: Bayer Antwerp N.V.
    Inventors: Stanely L. Hager, Jack R. Reese, II
  • Dispersion polyols for hypersoft polyurethane foam
    Patent number: 6063309
    Abstract: Dispersion polyols which are liquid--liquid dispersions containing a first polyol having a substantially polyoxypropylene internal block having an equivalent weight in excess of about 700 Da and a high oxyethylene-content external block, and a second polyol which is a substantially polyoxyethylene polyol containing minimally 50 weight percent oxyethylene moieties. The dispersion polyols are stable and exhibit broad processing latitude when preparing hypersoft polyurethane foams. The dispersion polyols are advantageously prepared in situ, preferably in the presence of a double metal cyanide oxyalkylation catalyst.
    Type: Grant
    Filed: July 13, 1998
    Date of Patent: May 16, 2000
    Assignee: ARCO Chemical Technology L.P.
    Inventors: Stanely L. Hager, Jack R. Reese, II