Patents by Inventor John A. Muzzio

John A. Muzzio 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 the removal of catalyst from polyether polyol
    Patent number: 4137398
    Abstract: An improvement in the process of alkaline catalyst removal from crude polyoxyalkylene ether polyols is achieved by treating a mixture of crude polyol, adsorbent, and water with magnesium carbonate and carbon dioxide just prior to filtration.
    Type: Grant
    Filed: June 9, 1978
    Date of Patent: January 30, 1979
    Assignee: BASF Wyandotte Corporation
    Inventor: John A. Muzzio
  • Process for the removal of catalyst from polyether polyol
    Patent number: 4129718
    Abstract: An improvement in the process of alkaline catalyst removal from crude polyoxyalkylene ether polyols is achieved by treating a mixture of crude polyol, adsorbent, and water with carbon dioxide just prior to filtration.
    Type: Grant
    Filed: December 1, 1977
    Date of Patent: December 12, 1978
    Assignee: BASF Wyandotte Corporation
    Inventor: John A. Muzzio
  • Process for the removal of catalysts from polyether polyols employing water and adsorbent
    Patent number: 4029879
    Abstract: An improvement in the process of catalyst removal in the preparation of polyether polyols is achieved by adding a critical amount of water from about 1 to about 5 percent by weight based on the weight of polyol to an adsorbent synthetic magnesium silicate-polyol mixture followed by filtration to remove the adsorbent.
    Type: Grant
    Filed: November 17, 1975
    Date of Patent: June 14, 1977
    Assignee: BASF Wyandotte Corporation
    Inventor: John A. Muzzio