Patents by Inventor Michael K. Hagans

Michael K. Hagans 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 the decomposition of cumene hydroperoxide
    Patent number: 8247616
    Abstract: A method of producing phenol, acetone and alpha-methyl styrene. A mixture of cumene hydroperoxide and dimethylbenzyl alcohol is provided. The mixture is subjected to a first stage reaction in the presence of about 0.5 to 1.5 wt. % water and about 20 to 400 ppm sulfuric acid at a reactor pressure of about 450 to 760 mm Hg, a temperature of about 60 to 85° C., and a residence time of 4 to 45 minutes to produce a composition having an acetone to phenol mole ratio of about 1 to 1.5. The composition is subjected to a second stage reaction in the presence of about 0.5 to 3 wt. % additional water with a second stage reactor temperature of about 110 to 150° C. and a residence time of 0.5 to 30 minutes.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: August 21, 2012
    Assignee: Honeywell International Inc.
    Inventors: Scott R. Keenan, Michael K. Hagans
  • Process for the recovery of oxazole
    Patent number: 7211674
    Abstract: A process for the recovery of oxazole comprising contacting a mixture comprising oxazole and acetonitrile with an acid to form an acid salt of oxazole; separating acid salt of the oxazole from the mixture; and neutralizing the acid salt of oxazole separated from the mixture to release oxazole.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: May 1, 2007
    Assignee: Ineos USA LLC
    Inventors: Mark C. Cesa, Eric J. Moore, Mark R. Bruce, Sanjay P. Godbole, Michael K. Hagans, David R. Bender
  • Process for the recovery of oxazole
    Publication number: 20040230059
    Abstract: A process for the recovery of oxazole comprising contacting a mixture comprising oxazole and acetonitrile with an acid to form an acid salt of oxazole; separating acid salt of the oxazole from the mixture; and neutralizing the acid salt of oxazole separated from the mixture to release oxazole.
    Type: Application
    Filed: December 17, 2003
    Publication date: November 18, 2004
    Inventors: Mark C. Cesa, Eric J. Moore, Mark R. Bruce, Sanjay P. Godbole, Michael K. Hagans, David R. Bender