Patents by Inventor Michael C. Rocca

Michael C. Rocca 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 oxidation of cyclohexanone to &egr;-caprolactone
    Patent number: 6531615
    Abstract: This invention relates to a composition comprising antimony trifluoride and silica, a method for the preparation of said composition and use of said composition as a catalyst in a process for the oxidation of cyclohexanone to &egr;-caprolactone.
    Type: Grant
    Filed: January 30, 2001
    Date of Patent: March 11, 2003
    Assignee: Solvay (Societe Anonyme)
    Inventors: Michael C. Rocca, Graham Carr, Arnold B. Lambert, Duncan J. MacQuarrie, James H. Clark
  • Composition comprising antimony trifluoride and silica
    Publication number: 20010018399
    Abstract: This invention relates to a composition comprising antimony trifluoride and silica, a method for the preparation of said composition and use of said composition as a catalyst.
    Type: Application
    Filed: January 30, 2001
    Publication date: August 30, 2001
    Inventors: Michael C. Rocca, Graham Carr, Arnold B. Lambert, Duncan J. MacQuarrie, James H. Clark
  • Oxidation process
    Patent number: 5352840
    Abstract: Substituting aqueous hydrogen peroxide/hydrogen bromide for bromine in a known process for producing a ditertiaryalkyl substituted hydroxybenzaldehyde such as ditertiarybutyl hydroxybenzaldehyde from the corresponding ditertiaryalkyl substituted methylphenol results in a substantially impaired yield of product.Improved yields are obtained by employing a reaction temperature of at least 40.degree. C., preferably 50.degree. to 80.degree. C. in conjunction with a hydrophobic solvent such as chloroform. Preferably, the process employs very concentrated hydrogen peroxide solution, 65% to 75% w/w, introduced into the bromide-containing reaction mixture during a period of from 25 to 75 minutes.
    Type: Grant
    Filed: May 10, 1993
    Date of Patent: October 4, 1994
    Assignee: Solvay Interox Limited
    Inventors: Stephen G. Grundy, Kevan M. Reeve, Michael C. Rocca