Patents by Inventor Alan John Chalk

Alan John Chalk 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 PRODUCTION OF 2,6-DIMETHYLHEPT-5-ENAL BY BAEYER-VILLIGER OXIDATION
    Publication number: 20160318836
    Abstract: Disclosed is a process for the production of 2,6-dimethylhept-5-enal by Baeyer-Villiger oxidation of 3,7-dimethylocta-2,6-dienal in the presence of aqueous H2O2 and SeO2, followed by hydrolysis.
    Type: Application
    Filed: January 22, 2015
    Publication date: November 3, 2016
    Applicant: GIVAUDAN SA
    Inventors: Alan John CHALK, Andreas GOEKE, Martin Alan LOVCHIK
  • Preparation of unsaturated aldehydes from propargyl alcohol and conjugated diolefins
    Patent number: 6118027
    Abstract: Unsaturated aldehydes are prepared by mixing propargyl alcohol, a catalyst and a conjugated diolefin and heating the mixture for a time and at a temperature sufficient to form an unsaturated aldehyde. The diolefin may be 2-methylpentadiene, 2(5,5 dimethyl 5 hydroxy pentyl)1,3 butadiene or myrcene. The catalyst may be inorganic, organic, organometallic or mixtures thereof.
    Type: Grant
    Filed: April 20, 1999
    Date of Patent: September 12, 2000
    Assignee: Givaudan Roure (International) SA
    Inventors: Alan John Chalk, Joseph Anthony Virgilio