Patents by Inventor Donald N. Brattesani

Donald N. Brattesani 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).

  • Nickel alloy anodes for electrochemical cell
    Patent number: 4789449
    Abstract: Nickel alloy anodes are suitable for electrochemical cells that are used for the selective replacement of chlorine in organochlorine compounds with hydrogen and are resistant to corrosion. Electrochemical cells containing Hastalloy C-276 anodes and silver cathodes, for example, are used to convert tetrachloropicolinic acid to 3,6-dichloropicolinic acid.
    Type: Grant
    Filed: January 5, 1988
    Date of Patent: December 6, 1988
    Assignee: The Dow Chemical Company
    Inventors: Charles K. Bon, Donald N. Brattesani, Kevin S. Meldrum
  • Nickel alloy anodes for electrochemical dechlorination
    Patent number: 4778576
    Abstract: Nickel alloy anodes are suitable for electrochemical cells that are used for the selective replacement of chlorine in organochlorine compounds with hydrogen and are resistant to corrosion. Electrochemical cells containing Hastalloy C-276 anodes and silver cathodes, for example, are used to convert tetrachloropicolinic acid to 3,6-dichloropicolinic acid.
    Type: Grant
    Filed: July 31, 1986
    Date of Patent: October 18, 1988
    Assignee: The Dow Chemical Company
    Inventors: Charles K. Bon, Kevin S. Meldrum, Donald N. Brattesani
  • Electrolytic cell comprising stainless steel anode, basic aqueous electrolyte and a cathode at which tetrachloro-2-picolinate ions can be selectively reduced in high yield to 3,6-dichloropicolinate ions _
    Patent number: 4592811
    Abstract: An important increase in the yield of 3,6-dichloropicolinic acid prepared by electrolytic reduction of tetrachloro-2-picolinic acid (in basic, aqueous solution, at a silver cathode) results when a stainless steel anode is used, rather than those (graphite, e.g.) taught in the prior art (U.S. Pat. No. 4,217,185).
    Type: Grant
    Filed: April 8, 1985
    Date of Patent: June 3, 1986
    Assignee: The Dow Chemical Company
    Inventors: Demetrios Kyriacou, Donald N. Brattesani
  • Electrolytic cell comprising stainless steel anode, basic aqueous electrolyte and a cathode at which tetrachloro-2-picolinate ions can be selectively reduced in high yield to 3,6-dichloropicolinate ions
    Patent number: 4533454
    Abstract: An important increase in the yield of 3,6-dichloropicolinic acid prepared by electrolytic reduction of tetrachloro-2-picolinic acid (in basic, aqueous solution, at a silver cathode) results when a stainless steel anode is used, rather than those (graphite, e.g.) taught in the prior art (U.S. Pat. No. 4,217,185).
    Type: Grant
    Filed: September 28, 1981
    Date of Patent: August 6, 1985
    Assignee: The Dow Chemical Company
    Inventors: Demetrios Kyriacou, Donald N. Brattesani
  • Use of copper halide catalysts and certain epoxy compounds to oxidize nitro-substituted Schiff bases to benzoxazoles
    Patent number: 4120862
    Abstract: The combination of a copper halide catalyst certain peroxidic compounds has been found advantageous for the oxidation of Schiff bases of the formula ##STR1## to the corresponding benzoxazoles ##STR2## wherein one of R.sup.3 and R.sup.4 is --NO.sub.2 and the other is --H, alkyl of 1 to 20 carbons, or --NO.sub.2 ; and R.sup.1 and R.sup.2 are independently --H or alkyl of 1 to 20 carbons, with the proviso that R.sup.1, R.sup.2, R.sup.3 and R.sup.4 contain a total of 6 carbons. Benzoxazoles of the latter type have utility as organo-soluble, metallurgical extractants.
    Type: Grant
    Filed: August 25, 1977
    Date of Patent: October 17, 1978
    Assignee: The Dow Chemical Company
    Inventor: Donald N. Brattesani