Patents by Inventor John J. Jardas

John J. Jardas 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 preparing alkali metal pyrithione and its polyvalent metal complexes from pyridine oxide
    Patent number: 9079857
    Abstract: The present invention generally relates to a novel process for preparing alkali metal pyrithione from pyridine N-oxide, using a sulfurination agent and a base agent. In particular, the present invention relates to an efficient process for preparing polyvalent metal complexes of sodium pyrithione from the alkali metal pyridine N-oxide described herein.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: July 14, 2015
    Assignee: Arch Chemicals, Inc.
    Inventors: Rahim Hani, John J. Jardas, Richard Dumas, David Lei
  • Chemical method of making a suspension, emulsion or dispersion of pyrithione particles
    Patent number: 8709460
    Abstract: A method for producing a suspension, emulsion or dispersion of de-agglomerated particles (advantageously submicron-sized particles) of pyrithione salts comprising contacting agglomerated pyrithione salt particles with a de-agglomerating agent to produce the desired de-agglomerated pyrithione salt particles. Also disclosed is a method for making de-agglomerated submicron-sized particles of pyrithione salts comprising a heating step. Also disclosed are the particles made by the above methods and compositions comprising the particles and a base medium.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: April 29, 2014
    Assignee: Arch Chemicals, Inc.
    Inventors: Saeed M. Mohseni, Charles W. Kaufman, David C. Beaty, John J. Jardas, George Polson
  • Process for Preparing Alkali Metal Pyrithione and its Polyvalent Metal Complexes from Pyridine Oxide
    Publication number: 20130261309
    Abstract: The present invention generally relates to a novel process for preparing alkali metal pyrithione from pyridine N-oxide, using a sulfurination agent and a base agent. In particular, the present invention relates to an efficient process for preparing polyvalent metal complexes of sodium pyrithione from the alkali metal pyridine N-oxide described herein.
    Type: Application
    Filed: March 15, 2013
    Publication date: October 3, 2013
    Applicant: Arch Chemicals, Inc.
    Inventors: Rahim Hani, John J. Jardas, Richard Dumas, David Lei
  • Chemical method of making a suspension, emulsion or dispersion of pyrithione particles
    Publication number: 20090215739
    Abstract: A method for producing a suspension, emulsion or dispersion of de-agglomerated particles (advantageously submicron-sized particles) of pyrithione salts comprising contacting agglomerated pyrithione salt particles with a de-agglomerating agent to produce the desired de-agglomerated pyrithione salt particles. Also disclosed is a method for making de-agglomerated submicron-sized particles of pyrithione salts comprising a heating step. Also disclosed are the particles made by the above methods and compositions comprising the particles and a base medium.
    Type: Application
    Filed: April 23, 2009
    Publication date: August 27, 2009
    Inventors: Saeed M. Mohseni, Charles W. Kaufman, David C. Beaty, John J. Jardas, George Polson
  • Chemical method of making a suspension, emulsion or dispersion of pyrithione particles
    Patent number: 7544367
    Abstract: A method for producing a suspension, emulsion or dispersion of de-agglomerated particles (advantageously submicron-sized particles) of pyrithione salts comprising contacting agglomerated pyrithione salt particles with a de-agglomerating agent to produce the desired de-agglomerated pyrithione salt particles. Also disclosed is a method for making de-agglomerated submicron-sized particles of pyrithione salts comprision a heating step. Also disclosed are the particles made by the above methods and compositions comprising the particles and a base medium.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: June 9, 2009
    Assignee: Arch Chemicals, Inc.
    Inventors: Saeed M. Mohseni, Charles W. Kaufman, David C. Beaty, John J. Jardas, George Polson
  • Sonic method of enhancing chemical reactions to provide uniform, non-agglomerated particles
    Patent number: 6682724
    Abstract: A method for making a suspension, dispersion or emulsion of non-agglomerated particles comprising forming particles in a liquid medium, wherein sonic energy is applied to the liquid medium at the point of contact of the reactants during the particle forming step to produce the suspension, dispersion or emulsion of non-agglomerated particles. The invention is also directed to a method for making a suspension of non-agglomerated pyrithione salt particles, comprising the steps of forming pyrithione salt particles in a liquid medium, wherein sonic energy is applied to the liquid medium during the forming step to produce the suspension of non-agglomerated pyrithione salt particles.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: January 27, 2004
    Assignee: Arch Chemcials, Inc.
    Inventors: Saeed H. Mohseni, John J. Jardas
  • Sonic method of enhancing chemical reactions to provide uniform, non-agglomerated particles
    Publication number: 20020197282
    Abstract: A method for making a suspension, dispersion or emulsion of non-agglomerated particles comprising forming particles in a liquid medium, wherein sonic energy is applied to the liquid medium at the point of contact of the reactants during the particle forming step to produce the suspension, dispersion or emulsion of non-agglomerated particles. The invention is also directed to a method for making a suspension of non-agglomerated pyrithione salt particles, comprising the steps of forming pyrithione salt particles in a liquid medium, wherein sonic energy is applied to the liquid medium during the forming step to produce the suspension of non-agglomerated pyrithione salt particles.
    Type: Application
    Filed: June 20, 2002
    Publication date: December 26, 2002
    Inventors: Saeed H. Mohseni, John J. Jardas
  • Chemical method of making a suspension, emulsion or dispersion of pyrithione particles
    Publication number: 20020197283
    Abstract: A method for producing a suspension, emulsion or dispersion of de-agglomerated particles (advantageously submicron-sized particles) of pyrithione salts comprising contacting agglomerated pyrithione salt particles with a de-agglomerating agent to produce the desired de-agglomerated pyrithione salt particles. Also disclosed is a method for making de-agglomerated submicron-sized particles of pyrithione salts comprision a heating step. Also disclosed are the particles made by the above methods and compositions comprising the particles and a base medium.
    Type: Application
    Filed: June 20, 2002
    Publication date: December 26, 2002
    Inventors: Saeed M. Mohseni, Charles W. Kaufman, David C. Beaty, John J. Jardas, George Polson
  • Sonic method of enhancing chemical reactions to provide uniform, non-agglomerated particles
    Patent number: 6465015
    Abstract: A method for making a suspension, dispersion or emulsion of non-agglomerated particles comprising forming particles in a liquid medium, wherein sonic energy is applied to the liquid medium at the point of contact of the reactants during the particle forming step to produce the suspension, dispersion or emulsion of non-agglomerated particles. The invention is also directed to a method for making a suspension of non-agglomerated pyrithione salt particles, comprising the steps of forming pyrithione salt particles in a liquid medium, wherein sonic energy is applied to the liquid medium during the forming step to produce the suspension of non-agglomerated pyrithione salt particles.
    Type: Grant
    Filed: February 23, 1999
    Date of Patent: October 15, 2002
    Assignee: Arch Chemicals, Inc.
    Inventors: Saeed H. Mohseni, John J. Jardas
  • Chemical method of making a suspension, emulsion or dispersion of pyrithione particles
    Patent number: 6432432
    Abstract: A method for producing a suspension, emulsion or dispersion of de-agglomerated particles (advantageously submicron-sized particles) of pyrithione salts comprising contacting agglomerated pyrithione salt particles with a de-agglomerating agent to produce the desired de-agglomerated pyrithione salt particles. Also disclosed is a method for making de-agglomerated submicron-sized particles of pyrithione salts comprision a heating step. Also disclosed are the particles made by the above methods and compositions comprising the particles and a base medium.
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: August 13, 2002
    Assignee: Arch Chemicals, Inc.
    Inventors: Saeed M. Mohseni, Charles W. Kaufman, David C. Beaty, John J. Jardas, George Polson
  • Non-spherical and non-platelet forms of pyrithione salts and methods of making same
    Patent number: 6242007
    Abstract: The present invention relates to non-spherical and/or non-platelet pyrithione particles. Also disclosed is a method for producing non-spherical and/or non-platelet particles of pyrithione salts, comprising reacting pyrithione acid or a water-soluble salt of pyrithione and a water-soluble polyvalent metal salt in the presence of an ionic surfactant composition at temperature from about 20° C. to about 60° C. and at a pH from 4-9 to produce non-spherical and/or non-platelet particles of pyrithione salts. The present invention further relates to particles made by the above methods and products, such as shampoos, soaps, and skin-care medicaments made using these particles.
    Type: Grant
    Filed: October 1, 1999
    Date of Patent: June 5, 2001
    Assignee: Arch Chemicals, Inc.
    Inventors: Saeed H. Mohseni, John J. Jardas, George Polson, David C. Beaty, Charles W. Kaufman
  • Non-spherical and non-platelet crystalline forms of pyrithione salts
    Patent number: 6017562
    Abstract: The present invention relates to non-spherical and/or non-platelet pyrithione particles. Also disclosed is a method for producing non-spherical and/or non-platelet particles of pyrithione salts, comprising reacting pyrithione or a water-soluble salt of pyrithione and a water-soluble polyvalent metal salt in the presence of a dispersant at a temperature from about 20.degree. C. to about 60.degree. C. to produce non-spherical and/or non-platelet particles of pyrithione salts. The present invention further relates to particles made by the above methods and products, such as shampoos, soaps, and skin-care medicaments made using these particles.
    Type: Grant
    Filed: February 18, 1998
    Date of Patent: January 25, 2000
    Assignee: Arch Chemicals, Inc.
    Inventors: Charles W. Kaufman, Saeed H. Mohseni, John J. Jardas, George A. Polson, David C. Beaty
  • Process for preparing copper pyrithione
    Patent number: 5650095
    Abstract: The present invention relates to a process for producing a gel-free dispersion or solution of copper pyrithione employing at least one surfactant. Also claimed is the dispersion or solution itself, as well as a solid particulate copper pyrithione composition comprising copper pyrithione particles having a particle shape selected from the group consisting of rods, spheres, needles, platelets and combinations thereof, and optionally containing at least a trace amount of a surfactant on the outer surface of at least a portion of said particles.
    Type: Grant
    Filed: January 22, 1996
    Date of Patent: July 22, 1997
    Assignee: Olin Corporation
    Inventors: Saeed M. Hosseini, Charles W. Kaufman, Patrick Hobbs, John J. Jardas, Murray A. Ruggiero, Shoaib Arif
  • Process for preparing copper pyrithione
    Patent number: 5540860
    Abstract: The present invention relates to a process for producing a gel-free dispersion or solution of copper pyrithione employing at least one surfactant. Also claimed is the dispersion or solution itself, as well as a solid particulate copper pyrithione composition comprising copper pyrithione particles having a particle shape selected from the group consisting of rods, spheres, needles, platelets and combinations thereof, and optionally containing at least a trace amount of a surfactant on the outer surface of at least a portion of said particles.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: July 30, 1996
    Assignee: Olin Corporation
    Inventors: Saeed M. Hosseini, Charles W. Kaufman, Patrick Hobbs, John J. Jardas, Murray A. Ruggiero, Shoaib Arif