Patents by Inventor Roger L. Parsons

Roger L. Parsons 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 preparing a sulfurized alkaline earth metal dodecylphenate
    Patent number: 9617496
    Abstract: A sulfurized alkaline earth metal (e.g., calcium) dodecylphenate is prepared by reacting (i) dodecylphenol with (ii) calcium hydroxide or calcium oxide in an amount of about 0.3 to about 0.7 moles per mole of dodecylphenol charged and (iii) an alkylene glycol in an amount of about 0.13 to about 0.6 moles per mole of dodecylphenol charged; and reacting the product of the first step with sulfur in an amount of about 1.6 to about 3 moles per mole of dodecylphenol charged; and thereafter optionally reacting the product with additional calcium hydroxide or calcium oxide and with carbon dioxide so as to form an overbased phenate. The product thus prepared has reduced levels of monomeric dodecylphenol.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: April 11, 2017
    Assignee: The Lubrizol Corporation
    Inventors: Gary M. Walker, Roger L. Sowerby, James P. Roski, Roger L. Parsons, Christopher L. Friend, Andre Grange, Christopher J. Ciolli, Mohamed G. Fahmy, Jayasooriya Sujith Perera
  • METHOD FOR PREPARING A SULFURIZED ALKALINE EARTH METAL DODECYLPHENATE
    Publication number: 20170015925
    Abstract: An overbased sulfurized alkaline earth metal alkylphenate is prepared by reacting an alkylphenol with an alkaline earth metal hydroxide or an alkaline earth metal oxide and sulfur in the presence of an alkylene glycol or dialkylene glycol, or ether thereof and in the presence of an oil of lubricating viscosity, and optionally further reacting the product thereof with carbon dioxide; thereby forming a sulfurized alkaline earth metal alkylphenate composition in oil. The composition is heated and subjected to steam stripping followed by filtration. The resulting product exhibits an improved rate and efficiency of filtration.
    Type: Application
    Filed: March 23, 2015
    Publication date: January 19, 2017
    Inventors: Mohamed G. Fahmy, Roger L. Parsons, Lindsey K. Conant, Darren J. Becker, Jeremy T. Strauch, Rodney J. Lukaszewski
  • Method for Preparing a Sulfurized Alkaline Earth Metal Dodecylphenate
    Publication number: 20150045269
    Abstract: A sulfurized alkaline earth metal (e.g., calcium) dodecylphenate is prepared by reacting (i) dodecylphenol with (ii) calcium hydroxide or calcium oxide in an amount of about 0.3 to about 0.7 moles per mole of dodecylphenol charged and (iii) an alkylene glycol in an amount of about 0.13 to about 0.6 moles per mole of dodecylphenol charged; and reacting the product of the first step with sulfur in an amount of about 1.6 to about 3 moles per mole of dodecylphenol charged; and thereafter optionally reacting the product with additional calcium hydroxide or calcium oxide and with carbon dioxide so as to form an overbased phenate. The product thus prepared has reduced levels of monomeric dodecylphenol.
    Type: Application
    Filed: February 6, 2013
    Publication date: February 12, 2015
    Applicant: The Lubrizol Corporation
    Inventors: Gary M. Walker, Roger L. Sowerby, James P. Roski, Roger L. Parsons, Christopher L. Friend, Andre Grange, Christopher J. Ciolli, Mohamed G. Fahmy, Jayasooriya Sujith Perera