Patents by Inventor Robert S. Landon

Robert S. Landon 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).

  • Patent number: 9598536
    Abstract: A process for polymerizing an epoxide monomer, preferably ethylene oxide, comprising carrying out the process in the presence of a catalytically active amount of a catalyst obtainable by a preparation process comprising admixing at least one alkaline earth metal, liquid ammonia, an alkylene oxide, which is optionally substituted by aromatic radicals, and an organic nitrile having at least one acidic hydrogen atom to prepare a slurry of modified alkaline earth hexammine in liquid ammonia; continuously transferring the slurry of modified alkaline earth hexammine in liquid ammonia into a stripper vessel and continuously evaporating ammonia, thereby accumulating the modified catalyst in the stripper vessel; and upon complete transfer of the slurry of modified alkaline earth hexammine into the stripper vessel, aging the modified catalyst to obtain the final polymerization catalyst; and a polymer obtainable by this process.
    Type: Grant
    Filed: January 21, 2013
    Date of Patent: March 21, 2017
    Inventors: John R. Simms, John M. Kenney, Robert S. Landon, Jeffrey G. Hippler
  • Patent number: 9527960
    Abstract: A process includes: (a) providing a powder containing hydrophilic particulates and hydrocarbon liquid; (b) providing polyolefin beads; and (c) forming a combination by combining the polyolefin beads with the powder.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: December 27, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: Robert S. Landon, Charles M. Vanek
  • Publication number: 20150376333
    Abstract: A process includes: (a) providing a powder containing hydrophilic particulates and hydrocarbon liquid; (b) providing polyolefin beads; and (c) forming a combination by combining the polyolefin beads with the powder.
    Type: Application
    Filed: February 28, 2014
    Publication date: December 31, 2015
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Robert S. Landon, Charles M. Vanek
  • Publication number: 20150166724
    Abstract: A process for polymerizing an epoxide monomer, preferably ethylene oxide, comprising carrying out the process in the presence of a catalytically active amount of a catalyst obtainable by a preparation process comprising admixing at least one alkaline earth metal, liquid ammonia, an alkylene oxide, which is optionally substituted by aromatic radicals, and an organic nitrile having at least one acidic hydrogen atom to prepare a slurry of modified alkaline earth hexammine in liquid ammonia; continuously transferring the slurry of modified alkaline earth hexammine in liquid ammonia into a stripper vessel and continuously evaporating ammonia, thereby accumulating the modified catalyst in the stripper vessel; and upon complete transfer of the slurry of modified alkaline earth hexammine into the stripper vessel, aging the modified catalyst to obtain the final polymerization catalyst; and a polymer obtainable by this process.
    Type: Application
    Filed: January 21, 2013
    Publication date: June 18, 2015
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: John R. Simms, John M. Kenney, Robert S. Landon, Jeffrey G. Hippler
  • Patent number: 5302767
    Abstract: Processes are disclosed for preparing [2.2] paracyclophane and derivatives thereof by conducting the Hofmann elimination of p-methylbenzyltrimethylammonium hydroxide, or derivatives thereof, in the presence of an effective amount of oxygen to inhibit the formation of by-product polymers. The oxygen can be introduced, for example, by a purge gas stream containing molecular oxygen. Products produced by the processes are also disclosed.
    Type: Grant
    Filed: March 26, 1993
    Date of Patent: April 12, 1994
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Richard A. Galley, Robert S. Landon, Kenneth C. Senior