Patents by Inventor Christopher A. Simoneau

Christopher A. Simoneau 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).

  • Publication number: 20190322802
    Abstract: Described herein are methods of preparing poly(alkylene carbonate) polymers comprising an increased ratio of primary hydroxyl end groups to secondary hydroxyl end groups, and compositions thereof.
    Type: Application
    Filed: April 18, 2019
    Publication date: October 24, 2019
    Inventors: James Eagan, Christopher A. Simoneau, Jay J. Farmer
  • Patent number: 10392556
    Abstract: The disclosure pertains to amphiphilic block copolymers comprising an aliphatic polycarbonate chain coupled to a hydrophilic polymer. Such amphiphilic polymers may have the formula A-L-B, where A- is a polycarbonate or polyethercarbonate chain having from about 3 to about 500 repeating units, L is a linker moiety and —B is a hydrophilic oligomer having from about 4 to about 200 repeating units. Provided copolymers are useful as surfactants capable of emulsifying aqueous solutions and supercritical carbon dioxide. Provided copolymers also have utility as additives for use in enhanced oil recovery methods.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: August 27, 2019
    Assignee: Saudi Aramco Technologies Company
    Inventors: Scott D. Allen, Christopher A. Simoneau, John M. Salladay, David M. Hatfield, John W. Stevens
  • Publication number: 20190233586
    Abstract: In one aspect, the present disclosure encompasses polymerization systems for the copolymerization of CO2 and epoxides comprising 1) a catalyst including a metal coordination compound having a permanent ligand set and at least one ligand that is a polymerization initiator, and 2) a chain transfer agent having two or more sites that can initiate polymerization. In a second aspect, the present disclosure encompasses methods for the synthesis of polycarbonate polyols using the inventive polymerization systems. In a third aspect, the present disclosure encompasses polycarbonate polyol compositions characterized in that the polymer chains have a high percentage of —OH end groups and a high percentage of carbonate linkages. The compositions are further characterized in that they contain polymer chains having an embedded polyfunctional moiety linked to a plurality of individual polycarbonate chains.
    Type: Application
    Filed: April 9, 2019
    Publication date: August 1, 2019
    Inventors: Scott D. Allen, Geoffrey W. Coates, Anna E. Cherian, Christopher A. Simoneau, Alexei A. Gridnev, Jay J. Farmer
  • Patent number: 10308759
    Abstract: The present invention encompasses CO2-based polycarbonate polyols that do not degrade from the chain ends to form cyclic carbonate. Importantly, the inventive polyol compositions retain —OH end group functionality desirable for thermoset applications.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: June 4, 2019
    Assignee: Saudi Aramco Technologies Company
    Inventor: Christopher A. Simoneau
  • Patent number: 10308761
    Abstract: The present invention provides methods for reducing induction periods in epoxide-CO2 copolymerizations. In certain embodiments, the methods include the step of contacting an epoxide with CO2 in the presence of two catalysts: an epoxide hydrolysis catalyst and an epoxide CO2 copolymerization catalyst. In another aspect, the invention provides catalyst compositions comprising a mixture of an epoxide hydrolysis catalyst and an epoxide CO2 copolymerization catalyst.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: June 4, 2019
    Assignee: Saudi Aramco Technologies Company
    Inventors: Scott D. Allen, Christopher A. Simoneau, William D. Keefe, Jeff R. Conuel
  • Publication number: 20190100648
    Abstract: The present invention encompasses polymer compositions comprising aliphatic polycarbonate chains containing functional groups that increase the polymer's ability to wet or adhere to inorganic materials. In certain embodiments, chain ends of the aliphatic polycarbonates are modified to introduce silicon-containing functional groups, boron-containing functional groups, phosphorous-containing functional groups, sulfonic acid groups or carboxylic acid groups.
    Type: Application
    Filed: October 4, 2018
    Publication date: April 4, 2019
    Inventors: Scott D. Allen, Christopher A. Simoneau, Jay J. Farmer
  • Patent number: 10138369
    Abstract: The present invention encompasses polymer compositions comprising aliphatic polycarbonate chains containing functional groups that increase the polymer's ability to wet or adhere to inorganic materials. In certain embodiments, chain ends of the aliphatic polycarbonates are modified to introduce silicon-containing functional groups, boron-containing functional groups, phosphorous-containing functional groups, sulfonic acid groups or carboxylic acid groups.
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: November 27, 2018
    Assignee: Saudi Aramco Technologies Company
    Inventors: Scott D. Allen, Christopher A. Simoneau, Jay J. Farmer
  • Publication number: 20180305605
    Abstract: The disclosure pertains to amphiphilic block copolymers comprising an aliphatic polycarbonate chain coupled to a hydrophilic polymer. Such amphiphilic polymers may have the formula A-L-B, where A- is a polycarbonate or polyethercarbonate chain having from about 3 to about 500 repeating units, L is a linker moiety and —B is a hydrophilic oligomer having from about 4 to about 200 repeating units. Provided copolymers are useful as surfactants capable of emulsifying aqueous solutions and supercritical carbon dioxide. Provided copolymers also have utility as additives for use in enhanced oil recovery methods.
    Type: Application
    Filed: March 16, 2018
    Publication date: October 25, 2018
    Inventors: Scott D. Allen, Christopher A. Simoneau, John M. Salladay, David M. Hatfield, John W. Stevens
  • Patent number: 10011758
    Abstract: The present invention encompasses surface active agents useful in liquid or supercritical CO2 applications. The surface active agents comprise compounds containing a hydrocarbon segment and an aliphatic polycarbonate segment: The invention also provides methods of making the surface active agents and of using them in supercritical CO2 applications.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: July 3, 2018
    Assignees: Sasol Chemicals (USA) LLC, Novomer, Inc.
    Inventors: Kurt McWilliams, Daniel T. Plummer, Kip D. Sharp, Scott D. Allen, Christopher Simoneau
  • Publication number: 20180142072
    Abstract: Urethane-urea-acrylic cast sheet materials are made from a reaction product of components including polyisocyanate compound having at least two isocyanate functional groups and optional polyol (or pre-reacted urethane prepolymer having at least two isocyanate functional groups), curative having at least two amine functional groups, acrylic monomer, and optional multifunctional monomer having a first functional group having an active hydrogen and a second functional group having at least one double bond. The urethane-urea-acrylic cast sheet materials exhibit excellent impact properties and desirable hardness while also maintaining optical properties such as low haze that can be comparable to that of conventional cast acrylic sheet.
    Type: Application
    Filed: November 21, 2017
    Publication date: May 24, 2018
    Inventors: Christopher A. Simoneau, Carlos B. Guerra
  • Publication number: 20170349616
    Abstract: The present invention provides novel metal complexes, methods of making, and methods of using the same.
    Type: Application
    Filed: August 22, 2017
    Publication date: December 7, 2017
    Inventors: Gabriel E. Job, Scott D. Allen, Christopher Simoneau, Ronald R. Valente, Jay J. Farmer
  • Patent number: 9771388
    Abstract: The present invention provides novel metal complexes, methods of making, and methods of using the same.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: September 26, 2017
    Assignee: Saudi Aramco Technologies Company
    Inventors: Gabriel Job, Scott D. Allen, Christopher Simoneau, Ronald Valente, Jay J. Farmer
  • Publication number: 20170183447
    Abstract: The present invention provides methods for reducing induction periods in epoxide-CO2 copolymerizations. In certain embodiments, the methods include the step of contacting an epoxide with CO2 in the presence of two catalysts: an epoxide hydrolysis catalyst and an epoxide CO2 copolymerization catalyst. In another aspect, the invention provides catalyst compositions comprising a mixture of an epoxide hydrolysis catalyst and an epoxide CO2 copolymerization catalyst.
    Type: Application
    Filed: December 2, 2016
    Publication date: June 29, 2017
    Inventors: Scott D. Allen, Christopher A. Simoneau, William D. Keefe, Jeff R. Conuel
  • Publication number: 20170022319
    Abstract: The present invention encompasses CO2-based polycarbonate polyols that do not degrade from the chain ends to form cyclic carbonate. Importantly, the inventive polyol compositions retain —OH end group functionality desirable for thermoset applications.
    Type: Application
    Filed: April 3, 2015
    Publication date: January 26, 2017
    Inventor: Christopher A. Simoneau
  • Patent number: 9512269
    Abstract: The present invention provides methods for reducing induction periods in epoxide-CO2 copolymerizations. In certain embodiments, the methods include the step of contacting an epoxide with CO2 in the presence of two catalysts: an epoxide hydrolysis catalyst and an epoxide CO2 copolymerization catalyst. In another aspect, the invention provides catalyst compositions comprising a mixture of an epoxide hydrolysis catalyst and an epoxide CO2 copolymerization catalyst.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: December 6, 2016
    Assignee: Novomer, Inc.
    Inventors: Scott D. Allen, Christopher A. Simoneau, William D. Keefe, Jeff R. Conuel
  • Publication number: 20150232496
    Abstract: The present invention provides novel metal complexes, methods of making, and methods of using the same.
    Type: Application
    Filed: August 22, 2013
    Publication date: August 20, 2015
    Inventors: Gabriel Job, Scott D. Allen, Christopher Simoneau, Ronald Valente, Jay J. Farmer
  • Publication number: 20150051369
    Abstract: The present invention provides methods for reducing induction periods in epoxide-CO2 copolymerizations. In certain embodiments, the methods include the step of contacting an epoxide with CO2 in the presence of two catalysts: an epoxide hydrolysis catalyst and an epoxide CO2 copolymerization catalyst. In another aspect, the invention provides catalyst compositions comprising a mixture of an epoxide hydrolysis catalyst and an epoxide CO2 copolymerization catalyst.
    Type: Application
    Filed: December 20, 2012
    Publication date: February 19, 2015
    Inventors: Scott D. Allen, Christopher A. Simoneau, William D. Keefe, Jeff R. Conuel
  • Publication number: 20140072806
    Abstract: The present invention encompasses polymer compositions comprising aliphatic polycarbonate chains containing functional groups that increase the polymer's ability to wet or adhere to inorganic materials. In certain embodiments, chain ends of the aliphatic polycarbonates are modified to introduce silicon-containing functional groups, boron-containing functional groups, phosphorous-containing functional groups, sulfonic acid groups or carboxylic acid groups.
    Type: Application
    Filed: May 9, 2012
    Publication date: March 13, 2014
    Applicant: NOVOMER, INC.
    Inventors: Scott D. Allen, Christopher A. Simoneau, Jay J. Farmer