Patents by Inventor Robert E. LaPointe

Robert E. LaPointe 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: 20210221950
    Abstract: Provided herein are methods and systems for producing a thermally stable polylactone polymer comprising chain terminating the polymer with an end-capping agent to prevent scission of the polymer. Also provided is a thermally stable polylactone polymer wherein the polymer has a first end and a second end, wherein at least one of said first and second ends terminate in an end-capping agent.
    Type: Application
    Filed: June 13, 2019
    Publication date: July 22, 2021
    Inventors: John Osaheni, Robert E. Lapointe
  • Patent number: 11027242
    Abstract: The present invention provides nanofiltration membranes with reduced chemical reactivity that can be utilized in manufacturing processes where reactive feedstocks and/or products are utilized or produced. Methods of making and using the membranes are also provided.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: June 8, 2021
    Assignee: Novomer, Inc.
    Inventors: Robert E. Lapointe, Scott D. Allen, Han Lee, Thomas Widzinski, Jay J. Farmer
  • Patent number: 10662211
    Abstract: The present invention provides unimolecular metal complexes having increased activity in the copolymerization of carbon dioxide and epoxides. Also provided are methods of using such metal complexes in the synthesis of polymers. According to one aspect, the present invention provides metal complexes comprising an activating species with co-catalytic activity tethered to a multidentate ligand that is coordinated to the active metal center of the complex.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: May 26, 2020
    Assignee: Saurdi Aramco Technologies Company
    Inventors: Scott D. Allen, Anna E. Cherian, Chris A. Simoneau, Jay J. Farmer, Geoffrey W. Coates, Alexei A. Gridnev, Robert E. LaPointe
  • Publication number: 20190255488
    Abstract: The present invention provides nanofiltration membranes with reduced chemical reactivity that can be utilized in manufacturing processes where reactive feedstocks and/or products are utilized or produced. Methods of making and using the membranes are also provided.
    Type: Application
    Filed: February 22, 2019
    Publication date: August 22, 2019
    Applicant: Novomer, Inc.
    Inventors: Robert E. LAPOINTE, Scott D. ALLEN, Han LEE, Thomas WIDZINSKI, Jay J. FARMER
  • Publication number: 20190255512
    Abstract: Provided herein are absorbent polymers produced from beta-propiolactone, and methods and systems of producing such polymers. The beta-propiolactone may be derived from ethylene oxide and carbon monoxide. The absorbent polymer may be bio-based and/or biodegradable. The absorbent polymers may be used for diapers, adult incontinence products, and feminine hygiene products, as well as for agricultural applications.
    Type: Application
    Filed: October 31, 2017
    Publication date: August 22, 2019
    Applicant: Novomer, Inc.
    Inventors: Han LEE, John B. RUHL, Robert E. LAPOINTE, Kyle SHERRY, Alexander TSEITLIN, Sadesh H. SOOKRAJ
  • Patent number: 10245559
    Abstract: The present invention provides nanofiltration membranes with reduced chemical reactivity that can be utilized in manufacturing processes where reactive feedstocks and/or products are utilized or produced. Methods of making and using the membranes are also provided.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: April 2, 2019
    Assignee: Novomer, Inc.
    Inventors: Robert E. Lapointe, Scott D. Allen, Han Lee, Thomas Widzinski, Jay J. Farmer
  • Publication number: 20180179242
    Abstract: The present invention provides unimolecular metal complexes having increased activity in the copolymerization of carbon dioxide and epoxides. Also provided are methods of using such metal complexes in the synthesis of polymers. According to one aspect, the present invention provides metal complexes comprising an activating species with co-catalytic activity tethered to a multidentate ligand that is coordinated to the active metal center of the complex.
    Type: Application
    Filed: February 21, 2018
    Publication date: June 28, 2018
    Inventors: Scott D. Allen, Anna E. Cherian, Chris A. Simoneau, Jay J. Farmer, Geoffrey W. Coates, Alexei A. Gridnev, Robert E. LaPointe
  • Patent number: 9951096
    Abstract: The present invention provides unimolecular metal complexes having increased activity in the copolymerization of carbon dioxide and epoxides. Also provided are methods of using such metal complexes in the synthesis of polymers. According to one aspect, the present invention provides metal complexes comprising an activating species with co-catalytic activity tethered to a multidentate ligand that is coordinated to the active metal center of the complex.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: April 24, 2018
    Assignee: Saudi Aramco Technologies Company
    Inventors: Scott D. Allen, Anna E. Cherian, Chris A. Simoneau, Jay J. Farmer, Geoffrey W. Coates, Alexei Gridnev, Robert E. LaPointe
  • Patent number: 9914689
    Abstract: In one aspect, the present invention encompasses integrated processes for the conversion of epoxides to acrylic acid derivatives and polyesters. In certain embodiments, the methods of the present invention comprise the steps of: providing a feedstock stream comprising an epoxide and carbon monoxide; contacting the feedstock stream with a metal carbonyl in a first reaction zone to effect conversion of at least a portion of the provided epoxide to a beta lactone; directing the effluent from the first reaction zone to a second reaction zone where the beta lactone is subjected to conditions that convert it to a compound selected from the group consisting of: an alpha beta unsaturated acid, an alpha beta unsaturated ester, an alpha beta unsaturated amide, and an optionally substituted polypropiolactone polymer; and isolating a final product comprising the alpha-beta unsaturated carboxylic acid, the alpha-beta unsaturated ester, the alpha-beta unsaturated amide or the polypropiolactone.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: March 13, 2018
    Assignee: Novomer, Inc.
    Inventors: Richard V. Porcelli, Jay J. Farmer, Robert E. Lapointe
  • Publication number: 20170247309
    Abstract: In one aspect, the present invention encompasses integrated processes for the conversion of epoxides to acrylic acid derivatives and polyesters. In certain embodiments, the methods of the present invention comprise the steps of: providing a feedstock stream comprising an epoxide and carbon monoxide; contacting the feedstock stream with a metal carbonyl in a first reaction zone to effect conversion of at least a portion of the provided epoxide to a beta lactone; directing the effluent from the first reaction zone to a second reaction zone where the beta lactone is subjected to conditions that convert it to a compound selected from the group consisting of: an alpha beta unsaturated acid, an alpha beta unsaturated ester, an alpha beta unsaturated amide, and an optionally substituted polypropiolactone polymer; and isolating a final product comprising the alpha-beta unsaturated carboxylic acid, the alpha-beta unsaturated ester, the alpha-beta unsaturated amide or the polypropiolactone.
    Type: Application
    Filed: October 11, 2016
    Publication date: August 31, 2017
    Applicant: Novomer, Inc.
    Inventors: Richard V. PORCELLI, Jay J. FARMER, Robert E. LAPOINTE
  • Publication number: 20170183369
    Abstract: The present invention provides unimolecular metal complexes having increased activity in the copolymerization of carbon dioxide and epoxides. Also provided are methods of using such metal complexes in the synthesis of polymers. According to one aspect, the present invention provides metal complexes comprising an activating species with co-catalytic activity tethered to a multidentate ligand that is coordinated to the active metal center of the complex.
    Type: Application
    Filed: August 30, 2016
    Publication date: June 29, 2017
    Inventors: Scott D. Allen, Anna E. Cherian, Chris A. Simoneau, Jay J. Farmer, Geoffrey W. Coates, Alexei Gridnev, Robert E. LaPointe
  • Patent number: 9505878
    Abstract: The present invention provides unimolecular metal complexes having increased activity in the copolymerization of carbon dioxide and epoxides. Also provided are methods of using such metal complexes in the synthesis of polymers. According to one aspect, the present invention provides metal complexes comprising an activating species with co-catalytic activity tethered to a multidentate ligand that is coordinated to the active metal center of the complex.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: November 29, 2016
    Assignee: Novomer, Inc.
    Inventors: Scott D. Allen, Anna E. Cherian, Chris A. Simoneau, Jay J. Farmer, Geoffrey W. Coates, Alexei Gridnev, Robert E. LaPointe
  • Publication number: 20160288057
    Abstract: The present invention provides nanofiltration membranes with reduced chemical reactivity that can be utilized in manufacturing processes where reactive feedstocks and/or products are utilized or produced. Methods of making and using the membranes are also provided.
    Type: Application
    Filed: June 7, 2016
    Publication date: October 6, 2016
    Applicant: Novomer, Inc.
    Inventors: Robert E. LAPOINTE, Scott D. ALLEN, Han LEE, Thomas WIDZINSKI, Jay J. FARMER
  • Publication number: 20150299083
    Abstract: In one aspect, the present invention encompasses integrated processes for the conversion of epoxides to acrylic acid derivatives and polyesters. In certain embodiments, the methods of the present invention comprise the steps of: providing a feedstock stream comprising an epoxide and carbon monoxide; contacting the feedstock stream with a metal carbonyl in a first reaction zone to effect conversion of at least a portion of the provided epoxide to a beta lactone; directing the effluent from the first reaction zone to a second reaction zone where the beta lactone is subjected to conditions that convert it to a compound selected from the group consisting of: an alpha beta unsaturated acid, an alpha beta unsaturated ester, an alpha beta unsaturated amide, and an optionally substituted polypropiolactone polymer; and isolating a final product comprising the alpha-beta unsaturated carboxylic acid, the alpha-beta unsaturated ester, the alpha-beta unsaturated amide or the polypropiolactone.
    Type: Application
    Filed: June 29, 2015
    Publication date: October 22, 2015
    Inventors: Richard V. Porcelli, Jay J. Farmer, Robert E. Lapointe
  • Publication number: 20150252145
    Abstract: The present invention provides unimolecular metal complexes having increased activity in the copolymerization of carbon dioxide and epoxides. Also provided are methods of using such metal complexes in the synthesis of polymers. According to one aspect, the present invention provides metal complexes comprising an activating species with co-catalytic activity tethered to a multidentate ligand that is coordinated to the active metal center of the complex.
    Type: Application
    Filed: February 6, 2015
    Publication date: September 10, 2015
    Inventors: Scott D. Allen, Anna E. Cherian, Chris A. Simoneau, Jay J. Farmer, Geoffrey W. Coates, Alexei Gridnev, Robert E. LaPointe
  • Patent number: 9096510
    Abstract: The methods of the present invention comprise the steps of: providing a feedstock stream comprising an epoxide and carbon monoxide; contacting the feedstock stream with a metal carbonyl in a first reaction zone to effect conversion of at least a portion of the provided epoxide to a beta lactone; directing the effluent from the first reaction zone to a second reaction zone where the beta lactone is subjected to conditions that convert it to a compound selected from the group consisting of: an alpha beta unsaturated acid, an alpha beta unsaturated ester, an alpha beta unsaturated amide, and an optionally substituted polypropiolactone polymer; and isolating a final product comprising the alpha-beta unsaturated carboxylic acid, the alpha-beta unsaturated ester, the alpha-beta unsaturated amide or the polypropiolactone.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: August 4, 2015
    Assignee: NOVOMER, INC.
    Inventors: Richard V. Porcelli, Jay J. Farmer, Robert E. Lapointe
  • Patent number: 8956989
    Abstract: The present invention provides unimolecular metal complexes having increased activity in the copolymerization of carbon dioxide and epoxides. Also provided are methods of using such metal complexes in the synthesis of polymers. According to one aspect, the present invention provides metal complexes comprising an activating species with co-catalytic activity tethered to a multidentate ligand that is coordinated to the active metal center of the complex.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: February 17, 2015
    Assignee: Novomer, Inc.
    Inventors: Scott D. Allen, Anna E. Cherian, Chris A. Simoneau, Jay J. Farmer, Geoffrey W. Coates, Alexei Gridnev, Robert E. LaPointe
  • Patent number: 8951930
    Abstract: The present invention provides unimolecular metal complexes having increased activity in the copolymerization of carbon dioxide and epoxides. Also provided are methods of using such metal complexes in the synthesis of polymers. According to one aspect, the present invention provides metal complexes comprising an activating species with co-catalytic activity tethered to a multidentate ligand that is coordinated to the active metal center of the complex.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: February 10, 2015
    Assignee: Novomer, Inc.
    Inventors: Scott D. Allen, Anna E. Cherian, Chris A. Simoneau, Jay J. Farmer, Geoffrey W. Coates, Alexei Gridnev, Robert E. LaPointe
  • Patent number: 8946109
    Abstract: The present invention provides unimolecular metal complexes having increased activity in the copolymerization of carbon dioxide and epoxides. Also provided are methods of using such metal complexes in the synthesis of polymers. According to one aspect, the present invention provides metal complexes comprising an activating species with co-catalytic activity tethered to a multidentate ligand that is coordinated to the active metal center of the complex.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: February 3, 2015
    Assignee: Novomer, Inc.
    Inventors: Scott D. Allen, Anna E. Cherian, Chris A. Simoneau, Jay J. Farmer, Geoffrey W. Coates, Alexei Gridnev, Robert E. LaPointe
  • Publication number: 20140309399
    Abstract: The methods of the present invention comprise the steps of: providing a feedstock stream comprising an epoxide and carbon monoxide; contacting the feedstock stream with a metal carbonyl in a first reaction zone to effect conversion of at least a portion of the provided epoxide to a beta lactone; directing the effluent from the first reaction zone to a second reaction zone where the beta lactone is subjected to conditions that convert it to a compound selected from the group consisting of: an alpha beta unsaturated acid, an alpha beta unsaturated ester, an alpha beta unsaturated amide, and an optionally substituted polypropiolactone polymer; and isolating a final product comprising the alpha-beta unsaturated carboxylic acid, the alpha-beta unsaturated ester, the alpha-beta unsaturated amide or the polypropiolactone.
    Type: Application
    Filed: October 25, 2012
    Publication date: October 16, 2014
    Applicant: Novomer, Inc.
    Inventors: Richard V. Porcelli, Jay J. Farmer, Robert E. Lapointe