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).
-
Patent number: 11814478Abstract: 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: GrantFiled: June 13, 2019Date of Patent: November 14, 2023Assignee: Novomer, Inc.Inventors: John Osaheni, Robert E. Lapointe
-
Patent number: 11351519Abstract: 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: GrantFiled: October 31, 2017Date of Patent: June 7, 2022Assignee: Novomer, Inc.Inventors: Han Lee, John B. Ruhl, Robert E. Lapointe, Kyle Sherry, Alexander Tseitlin, Sadesh H. Sookraj
-
Publication number: 20210221950Abstract: 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: ApplicationFiled: June 13, 2019Publication date: July 22, 2021Inventors: John Osaheni, Robert E. Lapointe
-
Patent number: 11027242Abstract: 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: GrantFiled: February 22, 2019Date of Patent: June 8, 2021Assignee: Novomer, Inc.Inventors: Robert E. Lapointe, Scott D. Allen, Han Lee, Thomas Widzinski, Jay J. Farmer
-
Patent number: 10662211Abstract: 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: GrantFiled: February 21, 2018Date of Patent: May 26, 2020Assignee: Saurdi Aramco Technologies CompanyInventors: Scott D. Allen, Anna E. Cherian, Chris A. Simoneau, Jay J. Farmer, Geoffrey W. Coates, Alexei A. Gridnev, Robert E. LaPointe
-
Publication number: 20190255488Abstract: 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: ApplicationFiled: February 22, 2019Publication date: August 22, 2019Applicant: Novomer, Inc.Inventors: Robert E. LAPOINTE, Scott D. ALLEN, Han LEE, Thomas WIDZINSKI, Jay J. FARMER
-
Publication number: 20190255512Abstract: 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: ApplicationFiled: October 31, 2017Publication date: August 22, 2019Applicant: Novomer, Inc.Inventors: Han LEE, John B. RUHL, Robert E. LAPOINTE, Kyle SHERRY, Alexander TSEITLIN, Sadesh H. SOOKRAJ
-
Patent number: 10245559Abstract: 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: GrantFiled: June 7, 2016Date of Patent: April 2, 2019Assignee: Novomer, Inc.Inventors: Robert E. Lapointe, Scott D. Allen, Han Lee, Thomas Widzinski, Jay J. Farmer
-
Publication number: 20180179242Abstract: 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: ApplicationFiled: February 21, 2018Publication date: June 28, 2018Inventors: Scott D. Allen, Anna E. Cherian, Chris A. Simoneau, Jay J. Farmer, Geoffrey W. Coates, Alexei A. Gridnev, Robert E. LaPointe
-
Patent number: 9951096Abstract: 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: GrantFiled: August 30, 2016Date of Patent: April 24, 2018Assignee: Saudi Aramco Technologies CompanyInventors: Scott D. Allen, Anna E. Cherian, Chris A. Simoneau, Jay J. Farmer, Geoffrey W. Coates, Alexei Gridnev, Robert E. LaPointe
-
Patent number: 9914689Abstract: 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: GrantFiled: October 11, 2016Date of Patent: March 13, 2018Assignee: Novomer, Inc.Inventors: Richard V. Porcelli, Jay J. Farmer, Robert E. Lapointe
-
Publication number: 20170247309Abstract: 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: ApplicationFiled: October 11, 2016Publication date: August 31, 2017Applicant: Novomer, Inc.Inventors: Richard V. PORCELLI, Jay J. FARMER, Robert E. LAPOINTE
-
Publication number: 20170183369Abstract: 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: ApplicationFiled: August 30, 2016Publication date: June 29, 2017Inventors: Scott D. Allen, Anna E. Cherian, Chris A. Simoneau, Jay J. Farmer, Geoffrey W. Coates, Alexei Gridnev, Robert E. LaPointe
-
Patent number: 9505878Abstract: 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: GrantFiled: February 6, 2015Date of Patent: November 29, 2016Assignee: 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: 20160288057Abstract: 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: ApplicationFiled: June 7, 2016Publication date: October 6, 2016Applicant: Novomer, Inc.Inventors: Robert E. LAPOINTE, Scott D. ALLEN, Han LEE, Thomas WIDZINSKI, Jay J. FARMER
-
Publication number: 20150299083Abstract: 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: ApplicationFiled: June 29, 2015Publication date: October 22, 2015Inventors: Richard V. Porcelli, Jay J. Farmer, Robert E. Lapointe
-
Publication number: 20150252145Abstract: 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: ApplicationFiled: February 6, 2015Publication date: September 10, 2015Inventors: Scott D. Allen, Anna E. Cherian, Chris A. Simoneau, Jay J. Farmer, Geoffrey W. Coates, Alexei Gridnev, Robert E. LaPointe
-
Patent number: 9096510Abstract: 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: GrantFiled: October 25, 2012Date of Patent: August 4, 2015Assignee: NOVOMER, INC.Inventors: Richard V. Porcelli, Jay J. Farmer, Robert E. Lapointe
-
Patent number: 8956989Abstract: 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: GrantFiled: January 31, 2013Date of Patent: February 17, 2015Assignee: 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: 8951930Abstract: 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: GrantFiled: January 31, 2013Date of Patent: February 10, 2015Assignee: Novomer, Inc.Inventors: Scott D. Allen, Anna E. Cherian, Chris A. Simoneau, Jay J. Farmer, Geoffrey W. Coates, Alexei Gridnev, Robert E. LaPointe