Patents by Inventor Timothy M. Gillard
Timothy M. Gillard 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).
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Publication number: 20240066473Abstract: The present disclosure provides an article including an isoporous membrane disposed on a porous substrate. The iso-porous membrane includes a triblock copolymer or a pentablock copolymer. The isoporous membrane has a thickness and is isoporous throughout its thickness. A method of making an article is also provided, which does not require a solvent exchange process. The method includes depositing a composition on a porous substrate, thereby forming a fdm, and removing at least a portion of the solvent from the film, thereby forming an isoporous membrane having numerous pores. The composition contains a solvent and solids including a triblock copolymer or a pentablock copolymer. The article advantageously can be hydrophilic and provides sharp molecular weight cut-offs and high flux.Type: ApplicationFiled: December 8, 2020Publication date: February 29, 2024Inventors: Clinton P. Waller, Jr., Michelle M. Mok, Lucas D. McIntosh, Timothy M. Gillard, Carl A. Laskowski, Hyacinth L. Lechuga
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Patent number: 11834544Abstract: Described herein are cationic polymers having a plurality of quaternary amino groups, methods of making such polymers, and uses of such polymers as ion exchange membranes in electrochemical devices.Type: GrantFiled: March 11, 2019Date of Patent: December 5, 2023Assignees: 3M Innovative Properties Company, The Penn State Research FoundationInventors: Michael A. Yandrasits, Carl A. Laskowski, Timothy M. Gillard, Michael Hickner, Liang Zhu
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Publication number: 20230357500Abstract: Phosphate-containing copolymers, medical compositions containing the phosphate-containing copolymers, and methods of suppressing microbial virulence are provided. By suppressing virulence, administration and/or application of the medical compositions can be used to prevent, mitigate, or treat a microbial infection. The phosphate-containing copolymers are prepared by phosphorylating either a random copolymer or a random copolymeric block that contains monomeric units of propylene oxide and glycidol.Type: ApplicationFiled: June 14, 2021Publication date: November 9, 2023Inventors: Carl A. Laskowski, Timothy M. Gillard, Ranjani V. Parthasarathy, Hannah C. Cohen, Max A. Kruziki
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Patent number: 11702486Abstract: Described herein are cationic polymers having a plurality of quaternary amino groups, methods of making such polymers, and uses of such polymers as ion exchange membranes in electrochemical devices.Type: GrantFiled: March 11, 2019Date of Patent: July 18, 2023Assignees: 3M Innovative Properties Company, Alliance for Sustainable Energy, LLCInventors: Carl A. Laskowski, Michael A. Yandrasits, Timothy M. Gillard, Zbyslaw R. Owczarczyk, Marina M. Kaplun
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Patent number: 11466115Abstract: A porous membrane includes a triblock copolymer of the formula ABC. B is a hydrogenated vinyl aromatic block present in a range from 30 to 90 weight percent, based on the total weight of the copolymer and has a Tg of ?110° C. C is a rubbery block present in a range from 10 to 70 weight percent, based on the total weight of the copolymer and has a Tg?25° C. A is substantially incompatible with both the B and C blocks and is derived from ring-opening polymerization. B+C is present in a range from 70 to 95 weight percent, based on the total weight of the copolymer.Type: GrantFiled: May 29, 2019Date of Patent: October 11, 2022Assignee: 3M Innovative Properties CompanyInventors: Michelle M. Mok, Lucas D. McIntosh, Carl A. Laskowski, Timothy M Gillard
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Publication number: 20220088546Abstract: A porous membrane, The porous membrane includes a triblock copolymer of the formula ABC, the porous membrane comprising a plurality of pores; wherein the A block has a Tg of 90 degrees Celsius or greater and is present in an amount ranging from 30% to 80% by weight, inclusive, of the total block copolymer; wherein the B block has a Tg of 25 degrees Celsius or less and is present in an amount ranging from 10% to 40% by weight, inclusive, of the total block copolymer and wherein the C block is a water miscible hydrogen-bonding block immiscible with each of the A block and the B block; wherein the porous membrane comprising a first major surface and an opposed second major surface, wherein the first major surface is a nanostructured surface.Type: ApplicationFiled: March 24, 2020Publication date: March 24, 2022Inventors: Michelle M. Mok, Timothy M. Gillard, Carl A. Laskowski, Lucas D. McIntosh, Hyacinth L. Lechuga
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Patent number: 11254777Abstract: Described herein are nitrogen-containing multi-block copolymers, as well as methods for making such multi-block copolymers, and articles comprising such multi-block copolymers. The nitrogen-containing multi-block copolymers contains at least one A block comprising polyisoprene; and at least one B block comprising amino-functionalized polybutadiene, the amino-functionalized polybutadiene comprising nitrogen-containing pendant groups.Type: GrantFiled: March 11, 2019Date of Patent: February 22, 2022Assignee: 3M Innovative Properties CompanyInventors: Timothy M. Gillard, Carl A. Laskowski, Michael A. Yandrasits
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Patent number: 11167251Abstract: The present disclosure provides a porous membrane made of pentablock copolymer. The porous membrane includes an ABCBA block copolymer and has a number of pores. The A block is immiscible with each of the B block and the C block, the B block has a glass transition temperature (Tg) of 90 degrees Celsius or greater, and the C block has a Tg of 25 degrees Celsius or less. The A block comprises a poly(alkylene oxide), a substituted epoxide, a polylactam, or a substituted carbonate; B block comprises a vinyl aromatic monomer or a polyalkylmethacrylate and C block comprises a polyacrylate, a polysiloxane or a polyisoprene. A method of making a porous membrane is also provided. The method includes forming a film or a hollow fiber from a solution including a solvent and solids containing an ABCBA block copolymer. The method further includes removing at least a portion of the solvent from the film or the hollow fiber and contacting the film or the hollow fiber with a nonsolvent.Type: GrantFiled: November 14, 2017Date of Patent: November 9, 2021Assignee: 3M Innovative Properties CompanyInventors: Michelle M. Mok, Carl A. Laskowski, Lucas D. McIntosh, Hyacinth L. Lechuga, Timothy M. Gillard, Clinton P. Waller, Jr.
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Publication number: 20210205765Abstract: An isoporous membrane includes a multiblock copolymer film. The multiblock copolymer is crosslinked, and the film has a toughness of at least 50 kJ/m3 as a free-standing film when wet, as measured by integrating the area under a stress-strain curve for the film. Methods of forming isoporous membranes are also included.Type: ApplicationFiled: July 3, 2019Publication date: July 8, 2021Inventors: Lucas D. McIntosh, Michelle M. Mok, John J. Schmidt, Carl A. Laskowski, Timothy M. Gillard
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Publication number: 20210079131Abstract: Described herein are cationic polymers having a plurality of quaternary amino groups, methods of making such polymers, and uses of such polymers as ion exchange membranes in electrochemical devices.Type: ApplicationFiled: March 11, 2019Publication date: March 18, 2021Applicants: 3M Innovative Properties Company, Alliance for Sustainable Energy, LLCInventors: Carl A. LASKOWSKI, Michael A. YANDRASITS, Timothy M. GILLARD, Zbyslaw R. OWCZARCZYK, Marina M. KAPLUN
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Publication number: 20210079149Abstract: A porous membrane includes a triblock copolymer of the formula ABC. B is a hydrogenated vinyl aromatic block present in a range from 30 to 90 weight percent, based on the total weight of the copolymer and has a Tg of ?110° C. C is a rubbery block present in a range from 10 to 70 weight percent, based on the total weight of the copolymer and has a Tg?25° C. A is substantially incompatible with both the B and C blocks and is derived from ring-opening polymerization. B+C is present in a range from 70 to 95 weight percent, based on the total weight of the copolymer.Type: ApplicationFiled: May 29, 2019Publication date: March 18, 2021Inventors: Michelle M. MOK, Lucas D. MCINTOSH, Carl A. LASKOWSKI, Timothy M GILLARD
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Publication number: 20210032378Abstract: Described herein are cationic polymers having a plurality of quaternary amino groups, methods of making such polymers, and uses of such polymers as ion exchange membranes in electrochemical devices.Type: ApplicationFiled: March 11, 2019Publication date: February 4, 2021Inventors: Michael A. Yandrasits, Carl A. Laskowski, Timothy M. Gillard, Michael Hickner, Liang Zhu
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Patent number: 10889692Abstract: Described is a triblock copolymer of the formula ABC wherein B is a hydrogenated vinyl aromatic block having a Tg of ?110° C. and comprising 30-90 wt. % of the copolymer; C is a rubbery block having a Tg?25° C. and comprising 10-70 wt. % of the copolymer; and A is an block derived from ring-opening polymerization, substantially incompatible with both B and C blocks.Type: GrantFiled: February 13, 2018Date of Patent: January 12, 2021Assignee: 3M Innovative Properties CompanyInventors: Carl A. Laskowski, Timothy M. Gillard, Michelle M. Mok, Lucas D. McIntosh
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Publication number: 20210002407Abstract: Described herein are nitrogen-containing multi-block copolymers, as well as methods for making such multi-block copolymers, and articles comprising such multi-block copolymers. The nitrogen-containing multi-block copolymers contains at least one A block comprising polyisoprene; and at least one B block comprising amino-functionalized polybutadiene, the amino-functionalized polybutadiene comprising nitrogen-containing pendant groups.Type: ApplicationFiled: March 11, 2019Publication date: January 7, 2021Inventors: Timothy M. Gillard, Carl A. Laskowski, Michael A. Yandrasits
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Patent number: 10781279Abstract: Novel pentablock polymers of the formula ABCBA are provided wherein C is a glassy aromatic block having a Tg of >70° C.; B is a rubber block having a Tg<25° C.; and A is a block incompatible with the B and C blocks and derived from ring-opening polymerization of cyclic monomers.Type: GrantFiled: November 17, 2017Date of Patent: September 22, 2020Assignee: 3M Innovative Properties CompanyInventors: Carl A. Laskowski, Timothy M. Gillard, Michelle M. Mok, Lucas D. McIntosh
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Publication number: 20200047135Abstract: The present disclosure provides a porous membrane made of pentablock copolymer. The porous membrane includes an ABCBA block copolymer and has a number of pores. The A block is immiscible with each of the B block and the C block, the B block has a glass transition temperature (Tg) of 90 degrees Celsius or greater, and the C block has a Tg of 25 degrees Celsius or less. The A block comprises a poly(alkylene oxide), a substituted epoxide, a polylactam, or a substituted carbonate; B block comprises a vinyl aromatic monomer or a polyalkylmethacrylate and C block comprises a polyacrylate, a polysiloxane or a polyisoprene. A method of making a porous membrane is also provided. The method includes forming a film or a hollow fiber from a solution including a solvent and solids containing an ABCBA block copolymer. The method further includes removing at least a portion of the solvent from the film or the hollow fiber and contacting the film or the hollow fiber with a nonsolvent.Type: ApplicationFiled: November 14, 2017Publication date: February 13, 2020Inventors: Michelle M. Mok, Carl A. Laskowski, Lucas D. McIntosh, Hyacinth L. Lechuga, Timothy M. Gillard, Clinton P. Waller, JR.
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Publication number: 20190359778Abstract: Described is a triblock copolymer of the formula ABC wherein B is a hydrogenated vinyl aromatic block having a Tg of ?110° C. and comprising 30-90 wt. % of the copolymer; C is a rubbery block having a Tg?25° C. and comprising 10-70 wt. % of the copolymer; and A is an block derived from ring-opening polymerization, substantially incompatible with both B and C blocks.Type: ApplicationFiled: February 13, 2018Publication date: November 28, 2019Inventors: Carl A. Laskowski, Timothy M. Gillard, Michelle M. Mok, Lucas D. McIntosh
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Publication number: 20190322788Abstract: Novel pentablock polymers of the formula ABCBA are provided wherein C is a glassy aromatic block having a Tg of >70° C.; B is a rubber block having a Tg<25° C.; and A is a block incompatible with the B and C blocks and derived from ring-opening polymerization of cyclic monomers.Type: ApplicationFiled: November 17, 2017Publication date: October 24, 2019Inventors: Carl A. Laskowski, Timothy M. Gillard, Michelle M. Mok, Lucas D. McIntosh