Patents by Inventor Jimmy W. Mays
Jimmy W. Mays 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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Patent number: 11754374Abstract: Composite materials capable of absorbing and dissipating high energy forces such as ballistic impacts and explosive blasts. Composites of elastomers and reinforcing nanoparticle materials are configured to absorb and dissipates high energy forces. Composites can be configured as nonwoven webs, and can be layered. Methods of making a ballistic resistant composite material capable of absorbing and dissipating high energy forces.Type: GrantFiled: April 1, 2015Date of Patent: September 12, 2023Assignee: University of Tennessee Research FoundationInventors: Gajanan Bhat, Josh Fogle, Jimmy W. Mays, Vikram Srivastava
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Patent number: 11325991Abstract: Thermoplastic elastomer compositions comprising acrylic multigraft copolymers are described. The multigraft copolymers comprise a rubbery polyacrylate backbone and a plurality of randomly spaced glassy polyacrylate side chains. The multigraft copolymers can be prepared using a facile grafting through method that can provide copolymers with enhanced purity. The acrylic multigraft copolymers exhibit microphase separated morphologies and “superelastomeric” properties, including an elongation at break, stress at break, and/or strain recovery behavior that exceeds that of conventional triblock copolymer polyacrylate thermoplastic elastomers.Type: GrantFiled: April 25, 2018Date of Patent: May 10, 2022Assignee: University of Tennessee Research FoundationInventors: Jimmy W. Mays, Wei Lu, Nam-Goo Kang
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Publication number: 20210108018Abstract: Thermoplastic elastomer compositions comprising acrylic multigraft copolymers are described. The multigraft copolymers comprise a rubbery polyacrylate backbone and a plurality of randomly spaced glassy polyacrylate side chains. The multigraft copolymers can be prepared using a facile grafting through method that can provide copolymers with enhanced purity. The acrylic multigraft copolymers exhibit microphase separated morphologies and “superelastomeric” properties, including an elongation at break, strain at break, and/or strain recovery behavior that exceeds that of conventional triblock copolymer polyacrylate thermoplastic elastomers.Type: ApplicationFiled: April 25, 2018Publication date: April 15, 2021Inventors: Jimmy W. Mays, Wei Lu, Nam-Goo Kang
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Publication number: 20190055337Abstract: Methods of preparing macromonomers, e.g., single- or double-tailed macromonomers, using radical polymerization of a first monomer in solution or in an emulsion are described. Methods of using the macromonomers in the preparation of multigraft copolymers are also described. For instance, the macromonomer prepared by radical polymerization can be used in an emulsion copolymerization with a second monomer to form a random multigraft copolymer. The random multigraft co-polymers can be superelastomers.Type: ApplicationFiled: February 2, 2017Publication date: February 21, 2019Inventors: Jimmy W. Mays, Nam-Goo Kang, Weiyu Wang, Huiqun Wang
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Patent number: 10202478Abstract: Multigraft copolymers having various structures, e.g., comb and centipede structures, can be prepared from emulsion copolymerization of monomers and macromonomers. The emulsion copolymerization can be initiated by a thermally activated radical initiator or a redox initiation system. The multigraft copolymers can have high molecular weight and/or a large number of branch points. Elastomer or adhesive compositions of the copolymers can be prepared. Also described are poly(n-alkyl acrylate-graft-styrene) multigraft copolymers.Type: GrantFiled: June 19, 2015Date of Patent: February 12, 2019Assignee: University of Tennessee Research FoundationInventors: Jimmy W. Mays, Nam-Goo Kang, Qiuyu Zhang, Wenwen Wang
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Patent number: 9708434Abstract: Thermoplastic elastomer compositions are described comprising multigraft copolymers. The multigraft copolymers can comprise a rubbery polymeric backbone and a plurality of glassy polymeric side chains, each attached at one of a plurality of branch points randomly spaced along the backbone. The copolymer materials have high tensile strength, high strain at break, and low residual strain after elongation. The compositions can be used as adhesives and in a wide variety of high tech, medical, and commodity applications.Type: GrantFiled: September 30, 2011Date of Patent: July 18, 2017Assignees: University of Tennessee Research Foundation, University of Massachusetts, Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Jimmy W. Mays, Samuel P. Gido, Roland Weidisch, Liane Weidisch, Christina Weidisch
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Publication number: 20170183440Abstract: Multigraft copolymers having various structures, e.g., comb and centipede structures, can be prepared from emulsion copolymerization of monomers and macromonomers. The emulsion copolymerization can be initiated by a thermally activated radical initiator or a redox initiation system. The multigraft copolymers can have high molecular weight and/or a large number of branch points. Elastomer or adhesive compositions of the copolymers can be prepared. Also described are poly(n-alkyl acrylate-graft-styrene) multigraft copolymers.Type: ApplicationFiled: June 19, 2015Publication date: June 29, 2017Inventors: Jimmy W. MAYS, Nam-Goo KANG, Qiuyu ZHANG, Wenwen WANG
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Publication number: 20160200882Abstract: Composite materials capable of absorbing and dissipating high energy forces such as ballistic impacts and explosive blasts. Composites of elastomers and reinforcing nanoparticle materials are configured to absorb and dissipates high energy forces. Composites can be configured as nonwoven webs, and can be layered. Methods of making a ballistic resistant composite material capable of absorbing and dissipating high energy forces.Type: ApplicationFiled: April 1, 2015Publication date: July 14, 2016Inventors: Gajanan Bhat, Josh Fogle, Jimmy W. Mays, Vikram Srivastava
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Publication number: 20140161858Abstract: Thermoplastic elastomer compositions are described comprising multigraft copolymers. The multigraft copolymers can comprise a rubbery polymeric backbone and a plurality of glassy polymeric side chains, each attached at one of a plurality of branch points randomly spaced along the backbone. The copolymer materials have high tensile strength, high strain at break, and low residual strain after elongation. The compositions can be used as adhesives and in a wide variety of high tech, medical, and commodity applications.Type: ApplicationFiled: September 30, 2011Publication date: June 12, 2014Applicant: University of Tennessee Research FoundationInventors: Jimmy W Mays, Liane Weidisch, Samuel P Gido, Christina Weidisch
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Patent number: 8737635Abstract: The disclosed methods and devices incorporate a novel expandable bubble portion which provides superior fidelity to a listener while minimizing listener fatigue. The expandable bubble portion may be expanded through the transmission of low frequency audio signals or the pumping of a gas to the expandable bubble portion. In addition, embodiments of the acoustic device may be adapted to consistently and comfortably fit to any ear, providing for a variable, impedance matching acoustic seal to both the tympanic membrane and the audio transducer, respectively, while isolating the sound-vibration chamber within the driven bubble. This reduces the effect of gross audio transducer vibration excursions on the tympanic membrane and transmits the audio content in a manner which allows the ear to utilize its full inherent capabilities.Type: GrantFiled: December 21, 2012Date of Patent: May 27, 2014Assignee: Asius Technologies, LLCInventors: Stephen D. Ambrose, Samuel P. Gido, Jimmy W. Mays, Roland Weidisch, Robert B. Schulein
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Publication number: 20130143821Abstract: Described herein are modified hyaluronans or the pharmaceutically-acceptable salt or ester thereof, wherein the modified hyaluronan comprises at least one hydrophobic polypeptide covalently bonded to hyaluronan. The modified hyaluronans can be used as viscosupplements in a number of medical applications. The modified hyaluronans can also be used in several biological and medical applications. Methods for preparing the modified hyaluronans are also provided herein.Type: ApplicationFiled: February 3, 2011Publication date: June 6, 2013Applicants: UNIVERSITY OF TENNESSEE RESEARCH FOUNDATION, UNIVERSITY OF UTAH RESEARCH FOUNDATIONInventors: Jules John Magda, Grant D. mith, Dmitry Bedrov, Jimmy W. Mays
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Patent number: 8340310Abstract: The disclosed methods and devices incorporate a novel expandable bubble portion which provides superior fidelity to a listener while minimizing listener fatigue. The expandable bubble portion may be expanded through the transmission of low frequency audio signals or the pumping of a gas to the expandable bubble portion. In addition, embodiments of the acoustic device may be adapted to consistently and comfortably fit to any ear, providing for a variable, impedance matching acoustic seal to both the tympanic membrane and the audio transducer, respectively, while isolating the sound-vibration chamber within the driven bubble. This reduces the effect of gross audio transducer vibration excursions on the tympanic membrane and transmits the audio content in a manner which allows the ear to utilize its full inherent capabilities.Type: GrantFiled: July 23, 2008Date of Patent: December 25, 2012Assignee: Asius Technologies, LLCInventors: Stephen D. Ambrose, Samuel P. Gido, Jimmy W. Mays, Roland Weidisch, Robert B. Schulein
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Patent number: 8061533Abstract: Materials prepared from polydienes, such as poly(cyclohexadiene), and hydrophilic polymers, such as poly(alkylene oxide), are described. Methods of making the materials and their use in fuel cell membranes, batteries, breathable chemical-biological protective materials, and templates for sol-gel polymerization are also provided. The materials can be crosslinked and sulfonated, and can include copolymers and polymer blends.Type: GrantFiled: January 30, 2009Date of Patent: November 22, 2011Assignees: University of Tennessee Research Foundation, University of Southern Mississippi, University of MassachusettsInventors: Jimmy W. Mays, Suxiang Deng, Kenneth A. Mauritz, Mohammad K. Hassan, Samuel P. Gido
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Publication number: 20090306295Abstract: Materials prepared from polydienes, such as poly(cyclohexadiene), and hydrophilic polymers, such as poly(alkylene oxide), are described. Methods of making the materials and their use in fuel cell membranes, batteries, breathable chemical-biological protective materials, and templates for sol-gel polymerization are also provided. The materials can be crosslinked and sulfonated, and can include copolymers and polymer blends.Type: ApplicationFiled: January 30, 2009Publication date: December 10, 2009Inventors: Jimmy W. Mays, Suxiang Deng, Kenneth A. Mauritz, Mohammad K. Hassan, Samuel P. Gido
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Patent number: 7619036Abstract: Copolymers of fluorinated polydienes and sulfonated polystyrene and their use in fuel cell membranes, batteries, breathable chemical-biological protective materials, and templates for sol-gel polymerization.Type: GrantFiled: March 21, 2005Date of Patent: November 17, 2009Assignee: University of Tennessee Research FoundationInventors: Jimmy W. Mays, Samuel P. Gido, Tianzi Huang, Kunlun Hong
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Publication number: 20090028356Abstract: The disclosed methods and devices incorporate a novel expandable bubble portion which provides superior fidelity to a listener while minimizing listener fatigue. The expandable bubble portion may be expanded through the transmission of low frequency audio signals or the pumping of a gas to the expandable bubble portion. In addition, embodiments of the acoustic device may be adapted to consistently and comfortably fit to any ear, providing for a variable, impedance matching acoustic seal to both the tympanic membrane and the audio transducer, respectively, while isolating the sound-vibration chamber within the driven bubble. This reduces the effect of gross audio transducer vibration excursions on the tympanic membrane and transmits the audio content in a manner which allows the ear to utilize its full inherent capabilities.Type: ApplicationFiled: July 23, 2008Publication date: January 29, 2009Applicant: ASIUS TECHNOLOGIES, LLCInventors: Stephen D. Ambrose, Samuel P. Gido, Jimmy W. Mays, Roland Weidisch, Robert B. Schulein
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Publication number: 20080193818Abstract: Copolymers of fluorinated polydienes and sulfonated polystyrene and their use in fuel cell membranes, batteries, breathable chemical-biological protective materials, and templates for sol-gel polymerization.Type: ApplicationFiled: September 28, 2007Publication date: August 14, 2008Inventor: Jimmy W. Mays
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Publication number: 20080138634Abstract: Stable blend compositions composed of mixtures of polysiloxane(s) and organic polymer(s) are claimed. These polymer blends are white and opaque indicating the presence of phase separation on the micron scale. Such blends can be stored for long periods of time (years) without exhibiting evidence of macroscopic phase separation. These stable blends are achieved without substantial crosslinking as evidenced by the fact that the polymer blend is readily dissolved in a suitable organic solvent for molecular weight characterization. The stable blends of the present invention have particular utility as fouling release coatings for marine applications.Type: ApplicationFiled: July 25, 2007Publication date: June 12, 2008Inventors: Joseph P. Morris, Samuel P. Gido, Jimmy W. Mays
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Patent number: 7259210Abstract: A bone cement formulation stored as a solid component pack having 0.3 to 20 solid component pack weight percent of an elastomer and a polymer bead core having a polyacrylate terminated surface. The second component pack is a liquid component pack including an acrylate monomer. An alternate solid component pack includes 3 to 25 solid component pack weight percent of a polyacrylate and a rubber toughened polymethyl methacrylate. A cement mixing and delivering system according to the present invention includes a tube having an exit nozzle and an aperture. An end plate is adapted to seal against the interior of the tube aperture and the end plate has a plurality of needles protruding therefrom into the tube. A rotatable and slidable divider is received within the tube intermediate between the end plate and the exit nozzle. The divider includes at least two plates.Type: GrantFiled: January 28, 2002Date of Patent: August 21, 2007Assignee: The UAB Research FoundationInventors: Aaron D. Puckett, Jr., Jack Lemons, Lujia Bu, Jimmy W. Mays
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Patent number: 6924341Abstract: Methods and compositions for polymerization in ionic medium liquid at room temperature provide the benefit of allowing polymerization reactions to be carried out cheaply, and relatively quickly. The replacement of VOCs by these environmentally benign solvents has the further advantage of increased safety for chemical workers.Type: GrantFiled: April 1, 2002Date of Patent: August 2, 2005Assignee: The UAB Research FoundationInventors: Jimmy W. Mays, Lujia Bu, Robin D. Rogers, Kunlun Hong, Hongwei Zhang