Patents by Inventor James Lupton Hedrick
James Lupton Hedrick 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: 20170145255Abstract: Methods of forming and using a polymer dispersion are described herein. The polymer dispersion includes a plurality of polythioaminal microparticles in a fluid medium that does not dissolve the plurality of polythioaminal microparticles. The fluid medium may be aqueous, for example water. The polymer dispersion may be applied to a substrate, and the fluid medium removed, to form an article substantially made of a polymerized polythioaminal mass. The dispersion, and any article made from the dispersion, may include pigments and active ingredients, such as biocides.Type: ApplicationFiled: July 12, 2016Publication date: May 25, 2017Inventors: Dylan J. BODAY, Jeannette M. GARCIA, James Lupton HEDRICK, Rudy J. WOJTECKI
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Patent number: 9637661Abstract: Methods of forming and using a polymer dispersion are described herein. The polymer dispersion includes a plurality of polythioaminal microparticles in a fluid medium that does not dissolve the plurality of polythioaminal microparticles. The fluid medium may be aqueous, for example water. The polymer dispersion may be applied to a substrate, and the fluid medium removed, to form an article substantially made of a polymerized polythioaminal mass. The dispersion, and any article made from the dispersion, may include pigments and active ingredients, such as biocides.Type: GrantFiled: July 12, 2016Date of Patent: May 2, 2017Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Dylan J. Boday, Jeannette M. Garcia, James Lupton Hedrick, Rudy J. Wojtecki
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Patent number: 9631119Abstract: Methods of forming and using a polymer dispersion are described herein. The polymer dispersion includes a plurality of polythioaminal microparticles in a fluid medium that does not dissolve the plurality of polythioaminal microparticles. The fluid medium may be aqueous, for example water. The polymer dispersion may be applied to a substrate, and the fluid medium removed, to form an article substantially made of a polymerized polythioaminal mass. The dispersion, and any article made from the dispersion, may include pigments and active ingredients, such as biocides.Type: GrantFiled: November 25, 2015Date of Patent: April 25, 2017Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Dylan J. Boday, Jeannette M. Garcia, James Lupton Hedrick, Rudy J. Wojtecki
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Patent number: 9574051Abstract: A nanoparticle which includes a multi-armed core and surface decoration which is attached to the core is prepared. A multi-armed core is provided by any of a number of possible routes, exemplary preferred routes being living anionic polymerization that is initiated by a reactive, functionalized anionic initiator and ?-caprolactone polymerization of a bis-MPA dendrimer. The multi-armed core is preferably functionalized on some or all arms. A coupling reaction is then employed to bond surface decoration to one or more arms of the multi-armed core. The surface decoration is a small molecule or oligomer with a degree of polymerization less than 50, a preferred decoration being a PEG oligomer with degree of polymerization between 2 and 24. The nanoparticles (particle size ?10 nm) are employed as sacrificial templating porogens to form porous dielectrics. The porogens are mixed with matrix precursors (e.g., methyl silsesquioxane resin), the matrix vitrifies, and the porogens are removed via burnout.Type: GrantFiled: April 29, 2010Date of Patent: February 21, 2017Assignee: International Business Machines CorporationInventors: James Lupton Hedrick, Victor Yee-Way Lee, Teddie Peregrino Magbitang, Robert Dennis Miller
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Patent number: 9255182Abstract: A composition of matter for a recording medium in atomic force data storage devices. The composition includes polyimide oligomers having covalently bonded monomers forming a backbone, the oligomer thermally stable to at least 400° C.; one or more covalent bonding cross-linking moieties incorporated into the polyimide oligomer; and one or more hydrogen bonding cross-linking moieties incorporated into the polyimide oligomer. The covalent and hydrogen bonding cross-linking of the polyimide oligomers may be tuned to match thermal and force parameters required in read-write-erase cycles.Type: GrantFiled: March 27, 2008Date of Patent: February 9, 2016Assignee: International Business Machines CorporationInventors: Urs T. Duerig, Jane Elizabeth Frommer, Bernd Walter Gotsmann, Erik Christopher Hagberg, James Lupton Hedrick, Armin W. Knoll, Teddie Peregrino Magbitang, Robert Dennis Miller, Russell Clayton Pratt, Charles Gordon Wade
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Publication number: 20160024253Abstract: Polyhexahydrotriazine (PHT) and polyhemiaminal (PHA) materials chemically modified to include thermoplastic polymer bridging groups, and methods of making such materials, are disclosed. The materials are formed by a process that includes heating a mixture comprising i) a solvent, ii) paraformaldehyde, iii) a diamine monomer comprising two primary aromatic amine groups, and iv) a polymer diamine at a temperature of about 20° C. to less than 150° C. This heating step forms a stable PHA in solution, which can be isolated. The PHA includes covalently bonded thermoplastic polymer groups. The PHA is then heated at a temperature of 150° C. to about 280° C., thereby converting the PHA material to a PHT material that includes covalently bonded thermoplastic polymer groups.Type: ApplicationFiled: July 24, 2014Publication date: January 28, 2016Inventors: Dylan J. BODAY, Jeannette M. GARCIA, James Lupton HEDRICK, Rudy J. WOJTECKI
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Patent number: 8921426Abstract: A cationic bis-urea compound is disclosed of formula (1): wherein: each m is independently an integer of 0 to 4, each k is independently 0 or 1, each Z? is a monovalent radical independently selected from the group consisting of hydroxyl (*—OH), carboxyl (*—COOH), cyano (*—CN), nitro (*—NO2), sulfonate (*—SO3?), trifluoromethyl (*—CF3), halides, amine groups, ketone groups, alkyl groups comprising 1 to 6 carbons, alkoxy groups comprising 1 to 6 carbons, thioether groups comprising 1 to 6 carbons, and combinations thereof, each L? is independently a divalent alkylene group comprising 1 to 6 carbons, wherein a *-[-L?-]k- is a single bond when k is 0, each Y? is independently a monovalent non-polymeric radical comprising a positive charged amine, and each X? is independently a negative charged counterion.Type: GrantFiled: April 18, 2012Date of Patent: December 30, 2014Assignees: International Business Machines Corporation, Agency For Science, Technology And ResearchInventors: Daniel Joseph Coady, Amanda Catherine Engler, Kazuki Fukushima, James Lupton Hedrick, Shaoqiong Liu, Hareem Tariq Maune, Alshakim Nelson, Jed Walter Pitera, Yi Yan Yang
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Patent number: 8834861Abstract: A cyclic carbonate monomer has the formula (2): wherein i) t and t? are integers independently having a value from 0 to 6 wherein t? and t cannot both be zero, ii) each Q1 is a monovalent radical independently selected from the group consisting of hydrogen, halides, alkyl groups comprising 1 to 30 carbons, and aryl groups comprising 6 to 30 carbon atoms, iii) L? is a divalent linking group comprising one or more carbons, and iv) S? is a steroidal group.Type: GrantFiled: August 23, 2011Date of Patent: September 16, 2014Assignees: International Business Machines Corporation, Agency For Science, Technology And ResearchInventors: James Lupton Hedrick, Ashlynn Lingzhi Lee, Shrinivas Venkataraman, Yi Yan Yang
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Patent number: 8792318Abstract: An approach is presented for designing a polymeric layer for nanometer scale thermo-mechanical storage devices. Cross-linked polyimide oligomers are used as the recording layers in atomic force data storage device, giving significantly improved performance when compared to previously reported cross-linked and linear polymers. The cross-linking of the polyimide oligomers may be tuned to match thermal and force parameters required in read-write-erase cycles. Additionally, the cross-linked polyimide oligomers are suitable for use in nano-scale imaging.Type: GrantFiled: January 9, 2012Date of Patent: July 29, 2014Assignee: International Business Machines CorporationInventors: Urs T. Duerig, Jane Elizabeth Frommer, Bernd Walter Gotsmann, Erik Christopher Hagberg, James Lupton Hedrick, Armin W. Knoll, Victor Yee-Way Lee, Teddie Peregrino Magbitang, Robert Dennis Miller, Russell Clayton Pratt, Charles Gordon Wade, Johannes Windeln
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Patent number: 8784966Abstract: A method of forming a material. A self-assembling block copolymer that includes a first block species and a second block species respectively characterized by a volume fraction of F1 and F2 with respect to the self-assembling block copolymer is provided. At least one crosslinkable polymer that is miscible with the second block species is provided. The self-assembling block copolymer and the at least one crosslinkable polymer are combined to form a mixture. The mixture having a volume fraction, F3, of the crosslinkable polymer, a volume fraction, F1A, of the first block species, and a volume fraction, F2A, of the second block species is formed. A material having a predefined morphology where the sum of F2A and F3 were preselected is formed.Type: GrantFiled: December 5, 2007Date of Patent: July 22, 2014Assignee: International Business Machines CorporationInventors: Jennifer Nam Cha, James Lupton Hedrick, Ho-Cheol Kim, Robert Dennis Miller, Willi Volksen
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Patent number: 8779166Abstract: A one pot method of preparing cyclic carbonyl compounds comprising an active pendant pentafluorophenyl ester group is disclosed. The cyclic carbonyl compounds can be polymerized by ring opening methods to form ROP polymers comprising repeat units comprising a side chain pentafluorophenyl ester group. Using a suitable nucleophile, the pendant pentafluorophenyl ester group can be selectively transformed into a variety of other functional groups before or after the ring opening polymerization.Type: GrantFiled: March 8, 2012Date of Patent: July 15, 2014Assignee: International Business Machines CorporationInventors: James Lupton Hedrick, Alshakim Nelson, Daniel Paul Sanders
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Patent number: 8765098Abstract: A composition of matter comprising an amphiphilic star polymer, the star polymer comprising a crosslinked microgel core and 6 or more independent polymer arms covalently linked to the core, the 6 or more arms each comprising a hydrophilic polymer chain segment and a hydrophobic polymer chain segment; wherein each individual metal selected from the group consisting of beryllium, magnesium, calcium, strontium, barium, radium, aluminum, gallium, indium, thallium, germanium, tin, lead, arsenic, antimony, bismuth, tellurium, polonium, and metals of Groups 3 to 12 of the Periodic Table has a concentration in the star polymer of greater than or equal to 0 parts per million and less than or equal to 100 parts per million.Type: GrantFiled: March 30, 2010Date of Patent: July 1, 2014Assignees: International Business Machines Corporation, The Board of Trustees of The Leland Stanford Junior UniversityInventors: Eric Andrew Appel, James Lupton Hedrick, Victor Yee-Way Lee, Robert Dennis Miller, Joseph Sly
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Patent number: 8709466Abstract: A cationic star polymer is disclosed of the general formula (1): I?P?]w???(1), wherein w? is a positive number greater than or equal to 3, I? is a dendritic polyester core covalently linked to w? independent peripheral linear cationic polymer chains P?. Each of the chains P? comprises a cationic repeat unit comprising i) a backbone functional group selected from the group consisting of aliphatic carbonates, aliphatic esters, aliphatic carbamates, aliphatic ureas, aliphatic thiocarbamates, aliphatic dithiocarbonates, and combinations thereof, and ii) a side chain comprising a quaternary amine group. The quaternary amine group comprises a divalent methylene group directly covalently linked to i) a positive charged nitrogen and ii) an aromatic ring.Type: GrantFiled: December 21, 2011Date of Patent: April 29, 2014Assignees: International Business Machines Corporation, Agency For Science, Technology And ResearchInventors: Daniel Joseph Coady, Amanda Catherine Engler, Kazuki Fukushima, James Lupton Hedrick, Jeremy Pang Kern Tan, Yi Yan Yang
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Patent number: 8642086Abstract: A composition of matter comprises a cationic polymer comprising a polycarbonate chain fragment, the polycarbonate chain fragment comprising a repeat unit comprising a side chain moiety containing a quaternary amine group; and a non-charged polymer comprising a polyester chain segment and a poly(alkylene oxide) chain segment; wherein i) the cationic polymer and the non-charged polymer are amphiphilic and biocompatible, ii) the cationic polymer and the non-charged polymer form a mixed complex by non-covalent interactions in water, and iii) the mixed complex is a more effective antimicrobial agent against at least a Gram-negative microbe compared to the cationic polymer and the non-charged polymer alone when tested using otherwise identical conditions.Type: GrantFiled: March 31, 2011Date of Patent: February 4, 2014Assignees: International Business Machines Corporation, Agency for Science, Technology and ResearchInventors: Daniel Joseph Coady, Kazuki Fukushima, James Lupton Hedrick, Yi Yan Yang
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Patent number: 8642787Abstract: A composition comprises a surface modified nanoparticle comprising a core comprising a material selected from the group consisting of organic materials, organometallic materials, inorganic materials, metals, metal oxides, and combinations thereof; and a surface branch covalently linked to the core having the general formula (3):Type: GrantFiled: June 5, 2012Date of Patent: February 4, 2014Assignee: International Business Machines CorporationInventors: Kazuki Fukushima, James Lupton Hedrick, Alshakim Nelson, Daniel Paul Sanders
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Patent number: 8599673Abstract: A composition of matter for the recording medium of nanometer scale thermo-mechanical information storage devices and a nanometer scale thermo-mechanical information storage device. The composition includes: one or more polyaryletherketone polymers, each of the one or more polyaryletherketone polymers having two terminal ends, each terminal end having two or more phenylethynyl moieties. The one or more polyaryletherketone polymers are thermally cured and the resulting cross-linked polyaryletherketone resin used as the recording layers in atomic force data storage devices.Type: GrantFiled: January 3, 2012Date of Patent: December 3, 2013Assignee: International Business Machines CorporationInventors: Richard Anthony DiPietro, Urs T. Duerig, Jane Elizabeth Frommer, Bernd Walter Gotsmann, Erik Christopher Hagberg, James Lupton Hedrick, Armin W. Knoll, Teddie Peregrino Magbitang, Robert Dennis Miller, Russell Clayton Pratt, Charles Gordon Wade
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Publication number: 20130281515Abstract: A cationic bis-urea compound is disclosed of formula (1): wherein: each m is independently an integer of 0 to 4, each k is independently 0 or 1, each Z? is a monovalent radical independently selected from the group consisting of hydroxyl (*—OH), carboxyl (*—COOH), cyano (*—CN), nitro (*—NO2), sulfonate (*—SO3?), trifluoromethyl (*—CF3), halides, amine groups, ketone groups, alkyl groups comprising 1 to 6 carbons, alkoxy groups comprising 1 to 6 carbons, thioether groups comprising 1 to 6 carbons, and combinations thereof, each L? is independently a divalent alkylene group comprising 1 to 6 carbons, wherein a *-[-L?-]k- is a single bond when k is 0, each Y? is independently a monovalent non-polymeric radical comprising a positive charged amine, and each X? is independently a negative charged counterion.Type: ApplicationFiled: April 18, 2012Publication date: October 24, 2013Applicants: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH, INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Daniel Joseph Coady, Amanda Catherine Engler, Kazuki Fukushima, James Lupton Hedrick, Shaoqiong Liu, Hareem Tariq Maune, Alshakim Nelson, Jed Walter Pitera, Yi Yan Yang
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Patent number: 8541477Abstract: A method comprises forming a reaction mixture comprising a terephthalate polyester, a glycol comprising 2 to 5 carbons, and an amidine organocatalyst; and heating the reaction mixture at a temperature of about 120° C. or more to depolymerize the terephthalate polyester, thereby forming a terephthalate reaction product comprising a monomeric dihydroxy terephthalate diester; wherein the terephthalate reaction product contains terephthalate oligomers in an amount less than the amount of terephthalate oligomers that would result from i) substituting the amidine organocatalyst with an equimolar amount of a guanidine catalyst and ii) depolymerizing the terephthalate polyester under otherwise identical reaction conditions.Type: GrantFiled: March 4, 2011Date of Patent: September 24, 2013Assignees: International Business Machines Corporation, King Abdulaziz City for Science and TechnologyInventors: Abdullah M Alabdulrahman, Hamid A Almegren, Fares D Alsewailem, Phillip Joe Brock, Daniel Joseph Coady, Kazuki Fukushima, James Lupton Hedrick, Hans Werner Horn, Julia Elizabeth Rice
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Patent number: 8507640Abstract: A salt catalyst comprises an ionic complex of i) a nitrogen base comprising one or more guanidine and/or amidine functional groups, and ii) an oxoacid comprising one or more active acid groups, the active acid groups independently comprising a carbonyl group (C?O), sulfoxide group (S?O), and/or a phosphonyl group (P?O) bonded to one or more active hydroxy groups; wherein a ratio of moles of the active hydroxy groups to moles of the guanidine and/or amidine functional groups is greater than 0 and less than 2.0. The salt catalysts are capable of catalyzing ring opening polymerization of cyclic carbonyl compounds.Type: GrantFiled: August 19, 2010Date of Patent: August 13, 2013Assignee: International Business Machines CorporationInventors: Daniel Joseph Coady, Kazuki Fukushima, James Lupton Hedrick, Hans Werner Horn, Julia Elizabeth Rice
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Patent number: 8496946Abstract: A covalently crosslinked hydrogel comprises a) three or more divalent poly(alkylene oxide) chains P? covalently linked at respective first end units to a branched first core group C?, b) three or more divalent poly(alkylene oxide) chains P? covalently linked at respective first end units to a branched second core group C?, the chains P? comprising respective second end units which are covalently linked to between 0% and 100% of respective second end units of chains P? by divalent linking groups L?, and c) at least one pendant cationic block copolymer chain A?-B?. A?-B? comprises i) a divalent block A? comprising a poly(alkylene oxide) backbone chain having an end unit covalently linked to a second end unit of one of the chains P? by a divalent linking group L?, and ii) a monovalent block B? comprising a first repeat unit, the first repeat unit comprising a backbone carbonate group and a cationic side chain group.Type: GrantFiled: August 19, 2011Date of Patent: July 30, 2013Assignees: International Business Machines Corporation, Agency for Science, Technology and ResearchInventors: Daniel Joseph Coady, Amanda Catherine Engler, James Lupton Hedrick, Shaoqiong Liu, Yi Yan Yang, Chuan Yang