Patents by Inventor Mu San Zhang
Mu San Zhang 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: 11390705Abstract: Provided herein are methods of making a reactive particulate material by free radically polymerizing a single-cure resin to produce a polymer, the resin comprising: a reactive blocked polyurethane prepolymer, a reactive blocked polyurea prepolymer, a reactive blocked polyurethane-polyurea copolymer, or a combination thereof, wherein said polymerizing is carried out by dispersive polymerization (e.g., an emulsion, suspension or dispersion polymerization process), to form said reactive particulate material. Methods of use of the reactive particulate material and material sets including the same are also provided.Type: GrantFiled: May 9, 2019Date of Patent: July 19, 2022Assignee: Carbon, Inc.Inventors: Justin Poelma, Mu San Zhang, Xinyu Gu, Jason P. Rolland, Joseph M. DeSimone
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Patent number: 11299576Abstract: Provided herein are methods of recycling additively manufactured objects, which may include making a reactive particulate material by recycling preformed articles or recovered coating material. Methods of use of the reactive particulate material and material sets including the same are also provided.Type: GrantFiled: May 9, 2019Date of Patent: April 12, 2022Assignee: Carbon, Inc.Inventors: Justin Poelma, Mu San Zhang, Xinyu Gu, Jason P. Rolland, Joseph M. DeSimone
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Publication number: 20220091504Abstract: Provided herein is a method of forming a three-dimensional object in which the polymerizable liquid includes a mixture of (i) a light polymerizable first component, and (ii) a heat polymerizable second component; the heat polymerizable second component comprising (i) a first blocked reactive constituent that is blocked with a volatile blocking group, and optionally (ii) a curative. Upon heating a formed three-dimensional intermediate sufficiently, the volatile blocking group is cleaved and vaporizes out of the three-dimensional intermediate, to form the three-dimensional object. Also provided is a three-dimensional object produced by the method. Further provided is a polymerizable liquid composition useful for carrying out the method, and prepolymers and monomers useful for the polymerizable liquid composition.Type: ApplicationFiled: December 3, 2021Publication date: March 24, 2022Inventors: Kai Chen, Andrew Gordon Wright, Mu San Zhang
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Patent number: 11226559Abstract: Provided herein is a method of forming a three-dimensional object in which the polymerizable liquid includes a mixture of (i) a light polymerizable first component, and (ii) a heat polymerizable second component; the heat polymerizable second component comprising (i) a first blocked reactive constituent that is blocked with a volatile blocking group, and optionally (ii) a curative. Upon heating a formed three-dimensional intermediate sufficiently, the volatile blocking group is cleaved and vaporizes out of the three-dimensional intermediate, to form the three-dimensional object. Also provided is a three-dimensional object produced by the method. Further provided is a polymerizable liquid composition useful for carrying out the method, and prepolymers and monomers useful for the polymerizable liquid composition.Type: GrantFiled: June 7, 2018Date of Patent: January 18, 2022Assignee: Carbon, Inc.Inventors: Kai Chen, Andrew Gordon Wright, Mu San Zhang
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Publication number: 20210246252Abstract: Provided herein are methods of recycling additively manufactured objects, which may include making a reactive particulate material by recycling preformed articles or recovered coating material. Methods of use of the reactive particulate material and material sets including the same are also provided.Type: ApplicationFiled: May 9, 2019Publication date: August 12, 2021Inventors: Justin POELMA, Mu San ZHANG, Xinyu GU, Jason P. ROLLAND, Joseph M. DeSIMONE
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Publication number: 20210246300Abstract: Provided herein are methods of making a reactive particulate material by free radically polymerizing a single-cure resin to produce a polymer, the resin comprising: a reactive blocked polyurethane prepolymer, a reactive blocked polyurea prepolymer, a reactive blocked polyurethane-polyurea copolymer, or a combination thereof, wherein said polymerizing is carried out by dispersive polymerization (e.g., an emulsion, suspension or dispersion polymerization process), to form said reactive particulate material. Methods of use of the reactive particulate material and material sets including the same are also provided.Type: ApplicationFiled: May 9, 2019Publication date: August 12, 2021Inventors: Justin Poelma, Mu San Zhang, Xinyu Gu, Jason P. Rolland, Joseph M. DeSimone
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Publication number: 20200406550Abstract: Provided herein are methods of recycling additively manufactured objects (e.g., stereolithographically produced objects), the additively manufactured objects comprising linear polyurethane, branched polyurethane, linear polyurea, branched polyurea, a copolymer thereof, or a combination thereof. Compositions comprising the same and methods of use thereof are also provided.Type: ApplicationFiled: February 26, 2019Publication date: December 31, 2020Inventors: Mu San Zhang, Kai Chen, Jason P. Rolland, Justin Poelma
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Patent number: 10743537Abstract: Techniques regarding ionene compositions with antimicrobial functionality are provided. For example, one or more embodiments can comprise a monomer, which can comprise a single ionene unit. The single ionene unit can comprise a cation distributed along a molecular backbone. Also, a hydrophobic functional group can be covalently bonded to the molecular backbone, and the single ionene unit can have antimicrobial functionality.Type: GrantFiled: December 12, 2017Date of Patent: August 18, 2020Assignees: INTERNATIONAL BUSINESS MACHINES CORPORATION, AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCHInventors: Mareva B. Fevre, James L. Hedrick, Nathaniel H. Park, Victoria A. Piunova, Pang Kern Jeremy Tan, Yi Yan Yang, Mu San Zhang
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Patent number: 10687530Abstract: Techniques regarding ionene and/or polyionene compositions with antimicrobial functionality and enhanced hydrophilicity are provided. For example, one or more embodiments can regard a chemical compound that can comprise an ionene unit, which can comprise a cation distributed along a degradable backbone. The degradable backbone can comprise a terephthalamide structure. The ionene unit can have antimicrobial functionality. Further, the chemical compound can comprise a hydrophilic functional group covalently bonded to the ionene unit. Also, the chemical compound can have carbohydrate mimetic functionality.Type: GrantFiled: December 12, 2017Date of Patent: June 23, 2020Assignees: INTERNATIONAL BUSINESS MACHINES CORPORATION, AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCHInventors: Mareva B. Fevre, James L. Hedrick, Nathaniel H. Park, Victoria A. Piunova, Pang Kern Jeremy Tan, Yi Yan Yang, Mu San Zhang
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Publication number: 20200174367Abstract: Provided herein is a method of forming a three-dimensional object in which the polymerizable liquid includes a mixture of (i) a light polymerizable first component, and (ii) a heat polymerizable second component; the heat polymerizable second component comprising (i) a first blocked reactive constituent that is blocked with a volatile blocking group, and optionally (ii) a curative. Upon heating a formed three-dimensional intermediate sufficiently, the volatile blocking group is cleaved and vaporizes out of the three-dimensional intermediate, to form the three-dimensional object. Also provided is a three-dimensional object produced by the method. Further provided is a polymerizable liquid composition useful for carrying out the method, and prepolymers and monomers useful for the polymerizable liquid composition.Type: ApplicationFiled: June 7, 2018Publication date: June 4, 2020Inventors: Kai Chen, Andrew Gordon Wright, Mu San Zhang
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Patent number: 10336897Abstract: Methods, compounds, and compositions described herein generally relate to hemiaminal organogel networks (HDCNs) and methods of forming HDCNs. In some embodiments, a hemiaminal organogel has a plurality of first polymers, each having a first end and a second end, a plurality of second polymers, each having a first end and a second end, and a plurality of trivalent aminal-hemiaminal linkages. The first end of each polymer of the plurality of first polymers may be covalently bonded to a first trivalent aminal-hemiaminal linkage. The second end of each polymer of the plurality of first polymers may be covalently bonded to a second trivalent aminal-hemiaminal linkage. The first end of each polymer of the plurality of second polymers may be covalently bonded to one of the plurality of trivalent aminal-hemiaminal linkages. The second end of each polymer of the plurality of second polymers may be non-covalently bonded.Type: GrantFiled: August 18, 2017Date of Patent: July 2, 2019Assignee: International Business Machines CorporationInventors: Dylan J. Boday, Mareva B. Fevre, Jeannette M. Garcia, James L. Hedrick, Rudy J. Wojtecki, Mu San Zhang
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Publication number: 20190174755Abstract: Techniques regarding ionene and/or polyionene compositions with antimicrobial functionality and enhanced hydrophilicity are provided. For example, one or more embodiments can regard a chemical compound that can comprise an ionene unit, which can comprise a cation distributed along a degradable backbone. The degradable backbone can comprise a terephthalamide structure. The ionene unit can have antimicrobial functionality. Further, the chemical compound can comprise a hydrophilic functional group covalently bonded to the ionene unit. Also, the chemical compound can have carbohydrate mimetic functionality.Type: ApplicationFiled: December 12, 2017Publication date: June 13, 2019Inventors: Mareva B. Fevre, James L. Hedrick, Nathaniel H. Park, Victoria A. Piunova, Pang Kern Jeremy Tan, Yi Yan Yang, Mu San Zhang
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Publication number: 20190174757Abstract: Techniques regarding ionene compositions with antimicrobial functionality are provided. For example, one or more embodiments can comprise a monomer, which can comprise a single ionene unit. The single ionene unit can comprise a cation distributed along a molecular backbone. Also, a hydrophobic functional group can be covalently bonded to the molecular backbone, and the single ionene unit can have antimicrobial functionality.Type: ApplicationFiled: December 12, 2017Publication date: June 13, 2019Inventors: Mareva B. Fevre, James L. Hedrick, Nathaniel H. Park, Victoria A. Piunova, Pang Kern Jeremy Tan, Yi Yan Yang, Mu San Zhang
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Patent number: 10167367Abstract: A block copolymer includes a water-soluble block that is bonded to one or more hydrophobic polycarbonate blocks that include pendant fluoroaryl substituents.Type: GrantFiled: October 24, 2016Date of Patent: January 1, 2019Assignee: International Business Machines CorporationInventors: Dylan J. Boday, Mareva B. Fevre, Jeannette M. Garcia, James L. Hedrick, Nathaniel H. Park, Rudy J. Wojtecki, Mu San Zhang
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Patent number: 10023697Abstract: A number of cationic antimicrobial polymers have been synthesized by a condensation polymerization in bulk. The initial polymer formed has backbone tertiary nitrogens, which are subsequently quaternized using a suitable quaternizing agent (e.g., alkyl halide). The cationic polymers include polyamides, polycarbonates, polypolyureas and polyguanidiniums having a cationic repeat unit comprising the quaternary ammonium nitrogen as a backbone nitrogen. The cationic polymers can be active against Gram-negative, Gram-positive microbes, and/or fungi.Type: GrantFiled: November 25, 2016Date of Patent: July 17, 2018Assignees: International Business Machines Corporation, Agency For Science, Technology And ResearchInventors: Gregory Breyta, Julian M. W. Chan, Daniel J. Coady, Amanda C. Engler, Jeannette M. Garcia, Wei Han, James L. Hedrick, Alshakim Nelson, Robert J. Ono, Yi Yan Yang, Mu San Zhang
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Publication number: 20180112041Abstract: A block copolymer includes a water-soluble block that is bonded to one or more hydrophobic polycarbonate blocks that include pendant fluoroaryl substituents.Type: ApplicationFiled: October 24, 2016Publication date: April 26, 2018Inventors: DYLAN J. BODAY, MAREVA B. FEVRE, JEANNETTE M. GARCIA, JAMES L. HEDRICK, NATHANIEL H. PARK, RUDY J. WOJTECKI, MU SAN ZHANG
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Patent number: 9868870Abstract: A thermo-responsive shear-thinning photo-curable composition comprises water, a linear amphiphilic polyether ABA triblock copolymer comprising at least one pendent ene group (*—CH?CH2) capable of undergoing a thiol-ene reaction, a water-soluble crosslinking agent comprising two or more methylenethiol groups (*—CH2SH), and a photoinitiator. Under non-shear conditions and a triblock copolymer concentration suitable for direct-write printing, the composition is a viscoelastic solid (hydrogel) at a temperature of about 15° C. to about 45° C., and is a free-flowing liquid (sol) between 0° C. and about 10° C. The hydrogel form can be shear-thinned at about 15° C. to about 45° C. to form a sol suitable for a direct-write printer using an extruding print-head. The compositions covalently crosslink when flood-exposed to ultraviolet radiation. The compositions have utility in forming three-dimensional scaffolds for growing living cells.Type: GrantFiled: March 16, 2016Date of Patent: January 16, 2018Assignee: International Business Machines CorporationInventors: Amanda C. Engler, Wei Han, Hareem T. Maune, Alshakim Nelson, Ankit Vora, Rudy J. Wojtecki, Mu San Zhang
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Publication number: 20170342212Abstract: Methods, compounds, and compositions described herein generally relate to hemiaminal organogel networks (HDCNs) and methods of forming HDCNs. In some embodiments, a hemiaminal organogel has a plurality of first polymers, each having a first end and a second end, a plurality of second polymers, each having a first end and a second end, and a plurality of trivalent aminal-hemiaminal linkages. The first end of each polymer of the plurality of first polymers may be covalently bonded to a first trivalent aminal-hemiaminal linkage. The second end of each polymer of the plurality of first polymers may be covalently bonded to a second trivalent aminal-hemiaminal linkage. The first end of each polymer of the plurality of second polymers may be covalently bonded to one of the plurality of trivalent aminal-hemiaminal linkages. The second end of each polymer of the plurality of second polymers may be non-covalently bonded.Type: ApplicationFiled: August 18, 2017Publication date: November 30, 2017Inventors: Dylan J. BODAY, Mareva B. FEVRE, Jeannette M. GARCIA, James L. HEDRICK, Rudy J. WOJTECKI, Mu San ZHANG
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Publication number: 20170267883Abstract: A thermo-responsive shear-thinning photo-curable composition comprises water, a linear amphiphilic polyether ABA triblock copolymer comprising at least one pendent ene group (*—CH?CH2) capable of undergoing a thiol-ene reaction, a water-soluble crosslinking agent comprising two or more methylenethiol groups (*—CH2SH), and a photoinitiator. Under non-shear conditions and a triblock copolymer concentration suitable for direct-write printing, the composition is a viscoelastic solid (hydrogel) at a temperature of about 15° C. to about 45° C., and is a free-flowing liquid (sol) between 0° C. and about 10° C. The hydrogel form can be shear-thinned at about 15° C. to about 45° C. to form a sol suitable for a direct-write printer using an extruding print-head. The compositions covalently crosslink when flood-exposed to ultraviolet radiation. The compositions have utility in forming three-dimensional scaffolds for growing living cells.Type: ApplicationFiled: March 16, 2016Publication date: September 21, 2017Inventors: Amanda C. Engler, Wei Han, Hareem T. Maune, Alshakim Nelson, Ankit Vora, Rudy J. Wojtecki, Mu San Zhang
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Patent number: 9758620Abstract: Methods, compounds, and compositions described herein generally relate to hemiaminal organogel networks (HDCNs) and methods of forming HDCNs. In some embodiments, a hemiaminal organogel has a plurality of first polymers, each having a first end and a second end, a plurality of second polymers, each having a first end and a second end, and a plurality of trivalent aminal-hemiaminal linkages. The first end of each polymer of the plurality of first polymers may be covalently bonded to a first trivalent aminal-hemiaminal linkage. The second end of each polymer of the plurality of first polymers may be covalently bonded to a second trivalent aminal-hemiaminal linkage. The first end of each polymer of the plurality of second polymers may be covalently bonded to one of the plurality of trivalent aminal-hemiaminal linkages. The second end of each polymer of the plurality of second polymers may be non-covalently bonded.Type: GrantFiled: September 3, 2015Date of Patent: September 12, 2017Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Dylan J. Boday, Mareva B. Fevre, Jeannette M. Garcia, James L. Hedrick, Rudy J. Wojtecki, Mu San Zhang