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公开(公告)号：US20220361486A1
公开(公告)日：2022-11-17
申请号：US17852307
申请日：2022-06-28
发明人： Adam GROSS , Andrew NOWAK , Michael VENTULETH , Stella FORS , Jason GRAETZ , Ashley DUSTIN , John VAJO
摘要： Antimicrobial coatings that are transparent and not easily stained are disclosed. Some variations provide a transparent antimicrobial structure comprising: a discrete solid structural phase comprising a solid structural polymer with a glass-transition temperature from 25° C. to 300° C.; a continuous transport phase interspersed within the discrete solid structural phase, wherein the continuous transport phase comprises a solid transport material; and an antimicrobial agent contained within the continuous transport phase, wherein the antimicrobial agent is dissolved in a fluid and/or in a solid solution with the continuous transport phase. The discrete solid structural phase and the continuous transport phase are separated by an average phase-separation length selected from 100 nanometers to 500 microns. This invention resolves the trade-off between antifouling and fluorinated material content. This invention also resolves the trade-off between transport of absorbed molecules and transparency. The result is an improved antimicrobial structure that is both antifouling and transparent.
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2.发明公开公开(公告)号：US20240301290A1
公开(公告)日：2024-09-12
申请号：US18664420
申请日：2024-05-15
发明人： Ashley DUSTIN , Adam GROSS , Andrew NOWAK , Adam SORENSEN
IPC分类号： C09K19/38 , C08G63/185 , C08G63/85 , C09K19/02 , C09K19/04
CPC分类号： C09K19/3809 , C08G63/185 , C08G63/85 , C09K19/02 , C08G2250/00 , C09K2019/0448
摘要： Some variations provide an oligomer composition comprising: polarizable first thermotropic liquid-crystal oligomer molecules (preferably urethanes or ureas) containing first triggerable reactive end groups, wherein the first triggerable reactive end groups are selected from the group consisting of hydroxyl, isocyanate, blocked isocyanate, acrylate, epoxide, amine, vinyl, ester, thiol, conjugated diene, substituted alkene, furan, maleimide, anthracene, and combinations thereof, and wherein the polarizable first thermotropic liquid-crystal oligomer molecules are characterized by a weight-average molecular weight from about 200 g/mol to about 10,000 g/mol; optionally, a plurality of polarizable second thermotropic liquid-crystal oligomer molecules containing second triggerable reactive end groups, wherein the second triggerable reactive end groups are capable of reacting with the first triggerable reactive end groups; and optionally, a reactive coupling agent capable of reacting with the first triggerable reactive end groups. Methods are described for converting the oligomer composition into an anisotropic thermally conductive polymer. Many commercial uses are disclosed.
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公开(公告)号：US20230090180A1
公开(公告)日：2023-03-23
申请号：US17989199
申请日：2022-11-17
发明人： Michael VENTULETH , Andrew NOWAK , Adam GROSS
IPC分类号： C09D171/02 , C08G65/00 , C08L101/02 , C09D201/02 , C08G65/22 , C08G81/00
摘要： Disclosed herein is a shelf-stable, two-part formula for making an antimicrobial biphasic polymer. Some variations provide a two-part formula for fabricating a biphasic polymer, wherein the two-part formula consists essentially of (A) a first liquid volume, wherein the first liquid volume comprises: a structural phase containing a solid structural polymer; a transport phase containing a solid transport polymer; a chain extender; a curing catalyst; a first solvent; and (B) a second liquid volume that is volumetrically isolated from the first liquid volume, wherein the second liquid volume comprises: a crosslinker that is capable of crosslinking the solid structural polymer with the solid transport polymer; and a second solvent. An antimicrobial agent (e.g., quaternary ammoniums salts) may be contained in the first liquid volume or in the second liquid volume. Methods of making and using the antimicrobial biphasic polymer are described.
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公开(公告)号：US20230332047A1
公开(公告)日：2023-10-19
申请号：US18142090
申请日：2023-05-02
发明人： Adam GROSS , Ashley DUSTIN , Adam SORENSEN
IPC分类号： C09K19/38
CPC分类号： C09K19/3809 , C09K2019/0448
摘要： Some variations provide an anisotropic thermally conductive polymer composition comprising a plurality of polarizable, thermotropic main-chain liquid-crystal polymer molecules with crystalline domains. The liquid-crystal polymer molecules are in a nematic phase or a smectic phase, and at least 80% of the crystalline domains are aligned along a crystal axis. A method of making an anisotropic thermally conductive polymer composition comprises: synthesizing or obtaining a polymer containing polarizable domains; heating the polymer to form a polymer melt; cooling the polymer melt to form a thermotropic liquid-crystal polymer; exposing the thermotropic liquid-crystal polymer to an electrical field, thereby aligning the polarizable domains along a crystal axis; and recovering the thermotropic liquid-crystal polymer as an anisotropic thermally conductive polymer composition. The polymer composition may be formed into an object characterized by thermal conductivity along the minimum dimension that is at least three times greater than thermal conductivity along the maximum dimension.
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5.发明公开公开(公告)号：US20230282398A1
公开(公告)日：2023-09-07
申请号：US18114199
申请日：2023-02-24
发明人： Brennan YAHATA , Adam GROSS , Christopher HENRY , Darby LAPLANT , Amber SUCICH , Raymond NGUYEN , Christine KIM
IPC分类号： H01F1/055
CPC分类号： H01F1/0551 , B82Y25/00
摘要： The disclosed technology provides a nanofunctionalized magnetic material feedstock comprising: from 50 wt % to 99.5 wt % of magnetic microparticles having an average microparticle effective diameter from 1 micron to 500 microns; from 0.4 wt % to 40 wt % of one or more rare earth elements; and from 0.1 wt % to 10 wt % of metal-containing inoculant nanoparticles, wherein at least 1 wt % of the inoculant nanoparticles are chemically and/or physically disposed on surfaces of the magnetic microparticles. The nanofunctionalized magnetic material feedstock is processed using high-throughput laser-based additive manufacturing to optimize the architecture of NdFeB or other magnets, generating site-specific, demagnetization-resistant microstructures. This disclosure teaches a rapid, single-step laser-based process to tailor the easy axis alignment, grain size, and microstructure of a permanent magnet at corners and edges to resist demagnetization.
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公开(公告)号：US20220251449A1
公开(公告)日：2022-08-11
申请号：US17542488
申请日：2021-12-05
发明人： Adam GROSS , Ashley DUSTIN , Adam SORENSEN
IPC分类号： C09K19/38
摘要： Some variations provide an anisotropic thermally conductive polymer composition comprising a plurality of polarizable, thermotropic main-chain liquid-crystal polymer molecules with crystalline domains. The liquid-crystal polymer molecules are in a nematic phase or a smectic phase, and at least 80% of the crystalline domains are aligned along a crystal axis. A method of making an anisotropic thermally conductive polymer composition comprises: synthesizing or obtaining a polymer containing polarizable domains; heating the polymer to form a polymer melt; cooling the polymer melt to form a thermotropic liquid-crystal polymer; exposing the thermotropic liquid-crystal polymer to an electrical field, thereby aligning the polarizable domains along a crystal axis; and recovering the thermotropic liquid-crystal polymer as an anisotropic thermally conductive polymer composition. The polymer composition may be formed into an object characterized by thermal conductivity along the minimum dimension that is at least three times greater than thermal conductivity along the maximum dimension.
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7.发明公开公开(公告)号：US20230282397A1
公开(公告)日：2023-09-07
申请号：US18114202
申请日：2023-02-24
发明人： Brennan YAHATA , Adam GROSS , Christopher HENRY , Darby LAPLANT , Amber SUCICH , Raymond NGUYEN , Christine KIM
CPC分类号： H01F1/0536 , H01F1/0045 , H01F7/021 , H01F7/0221 , H01F41/0253
摘要： The disclosed technology provides a cladded permanent magnet comprising: a core magnet region containing a core magnetic material; and a magnet cladding containing a shell magnetic material comprising (i) a magnetic compound that is chemically the same as the core magnetic material, (ii) one or more rare earth elements, and (iii) metal-containing inoculant nanoparticles, wherein the magnet cladding is disposed on the core magnet region, wherein the magnet cladding has at least 10% higher ambient-temperature magnetic coercivity compared to the core magnet region. The cladded permanent magnet is made via high-throughput laser-based additive manufacturing to optimize the architecture of NdFeB or other magnets, generating site-specific, demagnetization-resistant microstructures. This disclosure teaches a rapid, single-step laser-based process to tailor the easy axis alignment, grain size, and microstructure of a permanent magnet at corners and edges to resist demagnetization.
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公开(公告)号：US20230137249A1
公开(公告)日：2023-05-04
申请号：US18090442
申请日：2022-12-28
发明人： Ashley DUSTIN , Adam GROSS , Andrew NOWAK , Adam SORENSEN
IPC分类号： C09K19/38 , C08G63/185 , C08G63/85 , C09K19/02
摘要： Some variations provide an oligomer composition comprising: polarizable first thermotropic liquid-crystal oligomer molecules (preferably urethanes or ureas) containing first triggerable reactive end groups, wherein the first triggerable reactive end groups are selected from the group consisting of hydroxyl, isocyanate, blocked isocyanate, acrylate, epoxide, amine, vinyl, ester, thiol, conjugated diene, substituted alkene, furan, maleimide, anthracene, and combinations thereof, and wherein the polarizable first thermotropic liquid-crystal oligomer molecules are characterized by a weight-average molecular weight from about 200 g/mol to about 10,000 g/mol; optionally, a plurality of polarizable second thermotropic liquid-crystal oligomer molecules containing second triggerable reactive end groups, wherein the second triggerable reactive end groups are capable of reacting with the first triggerable reactive end groups; and optionally, a reactive coupling agent capable of reacting with the first triggerable reactive end groups. Methods are described for converting the oligomer composition into an anisotropic thermally conductive polymer. Many commercial uses are disclosed.
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9.发明申请公开(公告)号：US20230097289A1
公开(公告)日：2023-03-30
申请号：US18074988
申请日：2022-12-05
发明人： John VAJO , Adam GROSS , Jason GRAETZ
IPC分类号： C09D171/02 , C08G65/00 , C08L101/02 , C09D201/02 , C08G65/22 , C08G81/00
摘要： Some variations provide a sensing system configured to measure the concentration of an antimicrobial agent in a polymer, comprising: a polymer containing (i) a discrete solid structural phase comprising a solid structural polymer and (ii) a continuous transport phase comprising a solid transport polymer and capable of containing the antimicrobial agent; and an antimicrobial-agent sensor that chemically senses the antimicrobial agent. The antimicrobial-agent sensor is disposed on a surface of, and in mass transport with, the polymer. The antimicrobial-agent sensor contains a responsive material disposed on or within a carrier material. The responsive material is chemically reactive with the antimicrobial agent and exhibits an observable and quantifiable property change upon chemically reacting with the antimicrobial agent. The observable and quantifiable property change may involve chromaticity, optical transparency, ionic conductivity, or electronic conductivity, for example. Some variations provide methods of making and/or using the sensing system.
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公开(公告)号：US20220381718A1
公开(公告)日：2022-12-01
申请号：US17680195
申请日：2022-02-24
发明人： Adam GROSS , John VAJO , Jason GRAETZ
IPC分类号： G01N27/04
摘要： Some variations provide a system for sensing a chemical active in a coating, the system comprising: a coating disposed on a substrate; a chemical active contained within the coating, wherein the chemical active is mobile within the coating, and wherein the chemical active is ionically and/or electrically conductive; a first electrode and a second electrode configured to measure AC impedance within the coating; and an electrical meter configured in electrical communication with the first and second electrodes to read a signal corresponding to the AC impedance. Some methods comprise: pressing electrodes against the coating; reading out an impedance value; and converting the impedance value to a concentration of the chemical active in the coating. Other methods comprise: adding a solvent to a coating surface; pressing electrodes against a surface region; reading out an impedance value; and converting the impedance value to a concentration of the chemical active in the coating.
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