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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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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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3.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：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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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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公开(公告)号：US20220225608A1
公开(公告)日：2022-07-21
申请号：US17713356
申请日：2022-04-05
发明人： Adam GROSS , Andrew NOWAK , Ashley DUSTIN , Jason GRAETZ , John VAJO
摘要： An antimicrobial coating is disclosed that provides fast transport rates of biocides for better effectiveness to deactivate SARS-CoV-2 and other viruses or bacteria on common surfaces. Some variations provide an antimicrobial structure comprising: a solid structural phase comprising a solid structural material; a continuous transport phase that is interspersed within the 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 solid structural phase and the continuous transport phase are separated by an average phase-separation length from about 100 nanometers to about 500 microns. The antimicrobial structure is capable of destroying at least 99.99% of bacteria and/or viruses in 10 minutes of contact. Many options are disclosed for suitable materials to form the solid structural phase, the continuous transport phase, and the antimicrobial agent.
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公开(公告)号：US20210386059A1
公开(公告)日：2021-12-16
申请号：US17090968
申请日：2020-11-06
发明人： Adam GROSS , Andrew NOWAK , Ashley DUSTIN , Jason GRAETZ , John VAJO
摘要： An antimicrobial coating is disclosed that provides fast transport rates of biocides for better effectiveness to deactivate SARS-CoV-2 and other viruses or bacteria on common surfaces. Some variations provide an antimicrobial structure comprising: a solid structural phase comprising a solid structural material; a continuous transport phase that is interspersed within the 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 solid structural phase and the continuous transport phase are separated by an average phase-separation length from about 100 nanometers to about 500 microns. The antimicrobial structure is capable of destroying at least 99.99 wt % of bacteria and/or viruses in 10 minutes of contact. Many options are disclosed for suitable materials to form the solid structural phase, the continuous transport phase, and the antimicrobial agent.
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