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公开(公告)号：WO2023066826A1
公开(公告)日：2023-04-27
申请号：PCT/EP2022/078756
申请日：2022-10-17
Applicant: MERCK PATENT GMBH
Inventor： STEFANIAK, Stefan , MANABE, Atsutaka , HOFMEYER, Sebastian
Abstract: An improved electro-mechanical principle for converting electric power into mechanical action and vice versa is described using dielectrics with extreme relative permittivity. The non-magnetic devices are based on relative movement of dielectrics in the presence of electric fields. The energy-saving devices use high-performance dielectrics based on ferroelectric nematic liquid crystals. Linear and circular mechanical action is proposed involving electromechanical actuators, non-magnetic motors and related electrical generators.
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2.发明申请
公开(公告)号：WO2022245717A1
公开(公告)日：2022-11-24
申请号：PCT/US2022/029417
申请日：2022-05-16
Applicant: TICONA LLC
Inventor： KIM, Young Shin , WILSON, Philip T. , DEMELLO, Don
Abstract: A medical device capable of transmitting a radiofrequency signal to and/or receiving a radiofrequency signal from an external device is provided. The medical device comprises at least one component that contains a polymer composition that exhibits a dielectric constant of about 6 or less at a frequency of 2 GHz, wherein the polymer composition includes a liquid crystalline polymer.
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公开(公告)号：WO2022196874A1
公开(公告)日：2022-09-22
申请号：PCT/KR2021/011567
申请日：2021-08-30
Applicant: 전북대학교산학협력단
Abstract: 본 발명은 반응성 액정(reactive mesogen, RM)과 빗형 교차 전극(inter-digitated electrode, IDE) 구조를 이용하여 휨 축(bending axis), 인-워드 벤딩(in-ward bending, IB) 및 아웃-워드 벤딩(out-ward bending, OB)을 구분할 수 있는 반응성 액정을 이용한 투명 휨 센서 및 상기 반응성 액정을 이용한 투명 휨 센서의 제조방법에 관한 것이다.
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公开(公告)号：WO2022173494A1
公开(公告)日：2022-08-18
申请号：PCT/US2021/061927
申请日：2021-12-06
Applicant: HRL LABORATORIES, LLC
Inventor： GROSS, Adam , DUSTIN, Ashley , SORENSEN, Adam
Abstract: 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：WO2021076243A1
公开(公告)日：2021-04-22
申请号：PCT/US2020/049611
申请日：2020-09-06
Applicant: FACEBOOK TECHNOLOGIES, LLC
Inventor： JIANG, Yingfei , JAMALI, Afsoon , JANG, Changwon , TRAVIS, Adrian , MAIMONE, Andrew , LU, Lu
Abstract: An optical device is provided. The optical device includes an optical grating. The optical grating includes two electrodes arranged opposite to each other and a liquid crystal (LC) composition sandwiched between the electrodes. The two electrodes provide a driving voltage to the optical grating. The LC mixture includes a host LC and one or more LC dimers dissolved as a guest in the host LC. The host LC and the one or more LC dimers have respective dielectric anisotropies of opposite signs in nematic phase. A net dielectric anisotropy of the LC mixture is substantially neutral at a predetermined temperature.
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Patent Agency Ranking
公开(公告)号：WO2020159620A9
公开(公告)日：2020-08-06
申请号：PCT/US2019/065055
申请日：2019-12-06
Applicant: ZYMERGEN INC. , KENT STATE UNIVERSITY
Inventor： SAFIR, Adam , RAJA, Shilpa , ZOOMBELT, Arjan , TWIEG, Robert J. , NEPAL, Pawan , WEDIGE-FERNANDO, Ashani , PALFFY-MUHORAY, Peter , YOKOYAMA, Hiroshi
Abstract: The disclosure discusses chiral dopants for liquid-crystalline materials. Chiral dopants can be bioreachable compounds, i.e., compounds produced from microbes through fermentation. Chiral dopants can also include bioreachable materials that are further modified by chemical synthetic steps. Chiral dopants as discussed herein can include biomolecules such as glycyrrhetinic acid (1), S-narigenin (2), shikimic acid (3), alpha-phellandrene (4), betulin (5), malic acid (6), valencene (7), or nootkatone (8), and any stereoisomers or chemically modified derivatives thereof. The disclosure further shows optical properties of such compounds in a liquid-crystalline material.
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公开(公告)号：WO2019023381A1
公开(公告)日：2019-01-31
申请号：PCT/US2018/043754
申请日：2018-07-25
Applicant: KYMETA CORPORATION
Inventor： LINN, Steven Howard , CHEN, Felix
Abstract: An apparatus for exchanging liquid crystal (LC) between two areas of an antenna array in an antenna and method for using the same are disclosed. In one embodiment, the antenna comprises a waveguide; an antenna element array having a plurality of radiating radio-frequency (RF) antenna elements formed using portions of first and second substrates with a liquid crystal (LC) therebetween, the portions of the first and second substrates adhered together, and a structure between the first and second substrates and in an RF inactive area outside of, and at an outer periphery of, the antenna element array that is without a ground plane instantiating the waveguide, the structure being operable to collect LC from an area between the first and second substrates forming the RF antenna elements due to LC expansion and to provide LC to the area between the first and second substrates forming the RF antenna elements due to LC contraction, the structure having a plurality of support spacers between the first and second substrates.
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公开(公告)号：WO2018213819A1
公开(公告)日：2018-11-22
申请号：PCT/US2018/033590
申请日：2018-05-21
Inventor： MCGINTY, Colin , BOS, Philip J. , FINNEMEYER, Valerie A. , REICH, Robert K. , CLARK, Harry R. , BERRY, Shaun R.
Abstract: A method for producing a photostable reactive mesogen alignment layer includes infusing an anisotropic dye into a microcavity so as to coat the an surface of the microcavity with the anisotropic dye; illuminating the anisotropic dye with polarized light so as to form an anisotropic dye layer aligned with respect to the inner surface of the microcavity; infusing a reactive mesogen and the liquid crystal material into the microcavity; illuminating the reactive mesogen at a wavelength selected to cause polymerization of the layer of the reactive mesogen so as to form a polymerized reactive mesogen layer; aligning the liquid crystal material with respect to the anisotropic dye layer; and bleaching the anisotropic dye layer.
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公开(公告)号：WO2018122719A1
公开(公告)日：2018-07-05
申请号：PCT/IB2017/058379
申请日：2017-12-22
Applicant: SABIC GLOBAL TECHNOLOGIES B.V.
Inventor： DI LENA, Fabio , GROOTE, Ramon , GROSSIORD, Nadia , VAN HEESWIJK, Ellen P.A.
Abstract: Methods of grafting a liquid crystalline coating onto a substrate, and articles comprising a substrate with a liquid crystalline coating are disclosed. The liquid crystalline coatings can be formed by (a) applying a primer layer comprising a Type II photoinitiator to a surface of the substrate, then (b) applying a coating mixture that comprises one or more liquid crystalline monomers to the surface of the substrate, and then (c) irradiating the coating mixture to form the liquid crystalline coating. The coating mixture can further comprise a second amount of a Type II photoinitiator. The methods can be performed in open air, at room temperature, or at ambient pressure, and the resulting liquid crystalline coatings can exhibit improved adhesive properties to the substrate.
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