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公开(公告)号：US20240134218A1
公开(公告)日：2024-04-25
申请号：US18266424
申请日：2021-12-09
申请人： MERCK PATENT GMBH
发明人： Michael JUNGE , Andreas BEYER , Ewa Dominika PTAK
CPC分类号： G02F1/132 , C09K19/3003 , C09K19/322 , G02F1/13712 , C09K2019/3004 , C09K2019/3009 , C09K2019/323 , C09K2219/17
摘要： The present invention relates to devices for the regulation of light transmission and in particular to switchable windows. The present invention in particular relates to window elements which comprise electrically switchable optical cells with a switchable layer containing a liquid-crystalline medium having a clearing point which is within the working temperature of the window element. The present invention also relates to liquid-crystalline media for use in the window elements.
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公开(公告)号：US20230383186A1
公开(公告)日：2023-11-30
申请号：US18200834
申请日：2023-05-23
申请人： Merck Patent GmbH
CPC分类号： C09K19/3003 , C09K19/54 , C09K19/063 , C09K19/3066 , C09K19/3048 , C09K19/12 , C09K19/3098 , C09K2019/3009 , C09K2019/301 , C09K2019/3096 , C09K2019/3053 , C09K2019/3054 , C09K2019/122 , C09K2019/3016 , C09K2019/123
摘要： A liquid-crystal (LC) medium which is based on a mixture of polar compounds and is substantially dielectrically neutral, its use for optical, electro-optical and electronic purposes, in particular as optical retarder or optical compensator in LC displays, an optical retarder or optical compensator containing the LC medium, an optical, electrooptical or electronic device containing the optical retarder or optical compensator, and a process of manufacturing the optical retarder or optical compensator.
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公开(公告)号：US11788008B2
公开(公告)日：2023-10-17
申请号：US17655710
申请日：2022-03-21
申请人： University of Leeds
IPC分类号： G02F1/1333 , C09K19/12 , C09K19/30 , C09K19/54
CPC分类号： C09K19/12 , C09K19/3003 , C09K19/542 , C09K2019/122 , C09K2019/3004 , C09K2019/3009 , C09K2019/548
摘要： There is provided the use of an aligned nematic elastomer to form a material having auxetic properties wherein the aligned nematic material has a mechanical Fréedericksz transition. Also provided is a method of producing an aligned nematic elastomer for said use.
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公开(公告)号：US20230323207A1
公开(公告)日：2023-10-12
申请号：US18133098
申请日：2023-04-11
申请人： MERCK PATENT GMBH
发明人： Atsutaka MANABE , Rocco FORTTE , Harald HIRSCHMANN
CPC分类号： C09K19/3098 , C09K19/542 , C09K19/3003 , C09K2019/3009 , C09K2019/301 , C09K2019/0414
摘要： The present invention relates to a liquid-crystal material (LC media) comprising thiophene derivatives which are stabilised by sterically hindered amines or amine derivatives (HALS, hindered amine light stabilisers), and to liquid-crystal displays (LC displays) which contain these LC materials.
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公开(公告)号：US11773327B2
公开(公告)日：2023-10-03
申请号：US16832251
申请日：2020-03-27
发明人： Wenyang Ma , Liwei Wang , Weigang Yan , Wenming Han , Haibin Xu
IPC分类号： G02F1/1334 , C09K19/54 , C09K19/30
CPC分类号： C09K19/544 , C09K19/3003 , C09K19/3066 , C09K2019/301 , C09K2019/3004 , C09K2019/3009 , C09K2019/3016 , C09K2019/548
摘要： A PSA-type liquid crystal composition includes a host liquid crystal A and a polymerizable component B, where the host liquid crystal A includes one or more liquid crystal compounds, and the polymerizable component B includes at least one compound selected from compounds of general formula I-1, general formula I-2 and general formula I-3. A liquid crystal display device includes the PSA-type liquid crystal composition above. The PSA-type liquid crystal composition has better intersolubility, cannot be crystallized at a low-temperature environment, can form a relatively stable pretilt angle after the polymerization of the polymerizable component, avoids the image sticking, and inhibits the occurrence of a display defect, such as Zara Particle, during the polymerization.
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公开(公告)号：US11697769B2
公开(公告)日：2023-07-11
申请号：US17541586
申请日：2021-12-03
申请人： Merck Patent GmbH
发明人： Stephen Mulcahy , Owain Llyr Parri , Sarabjot Kaur
IPC分类号： G02F1/1333 , C09K19/18 , C09K19/06 , C09K19/34 , C09K19/38 , C09K19/20 , C09K19/32 , C09K19/04 , C09K19/12 , C09K19/30
CPC分类号： C09K19/18 , C09K19/067 , C09K19/068 , C09K19/2028 , C09K19/322 , C09K19/3405 , C09K19/3491 , C09K19/3814 , C09K2019/0414 , C09K2019/0448 , C09K2019/123 , C09K2019/181 , C09K2019/2035 , C09K2019/2042 , C09K2019/3009 , C09K2019/3012 , C09K2019/3071 , C09K2019/3077 , C09K2019/3083 , C09K2019/3408 , C09K2219/03
摘要： A polymerizable LC material comprising one or more reactive mesogenic compounds, one or more chiral compounds and a block copolymer that comprises at least one polyfluorooxetane block bonded to a polyether block, said polyfluorooxetane block having a repeating unit of the formula
Further, a method for its preparation, a polymer film obtainable from a corresponding polymerizable LC material, a method of preparation of such polymer film, and the use of such polymer film and said polymerizable LC material in optical, electro-optical, decorative or security devices.-
公开(公告)号：US11685863B2
公开(公告)日：2023-06-27
申请号：US17431045
申请日：2020-02-14
申请人： MERCK PATENT GMBH
发明人： Helmut Haensel , Qiong Tong , Rocco Fortte , Edward Plummer , Thomas Eichhorn
IPC分类号： C09K19/54 , C07C69/533 , C07D211/46 , C07D211/94 , C07D319/06 , C08F222/26 , C09K19/30
CPC分类号： C09K19/542 , C07C69/533 , C07D211/46 , C07D211/94 , C07D319/06 , C08F222/26 , C09K19/3003 , C09K2019/301 , C09K2019/3004 , C09K2019/3009 , C09K2019/3016 , C09K2019/548
摘要： The present invention relates to polymerisable compounds, to processes and intermediates for the preparation thereof, to liquid-crystal (LC) media comprising them, and to the use of the polymerisable compounds and LC media for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the polymer sustained alignment (PS, PSA) and self-aligning (SA) type.
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公开(公告)号：US20190203137A1
公开(公告)日：2019-07-04
申请号：US16224918
申请日：2018-12-19
IPC分类号： C10M105/56 , C10M105/06 , C10M119/02
CPC分类号： C10M105/72 , C09K5/10 , C09K19/00 , C09K19/062 , C09K19/3491 , C09K2019/122 , C09K2019/2035 , C09K2019/3009 , C10M105/06 , C10M105/32 , C10M105/34 , C10M105/56 , C10M119/02 , C10M119/12 , C10M129/70 , C10M133/24 , C10M169/044 , C10M2203/065 , C10M2205/0213 , C10M2205/0285 , C10M2205/046 , C10M2207/284 , C10M2207/2845 , C10M2209/084 , C10M2215/16 , C10M2219/086 , C10M2219/101 , C10M2219/102 , C10N2220/022 , C10N2220/06 , C10N2230/02 , C10N2230/06 , C10N2240/06 , C10N2240/10 , C10N2240/30
摘要： A method for improving wear control, while maintaining or improving energy efficiency, in an engine or other mechanical component lubricated with a lubricating oil, by using as the lubricating oil a formulated oil. The formulated oil includes at least one lubricating oil base stock having one or more liquid crystals represented by the formula: R1-(A)m-Y—(B)n—R2 wherein R1 and R2 are the same or different and are a substituted or unsubstituted, hydrocarbon, alkoxy or alkylthio group having from 2 to 24 carbon atoms; A and B are the same or different and are a cycloaliphatic group or aromatic group, provided at least one of A and B is an aromatic group; Y is a covalent bond, —CH2-CH2-, —CH═CH—, —OCOO—, —CO—, —CSO—, —CSS—, —CS—, —O—, —S—, —SO—, —SO2-, —CH2O—, —OCH2O—, —NO—, —ONO2, or —C≡N; and m and n are independently 0, 1, 2 or 3. The lubricating oil base stock has a kinematic viscosity of 2 cSt to 200 cSt at 40° C., and 1 cSt to 25 cSt at 100° C. Also, this disclosure relates to low traction/energy efficient liquid crystal base stocks containing liquid crystals.
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公开(公告)号：US20180355249A1
公开(公告)日：2018-12-13
申请号：US15781703
申请日：2016-11-25
发明人： Masayuki SAITO
CPC分类号： C09K19/46 , C09K19/12 , C09K19/20 , C09K19/30 , C09K19/3068 , C09K19/3098 , C09K19/34 , C09K19/3402 , C09K19/38 , C09K19/42 , C09K19/44 , C09K19/56 , C09K2019/122 , C09K2019/123 , C09K2019/3004 , C09K2019/3009 , C09K2019/301 , C09K2019/3016 , C09K2019/3036 , C09K2019/3037 , C09K2019/3071 , C09K2019/3078 , C09K2019/3425 , G02F1/13 , G02F1/1337
摘要： Provided are a liquid crystal composition in which vertical alignment of liquid crystal molecules can be achieved by action of a polymer, and a liquid crystal display device including the composition. The composition is a nematic liquid crystal composition that has negative dielectric anisotropy and contains a specific liquid crystal compound having large negative dielectric anisotropy as a first component and a polar compound having a polymerizable group as a first additive, and may contain a specific liquid crystal compound having high maximum temperature or small viscosity as a second component, a specific liquid crystal compound having large negative dielectric anisotropy as a third component, and a polymerizable compound as a second additive, and the liquid crystal display device includes the composition.
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公开(公告)号：US20180244999A1
公开(公告)日：2018-08-30
申请号：US15758522
申请日：2016-08-10
申请人： MERCK PATENT GMBH
CPC分类号： C09K19/586 , C09K19/12 , C09K19/3003 , C09K2019/0448 , C09K2019/122 , C09K2019/123 , C09K2019/181 , C09K2019/3009 , C09K2019/3016 , C09K2019/3027 , C09K2019/3083 , C09K2019/523 , C09K2219/13
摘要： The present invention relates to a light modulation element comprising a pair of opposing transparent substrates, which are provided with an electrode structure provided on the inner surface of each substrate and a cholesteric liquid crystalline medium comprising one or more particles.The invention further relates to the use of a light modulation element as described above and below in optical or electro optical components or devices.The invention further relates to an optical or electro-optical component or device, comprising a light modulation element as described above and below.
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