POLYMERE MIT CF2O-STRUKTURELEMENTEN
    2.
    发明申请
    POLYMERE MIT CF2O-STRUKTURELEMENTEN 审中-公开
    与CF2的结构元素聚合物

    公开(公告)号:WO2002102875A2

    公开(公告)日:2002-12-27

    申请号:PCT/EP2002/006658

    申请日:2002-06-17

    CPC classification number: C08G65/007

    Abstract: Gegenstand der Erfindung sind kettenförmige Polycyclen, enthaltend 2 bis 12 gleiche oder verschiedene kettenständige Cyclen, ausgewählt aus 1,3-Phenylen, 1,4-Phenylen, 2,6-Naphthylen, 2,7-Naphthylen, 1,4-Cyclohexylen, Bicyclopentylen, Bicyclooctylen und Cubylen, die mit Halogen, Cyano, Alkyl, Fluoralkyl, Alkoxy und/oder Fluoralkoxy ein- oder mehrfach substituiert sein können, wobei die Cyclen durch Brücken-Gruppen, ausgewählt aus einer Einfachbindung, -CF 2 O-, -OCF 2 -, -O-, -S-, -SO 2 -, -CO-, -NH-, -(CH 2 ) 1-10 -, -(CF 2 ) 1-10 -, -CH(CH 3 )-, -CH(CCI 3 )-, -CH(CF 3 )-, C(CH 3 ) 2 -, -C(CF 3 ) 2 -, -C≡C-, -CH=CH-, -CF=CH-, -CH=CF-, -CF=CF-, (1) und (2) verknüpft sind mit der Massgabe, dass mindestens eine Brücken-Gruppe -CF 2 O- oder -OCF 2 - ist, wobei die Polycyclen an beiden Kettenenden durch reaktive Gruppen, ausgewählt aus -OH, -NH 2 , -NCO, -NCS, -OCOCI, -COCI, -COF, -COOH, -COOAlkyl und einer Carbonsäure-Anhydridgruppe, terminiert sind.

    Abstract translation: 本发明提供含有从1,3-亚苯基,1,4-亚苯基,2,6-亚萘基,2,7-亚萘基,1,4-亚环己基,Bicyclopentylen选择2至12周相同或不同链中的环链状多环 ,bicyclooctylene和Cubylen,一种卤素,氰基,烷基,氟烷基,烷氧基和/或氟代烷氧基或可被取代超过一次,更其中通过桥连基团,选自单键选择的周期, - CF 2 O-,-OCF 2 - O-,-S - , - SO 2 - , - CO - , - NH - , - (CH2)1-10-, - (CF 2)1-10-,-CH(CH3) - , - CH(CCL3) - ,-CH(CF 3) - , - C(CH 3)2 - ,-C(CF 3)2 - , - CC-,-CH = CH-,-CF = CH - , - CH = CF-, - CF = CF- 中,(1)和(2)与该至少一个桥连基团-CF 2 O-或-OCF 2,其中,在两个链多环与选自-OH反应性基团结束条件相关联,-NH 2,-NCO, -NCS,-OCOCI,-COCl,-COF,-COOH,-COO烷基和羧酸酐基被终止。

    DEVICE FOR THE REGULATION OF LIGHT TRANSMISSION

    公开(公告)号:WO2022122871A1

    公开(公告)日:2022-06-16

    申请号:PCT/EP2021/084904

    申请日:2021-12-09

    Abstract: 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.

    SWITCHABLE WINDOW ELEMENT
    4.
    发明申请

    公开(公告)号:WO2020120533A1

    公开(公告)日:2020-06-18

    申请号:PCT/EP2019/084566

    申请日:2019-12-11

    Abstract: A switchable window element (10) having a layer structure is proposed. The layer structure comprises a switchable layer (20), two polarizers and two optical retarders, wherein a first polarizer and a first optical retarder are arranged in an optical path (40) prior to the switchable layer (20) and a second polarizer and a second optical retarder are arranged in the optical path (40) after the switchable layer (20). Further, the switchable layer (20) is a vertically aligned liquid crystal layer comprising a liquid crystalline medium, wherein the product of the thickness d of the switchable layer (20) and the optical anisotropy Δn of the liquid crystalline medium is in the range of from 0.05 µm to 3.0 µm and the liquid crystalline medium has a clearing point of at least 70°C. Further aspects of the invention relate to the use of the switchable window element as window for a building or a vehicle.

    SWITCHING LAYERS FOR USE IN A WINDOW ELEMENT

    公开(公告)号:WO2023012202A1

    公开(公告)日:2023-02-09

    申请号:PCT/EP2022/071775

    申请日:2022-08-03

    Abstract: The present invention relates to window elements which comprise two switching layers, wherein the switching layers each comprise a liquid-crystalline medium containing one or more dichroic dyes and wherein in one of the optical states both switching layers have a twisted or supertwisted nematic configuration, wherein the handedness or helicity of the twisting of one of the two switching layers is opposite in direction with respect to the other switching layer. The invention further relates to compositions used in the window elements and to the use of the window elements for applications in buildings and vehicles with energy savings and improved comfort.

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