Electrooptical liquid crystal system
    43.
    发明授权
    Electrooptical liquid crystal system 失效
    电光液晶系统

    公开(公告)号:US06565769B2

    公开(公告)日:2003-05-20

    申请号:US09750102

    申请日:2000-12-29

    IPC分类号: C09K1912

    摘要: To improve switching times, especially at low temperatures, one or more reactive liquid crystalline compounds is added to a liquid crystal mixture used in an electrooptical system. The electrooptical system comprises a PDLC film comprising a liquid crystal mixture forming micro- droplets in an optically isotropic, transparent polymer matrix between 2 electrode layers, one of the refractive indices of the liquid crystal mixture is matched to the refractive index of the polymer matrix, the PDLC film exhibits an electrically switching transparency essentially independent of the polarization of the incident light, the precursor of the PDLC film comprises one or more monomers, oligomers and/or prepolymers and a photoinitiator, and is cured photoradically, the liquid crystal mixture comprises one or more compounds of the formula I  wherein R, A1, A2, Z1, Z2, X1, X2, Q, Y and n are as defined herein.

    摘要翻译: 为了改善切换时间,特别是在低温下,将一种或多种反应性液晶化合物加入到用于电光学系统的液晶混合物中。 电光系统包括PDLC膜,其包含在2个电极层之间的光学各向同性的透明聚合物基质中形成微滴的液晶混合物,液晶混合物的折射率之一与聚合物基质的折射率相匹配, PDLC膜表现出基本上与入射光的极化无关的电切换透明体,PDLC膜的前体包含一种或多种单体,低聚物和/或预聚物以及光引发剂,并且在光电偶联下固化,液晶混合物包含一种或多种 更多的式I化合物,其中R,A1,A2,Z1,Z2,X1,X2,Q,Y和n如本文所定义。

    Cholesteric flakes
    45.
    发明授权
    Cholesteric flakes 失效
    胆固醇片

    公开(公告)号:US06414092B1

    公开(公告)日:2002-07-02

    申请号:US09722670

    申请日:2000-11-28

    IPC分类号: C08G8500

    摘要: The invention relates to cholesteric polymer flakes obtainable from a chiral polymerizable mesogenic material, to methods of manufacturing such cholesteric flakes, to the use of certain chiral and achiral polymerizable compounds with one or more terminal polymerizable groups for the manufacturing of such flakes and to the use of such cholesteric flakes as effect pigments in spraying or printing inks or paints or colored plastics for different applications, especially for automotive use, cosmetic products and security applications.

    摘要翻译: 本发明涉及可由手性可聚合介晶材料获得的胆甾醇型聚合物薄片,制造这种胆甾醇型薄片的方法,以及使用某些具有一个或多个端基可聚合基团的手性和非手性可聚合化合物用于制造这种薄片以及使用 的这种胆甾醇薄片作为喷涂或印刷油墨或油漆或着色塑料用于不同应用,特别是用于汽车用途,化妆品和安全应用的效果颜料。

    Reactive liquid crystal compounds
    46.
    发明授权
    Reactive liquid crystal compounds 有权
    活性液晶化合物

    公开(公告)号:US06344154B1

    公开(公告)日:2002-02-05

    申请号:US09563903

    申请日:2000-05-04

    IPC分类号: C09K1930

    摘要: The invention relates to reactive liquid crystal compounds of Formula (I), wherein P=polymerizable group, Sp=spacer, X and Z=linking group, n=1, m=0, or 1, A1 and A2=ring structure and R=unsubstituted or substituted alkyl group with the proviso that m=1 and/or R—P—Sp—X group. The composition comprising reactive liquid crystal compounds of formula (I), to linear or cross-linked (co) polymers obtainable by (co) polymerizing said reactive liquid crystals or compositions and to the use of said reactive liquid crystals or compositions for the preparation of linear or cross-linked polymers or polymer films for decorative pigments, cosmetics or security applications, active and passive optical elements, color filters, scattering displays, adhesives or synthetic resins with anisotropic mechanical properties.

    摘要翻译: 本发明涉及式(I)的反应性液晶化合物,其中P =可聚合基团,Sp =间隔基,X和Z =连接基团,n = 1,m = 0或1,A1和A2 =环结构,R =未取代或取代的烷基,条件是m = 1和/或RP-Sp-X基团。 包含式(I)的反应性液晶化合物的组合物与通过(共)聚合所述反应性液晶或组合物获得的线性或交联(共)聚合物以及所述反应性液晶或组合物用于制备 用于装饰颜料,化妆品或安全应用的线性或交联聚合物或聚合物膜,有源和无源光学元件,滤色器,散射显示器,具有各向异性机械性能的粘合剂或合成树脂。

    Circular UV polarizer
    50.
    发明授权
    Circular UV polarizer 失效
    圆形紫外线偏振片

    公开(公告)号:US5989461A

    公开(公告)日:1999-11-23

    申请号:US888363

    申请日:1997-07-03

    CPC分类号: G02B5/3075 G02B5/3016

    摘要: The invention relates to a circular UV polarizer based on a polymerized mesogen being obtainable by curing by actinic radiation or by heat of a polymerizable composition which comprises the following components:a) a liquid mesogenic component A composed of one or more achiral mesogenic compounds having at least one polymerizable end group optionally linked via a spacer group to the mesogenic core,b) a component B composed of one or more chiral compounds in such an amount that the maximum wavelength of reflection (.lambda..sub.max) of the composition is between 320 and 440 nm, inclusive, andc) a photoinitiator or thermal initiator component C.

    摘要翻译: 本发明涉及一种基于聚合介晶的环形紫外线偏振器,其可通过光化辐射或热可聚合组合物固化而获得,该可聚合组合物包含以下组分:a)由一种或多种非手性介晶化合物组成的液体介晶组分A,其具有 至少一个可聚合端基任选地通过间隔基团连接到介晶核,b)由一种或多种手性化合物组成的组分B,其量使组合物的最大反射波长(λmax)在320和440之间 nm,c)光引发剂或热引发剂组分C.