Preparation of acrylated liquid-crystalline compounds
    1.
    发明授权
    Preparation of acrylated liquid-crystalline compounds 有权
    丙烯酸酯化液晶化合物的制备

    公开(公告)号:US06440328B1

    公开(公告)日:2002-08-27

    申请号:US09552448

    申请日:2000-04-18

    IPC分类号: C09K1920

    摘要: The invention relates to a one-step process for the preparation of acryloyl group-containing liquid-crystalline monomers of the general formula (1) (Z—Y1—A2—Y2—)mM(—O—A1-acrylate)n  (1) in which mesogenic alcohols of the general formula (2) (Z—Y1—A2—Y2—)mM(OH)n  (2) are reacted with esters of 3-chloropropionic acid of the general formula (3) ClPr—A1—X  (3) with elimination of HCl, where acrylate is an acrylate radical, ClPr is a 3-chloropropionate radical, A1 are identical or different alkyl chain spacers having 2-20 carbon atoms, in which the carbon chain may be interrupted by non-adjacent ether, thioether, or imino groups, A2 are radicals A1 or single chemical bonds, M is a mesogenic group, X is a leaving group, Z are alkyl radicals or crosslinkable groups, Y1 and Y2, independently of one another, are a single chemical bond, —O—, —S—, —O—CO—, —CO—O—, —O—CO—O, —CO—NR1—, —NR1—CO—, —O—CO—NR1—, —NR1—CO—O— or —NR1—CO—NR1—, R1 is hydrogen or a C1-C4-alkyl radical, n is 1, 2, 3 or 4, and m is 0, 1, 2 or 3.

    摘要翻译: 本发明涉及一种制备通式(1)的含丙烯酰基的液晶单体的一步法,其中通式(2)的介晶醇与3-氯丙酸的酯反应 消除HCl的通式(3),其中丙烯酸酯是丙烯酸酯基,ClPr是3-氯丙酸酯基,A1是相同或不同的具有2-20个碳原子的烷基链间隔基,其中碳链可被非 - 相邻的醚,硫醚或亚氨基,A2是基团A1或单个化学键,M是介晶基团,X是离去基团,Z是烷基或可交联基团,Y1和Y2彼此独立地是单 化学键,-O - , - S-,-O-CO-,-CO-O-,-O-CO-O,-CO-NR1-,-NR1-CO-,-O-CO-NR1-, -NR1-CO-O-或-NR1-CO-NR1-,R1是氢或C1-C4-烷基,n是1,2,3或4,并且m是0,1,2或3。

    Optically anisotropic film, method of manufacturing the same, and liquid crystal display apparatus
    2.
    发明授权
    Optically anisotropic film, method of manufacturing the same, and liquid crystal display apparatus 失效
    光学各向异性膜及其制造方法以及液晶显示装置

    公开(公告)号:US06294231B1

    公开(公告)日:2001-09-25

    申请号:US09397918

    申请日:1999-09-17

    IPC分类号: C09K1938

    摘要: An optically anisotropic film obtained from a mixture comprising a polymer and a liquid crystal compound, wherein retardation of the optically anisotropic film at 80° C., 60° C. or 0° C. measured from a normal direction is 20-97%, 20-99% or 101-150%, respectively, of retardation at 30° C., and an absolute value of a deviation in retardation by said liquid crystal compound is not greater than 6% when the optically anisotropic film is held at 30% for 200 hours, has the temperature dependence in accordance with the temperature dependence of retardation of a liquid crystal display cell, and a small variation of retardation by the liquid crystal compound with the lapse of time, and thus is suitable for use in a liquid crystal display apparatus.

    摘要翻译: 从包含聚合物和液晶化合物的混合物获得的光学各向异性膜,其中从正常方向测量的在80℃,60℃或0℃的光学各向异性膜的延迟为20-97% 在30℃时为20-99%或101-150%,并且当光学各向异性膜保持在30%时,所述液晶化合物的延迟偏差的绝对值不大于6% 200小时,具有与液晶显示元件的延迟的温度依赖性相关的温度依赖性,随着时间的推移,液晶化合物的延迟变化小,因此适用于液晶 显示装置。

    Method for the production of hydroxyalkyl polysiloxanes
    4.
    发明授权
    Method for the production of hydroxyalkyl polysiloxanes 失效
    羟烷基聚硅氧烷的制备方法

    公开(公告)号:US06943265B2

    公开(公告)日:2005-09-13

    申请号:US10469663

    申请日:2002-02-07

    CPC分类号: C08G77/44 C08G77/16 C08G77/50

    摘要: The invention relates to a method for the production of hydroxyalkyl polysiloxanes of general formula (V) (SiO4/2)k(R12SiO3/2)m(R12SiO2/2)p(R13SiO1/2)q[O1/2SiR32—(CR42)b—OH]5[O1/2H]t (V), wherein organosiloxanes of general formula (VI) (SiO4/2)k(R1SiO3/2)m(R12SiO2/2)p(R13SiO1/2)q[O1/2H]r(VI) containing silanol are made to react with compounds having at least one unit of general formula (IV) [O—(CR42)b—SiR32]n—(IV).

    摘要翻译: 本发明涉及一种制备通式(Ⅴ)的羟基烷基聚硅氧烷的方法,其中R 1,R 2,R 2, (2/2)SiO 2/2/2)(2)SiO 2/2(SiO 2)2 SiO 2 (1/2)1/2(1/2)(1/2) [O 2 1/2] SiR 3 - (CR 4)2 1/2/2/2> 1/2> 1/2> 1

    Process for preparing isocyanatoorganosilanes
    5.
    发明授权
    Process for preparing isocyanatoorganosilanes 有权
    异氰酸酯基有机硅烷的制备方法

    公开(公告)号:US06812361B2

    公开(公告)日:2004-11-02

    申请号:US10451499

    申请日:2003-06-20

    IPC分类号: C07F710

    CPC分类号: C07F7/1892 C07F7/1804

    摘要: The invention relates to a method for producing isocyanato-organosilane of general formula (I) R2R3R4Si—R1—N═C═O. According to said method, gaseous carbamato-organosilane of general formula (II) R2R3R4Si—R1—NH—CO—OR (II), wherein R represents a monovalent C1-C10 alkyl radical, R1 represents a bivalent C1-C6 hydrocarbon radical and R2, R3 and R4 respectively represent a methyl, ethyl, n-propyl, i-propyl, methoxy, ethoxy, n-propoxy or i-propoxy radical, is heated in the presence of a heterogeneous catalyst.

    摘要翻译: 本发明涉及制备通式(I)R 2 R 3 Si-R 1 -N = C = O的异氰酸根合有机硅烷的方法。 根据所述方法,通式(Ⅱ)R 2 R 3 Si-R 1 -NH-CO-OR(II)的气态​​氨基甲酰 - 有机硅烷,其中R表示一价C1- C10烷基,R 1表示二价C 1 -C 6烃基,R 2,R 3和R 4分别表示甲基,乙基,正丙基,异丙基,甲氧基,乙氧基, 正丙氧基或异丙氧基在异相催化剂存在下加热。