Method for purifying liquid crystal
    31.
    发明授权
    Method for purifying liquid crystal 失效
    液晶纯化方法

    公开(公告)号:US6056892A

    公开(公告)日:2000-05-02

    申请号:US34403

    申请日:1998-03-04

    摘要: A process for purifying an anti-ferroelectric liquid crystal or a ferrielectric liquid crystal, which comprises the following steps 1 to 4,step 1: preparing a liquid crystal solution of an anti-ferroelectric liquid crystal or a ferrielectric liquid crystal to be purified in an aromatic hydrocarbon solvent,step 2; bringing the liquid crystal solution into contact with at least one adsorbent selected from the group consisting of zeolite, alumina and silica gel to separate the liquid crystal solution from the adsorbent,step 3; precision-filtering the resultant liquid crystal solution, andstep 4; removing the solvent from an obtained filtrate and recovering a purified liquid crystal,according to which process, there can be easily obtained a high-purity liquid crystal which shows a specific resistance value of at least 5.times.10.sup.12 .OMEGA..multidot.cm and a small thermal decomposition ratio, and which is therefore suitable as a raw material for a liquid crystal display device.

    摘要翻译: 一种用于纯化反铁电液晶或电介质液晶的方法,其包括以下步骤1至4,步骤1:制备待纯化的反铁电液晶或电介质液晶的液晶溶液 芳烃溶剂,步骤2; 使液晶溶液与选自沸石,氧化铝和硅胶的至少一种吸附剂接触,以将液晶溶液与吸附剂分离,步骤3; 对所得液晶溶液进行精密过滤,步骤4; 从所得滤液中除去溶剂并回收纯化的液晶,根据该方法,可以容易地获得显示比电阻值为至少5×10 12欧米伽×厘米并具有小的热分解比的高纯度液晶,以及 因此适合作为液晶显示装置的原料。

    Photocurable composition and coating composition
    33.
    发明申请
    Photocurable composition and coating composition 有权
    可光固化组合物和涂料组合物

    公开(公告)号:US20070066702A1

    公开(公告)日:2007-03-22

    申请号:US10563868

    申请日:2004-08-04

    IPC分类号: C08J3/28

    摘要: There are provided a photocurable composition capable of being readily cured by irradiation of ultraviolet rays and a cured product of the photocurable composition, as well as a coating composition and a coating film obtained from the coating composition. The cured product exhibits a high refractive index, a less discoloration and an excellent transparency. The present invention relates to a photocurable composition comprising (A) an episulfide compound containing a thiirane ring; and (B) a photo-base generator represented by the general formula (1): wherein Ar is phenyl, etc.; R is an alkyl group, etc.; —A+ is an ammonium ion; and X− is a borate anion, etc., and a coating composition comprising the photocurable composition and (C) a modified silicone oil, as well as a cured product and a coating film obtained from these compositions.

    摘要翻译: 提供能够通过紫外线照射容易地固化的光固化性组合物和光固化性组合物的固化物,以及由涂料组合物得到的涂料组合物和涂膜。 固化产物具有高的折射率,较少的变色和优异的透明度。 本发明涉及一种光固化组合物,其包含(A)含有硫杂环戊烯环的环硫化合物; 和(B)由通式(1)表示的光碱发生剂:其中Ar是苯基等; R是烷基等; -A + 是铵离子; 和X - 是硼酸根阴离子等,以及包含可光固化组合物和(C)改性硅油的涂料组合物,以及由这些组合物获得的固化产物和涂膜。

    Optically active compound and liquid crystal composition containing the compound
    35.
    发明申请
    Optically active compound and liquid crystal composition containing the compound 审中-公开
    含有该化合物的光学活性化合物和液晶组合物

    公开(公告)号:US20050260358A1

    公开(公告)日:2005-11-24

    申请号:US10614296

    申请日:2003-07-08

    摘要: An optically active compound of the general formula (1), wherein n is an integer of 4 to 8, X is -Ph-COO-Ph-Ph-, -Ph-Ph-COO-Ph-, -Ph-OC-Ph-Ph-, -Ph-Ph-OC-Ph-, -Ph-Ph-Ph-, -Cy-COO-Ph-Ph-, -Ph-Ph-OC-Cy-, -Ph-OC-Ph-COO-Ph-, -Ph-OC-Cy-COO-Ph-, -Ph-OC-Np-COO-Ph-, -Np-OC-Ph- or -Ph-COO-Np- in which -Ph- is a 1,4-phenylene group, -Cy- is a trans-1,4-cyclohexylene group and -Np- is a 2,6-naphthylene group, and C* is an asymmetric carbon, and a nematic liquid crystal composition containing the above optically active compound. According to the present invention, there is provided a nematic liquid crystal composition containing the optically active compound having a helical twisting power (HTP) of 10 or more and giving a chiral dopant for a nematic liquid crystal, which chiral dopant has a property that the pitch of its induced helix decreases in length with an increase in temperature.

    摘要翻译: 通式(1)的光学活性化合物,其中n为4〜8的整数,X为-Ph-COO-Ph-Ph-,-Ph-Ph-COO-Ph-,-Ph-OC-Ph -Ph-Ph-OC-Ph-,-Ph-Ph-Ph-,-Cy-COO-Ph-Ph-,-Ph-Ph-OC-Cy-,-Ph-OC-Ph-COO -Ph-,-Ph-OC-Cy-COO-Ph-,-Ph-OC-Np-COO-Ph-,-Np-OC-Ph-或-Ph-COO-Np-,其中-Ph-为 1,4-亚苯基,-Cy-是反-1,4-亚环己基,-Np-是2,6-亚萘基,C *是不对称碳,并且含有上述的向列型液晶组合物 光学活性化合物。 根据本发明,提供了一种向列型液晶组合物,其含有螺旋扭转力(HTP)为10以上的光学活性化合物,并赋予向列型液晶的手性掺杂剂,该手性掺杂剂具有以下性质: 其诱导螺旋的间距随着温度的升高而降低。

    Optically active compound and liquid crystal composition containing the compound
    36.
    发明授权
    Optically active compound and liquid crystal composition containing the compound 失效
    含有该化合物的光学活性化合物和液晶组合物

    公开(公告)号:US06677475B2

    公开(公告)日:2004-01-13

    申请号:US10046902

    申请日:2002-01-17

    IPC分类号: C07C6976

    摘要: Optically active compounds of the following general formula (1) useful as chiral dopant, wherein n is an integer of 0 to 5, provided that when n is 0, A is a single bond (—) and that when n is 1 to 5, A is a single bond (—), —O—, —COO—, —Cy— or —Cy—COO— in which —Cy— is a trans-1,4-cyclohexylene group, each of X and Y is independently a hydrogen atom or a fluorine atom, B is a single bond (—), —COO—, —COO—Ph— or —Ph—COO— in which —Ph— is a 1,4-phenylene group, and C* is an asymmetric carbon. The chiral dopant of the present invention have a high helical twisting power of at least 9 and suitably have a feature that the helical pitch induced by them decreases in length with an increase in temperature so that they are advantageous for use in a nematic liquid crystal composition.

    摘要翻译: 可用作手性掺杂剂的以下通式(1)的光学活性化合物,其中n为0至5的整数,条件是当n为0时,A为单键( - ),当n为1至5时, A是单键( - ),-O - , - COO - , - C y - 或-C y -COO-,其中-Cy-是反式-1,4-亚环己基,X和Y各自独立地为 氢原子或氟原子,B是单键( - ),-COO-,-COO-Ph-或-Ph-COO-,其中-Ph-是1,4-亚苯基,C *是 不对称碳。 本发明的手性掺杂剂具有至少9的高的螺旋扭转力,并且适当地具有由它们引起的螺旋桨距随温度升高而减小的特征,因此它们有利于用于向列型液晶组合物 。

    Mold for shaping a skin sheet
    38.
    发明授权
    Mold for shaping a skin sheet 失效
    用于成型皮肤片的模具

    公开(公告)号:US6056534A

    公开(公告)日:2000-05-02

    申请号:US45676

    申请日:1998-03-23

    申请人: Masahiro Johno

    发明人: Masahiro Johno

    摘要: A mold for shaping a skin sheet has a three-dimensional body including a top surface and side surfaces that work as a shaping surface, respectively. The top surface and the side surfaces have a plurality of small holes communicating with a suction unit for drawing the skin sheet thereon by suction force generated by the suction unit. Each of the side surfaces has a product portion and a non-product portion parted at a trimming line, the portions corresponding to those of the skin sheet that are used as a product and not used as the product, respectively. The body has a plurality of guidance plates, each projecting outside at an edge line of the body. An upper edge of each of the guidance plates forms a ridge line in a shape of a wave. The ridge line descends from a position in the vicinity of an intersection point of the edge line and the trimming line to a direction of the bottom of the body so as to form a valley and thereafter ascends to an opposite direction so as to form a mountain. The height of the deepest point of the valley is lower than that of the trimming line.

    摘要翻译: 用于成形皮肤片的模具具有分别作为成形表面起作用的顶面和侧面的三维体。 顶表面和侧表面具有多个小孔,其与抽吸单元连通,用于通过由抽吸单元产生的吸力将其吸附在其上。 每个侧表面具有分割在修剪线上的产品部分和非产品部分,分别对应于用作产品并且不用作产品的皮肤片的部分。 主体具有多个引导板,每个引导板在主体的边缘线处突出到外侧。 每个引导板的上边缘形成波浪形的脊线。 脊线从边缘线和修剪线的交叉点附近的位置下降到主体的底部方向,从而形成谷部,然后上升到相反的方向,形成山体 。 山谷最深处的高度低于修剪线的高度。

    Optically active compound and nematic liquid crystal composition containing the compound
    40.
    发明授权
    Optically active compound and nematic liquid crystal composition containing the compound 失效
    含有该化合物的光学活性化合物和向列型液晶组合物

    公开(公告)号:US06805921B2

    公开(公告)日:2004-10-19

    申请号:US10212230

    申请日:2002-08-06

    IPC分类号: C09K1920

    CPC分类号: C09K19/586 Y10T428/10

    摘要: An optically active compound of the following general formula (1), wherein A is —C≡C— or —COO—, each of R1 and R2 is independently CnH2n+1—, (C2H5)2CHCH2C*H(CH3)OOC—, CmH2m+1C*H(CH3)OOC— or C6H5C*H(CH3)OOC— in which n is an integer of 2 to 5, m is an integer of 5 to 9, C6H5— is phenyl group, and C* is an asymmetric carbon, provided that there is no case where R1 and R2 are together CnH2n+1— or C6H5C*H(CH3)OOC— and that when both R1 and R2 are CmH2m+1C*H(CH3)OOC—, m in CmH2m+1C*H(CH3)OOC— represented by R1 and m in CmH2m+1C*H(CH3)OOC— represented by R2 may be different integers. The optically active compound of the present invention is excellently valuable as a chiral dopant since it has properties that its helical twisting power (HTP) is at least 9, that a helical pitch induced decreases with an increase in temperature and further that its birefringence (&Dgr;n) is large.

    摘要翻译: 下列通式(1)的光学活性化合物,其中A为-C = C-或-COO-,R1和R2各自独立地为C n H 2n + 1,(C 2 H 5)2 CHCH 2 C * H(CH 3)OOC-, CmH2m + 1C * H(CH3)OOC-或C6H5C * H(CH3)OOC-,其中n为2〜5的整数,m为5〜9的整数,C6H5-为苯基,C *为 只要不存在R 1和R 2一起为C n H 2n + 1或C 6 H 5 C * H(CH 3)OOC-的情况,并且当R 1和R 2均为C m H 2m + 1C * H(CH 3)OOC-时,m C m H 2 m 由R1表示的+ 1C * H(CH3)OOC-,R2表示的CmH2m + 1C * H(CH3)OOC-中的m可以是不同的整数。本发明的光学活性化合物作为手性掺杂剂是非常有价值的,因为它 具有其螺旋扭转功率(HTP)至少为9的性质,螺旋桨距诱导随着温度的升高而降低,并且进一步其双折射(Deltan)大。