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6 条记录 (耗时 0.013 秒)

    Fabrication method for liquid crystal alignment layer by magnetic field treatment
    3.
    发明授权
    Fabrication method for liquid crystal alignment layer by magnetic field treatment 失效
    通过磁场处理制备液晶取向层的方法

    公开(公告)号：US5742370A

    公开(公告)日：1998-04-21

    申请号：US806831

    申请日：1997-02-26

    申请人： Chung Yup Kim ,  Young Chul Kim ,  Dong Young Kim ,  Hyun Nam Cho ,  Jun Young Lee

    发明人： Chung Yup Kim ,  Young Chul Kim ,  Dong Young Kim ,  Hyun Nam Cho ,  Jun Young Lee

    IPC分类号： G02F1/1337 ,  G02F1/337

    CPC分类号： G02F1/133711 ,  G02F1/13378

    摘要： A fabrication method for a liquid crystal alignment layer which has an excellent liquid crystal orientation efficiency and stability, and which can be mass-produced includes coating a thermoplastic polymer film on a transparent electrode to have a thickness of not less than 500.perp., fabricating a temporary cell with a structure of transparent electrode (ITO glass) / polymer film / liquid crystal / polymer film / transparent electrode (ITO glass) by attaching two transparent electrodes having polymer films coated thereon and infusing liquid crystal, fabricating a stack with a structure of transparent electrode (ITO glass)/polymer film /liquid crystal by contacting liquid crystal on the polymer film, heating the temporary cell or the stack at lower than phase separation temperature of a blend of liquid crystal and the polymer film, while applying a magnetic field exceeding 0.2 tesla, and cooling the temporary cell or the stack in the magnetic field at a cooling rate of not more than 100.degree. C. per minute.

    摘要翻译： 具有优异的液晶取向效率和稳定性的液晶取向膜的制造方法，可以批量生产的方法包括在透明电极上涂布热塑性聚合物膜以具有不小于500°的ORTHOGONAL的厚度，制造 通过在其上涂敷具有聚合物膜并注入液晶的两个透明电极，制造具有透明电极（ITO玻璃）/聚合物膜/液晶/聚合物膜/透明电极（ITO玻璃）的结构的临时电池， 透明电极（ITO玻璃）/聚合物膜/液晶，通过在聚合物膜上接触液晶，在液晶和聚合物膜的共混物的低于相分离温度下加热临时电池或叠层，同时施加磁场 超过0.2特斯拉，并以不超过t的冷却速度在磁场中冷却临时电池或电池 每分钟100℃。

    Soluble, electroconductive polypyrrole and method for preparing the same
    4.
    发明授权
    Soluble, electroconductive polypyrrole and method for preparing the same 失效
    可溶性导电聚吡咯及其制备方法

    公开(公告)号：US5795953A

    公开(公告)日：1998-08-18

    申请号：US532131

    申请日：1995-09-22

    申请人： Chung Yup Kim ,  Jun Young Lee ,  Dong Young Kim

    发明人： Chung Yup Kim ,  Jun Young Lee ,  Dong Young Kim

    IPC分类号： C08G61/12 ,  C08G73/06

    CPC分类号： C08G61/124

    摘要： Polypyrrole represented as the following structural formula II: ##STR1## wherein A.sup.- = ##STR2## which is synthesized by a method comprising the step of polymerizing pyrrole monomer in an aqueous solution containing dodecylbenzene sulfonic acid as a dopant, in the presence of an oxidant, resulting in polypyrrole which is easily dissolved in organic solvents.

    摘要翻译： 以下结构式II表示的聚吡咯：其中A- = ，其通过包括在含有十二烷基苯磺酸作为掺杂剂的水溶液中使吡咯单体聚合的步骤的方法合成，在存在下 的氧化剂，导致易于溶解在有机溶剂中的聚吡咯。

    Method for the preparation of polyester by use of composite catalyst
    5.
    发明授权
    Method for the preparation of polyester by use of composite catalyst 失效
    通过复合催化剂制备聚酯的方法

    公开(公告)号：US5714570A

    公开(公告)日：1998-02-03

    申请号：US683123

    申请日：1996-07-16

    申请人： Chung Yup Kim ,  Hyun Nam Cho ,  Hoi Wan Yoo ,  Hyung Joon Kim

    发明人： Chung Yup Kim ,  Hyun Nam Cho ,  Hoi Wan Yoo ,  Hyung Joon Kim

    IPC分类号： B01J31/12 ,  C08F4/60 ,  C08G63/82 ,  C08G63/85 ,  C08G63/78

    CPC分类号： B01J31/128 ,  C08G63/82 ,  C08G63/85 ,  B01J2231/49

    摘要： A method for preparing polyester by use of a catalyst. The method comprises the steps of: esterifying either a terephthalic acid, a dicarboxylic acid containing terephthalic acid or derivatives thereof with either ethylene glycol or a glycol containing ethylene glycol, or derivatives thereof to produce an esterification product containing either bis(.beta.-hydroxyethyl) terephthalate, its low molecular weight polymer, or a combination of .beta.-hydroxyethyl terephthalate and its low molecular weight polymer; and continuously polycondensing the obtained esterification product to prepare a polyester, wherein in the said polycondensing step, a composite polymerization catalyst dissolved in an ethylene glycol or an ethylene glycol-containing solution, consisting of a compound of antimony, a compound of titanium, and a compound of tin is used. The method can considerably reduce both the esterification time and the polycondensation time and provides a good color, reduced content of diethylene glycol and reduced concentration of terminal carboxyl groups in the prepared polyesters.

    摘要翻译： 一种使用催化剂制备聚酯的方法。 该方法包括以下步骤：将对苯二甲酸，含有对苯二甲酸的二羧酸或其衍生物与乙二醇或含乙二醇的二醇或其衍生物酯化，生成含有双（β-羟乙基）对苯二甲酸酯 ，其低分子量聚合物或对苯二甲酸β-羟乙酯与其低分子量聚合物的组合; 并将得到的酯化产物连续缩聚以制备聚酯，其中在所述缩聚步骤中，将溶解在乙二醇或含乙二醇的溶液中的复合聚合催化剂，其由锑化合物，钛化合物和 使用锡的化合物。 该方法可以显着降低酯化时间和缩聚时间，并提供良好的颜色，降低二甘醇含量，降低制备的聚酯中末端羧基的浓度。