Optically active isoxazole derivatives
    2.
    发明授权
    Optically active isoxazole derivatives 失效
    光活性异恶唑衍生物

    公开(公告)号:US5266703A

    公开(公告)日:1993-11-30

    申请号:US906347

    申请日:1992-06-30

    摘要: The present invention relates to novel optically active isoxazole derivatives represented by general formula: ##STR1## which are useful as intermediates for synthesis of prostaglandin and a process for producing the same as well as novel aldehyde compounds represented by general formula: ##STR2## which are intermediates for preparing the compounds [XI] described above and a process for preparation thereof. In the compounds shown by these formulae, R.sup.1 represents an alkyl group or a cycloalkyl group which may have an alkoxy group or a group shown by -Ra-A-B (wherein Ra is an alkyl group; A is a hetero atom or an single bond; and B is an aromatic or hetero ring which may have a substituent(s)); and R.sup.2 and R.sup.3, which may be the same or different, each represents an aralkyl group, a silyl group or an acyl group.

    摘要翻译: 本发明涉及以通式表示的新颖的光学活性异恶唑衍生物:作为前列腺素合成的中间体及其制备方法,以及由通式表示的新型醛化合物:IMAGE > [IX],它们是制备上述化合物[XI]的中间体及其制备方法。 在这些化合物所示的化合物中,R 1表示可以具有烷氧基的环烷基或-R a-AB所示的基团(其中R a为烷基; A为杂原子或单键; 并且B是可以具有取代基的芳族或杂环); 并且可以相同或不同的R 2和R 3各自表示芳烷基,甲硅烷基或酰基。

    Copper-Clad Laminate and Method for Manufacturing Same
    5.
    发明申请
    Copper-Clad Laminate and Method for Manufacturing Same 审中-公开
    铜包层压板及其制造方法

    公开(公告)号:US20130252019A1

    公开(公告)日:2013-09-26

    申请号:US13989839

    申请日:2011-12-26

    IPC分类号: H01B7/40 C23C18/16

    摘要: Provided is a copper-clad laminate comprising a metal conductor layer formed by dry plating and/or wet plating on a surface obtained by subjecting a surface of a liquid crystal polymer film to plasma treatment in an oxygen atmosphere or a nitrogen atmosphere at a gas pressure of 2.6 to 15 Pa. Further provided is a copper-clad laminate comprising a liquid crystal polymer film having a surface roughness after the plasma treatment of 0.15 μm or less in terms of arithmetic mean roughness Ra and 0.20 μm or less in terms of root-mean-square roughness Rq. Further provided is a method for manufacturing a copper-clad laminate, wherein a metal conductor layer is formed by dry plating and/or wet plating after subjecting a surface of a liquid crystal polymer film to plasma treatment in an oxygen atmosphere or a nitrogen atmosphere at a gas pressure of 2.6 to 15 Pa.

    摘要翻译: 提供一种覆铜层压板,其包括通过在氧气氛或氮气氛中以气体压力对液晶聚合物膜的表面进行等离子体处理而获得的表面上通过干式电镀和/或湿式电镀形成的金属导体层 2.6〜15Pa。还提供了一种覆铜层压板,其包含在等离子体处理后的表面粗糙度为0.15μm以下的液晶聚合物膜,其算术平均粗糙度Ra为0.20μm以下, 均方粗糙度Rq。 还提供了一种制造覆铜层压板的方法,其中通过在氧气氛或氮气氛中对液晶聚合物膜的表面进行等离子体处理之后通过干电镀和/或湿法电镀形成金属导体层 气压为2.6〜15Pa。

    Ferroelectric liquid crystal display
    7.
    发明授权
    Ferroelectric liquid crystal display 失效
    铁电液晶显示屏

    公开(公告)号:US5507975A

    公开(公告)日:1996-04-16

    申请号:US266155

    申请日:1994-06-27

    摘要: A ferroelectric liquid crystal device having a pair of substrates each provided with voltage applying means, an orientation control layer formed on at least one of the substrates, and a layer of ferroelectric liquid crystal composition disposed between the pair of substrates, the ferroelectric liquid crystal composition comprising at least one compound (a) having an optically active group of the formula (I): ##STR1## at least one compound (b) which is reverse to the compound (a) in the direction of a helical pitch induced in a nematic phase and at least one liquid crystal compound (c) exhibiting a smectic C phase, the liquid crystal composition exhibiting at least a smectic C phase, smectic A phase and nematic phase.

    摘要翻译: 一种具有一对基板的铁电液晶装置,每个基板设置有电压施加装置,形成在至少一个基板上的取向控制层以及设置在该对基板之间的铁电液晶组合物层,铁电液晶组合物 包含至少一种具有式(I)的光学活性基团的化合物(a):(I)至少一种与化合物(a)相反的化合物(b)在螺旋桨诱导的方向上 在向列相和至少一种显示近晶相C的液晶化合物(c)中,该液晶组合物至少表现出近晶C相,近晶A相和向列相。

    Copper foil for printed circuits and process for producing the same
    8.
    发明授权
    Copper foil for printed circuits and process for producing the same 失效
    印刷电路用铜箔及其制造方法

    公开(公告)号:US5366814A

    公开(公告)日:1994-11-22

    申请号:US153327

    申请日:1993-11-16

    摘要: A copper foil for printed circuits has a roughened layer formed on the side of the foil to be bonded to a base, the roughened layer consisting of a number of protuberant copper electrodeposits containing chromium tungsten or both. It may also have a copper plating layer covering the roughened layer and a treatment layer covering the copper plating layer and formed of either a metal selected from the group consisting of copper, chromium, nickel, iron, cobalt, and zinc, or an alloy of two or more such metals. When necessary, the copper foil may contain an anticorrosive layer including various chromate treated layers further formed on the treatment layer. The copper foil is produced by electrolyzing a raw foil as a cathode in an acidic copper electrolytic bath at a current density close to the critical density, thereby forming the roughened layer, the electrolytic bath containing 0.001-5 g/l of chromium ion tungsten ion or both. The roughened layer is electrolytically overcoated with the treatment layer following the formation of a copper plating layer, which, when necessary, is anti-corrosively treated.

    摘要翻译: 用于印刷电路的铜箔具有形成在箔的与基底结合的一侧上的粗糙层,该粗糙层由许多包含铬钨或两者的突出铜电沉积物组成。 还可以具有覆盖粗糙层的铜镀层和覆盖铜镀层的处理层,并且由选自铜,铬,镍,铁,钴和锌的金属形成,或者由 两种或更多种这样的金属。 必要时,铜箔可以含有在处理层上进一步形成的各种铬酸盐处理层的防腐层。 铜箔通过在酸性铜电解槽中以接近临界密度的电流密度电解原料箔作为阴极,由此形成粗糙层,电解槽含有0.001-5g / l的铬离子钨离子 或两者。 在形成镀铜层之后,用处理层对粗化层进行电解过涂层,当需要时,其被抗腐蚀处理。

    Liquid crystalline compounds, liquid crystal compositions containing the
same and use thereof
    9.
    发明授权
    Liquid crystalline compounds, liquid crystal compositions containing the same and use thereof 失效
    液晶化合物,含有它们的液晶组合物及其应用

    公开(公告)号:US5338482A

    公开(公告)日:1994-08-16

    申请号:US557777

    申请日:1990-07-26

    摘要: Liquid crystalline compounds having an optically active .gamma.-lactone ring of the general formula (A): ##STR1## wherein R.sup.1 is a group selected from the class consisting of ##STR2## n and e are each independently 0 or 1, R.sup.3 is an alkyl group having 1 to 15 carbon atoms or an alkenyl group having 2 to 15 carbon atoms, said alkyl and alkenyl groups having each optionally one or more asymmetric carbon atoms, X and Y are each hydrogen atom, a halogen atom or a cyano group, R.sup.2 is an alkyl group having 1 to 15 carbon atoms or an alkenyl group having 2 to 15 carbon atoms, said alkyl and alkenyl groups having each optionally one or more asymmetric carbon atoms, and * means an asymmetric carbon atom, a liquid crystal composition Containing the same and an element for opto-electronics devices comprising the liquid crystal composition.

    摘要翻译: 具有通式(A)的光学活性的γ-内酯环的液晶化合物:其中R 1是选自下列的基团:其中R 1是选自下列的基团: 独立地为0或1,R3为具有1至15个碳原子的烷基或具有2至15个碳原子的烯基,所述烷基和烯基各自为一个或多个不对称碳原子,X和Y各自为氢原子, 卤素原子或氰基,R 2为碳原子数为1〜15的烷基或碳原子数为2〜15的烯基,所述烷基和烯基各自为一个以上的不对称碳原子,*表示不对称的 碳原子,含有该液晶组合物的液晶组合物和包含液晶组合物的光电子器件的元件。