Aromatic diamine and polyimde, and preparation process of same
    2.
    发明公开
    Aromatic diamine and polyimde, and preparation process of same 失效
    Aromatische Diamin und Polyimid,Verfahren zu ihrer Herstellung。

    公开(公告)号:EP0565352A2

    公开(公告)日:1993-10-13

    申请号:EP93302719.5

    申请日:1993-04-07

    IPC分类号: C08G73/10 C07C217/90

    摘要: This invention relates to fluorine containing polyimide, a novel aromatic diamine which has a perfluoroalkyl radical and can be used as a raw material monomer of the polyimide, and a process for preparing the same.
    The polyimide comprise a requisite structural unit having one or more recurring structural units of the formula :

    such as the structural units of the formula

    Further, the present invention relates to a novel aromatic diamine which has a perfluoro radical and can be used as a raw material monomer of the polyimide, and a process for preparing the same.
    The present invention can provide polyimide which has an extremely low dielectric constant and is colorless, transparent and excellent in processability and heat resistance, and also provides an aromatic diamine which is useful as a raw material monomer of the polyimide or a raw material of other various engineering plastics.

    摘要翻译: 本发明涉及含氟聚酰亚胺,具有全氟烷基并可用作聚酰亚胺的原料单体的新型芳族二胺及其制备方法。 聚酰亚胺包含具有一个或多个下式的重复结构单元的必需结构单元:CHEM,例如式CHEM的结构单元。此外,本发明涉及一种新型芳族二胺,其具有全氟自由基, 用作聚酰亚胺的原料单体及其制备方法。 本发明可以提供具有极低介电常数且无色透明且加工性和耐热性优异的聚酰亚胺,并且还提供可用作聚酰亚胺的原料单体或其它各种原料的芳族二胺 工程塑料。

    Naphthalene compound, and liquid crystal composition and liquid crystal element using the same
    4.
    发明公开
    Naphthalene compound, and liquid crystal composition and liquid crystal element using the same 失效
    含有这种化合物的萘酚化合物以及液晶组合物和液晶元件

    公开(公告)号:EP0757032A2

    公开(公告)日:1997-02-05

    申请号:EP96304958.0

    申请日:1996-07-04

    IPC分类号: C07C69/94 C09K19/32

    摘要: Provided is a naphthalene compound represented by the following Formula (1) :

    wherein R 1 and R 2 each represent a linear or branched alkyl group having 1 to 20 carbon atoms, an alkoxyalkyl group having 2 to 20 carbon atoms or an alkenyl group having 2 to 20 carbon atoms which may be substituted with halogen atoms and have no asymmetric carbon atoms; A represents any of the groups represented by the following formulas:

    (wherein X 1 , X 2 , X 3 and X 4 each represent a hydrogen atom or a halogen atom); and z represents 0 or 1. The addition of this naphthalene compound to a liquid crystal composition makes it possible to improve various characteristics such as the high speed response property of the liquid crystal composition and the temperature dependency of the response time. The above naphthalene compound is useful as a liquid crystal material for liquid crystal compositions, particularly ferroelectric liquid crystal compositions.

    摘要翻译: 提供由下式表示的萘化合物(1): worin R1和R2各自表示具有在具有含2-20个碳原子或烯基的烷氧基烷基具有1-20个碳原子的直链或支链的烷基 可以被卤素原子substituiertem且没有不对称碳原子为2〜20个碳原子; 甲darstellt任何由下式表示的基团:(worin X1,X2,X3和X4各自代表氢原子或卤原子); 和z darstellt 0或1。另外,该萘化合物的液晶组合物,则能够改善各种特性:如液晶组合物的高速响应性和响应时间的温度依赖性。 上述萘化合物作为液晶组合物,特别是铁电液晶组合物的液晶材料是有用的。

    Aromatic diamine and polyimde, and preparation process of same
    5.
    发明公开
    Aromatic diamine and polyimde, and preparation process of same 失效
    芳香二胺和聚酰亚胺及其制备方法

    公开(公告)号:EP0565352A3

    公开(公告)日:1994-01-19

    申请号:EP93302719.5

    申请日:1993-04-07

    IPC分类号: C08G73/10 C07C217/90

    摘要: This invention relates to fluorine containing polyimide, a novel aromatic diamine which has a perfluoroalkyl radical and can be used as a raw material monomer of the polyimide, and a process for preparing the same. The polyimide comprise a requisite structural unit having one or more recurring structural units of the formula :

    such as the structural units of the formula Further, the present invention relates to a novel aromatic diamine which has a perfluoro radical and can be used as a raw material monomer of the polyimide, and a process for preparing the same. The present invention can provide polyimide which has an extremely low dielectric constant and is colorless, transparent and excellent in processability and heat resistance, and also provides an aromatic diamine which is useful as a raw material monomer of the polyimide or a raw material of other various engineering plastics.

    摘要翻译: 含氟聚酰亚胺及其制备方法本发明涉及含氟聚酰亚胺,一种具有全氟烷基的新型芳族二胺,可用作该聚酰亚胺的原料单体及其制备方法。 聚酰亚胺包含具有一个或多个下式的重复结构单元的必需结构单元:例如下式的结构单元另外,本发明涉及具有全氟基并可用作原料的新型芳族二胺 聚酰亚胺的单体及其制备方法。 本发明能够提供具有极低介电常数且无色透明并且加工性和耐热性优异的聚酰亚胺,并且还提供了作为聚酰亚胺的原料单体或其它各种原料的有用的芳香族二胺 工程塑料。