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    Process for producing molded articles of polyimide precursor
    4.
    发明公开
    Process for producing molded articles of polyimide precursor 失效
    Verfahren zur Herstellung von Formmassen aus Polyimidvorprodukt。

    公开(公告)号：EP0541055A1

    公开(公告)日：1993-05-12

    申请号：EP92118873.6

    申请日：1992-11-04

    申请人： CHISSO CORPORATION

    发明人： Kurita, Mitsuo ,  Kikuta, Kazutsune ,  Oka, Keizo

    IPC分类号： C08J3/14 ,  C08G73/10 ,  C08L79/08

    CPC分类号： C08J3/091 ,  B29C47/0021 ,  B29C47/786 ,  B29C47/822 ,  B29C47/862 ,  B29C47/8805 ,  C08G73/1028 ,  C08G73/1032 ,  C08J2379/08

    摘要： The present invention provides a process for producing molded articles of a polyimide precursor by the use of a usual extrusion technique, and physical properties of polyimide products prepared by the heat treatment of the molded articles of the polyimide precursor at 400°C are excellent. This process is characterized by drying a solid obtained by pouring a dilute solution of a polyimide precursor comprising an aromatic tetracarboxylic acid component and an aromatic diamine component in a bad solvent to obtain a dry solid having a polyimide precursor concentration of 50-70% by weight, and then extruding this dry solid at 80-130°C.

    摘要翻译： 本发明提供了通过使用通常的挤出技术制造聚酰亚胺前体的模制品的方法，并且通过在400℃下对聚酰亚胺前体的模塑制品进行热处理制备的聚酰亚胺产品的物理性能是优异的。 该方法的特征在于将通过将包含芳族四羧酸组分和芳族二胺组分的聚酰亚胺前体的稀溶液倒入不良溶剂中而获得的固体进行干燥，得到聚酰亚胺前体浓度为50-70重量％的干固体 ，然后在80-130℃下挤出该干燥固体。

    Printing ink composition
    6.
    发明公开
    Printing ink composition 失效
    Zusammensetzung von Drucktinte。

    公开(公告)号：EP0410702A2

    公开(公告)日：1991-01-30

    申请号：EP90308106.5

    申请日：1990-07-24

    申请人： Chisso Corporation

    发明人： Kawamoto, Takao ,  Yano, Hitoshi ,  Kikuta, Kazutsune ,  Konotsune, Shiro

    IPC分类号： H05K3/28 ,  H01B3/30 ,  C08L79/08

    CPC分类号： H05K3/285 ,  C08L79/08 ,  C09D11/102 ,  H05K1/0393

    摘要： A printing ink composition comprises (i) a polyamide-acid (A); (ii) a partially imidized polyamide-acid (B) containing repeating units of the formulae (I), (II) and (III);

    (in which R¹ is a tetravalent organic group and R² a divalent organic group); and (iii) a solvent;
    in which composition (a) the weight ratio of the polyamide-acid (A) to the partially imidized polyamide-acid (B) [(A)/(B)] is from 0/1 to 100/1; and (b) the total amount of the polyamide-acid (A) and the partially imidized polyamide-acid (B) is 5-50% by weight of the total amount of the polyamide-acid (A), the partially imidized polyamide-acid (B) and the solvent.

    摘要翻译： 印刷油墨组合物包含（i）聚酰胺酸（A）; （ii）含有式（I），（II）和（III）的重复单元的部分酰亚胺化的聚酰胺酸（B）; （其中R 1是四价有机基团，R 2是二价有机基团）; 和（iii）溶剂; 其中组合物（a）聚酰胺酸（A）与部分酰亚胺化的聚酰胺酸（B）[（A）/（B）]的重量比为0/1〜100/1; 和（b）聚酰胺酸（A）和部分酰亚胺化的聚酰胺酸（B）的总量为聚酰胺酸（A）总量的5-50重量％，部分酰亚胺化的聚酰胺 - 酸（B）和溶剂。

    A polyimide having a low elastic modulus and the production thereof
    8.
    发明公开
    A polyimide having a low elastic modulus and the production thereof 失效
    Polyimid mit niedrigemElastizitätsmodulund seine Herstellung。

    公开(公告)号：EP0370723A1

    公开(公告)日：1990-05-30

    申请号：EP89311991.7

    申请日：1989-11-20

    申请人： CHISSO CORPORATION

    发明人： Konotsune, Shiro ,  Kawamoto, Takao ,  Kikuta, Kazutsune

    IPC分类号： C08G73/10 ,  C08G77/42

    CPC分类号： C08G73/1042 ,  C08G73/106 ,  C08G77/455

    摘要： A solvent-soluble polyimide having a low elastic modulus comprises from 60 to 99 mol % of repeating units of the formula:
    (in which Ar is a tetravalent aromatic group; the groups X and Y are each independently a C₁-C₄ alkyl group, a halogen atom, a carbonyl group or a hydroxyl group; and ℓ and m are each 0, 1, 2 and 3); and from 1 to 40 mol % of repeating units of formula:
    (in which R¹ is a C₃-C₅ alkylene group or a phenylene group; R² is a C₁-C₄ alkyl group or a phenyl group; and n is an integer of 20 to 300).
    The polyimide is produced by reacting an appropriate aromatic diamine, silicone diamine and aromatic tetracarboxylic acid dianhydride in an organic polar solvent at 20 to 250°C.

    摘要翻译： 具有低弹性模量的溶剂可溶性聚酰亚胺包含60至99摩尔％的下式的重复单元：（其中Ar是四价芳族基团;基团X和Y各自独立地为C 1 -C 4烷基 基团，卤素原子，羰基或羟基; l和m各自为0,1,2和3）; 和1至40摩尔％的式：的重复单元（其中R 1为C 3 -C 5亚烷基或亚苯基; R 2为C 1 -C 4烷基或苯基 ; n为20〜300的整数）。 聚酰亚胺通过使适当的芳族二胺，硅氧烷二胺和芳族四羧酸二酐在有机极性溶剂中在20至250℃下反应来制备。