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    • 39. 发明专利
    • Novel polyamic acid, polyimide, and its use
    • 新型聚氨酯,聚酰亚胺及其用途
    • JP2008308553A
    • 2008-12-25
    • JP2007156619
    • 2007-06-13
    • Mitsui Chemicals Inc三井化学株式会社
    • HIROTA KOSUKEFUNAKI KATSUHIKO
    • C08G73/10C09J179/08H05K1/03
    • PROBLEM TO BE SOLVED: To provide a polyimide resin with high transparency useful as a circuit material, excellent in warpage-proof property and bending-proof property, soluble in an organic solvent of a low boiling point and capable of being imidized at a low temperature, and a polyamic acid, i.e., its precursor.
      SOLUTION: The novel polyamic acid contains a 4,4-oxydiphthalic acid dianhydride and a diamine (I) represented by formula (2) (wherein, R
      1 , R
      2 , R
      4 , R
      5 , R
      7 , R
      8 , R
      10 , R
      11 , R
      13 and R
      14 each independently represents a hydrogen atom or a 1-5C alkyl group which may be the same or different, R
      3 , R
      6 , R
      9 , R
      12 and R
      15 represent a 1-5C alkylene group, and m, n and p each independently represents an integer of 0 or higher) as essential components.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了提供具有高透明度的聚酰亚胺树脂,可用作电路材料,具有优异的耐翘曲性和抗弯曲性,可溶于低沸点有机溶剂并能够被酰亚胺化 低温,和聚酰胺酸,即其前体。 解决方案:新型聚酰胺酸含有4,4-氧联二邻苯二甲酸二酐和由式(2)表示的二胺(I)(其中R 1,R 2,R 2, SB>,R SB 4,R SB 5,R SB 7,R SB 8,R SB 10, SB“,R SB 11,R SB 13和R SB 14各自独立地表示氢原子或可以相同的1-5C烷基 或者不同的是,R SB 3,R SB 3,R SB 9,R SB 12和SB 17, SB>表示1-5C亚烷基,m,n和p各自独立地表示0以上的整数)作为必要成分。 版权所有(C)2009,JPO&INPIT