申请人:Iida Kenji
公开号:US20130288120A1
公开(公告)日:2013-10-31
To provide a resin composition that contains a solvent-soluble polyimide and can provide a film exhibiting high viscoelasticity and flexibility at high temperatures. To attain this, a polyimide resin composition is provided that includes a polyimide having a polycondensation unit of a tetracarboxylic acid dianhydride and a diamine, wherein the tetracarboxylic acid dianhydride includes an (α1) tetracarboxylic acid dianhydride represented by general formula (1), or the diamine includes an (β1) aromatic diamine represented by general formula (2), the diamine includes an (β2) aliphatic diamine represented by general formula (3) or (4), a total amour of the (α1) tetracarboxylic acid dianhydride and the (β1) aromatic diamine is 5 to 49 mol % with respect to a total amount of the tetracarboxylic acid dianhydride and the diamine, and an amine equivalent of the polyimide is 4,000 to 20,000.
提供一种含有可溶于溶剂的聚酰亚胺的树脂组合物,能够在高温下提供高粘弹性和柔性的薄膜。为实现这一目标,提供了一种聚酰亚胺树脂组合物,其中包括具有四羧酸二酐和二胺的聚酰亚胺,其中所述的四羧酸二酐包括由通式(1)表示的(α1)四羧酸二酐,或所述的二胺包括由通式(2)表示的(β1)芳香族二胺,所述的二胺包括由通式(3)或(4)表示的(β2)脂肪族二胺,所述(α1)四羧酸二酐和(β1)芳香族二胺的总量相对于四羧酸二酐和二胺的总量为5至49摩尔%,聚酰亚胺的胺当量为4,000至20,000。