Invention Grant
US08026338B2 Method for producing polyimide film 有权
聚酰亚胺薄膜的制造方法

  • Patent Title: Method for producing polyimide film
  • Patent Title (中): 聚酰亚胺薄膜的制造方法
  • Application No.: US11793072
    Application Date: 2006-02-23
  • Publication No.: US08026338B2
    Publication Date: 2011-09-27
  • Inventor: Katsunori Yabuta
  • Applicant: Katsunori Yabuta
  • Applicant Address: JP Osaka
  • Assignee: Kaneka Corporation
  • Current Assignee: Kaneka Corporation
  • Current Assignee Address: JP Osaka
  • Agency: Kagan Binder, PLLC
  • Priority: JP2005-053861 20050228; JP2005-229933 20050808
  • International Application: PCT/JP2006/303325 WO 20060223
  • International Announcement: WO2006/093027 WO 20060908
  • Main IPC: C08G73/10
  • IPC: C08G73/10
Method for producing polyimide film
Abstract:
A method for producing a polyimide film comprises the steps of: preparing a polar organic solvent solution of a polyimide precursor obtained by mixing a tetracarboxylic acid dianhydride compound and a diamine compound; adding a dehydrating agent and an imidization catalyst to the polar organic solvent solution so as to prepare a resin solution composition; and drying the resin solution composition by heating so as to imidize the resin solution composition after flowing the resin solution composition onto a support in a casting manner, wherein diethyl pyridine is used as the imidization catalyst. According to the production method, it is possible to obtain a polyimide film which is highly productive and is excellent in the film quality such as the mechanical property, the adhesive strength, and the like.
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