Invention Application
US20120003458A1 BIAXIALLY STRETCHED POLYAMIDE RESIN FILM HAVING GAS BARRIER PROPERTIES AND PROCESS FOR PRODUCING THE BIAXIALLY STRETCHED POLYAMIDE RESIN FILM 审中-公开
具有气体阻隔性能的双向拉伸聚酰胺树脂膜和用于生产双向拉伸聚酰胺树脂膜的方法

  • Patent Title: BIAXIALLY STRETCHED POLYAMIDE RESIN FILM HAVING GAS BARRIER PROPERTIES AND PROCESS FOR PRODUCING THE BIAXIALLY STRETCHED POLYAMIDE RESIN FILM
  • Patent Title (中): 具有气体阻隔性能的双向拉伸聚酰胺树脂膜和用于生产双向拉伸聚酰胺树脂膜的方法
  • Application No.: US12934292
    Application Date: 2009-03-12
  • Publication No.: US20120003458A1
    Publication Date: 2012-01-05
  • Inventor: Xiaorui WuNobuhiro TanakaAtsuko Noda
  • Applicant: Xiaorui WuNobuhiro TanakaAtsuko Noda
  • Applicant Address: JP Hyogo
  • Assignee: UNITIKA LTD.
  • Current Assignee: UNITIKA LTD.
  • Current Assignee Address: JP Hyogo
  • Priority: JP2008-080970 20080326
  • International Application: PCT/JP2009/001100 WO 20090312
  • Main IPC: B32B5/00
  • IPC: B32B5/00 B29C55/12 B32B27/06
BIAXIALLY STRETCHED POLYAMIDE RESIN FILM HAVING GAS BARRIER PROPERTIES AND PROCESS FOR PRODUCING THE BIAXIALLY STRETCHED POLYAMIDE RESIN FILM
Abstract:
Disclosed are a biaxially stretched polyamide resin film having gas barrier properties and a process for producing the biaxially stretched polyamide resin film having gas barrier properties. In this film, a gas barrier coat layer is formed on at least one side of a biaxially stretched polyamide resin film, the thickness of the gas barrier coat layer is 0.5 to 5 μm, and the amount of the extracted monomer in the polyamide resin film is 0.1% by mass or less. The production process includes, in the order of description, the steps of removing the monomer in an unstretched polyamide resin film, biaxial stretching, and laminating an anchor coat layer, performed where necessary, and forming a gas barrier coat layer.
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