Title:
BIAXIALLY ORIENTED POLYAMIDE FILM AND PRODUCTION THEREOF
Document Type and Number:
Japanese Patent JPH0847972
Kind Code:
A
Abstract:
PURPOSE: To provide a biaxially oriented polyamide film excellent in bending pinhole resistance, dimensional stability and longitudinal tearing linearity.
CONSTITUTION: A biaxially oriented polyamide film is based on a mixture of nylon 6 (N6) and aliphatic polyamide resin (PA) other than N6 in a wt. ratio of (75-99/(25-1) and characterized by that the difference between the surface tension (dyne/cm) of N6 and that of PA satisfies formula 3.0≤γA-γB≤1 (wherein γA is the surface tension of N6 and γB is the surface tension of PA) and has longitudinal tearing linearily.
Inventors:
OKAMOTO TAKASHI
KISHIDA MINORU
HIOKI MASANOBU
ISHIKAWA ATSUHIRO
KAWAKITA SHUNICHI
KISHIDA MINORU
HIOKI MASANOBU
ISHIKAWA ATSUHIRO
KAWAKITA SHUNICHI
Application Number:
JP5745895A
Publication Date:
February 20, 1996
Filing Date:
March 16, 1995
Export Citation:
Assignee:
UNITIKA LTD
International Classes:
B29C48/305; B29C55/12; B32B27/34; B65D65/38; C08J5/18; C08L77/00; C08L77/02; B29C48/00; B29C48/08; B29K77/00; B29L7/00; C08L77/06; (IPC1-7): B29C55/12; B29C47/14; B29C47/88; C08J5/18; C08L77/02