Title:
BIAXIALLY ORIENTED POLYPROPYLENE FILM
Document Type and Number:
Japanese Patent JP2022190664
Kind Code:
A
Abstract:
To provide a biaxially oriented polypropylene film having high rigidity, excellent also in heat resistance at a high temperature of 150°C, easily maintaining a bag shape when formed into a packaging bag, and less in wrinkle of a sealed portion when offset or heat sealed during printing time.SOLUTION: A biaxially oriented polypropylene film satisfying the following formulas (1) to (4). (1) Thermal shrinkage at 150°C. is 10% or less in the longitudinal direction and 24% or less in the width direction. (2) The tensile elongation at break is 195% or more in the longitudinal direction at 23°C. (3) The longitudinal refractive index Nx is 1.5050 or less. (4) The refractive index Nz in the thickness direction is 1.5010 or less.SELECTED DRAWING: None
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Inventors:
TANEKI KENSUKE
IMAI TORU
YAMADA KOJI
HORINOUCHI KAZUHITO
NAKANO ASAHIRO
IMAI TORU
YAMADA KOJI
HORINOUCHI KAZUHITO
NAKANO ASAHIRO
Application Number:
JP2022056362A
Publication Date:
December 26, 2022
Filing Date:
March 30, 2022
Export Citation:
Assignee:
TOYO BOSEKI
International Classes:
C08J5/18; B29C55/12; B29C61/06
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