Title:
POLYSTYRENE LAMINATED FILM
Document Type and Number:
Japanese Patent JPH07256833
Kind Code:
A
Abstract:
PURPOSE: To obtain a polystyrene laminated film and, more particularly, an oriented syndiotactic polystyrene resin-containing laminated film having excellent optical properties and excellent heat resistance.
CONSTITUTION: A polystyrene laminated film comprises a layer formed of resin composition containing polystyrene polymer having a syndiotactic structure and a layer formed of resin composition exhibiting positive double refraction upon orientation and has a retardation of 500nm or less.
Inventors:
ODA NAONOBU
YOSHINAGA TOMONORI
OKUDAIRA TADASHI
YOSHINAGA TOMONORI
OKUDAIRA TADASHI
Application Number:
JP5587794A
Publication Date:
October 09, 1995
Filing Date:
March 25, 1994
Export Citation:
Assignee:
TOYO BOSEKI
International Classes:
B32B7/02; B29C55/14; B32B27/30; B29K25/00; B29L9/00; (IPC1-7): B32B27/30; B29C55/14; B32B7/02
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