Title:
光学フィルム製造用ポリエステルフィルム
Document Type and Number:
Japanese Patent JP6531555
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a polyester film for manufacturing an optical film capable of being used a substrate for achieving manufacturing an optical film capable of being drawn by roll to roll and having high productivity.SOLUTION: There is provided a polyester film for manufacturing an optical film having 10% elongation stress in a film MD direction at 150°C of 5 MPa to 30 MPa, thermal shrinkage in the film MD direction at 150°C of 5% or less and average length of a roughness curve element of a film surface RSm of 20 μm to 70 μm.SELECTED DRAWING: None
Inventors:
Yoshikazu Kono
Hideo Souji
Nishiguchi Yoshiki
Hideo Souji
Nishiguchi Yoshiki
Application Number:
JP2015162812A
Publication Date:
June 19, 2019
Filing Date:
August 20, 2015
Export Citation:
Assignee:
TORAY INDUSTRIES,INC.
International Classes:
B32B27/36; B32B7/022; C08J5/18
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Foreign References:
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