Title:
BIAXIALLY ORIENTED POLYESTER FILM AND PRODUCTION THEREOF
Document Type and Number:
Japanese Patent JP3834863
Kind Code:
B2
Abstract:
PURPOSE: To supply a film extremely high in strength and to enhance quality even if the film is made thin especially in the case used as a magnetic tape.
CONSTITUTION: A biaxially oriented polyester film is characterized in that the Young's modulus in either one of the longitudinal and lateral directions of the film is 1000kg/m2 or more and the sum of Young's moduluses in the longitudinal and lateral directions of the film is 1600kg/mm2 or more.
Inventors:
Kenji Tsunashima
Hidehito Minamizawa
Katsuya Toyoda
Hidehito Minamizawa
Katsuya Toyoda
Application Number:
JP9195796A
Publication Date:
October 18, 2006
Filing Date:
March 21, 1996
Export Citation:
Assignee:
TORAY INDUSTRIES,INC.
International Classes:
B29C55/12; C08J5/18; C08G63/183; C08G63/82; C08L67/00; C08L67/02; G11B5/73; G11B5/733; B29K67/00; B29L7/00; C08L67/03; (IPC1-7): B29C55/12; C08G63/183; C08J5/18; C08L67/02; G11B5/704; //B29K67:00; B29L7:00; C08L67:03
Domestic Patent References:
| JP62135339A | ||||
| JP62241129A | ||||
| JP5261805A | ||||
| JP5286028A | ||||
| JP8025473A |
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