Title:
離型フィルムの製造方法
Document Type and Number:
Japanese Patent JP4200406
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a mold release film having excellent postprocessing suitability in the case of manufacturing a mounting sheet of an adhesive label, an adhesive tape or the like, a ceramic sheet or the like by using the film, usable as the film, and no necessity of incinerating or the like by decomposing in a natural field after using as the film. SOLUTION: The mold release film comprises an aliphatic polyester biaxially oriented film made of a polymer containing an aliphatic polyester of a main repeating unit of the formula: -O CHR-CO- (wherein R is H or 1-3C alkyl group) as a main component, a refractive index (Nz) of a thickness direction of 1.440 to 1.455, a value (Nx-Ny) obtained by subtracting a refractive index (Ny) of a width direction from a refractive index (Nx) of a lengthwise direction of -0.020 to 0, and a heat shrinkage factor of the lengthwise direction at 120 deg.C of 5% or below as a base material, and a mold release layer provided on at least one side surface of the oriented film.
Inventors:
Katsufumi Kumano
Naonobu Oda
Keiji Mori
Hisato Kobayashi
Tadashi Okuhira
Naonobu Oda
Keiji Mori
Hisato Kobayashi
Tadashi Okuhira
Application Number:
JP10206599A
Publication Date:
December 24, 2008
Filing Date:
April 09, 1999
Export Citation:
Assignee:
TOYO BOSEKI KABUSHIKI KAISHA
International Classes:
B32B27/36; C08J7/04; B32B27/00; C08L67/04; C08L101/16
Domestic Patent References:
| JP10119494A | ||||
| JP7205278A | ||||
| JP9208817A |