Title:
SIMULTANEOUS EXTRUDED FILM HAVING AMORPHOUS CORE
Document Type and Number:
Japanese Patent JPH10186578
Kind Code:
A
Abstract:
To provide a photographic film supporting body having a low core set and high tensile strength at a low cost.
This photographic supporting body includes a transparent amorphous polymer core layer B having glass transition temp. Tg. The core layer has first and second surfaces. A first outer layer A of a transparent crystalline polymer having a first orientation temp. Ts1 higher than the temp. Tg is formed on the first surface of the core layer B. A second outer layer A of a transparent crystalline polymer having a second orientation temp. higher than the Tg is formed on the second surface of the core layer B.
Inventors:
LANEY THOMAS M
GREENER JEHUDA
CHEN WEN-LI A
GREENER JEHUDA
CHEN WEN-LI A
Application Number:
JP31720497A
Publication Date:
July 14, 1998
Filing Date:
November 18, 1997
Export Citation:
Assignee:
EASTMAN KODAK CO
International Classes:
B29C55/12; B29D7/01; B32B27/08; B32B27/36; G03C1/795; B29K67/00; B29L9/00; (IPC1-7): G03C1/795; B29C55/12; B29D7/01; B32B27/08
Attorney, Agent or Firm:
Takashi Ishida (3 others)