Title:
POLYESTER FILM
Document Type and Number:
Japanese Patent JP3530221
Kind Code:
B2
Abstract:
PURPOSE: To provide a polyester film showing improved heat ageing characteristics.
CONSTITUTION: A polyester film contains a polyester having intrinsic viscosity (IV) of 0.65-0.8, containing an effective amt. of an antioxidant, having an endothermic high temp. peak at a temp. of (A)°C and an endothermic low temp. peak at a temp. of (B)°C when measured by a differential scanning calorimeter(DSC) and having an (A-B) value of 20-50°C.
Inventors:
Mortlock, Simon V.
Lewis, Barry J.
Lewis, Barry J.
Application Number:
JP6047394A
Publication Date:
May 24, 2004
Filing Date:
March 30, 1994
Export Citation:
Assignee:
IMPERIAL CHEM IND PLC <ICI>
International Classes:
B29C55/02; B29D7/01; C08G63/183; C08J5/18; C08K5/00; C08K5/134; C08L67/00; (IPC1-7): C08J5/18; B29C55/02; C08K5/00; C08L67/00
Attorney, Agent or Firm:
谷 義一 （外２名）
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