Title:
MANUFACTURING METHOD FOR BIAXIALLY ORIENTED POLYESTER FILM
Document Type and Number:
Japanese Patent JP2004098373
Kind Code:
A
Abstract:
To provide a biaxially oriented polyester film sufficiently reduced in heat shrinkage being the fate of a biaxially oriented film and having good flatness.
The biaxially oriented polyester film is produced by heat-treating a biaxially oriented film comprising a polyester (polymer A) and a heat-resistant thermoplastic resin (polymer B) for 1-35sec. under feed tension of 0.2-1.2MPa.
Inventors:
NAKAJIMA SHOJI
TSUNEKAWA TETSUYA
HOSOKAWA HIROBUMI
TSUNEKAWA TETSUYA
HOSOKAWA HIROBUMI
Application Number:
JP2002261073A
Publication Date:
April 02, 2004
Filing Date:
September 06, 2002
Export Citation:
Assignee:
TORAY INDUSTRIES
International Classes:
C08J7/00; B29C55/12; C08L67/02; C08L79/08; C08L81/06; B29K67/00; B29L7/00; (IPC1-7): B29C55/12; C08J7/00; C08L67/02; C08L79/08; C08L81/06
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