Title:
ULTRA-HEAT-RESISTANT POLYESTER-BASED FILM
Document Type and Number:
Japanese Patent JPH04149244
Kind Code:
A
Abstract:
PURPOSE:To obtain the title film obtained by subjecting a copolyester synthesized from terephthalic acid and cyclohexane dimethanol and modified by a dibasic acid to film formation, stretching and heat setting treatment and having excellent dimensional stability and heat resistance. CONSTITUTION:The objective film obtained by subjecting a copolyester obtained by modifying a polymer synthesized from terephthalic acid and cyclohexane dimethanol with a dibasic acid other than terephthalic acid to film formation, stretching and heat setting treatment.
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Inventors:
YAMAOKA TAKAMASA
Application Number:
JP27467390A
Publication Date:
May 22, 1992
Filing Date:
October 12, 1990
Export Citation:
Assignee:
GUNZE KK
International Classes:
B29C55/02; C08G63/199; C08J5/18; C08L67/02; B29K67/00; B29L7/00; (IPC1-7): B29C55/02; B29K67/00; B29L7/00; C08G63/199; C08J5/18; C08L67/02