Patent ID: 6086989
Filing Date: 2000-07-11
Classification: B32B,C08J,Y10S,Y10T

Abstract:
A biaxially oriented polyester film to be laminated onto a metal plate and molded,(A) which comprises a copolyester, said copolyester comprising (a) terephthalic acid in an amount of 82 to 100 mol % and 2,6-naphthalenedicarboxylic acid or a combination of 2,6-naphthalenedicarboxylic acid and other dicarboxylic acids in an amount of 0 to 18 mol % of the total of all dicarboxylic acid components and (b) ethylene glycol in an amount of 82 to 100 mol % and cyclohexanedimethanol or a combination of cyclohexanedimethanol and other diols in an amount of 0 to 18 mol % of the total of all diol components, and having (c) a glass transition temperature of 78.degree. C. or higher and (d) a melting point of 210 to 250.degree. C., and(B) which has the following relationship between the highest peak temperature (Te, .degree. C.) of loss elastic modulus and the glass transition temperature (Tg, .degree. C.):Te-Tg.ltoreq.30.