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专利名称：BIAXIALLY ORIENTED POLYESTER FILM.发明人：ITOYAMA, KUNIYOSHI 1085-14, NANGO 6-CHOME,HORITA, NORIHIRO,SEKI,SHIGEMI,MINAMI, SATOYUKI
申请号：EP86902036申请日：19860401公开号：EP0314785A4公开日：190405
摘要：Biaxially oriented polyester film, the blend polymer of polyester (A) and thecopolyesters (B) with the repetitive unit for leading to formula (I) and (II) and/or (III)including the repetitive unit with logical formula (I), and there is the flowing initiationtemperature not higher than 350 DEG C, and the molar fraction of (II) and (III) of themelting anisotropy Forming ability based on total polymer blend is 0.5~18 moles of %. Inpublic formula (I), n represents 2,4 or 6, and R represents α, β and γ (wherein X
represents H or Cl, and wherein at least one is Cl). In public formula (II) and (III), R? 1, RIIand RIII_ respectively represent selected from 1,3- benzene, Isosorbide-5-Nitrae-benzene, 2,6- naphthalenes, 2,7- naphthalenes, δ, ε and in group. One plane of crystal ofpolyester (A) is orientated relative to film surface, and surface orientation coefficient is0.75 to 0.95, crystalline size is 35 to 75_ on plane of crystal direction.
申请人：TORAY INDUSTRIES, INC.
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