申请人:MITSUI PETROCHEMICAL INDUSTRIES, LTD.
公开号:EP0171272A2
公开(公告)日:1986-02-12
An aromatic copolyester from which molded articles can be prepared comprises substantially equimolar proportions of [A] units derived from an aromatic dicarboxylic acid having 8 to 16 carbon atoms and [B] units derived from an aromatic diol component composed of (a) 20 to 95 mole %, based on the total moles of compounds (a) and (b) below, of a bisphenol compound represented by the formula
wherein X represents a direct bond or a divalent group selected from C1-X8 alkylidene groups, 0, S, SO, S02 and CO, and
(b) 5 to 80 mole %, based on the total moles of the compounds (a) and (b), of a compound selected from specific divalent phenolic compounds.
The aromatic copolyester has an intrinsic viscosity [η], determined at 60°C in pentafluorophenol, of at least 0.4 dl/g.
一种芳香族共聚聚酯,可以用其制备模塑制品,该共聚聚酯包括基本上等摩尔比例的由具有 8 至 16 个碳原子的芳香族二羧酸衍生出的[A]单元和由芳香族二元醇组分衍生出的[B]单元,芳香族二元醇组分包括 (a) 20 至 95 摩尔%(以下面化合物(a)和(b)的总摩尔数为基准)的双酚化合物,双酚化合物的代表式为
其中 X 代表直接键或选自 C1-X8 亚烷基、0、S、SO、S02 和 CO 的二价基团,以及
(b) 5 至 80 摩尔%(以化合物(a)和(b)的总摩尔数为基准)选自特定二价酚类化合物 的化合物。
芳香族共聚聚酯的固有粘度[η]在 60°C 的五氟苯酚中测定,至少为 0.4 分升/克。