申请人:MITSUBISHI GAS CHEMICAL COMPANY, INC.
公开号:EP1262524A2
公开(公告)日:2002-12-04
There is disclosed A polyester based resin composition (D) which comprises a polyamide resin (A) and a polyester resin (B), or a polyamide resin (A), a polyester resin (B) and a polyethylene terephthalate resin (C), characterized in that the polyester resin (B) is obtained by polycondensation of a dicarboxylic acid component containing 0.5 to 60 mol % of a dicarboxylic acid having a cyclic acetal skeleton and/or a diol component containing 0.5 to 60 mol% of a diol having a cyclic acetal skeleton, and that the blending proportions of the polyamide resin (A), the polyester resin (B) and the polyethylene terephthalate resin (C) are each in the range of 1 to 99% by weight, 1 to 99% by weight and 0 to 98% by weight, respectively on the basis of total sum weight of the components (A), (B) and (C). There is further disclosed a molded product (film, sheet, thin wall hollow container, etc.). The above polyester based resin composition and a product molded therefrom are each excellent in transparency color tone, gas barrier properties, pinhole resistance and mechanical performance.
本发明公开了一种聚酯基树脂组合物 (D),它包括聚酰胺树脂 (A) 和聚酯树脂 (B),或聚酰胺树脂 (A)、聚酯树脂 (B) 和聚对苯二甲酸乙二醇酯树脂 (C),其特征在于聚酯树脂 (B) 是通过缩聚含有 0.5 至 60 摩尔 % 环缩醛骨架的二羧酸组分和/或含有 0.聚酰胺树脂(A)、聚酯树脂(B)和聚对苯二甲酸乙二醇酯树脂(C)的混合比例分别为1-99%(重量)、1-99%(重量)和0-98%(重量),以组分(A)、(B)和(C)的总重量为基础。进一步公开了一种模塑产品(薄膜、片材、薄壁中空容器等)。上述聚酯基树脂组合物及其模塑产品在透明度、色调、气体阻隔性、抗针孔性和机械性能方面均具有优异的性能。