Transparent articles of polyester resin
    4.
    发明授权
    Transparent articles of polyester resin 有权
    透明制品的聚酯树脂

    公开(公告)号:US06258452B1

    公开(公告)日:2001-07-10

    申请号:US09488294

    申请日:2000-01-20

    IPC分类号: B29D701

    摘要: Transparent, articles, in particular sheets, having a thickness greater than 5 mm obtained from polyalkylene terephthalate/isophthalate resin containing 5-20% of isophthalic, acid units,. characterised by an intrinsic viscosity greater than 0.8 dl/g; a melt strength at 280° C. greater than 1 cN and a melt viscosity at 280° C. greater than 2000 Pa·s for shear rates tending to zero and not less than 200 Pa·s for shear rates of 1000 sec−1.

    摘要翻译: 由含有5-20%间苯二甲酸,酸性单元的聚对苯二甲酸亚烷基酯/间苯二甲酸酯树脂获得的厚度大于5mm的透明制品,特别是片材。 其特征在于特性粘度大于0.8dl / g; 在280℃下的熔体强度大于1cN,在280℃下的熔体粘度大于2000Pa·s,对于剪切速率为1000sec -1,剪切速率趋于零并且不小于200Pa.s。